V8.5 Thermal Plotter
User Guide
V8.5 Thermal Plotter is a product of iSys - The Imagaing Systems Group. © 2005
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COPYRIGHT NOTICE
This document is copyrighted by The Imaging Systems Group Inc.,
2000. No part of this publication may be reproduced, transmitted,
transcribed, or stored in a retrieval system of any kind without prior
written permission of The Imaging Systems Group Inc.
TRADEMARKS
Centronics is a U.S. registered trademark of Centronics Data
Computer Corporation.
Versatec is a registered trademark of Versatec Corporation.
DISCLAIMER
The Imaging Systems Group Inc. makes no warranties as to the
accuracy, validity or fitness for use of the contents of this manual.
The Imaging Systems Group Inc. reserves the right to revise the
information in this manual at any time without notice.
HAFTUNGSAUSSCHLUSS
Imaging Systems Group Inc. übernimmt keinerlei Garantie hinsichtlich
der Genauigkeit, Gültigkeit und Anwendbarkeit dieses Handbuches.
Imaging Systems Group Inc. behält sich das Recht vor, die in diesem
Handbuch enthaltenen Informationen jederzeit ohne vorherige
Ankündigung zu ändern.
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ATTENTION:TheV8.5eplottergenerates,usesandcanradiateradio
frequencyenergyand,ifnotinstalledandusedinaccordancewith
the instruction manual, may cause interference to radio
communications. It has been designed to comply with the
requirementsforClassAcomputingdevicespursuanttoSub-partJof
Part15ofFCCRules, whicharedesignedtoprovidereasonable
protectionagainstsuchinterferencewhenoperatedinacommercial
environment.Operationofthisequipmentinaresidentialareaislikely
tocauseinterferenceinwhichcase,theuser,athisownexpense,will
berequiredtotakewhatevermeasuresmayberequiredtocorrect
theinterference.
ACHTUNG: DerV8.5ePlottererzeugt, verwendetundverbreitet
Hochfrequenzenergieundkanndaher,imFalle,dassernichtgemäß
demBenutzerhandbuchinstalliertundbenutztwird,zuStörungen
imHochfrequenzKommunikationsverkehrführen. Erwurdegemäß
denAnforderungenfürRechnergerätederKlasseAkonstruiertund
erfülltUnterabsatzJdesTeils15derFCCVorschriften,diedazugedacht
sind,einenangemessenenSchutzbeiEinsatzdieserGeräteineiner
gewerblichenUmgebungzusichern.EinEinsatzdieserGerätein
WohngebietenwirdwahrscheinlichStörungenverursachen, im
welchemFallederBenutzeraufeigeneKostendienotwendigen
Maßnahmen ergreifen muß, die erforderlich sind, um solche
Störungenzuvermeiden.
V8.5eRev2.2.2002
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Caution! – must be observed to avoid loss or damage to your
equipment.
Important: - must be observed to avoid operational impairment.
Do not proceed past any of the above notices, until you have fully
understood the implications.
Electromagnetic Compatibility (EMC) USA – This equipment
generates and radiates radio frequency energy and if not installed
and used in accordance with the instruction manual, may cause
interference to radio communications. It has been tested and found
to comply with the limits for a Class A computing device pursuant to
Subpart B of Part 15 of FCC rules, which are designed to provide
reasonable protection against such interference when operated in a
commercial environment. Operation of this equipment in a residential
area is likely to cause interference in which case the user at his own
expense will be required to take whatever measures may be required
to correct the interference. Shielded cables should be used with this
unit to ensure compliance with the Class A limits.
Europe – This digital equipment fulfils the requirements for radiation
emission according to limit B of EN55022/A1 May 1998, and the
requirements for immunity according to EN55024 1998 residential,
commercial, and light industry (Compliance is not valid for unshielded
network and printer cables).
Vorsicht! – Muss befolgt werden, um Totalverlust oder Beschädigung
des Gerätes zu vermeiden.
Wichtig: - Muss befolgt werden, um Beeinträchtigungen beim Betrieb
zu vermeiden.
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Bitte verfahren Sie erst dann weiter, wenn Sie die Bedeutung der
vorstehenden Hinweise vollständig verstanden haben.
Elektromagnetische Kompatibilität (EMC) USA – Dieses Gerät
erzeugt und verbreitet Hochfrequenzenergie und kann daher, sofern
es nicht gemäß dem Benutzerhandbuch installiert und benutzt wird,
zu Störungen im Hochfrequenz-Kommunikationsverkehr führen. Es
wurde gemäß den Einschränkungen für Rechnergeräte der Klasse A
konstruiert und erfüllt Unterabsatz J des Teils 15 der FCC Vorschriften,
die dazu gedacht sind, einen angemessenen Schutz bei Einsatz dieser
Geräte in einer gewerblichen Umgebung zu sichern. Ein Einsatz
dieser Geräte in Wohngebieten wird wahrscheinlich Störungen
verursachen, im welchem Falle der Benutzer auf eigene Kosten die
notwendigen Maßnahmen ergreifen muss, die erforderlich sind, um
solche Störungen zu beheben. Um die Einhaltung der Klasse-A-
Einschränkungen zu gewährleisten, sollte das Gerät mit geschirmten
Kabeln verwendet werden.
Europa – Dieses digitale Gerät entspricht den Anforderungen für
Strahlungsemissionen gemäß EN55022/A1 Klasse B vom Mai 1998,
sowie die Anforderungen für Störsicherheit gemäß EN55024 1998
für den häuslichen, gewerblichen und leichtindustriellen Gebrauch
(Konformität gilt nicht für ungeschirmte Netz- und Druckerkabel).
V8.5eRev2.2.2002
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LIMITATION OF LIABILITY
The Imaging Systems Group’s total liability to the purchaser, or to
any third party, for damages from any and all causes whatsoever,
regardless of the form of action, whether in contract or in tort,
including negligence, and any infringement of proprietary rights or
any misappropriation or unlawful use of any proprietary rights or
property of any third party shall, in the aggregate, be limited to
purchase price actually paid by the purchaser for the product relating
to the damages. The limitation of liability provisions of this agreement
reflect an informed voluntary allocation of the risks (known and
unknown) that may exist in connection with the provisions of the
goods and services provided hereunder by The Imaging Systems
Group Inc., and that such voluntary risk allocation represents a
fundamental part of the agreement reached between The Imaging
Systems Group Inc. and the purchaser.
The Imaging Systems Group Inc. shall not be liable for any special,
direct or indirect, incidental, consequential, exemplary, punitive or
any similar or other damages of any nature suffered by the purchaser
whatsoever including, without limitation, loss of use or lack of
availability of the purchaser facilities, including its computer resources
and any stored data, loss of profits or revenue, or other commercial
loss, or any claim for contribution or indemnity in respect of any
claims against the purchaser, regardless of whether The Imaging
Systems Group Inc. has been advised of the possibility of such
damages.
The Imaging Systems Group Inc.
911 28th Street N.E.
Calgary, Alberta T2A-7X1
Canada
Phone 1-866-415-4797
Fax: (403) 204-1971
e-mail: [email protected]
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Contents
1. INTRODUCTION ........................... 1-1
1.1 GENERALDESCRIPTION ....................1-1
1.2 MEDIADESCRIPTION ......................1-1
1.3 ABOUT THIS MANUAL .....................1-2
2. SPECIFICATIONS .......................... 2-1
2.1 FUNCTIONAL ...........................2-1
Operation ..............................2-1
Media .................................2-3
Thermalprinthead........................2-3
Transport ..............................2-4
2.2 ELECTRICAL ............................2-4
Interface ...............................2-4
Power consumption .......................2-4
Powerrequirements.......................2-4
2.3 PHYSICAL ..............................2-5
Dimensions .............................2-5
Weight ................................2-5
2.4 ENVIRONMENTAL ........................2-5
Temperature ............................2-5
Other .................................2-5
3. INSTALLATION ............................ 3-1
3.1 UNPACKING ............................3-1
3.2 MOUNTING AND POSITIONING ..............3-2
3.3 INTERFACESETUP ........................3-3
3.4 MEDIAINSTALLATION .....................3-3
Installingrolledpaper .....................3-4
Installingfan-foldpaper ....................3-8
Installingandusingfilm ....................3-8
Installingrolledfilm .......................3-9
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4. OPERATION .............................. 4-1
4.1 POWER SUPPLY PRECAUTIONS ...............4-1
4.2 USING THE CONTROL PANEL.................4-2
4.3 CONTROL PANEL FUNCTIONS AND SETTINGS.....4-5
Changingfunctionsettings ..................4-5
DefaultSettings ..........................4-6
Testplot ...............................4-6
Contrast ...............................4-6
Speed .................................4-7
Media .................................4-8
Scaling ................................4-9
Emulation(verticalresolution) .............. 4-10
Form feedlength........................ 4-10
Bytesperscan .......................... 4-12
Grayscalemediatablenumber .............. 4-13
SetupheadersforprogrammingtheV8.5e ...... 4-13
4.4 ERROR MESSAGES....................... 4-16
5. THEORY OF OPERATION ..................... 5-1
5.1 INTRODUCTION..........................5-1
5.2 PLOTTER FUNCTIONS AND FEATURES ..........5-1
Powersupplies...........................5-1
Steppermotor ...........................5-3
5.3 INTERFACE .............................5-3
Interfacetimingandsignals .................5-3
Datarates ..............................5-6
Scanwidth .............................5-7
Verticalresolution ........................5-7
Scaling ................................5-7
Printmode .............................5-8
5.4 THERMAL PRINTHEAD .....................5-9
AutomaticHeadTemperatureFeedback.........5-9
Filmmedia ............................ 5-10
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5.5 MEDIASENSORS ........................ 5-10
6. MAINTENANCE............................ 6-1
6.1 MAINTENANCE GUIDELINES .................6-2
6.2 REGULAR MAINTENANCE...................6-3
Cleaningthethermalprinthead...............6-4
Cleaningtheplatenroller ...................6-5
Replacingthefuse ........................6-6
7. TROUBLESHOOTING ........................ 7-1
7.1 INTRODUCTION..........................7-1
7.2 PROBLEMS .............................7-2
Plotterdoesnotplot ......................7-2
Plothasverticalwhitestripes ................7-3
Plotisblotchyorfaded .....................7-4
Plotcontrastisweak ......................7-5
Plothasblackverticallines ..................7-6
Plotiswronglength .......................7-7
Paperiswrinklingortearingalongoneedge .....7-7
Plotterhasnopower ......................7-8
Plotterdisplayisfunctioningbutmotor .........7-8
Can’tmakechangestocontrolpanelsettings.....7-8
Plotoutputspeediserratic ..................7-9
Burning smellduringplot,or“blooming”....... 7-10
Formfeedstopsbeforedesiredlength ......... 7-11
Formfeeddoesnotstopattop-of-formmarks ... 7-11
Plotisskewedorunreadable................ 7-12
8. WARRANTY .............................. 8-1
APPENDICES
A. ASCIITABLES .............................A-1
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B. INTERFACE CONNECTOR PIN ASSIGNMENT ....... B-1
C. CENTRONICS INTERFACE BOARD ............... C-1
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INTRODUCTION
1
1.1 GENERAL DESCRIPTION
The Imaging Systems Group’s V8.5e Thermal Plotter is a high-speed
plotter suitable for office or field use. Its small size and lightweight,
yet rugged construction makes it durable in mobile situations. The
V8.5e uses direct thermal plotting technology, so it requires no liquid
or powdered ink.
Interface parameter settings and other menu functions can be
accessed from either the front panel or the host computer. It is
capable of printing at four speeds; 1.0, 2.0, 3.0, and 4.0 inches per
second.
The V8.5e thermal plotter contains a completely new method of
plotting rasterized data. Each scan of data plotted can contain as
many as 64 independent intensity levels (gray scales). The thermal
print head (TPH)in the V8.5e is made up of 1728 thermal heater
nibs, and each one of these nibs can be heated to a different
energy level, producing a dot on the thermal media of varying
intensity. This type of plotting can produce high-resolution images
containing many shades of gray.
The V8.5e prints in both raster and character modes, and contains
a 96-character ASCII set. It interfaces with Versatec and optionally
Centronics data interfaces.
1.2 MEDIADESCRIPTION
The V8.5e uses rolled or fan-folded thermal paper or rolled film.
Media width is 8.75, and 9.0 inches. The V8.5e accommodates
regular thermal paper, papers with a protective top coating, as well
as certain types of film media. Call your Imaging Systems Group
product representative for media recommendations.
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INTRODUCTION
1
An optional fan-fold paper guide and feeder trays (which attach to
the back of the plotter, and below the rackmount plotter) are available
from The Imaging Systems Group which stabilizes the paper for
smooth intake of fanfold papers. These options are useful in field
situations or where vibration is a problem.
1.3 ABOUT THIS MANUAL
Please read this manual before using the plotter, in particular the
Installation and Operation Chapters, and the “Regular Maintenance”
section in the Maintenance Chapter.
Pay special attention to warnings, cautions and notes. The following
conventions are used in this manual:
CAUTION: Indicatespossibleequipmentdamageunlessprocedure
isfollowedcorrectly.
VORSICHT: VerweistaufdieGefahrderBeschädigungdesGerätes,
fallsdieVorschriftennichtgenaubefolgtwerden.
NOTE:Indicatesageneralruleforaprocedure,oranexceptiontoa
rule.
WICHTIGER HINWEIS: Verweist auf allgemeine
VerfahrensvorschriftenodereineAusnahmezueinerVorschrift.
Thissymbolindicatesanareaofpossibleconcerndueto
static dischargeintothecircuitry. Whenthissymbolap-
pearsinthemanual,pleaseobserveproperstaticprecau-
tionstominimize damagetothecircuitry.
Dieses Symbol warnt davor, dass es in diesen Bereichen
möglicherweise zu statischen Entladungen an den Schaltkreisen
kommen kann. Wenn dieses Symbol im Handbuch erscheint, sind
die entsprechenden Vorsichtsmaßnahmen zu treffen, um eine
Beschädigung der Schaltkreise so weit wie möglich zu vermeiden.
1-2
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S P E C I F I C A T I O N S
2
2.1 FUNCTIONAL
Operation
Command panel
Front mounted.
LED display.
Three push buttons.
Online/Offline, Data and error LED’s.
Command modes
Features
Bimodal Plotting mode.
Grayscale mode.
Printing mode.
Bimodal (black and white) plotting.
Grayscale plotting.
Plot speed up to 4.0 inches per second.
Microprocessor controlled.
Automatic head temperature feedback
Panel settings
~ On-line, off-line.
~ Test plot, test print.
* Contrast C1, C2, C3, C4, C5, C6, C7, C8.
* Plot speed select 1”, 2”, 3”, 4” per second.
* Media select LP, HP, LF, HF.
~ Scaling (positive and negative) S0, S1, S2,
S3, S4, S5, S6, S7, S8, S9, SA, SB, SC, SD, SE.
~ Vertical emulation.
P0, n0 for 200 dots per inch vertical
emulation. P3, n3 for 203 dots per inch
vertical emulation. P selects positive
scaling, n selects negative scaling.
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SPECIFICATIONS
~ Form feed adjust F2, F4, F8, tF, PF - selects
2
formfeed of 2, 4, 8 inches, Top of Form
sensing, and programable past top of form
respectively.
~ Bytes per scan b1, b2 - selects 216 and 264
bytes per scan respectively.
~ Grayscale levels per scan g1, g2, g3, g4 -
selects 8, 16, 32, and 64 levels of gray levels
per scan respectively.
# Grayscale media calibration table number
t1, t2.
Settings marked with (*) are used exclusively with bi-modal plotting.
Settings marked with (#) are used exclusively with grayscale plotting.
Settings marked with (~ ) are used with both bi-modal and grayscale
plotting.
Plot speeds
Paper 1.0, 2.0, 3 .0, and 4.0 inches per second
in bimodal (black and white) plotting mode.
Film: 1.0 inch per second.
Grayscale: dependent upon the number of levels
of grayscale selected.
Condition detection Media out.
Top of form.
Head temperature.
24 volt error detection.
2-2
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SPECIFICATIONS
2
Media
Types
Thermal sensitive paper or film.
Rolled paper with 7/16 inch spool core.
Rolled film.
Fan-folded paper (optional).
Width
8.75 inch rolled paper or film media.
8.75, 9.0 inch fan fold paper media.
Maximum length
Rolled media: 100 feet with thick paper, 150
feet with thin paper. Maximum diameter 2.5
inches. Fan-fold: unlimited maximum.
Fan-fold guides
Feeder trays
Optional, for fan-fold paper. Adjustable for
8.75 inch and 9.0 inch media.
Optional, for fan-fold paper.
Thermalprinthead
Type
Linear array.
Resolution
203 dots per inch (8 dots per milimeter).
1728 (metric) maximum.
216 bytes maximum.
8.5 inches.
Dots per scan
Bytes per scan
Image width
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SPECIFICATIONS
2
Transport
Stepper motor
Micro-step.
Stepping resolution 0.004 millimeter.
6400 micro-steps per inch of media.
32 micro-steps per scan line.
2.2 ELECTRICAL
Interface
Type
Parallel, 8 kB buffer
Compatibility
Versatec Greensheet
Centronics parallel (optional)
External SCSI
Data cable
Optional
Power consumption
Idle mode
Plot or print mode
110 Watt minimum.
315 Watt maximum
Power requirements
Voltage
Auto selectable input 100 Volts AC @ 60
Hertz Or 240 Volts AC @ 50 Hertz
Current
Fuse
3 Amps maximum @ 110 Volts
1.5 Amps nominal @ 220 Volts
250 Volts / 5 Amps
2-4
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SPECIFICATIONS
2.3 PHYSICAL
2
Dimensions
Rackmount
Desktop
Height
Width
Depth
3.5 inches
19 inches
12.5 inches
3.5 inches
15 inches
12.5 inches
Weight
Net
23 pounds
22 pounds
2.4 ENVIRONMENTAL
Temperature
Operating range
Storage range
Other
32º to 122º Fahrenheit (0º to 50º Celcius)
14º to 158º Fahrenheit (-10º to 70º Celcius)
Operating humidity 5% to 95 non-condensing
Certification
FCC Class “A” certified for electromagnetic
interference
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INSTALLATION
3
3.1 UNPACKING
Plotter
AC Power
Cord
Rail
Spacers
Manual &
Warranty Card
Thumb
Screw
Kit
Head Cleaning Pen
Spindle with Spacer disks
Although shipments are thoroughly checked for completeness by
The Imaging Systems Group Inc., confirm that your plotter has the
following:
1. Power cord
2. Sample Roll of paper
3. Two spindle hubs
4. Rackmount spacers
Confirm that any specified options are present, such as a data cable
or fan-fold guide.
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I N S T A L L A T I O N
3
Inspect the plotter and components for any damage that may have
occurred during shipment. Report any damage to the carrier of the
shipment, and to your Imaging Systems Group Inc. product
representitive.
Keep the box and packaging for future shipping, in the event of
servicing or upgrading issues. This product must be returned to
our factory in the original or proper packaging material. Damage
caused during return shipping or due to improper packaging will
not be covered by The Imaging Systems Group Inc. During shipping
or storage, place a length of thermal paper between the printhead
and roller. This prevents damage caused by the two components
sticking together.
3.2 MOUNTING AND POSITIONING
Keep the V8.5e away from direct heat sources, including sunlight.
Do not block the vents on the sides of the plotter.
CAUTION: Makesurethethumbscrewsaresecuredbeforeoperation.
Thisisparticularlyimportantinmobilesituations.Damagetotheplotter
orrackcomponentscouldresultiftheplotterbecomesunstable.
VORSICHT: VersichernSiesichvordemBetriebdesGerätes,dassdie
Flügelschraubenfestgestelltsind.Dasistbesondersinbeweglichen
Konstellationenwichtig.SolltederPlotterinstabilwerden,kanndies
zuSchädenamPlotteroderamGestellführen.
3-2
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I N S T A L L A T I O N
3
3.3 INTERFACESETUP
Plug the power cord into a grounded AC outlet only. Avoid sharing
an outlet that is also powering other noise-generating equipment.
The V8.5e comes equipped with a Versatec short line TTL (transistor
to transistor logic) interface. This interface can be used for data cable
lengths up to 50 feet.
An optional long line interface (differential) can be used for data
cable lengths up to 700 feet.
For optional Centronics interface setup, see Appendix C.
An external SCSI (Small Computer System Interface) is also available.
Please contact your Imaging Systems Group Inc. product
representitive for further information.
3.4 MEDIAINSTALLATION
CAUTION: Donotattempttoplotorformfeedwithouttheprint
mediuminstalled.Thismaydamagetheprintheadandwillvoidthe
warranty.
VORSICHT: VersuchenSiebittenicht, einenDruckvorgangoder
Papiervorschubzustarten,wennsichkeinDruckmediumimPlotter
befindet.DieskannzueinerBeschädigungdesDruckkopfesundzum
VerlustderGarantieführen.
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I N S T A L L A T I O N
3
Installing rolled paper
The V8.5e plotter comes with a sample roll of thermal sensitive paper.
To install rolled paper:
1. Loosen the rackmount thumbscrews and pull the plotter forward
on the rails.
2. Release the lid assembly by grasping underneath the black latch
bar and pulling it upwards (Figure 3-5). Open the plotter lid by
lifting the guide straight upwards.
3. Remove the fan-fold guide by grasping the two stainless steel
rails and lifting it straight upwards.
4. Place the spindle hubs onto each end of the roll of media with the
spacer on the left hand side spindle.
5. Orient the roll so that the paper feeds off of the top of the roll.
6. Place the roll in the plotter so that the pins on the spindle hubs
snap into the slots on the spindle blocks.
7. Guide the paper over the blue platen roller and under the black
cutter bar as shown in Figure 3-3.
8. Figure 3-4 shows roll paper installed. When installing any media,
ensure that the coated side of the media is on top.
3-4
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I N S T A L L A T I O N
3
Control Panel
Power
Latch
Figure 3-1
AC receptacle Screws
AC Power & Fuse
Back Panel Screws
Data port
Figure 3-2 Back Panel
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I N S T A L L A T I O N
3
Roll
Figure 3-3. Roll paper and film path
Figure 3-4 Roll paper installed
3-6
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I N S T A L L A T I O N
3
Figure 3-5 Opening the plotter Lid
Latch Bar
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I N S T A L L A T I O N
3
Installing fan-fold paper
1. Loosen the rackmount thumbscrews and pull the plotter forward
on the rails.
2. Release the lid assembly by grasping underneath the black latch
bar and pulling it upwards (Figure 3-5). Open the plotter lid by
lifting it straight upwards.
3. Remove paper roll and insert the fanfold guide over the spindle
blocks (see Figure 3-6).
4. Feed the paper through the slot in the back or bottom of the plotter
depending on which fan-fold paper tray is being used.
5. If using rear load fan-fold paper, feed the media under the rear
fan-fold guide bar and over the front fan-fold guide bar.
Figure 3-4. If using bottom loaded fan-fold paper, feed the media
over the rear fan-fold guide bar and over the front fan-fold guide
bar.
6. Guide the paper over the blue platen roller and under the black
cutter bar as shown in Figures 3-3 and 3-4.
7. When installing any media, ensure that the coated side of the
media is on top and the TOF mark is on the bottom right side.
Installing and using film
Note that the plotter operates at 1.0 inch per second when using
film. Install roll film as you would paper, ensuring that the coated
side is on top.
Note that the cutter bar is designed for paper media only. Use a
sharp knife or scissors to cut film media.
3-8
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I N S T A L L A T I O N
3
CAUTION: Beforeplottingortestingonanyprintmedia,makesure
thatthemediasettingiscorrect. Incorrectsettingsmayresultindamage
totheprintheadandwarranty. Themediamayalsobedamaged.
VORSICHT: BevorSiemitdemPlottenoderTestdruckenaufeinem
Druckmediumbeginnen,versichernSiesich,dassdieEinstellungen
fürdasDruckmediumkorrektsind.FalscheEinstellungenkönnenzu
einerBeschädigungdesDruckkopfesundzumVerlustderGarantie
führen.AußerdemkannhierdurchauchdasDruckmediumbeschädigt
werden.
Installing rolled film
1. Loosen the rackmount thumbscrews and pull the plotter forward
on the rails.
2. Release the lid assembly by grasping underneath the black latch
bar and pulling it upwards (Figure 3-5). Open the plotter lid by
lifting it straight upwards.
2. Remove the fan-fold guide by grasping the two stainless steel
rails and lifting it straight upwards.
3. Place the spindle hubs onto each end of the roll of film with the
spacer on the left hand side spindle.
4. Orient the roll so that the film feeds off of the top of the roll.
5. Place the roll in the plotter so that the pins on the spindle hubs
snap into the slots on the spindle blocks.
6. Guide the film over the blue platen roller and under the black
cutter bar as shown in Figure 3-3.
V8.5eRev2.2.2002
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I N S T A L L A T I O N
3
Figure 3-6 Spindle blocks
Spindle blocks (1 per side)
Figure 3- 7. Fanfold guide path
3-10
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O P E R A T I O N
4
4.1 POWER SUPPLY PRECAUTIONS
Turn off the power switch on the plotter before doing any of the
following:
1. Unplugging the plotter
2. Cleaning the printhead
CAUTION: Takecarenottodischargestaticintotheplotter.
Thismaycausedamagetotheintegratedcircuitsorother
electroniccomponents.Useanapprovedmethodof static
dissipationtoreventcomponentdamage.
VORSICHT: VermeidenSiestatischeEntladungamPlotter.Dieskönnte
zu Schäden an den integrierten Schaltkreisen und anderen
elektronischenBauteilenführen.VerwendenSieeinanerkanntes
VerfahrenzuAbleitungderstatischenEnergie,umGeräteschädenzu
vermeiden.
V8.5eRev2.2.2002
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O P E R A T I O N
4
4.2 USING THE CONTROL PANEL
To turn the plotter on, press the main power switch at the front of
the plotter. The LED display “moves in circular motion” during bootup,
followed by the ONLINE LED illuminating. When the ONLINE LED is
on, the plotter is ready to receive data from the host. Changes to the
plotter have to be made in offline mode.
Button 1
Button 2
Button 3
Figure 4-1. Control panel
The control panel is shown in Figure 4-1. It consists of an LED
display, two condition lights, and three buttons.
4-2
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O P E R A T I O N
4
Button
Function
Toggles between ONLINE and OFFLINE modes.
Changes to control panel settings can only be
made in OFFLINE mode. Selects function sub
menu's after menu access
1. UP ARROW.
Online/Offline
Works in OFFLINE mode only. Pressing and
releasing causes a form feed to the preset length.
Pressing and holding manually advances paper.
Selects function sub menu's after menu access.
2. DOWN ARROW.
Form Feed/Advance
Selects function menu in OFFLINE mode by
scrolling through the list. Scrolling is from first to
last only. Pressing and holding until display
flashes:
3. Menu/Save
saves menu settings.
Table4-1.Controlpanelbuttonfunctions
Table 4-1 shows the control panel button functions. The up and
down arrows access function sub-menu settings after the menu is
accessed using the menu button.
V8.5eRev2.2.2002
4-3
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Greyscale
media
table
tP Test
Plot
Vertical
Emulation
Bytesper
scan
Contrast
Speed
M edia
Scaling
FF Length
Press
UP
ARROW /
FORM
FEED
to access
SE
SD
SC
Sb
SA
S9
S8
S7
S6
S5
S4
S3
S2
S1
(Activate
Plottestby
pressing
MENU
C8
C7
C6
C5
C4
C3
C2
button)
g4
g3
g2
g1
b2
PF
tF
f8
f4
4
3
2
HF
LF
HP
n0
n3
P0
tP
t2
t1
Default
Value
Inactive
C1
1
LP
S0
P3
f2
b1
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O P E R A T I O N
4
4.3 CONTROL PANEL FUNCTIONS AND SETTINGS
See Table 4-2 for default settings and organization.
Changingfunctionsettings
For easy reference in this section, the buttons are referred to as
numbers 1, 2, and 3, from top to bottom. (See Table 4-1 for button
labels and functions.)
1. Press Button 1 to turn the plotter offline. Settings can only be
changed while the plotter is offline. The green ONLINE status light
turns off and the display will show: —— indicating offline status.
2. Press Button 3 to scroll through the menus.
3. For each menu item, press Button 1 or 2 (up or down arrows)
until the desired setting (or sub menu item) is shown in the display
for that menu.
4. Save the setting by pressing and holding Button 3
(MENU/SAVE) Display shows:
NOTE:PressandholdtheMENU/SAVEbuttonimmediatelyafterthe
desiredfunctionsettingisdisplayed.Advancingthroughthemenu
withoutdoingsowillnotsaveyourchanges.
5. The display will then show the offline display: ——. Repeat steps
2 through 4 for each function setting.
6. Press button 1 to return to ONLINE mode. Display will be blank
and online LED will be illuminated.
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O P E R A T I O N
4
DefaultSettings
To restore the default settings of the plotter, press and hold the
menu button (button 3) while powering the plotter on. The display
will briefly show “dF” during the boot up sequence, indicating that
the default menu items have been loaded.
Testplot
This function produces approximately six inches of plot in a
checkerboard and dither pattern in Bimodal mode. Generating a
test plot while the plotter is set to grayscale mode will result in a
grayscale plot corresponding to the number of gray levels selected
at the time. This enables the user to verify that the plotter is creating
a plot image, feeding the paper correctly, and that contrast levels
and media settings are acceptable. The test plot will use the current
menu settings to generate the image.
1. Press Button 1 to put the plotter into OFFLINE mode.
2. Press Button 3 once. “tP” is displayed.
3. Press and hold Button 3 until the display flashes:
The test plot will be generated.
Contrast
The contrast function adjusts the density of the output. Settings
range from C 1to C 8. Settings are relative values: C 1is the lightest,
C 4is normal, C 8the darkest.
After performing a test plot or plot job, determine if the contrast is
acceptable. If the output is extremely dark, very faint, or irregular,
first check that the media setting is correct (see “Media” section of
this chapter).
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O P E R A T I O N
4
If the contrast needs further adjusting, change the contrast setting
by starting at the lowest value, adjust the contrast upwards one
value at a time, testing after each adjustment. This is particularly
important when using lightweight papers or papers with unknown
specifications.
CAUTION: Thermalplottingtechnologyinvolveshightemperatures.
Incorrectmediaorcontrastsettingscandamagetheprintheador
othercomponentsandvoidthewarranty. Mediadamagecanalso
occur.
VORSICHT: BeiderthermischenPlottertechnologieentstehenhohe
Temperaturen. Ungeeignete Medien oder falsche
KontrasteinstellungenkönnendenDruckkopfoderandereBauteile
beschädigenundzuVerlustderGarantieführen. Auchkönnen
BeschädigungenandenMedienentstehen.
Speed
The speed function adjusts the speed of the plot output. There are
four output plot speed settings in the V8.5e: 1.0, 2.0, 3.0, and 4.0
inches per second. The default setting is 1.0inch per second which
produces the highest quality output.
If the plot speed is erratic, or if output quality is unacceptable,
lowering the plot speed will result in an improved plot quality. Such
problems may arise when data enters the plotter at a slower rate
than the plot speed setting. Lowering the output plotting speed
enables the plotter to match a lower input data rate and produces a
smoother output plot.
When the media setting is film (LF or HF), the plotter speed defaults
to 1 inch per second. When Grayscale mode is enabled, plot speed
is dependent upon the level of grayscale selected.
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O P E R A T I O N
4
Media
The media function adjusts the time that the printhead is turned on
(strobe time) to create an image on the media based upon the media
type selected. The default setting is light paper. When the plotter
is set to film or grayscale mode the printhead’s requirement for
strobe times is raised. This requires a slower plot speed in order to
maintain the high quality level of the V8.5e.
Note: there are two preprogrammed media tables for grayscale
plotting. These calibration tables can be changed for different medias
by uploading new tables which can be provided by The Imaging
Systems Group Inc. for virtually any approved thermal media. These
tables are custom tuned to provide maximum grayscale performance
on a selected media. These tables can be uploaded to the V8.5e,
where they are stored in non-volitile memory until overwritten.
Tables are uploaded two at a time overwriting the factory default
tables stored in T1and T2.
CAUTION: Thermalplottingtechnologyinvolveshightemperatures.
Incorrectmediaorcontrastsettingscandamagetheprintheador
othercomponentsandvoidthewarranty. Mediadamagecanalso
occur.
VORSICHT: BeiderthermischenPlottertechnologieentstehenhohe
Temperaturen. Ungeeignete Medien oder falsche
KontrasteinstellungenkönnendenDruckkopfoderandereBauteile
beschädigenundzuVerlustderGarantieführen. Auchkönnen
BeschädigungenandenMedienentstehen.
4-8
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O P E R A T I O N
4
Scaling
The scaling function stretches or shrinks the plot over a 36-inch
length of plot with settings being S0 through SE. The default
setting is (S2). To determine if scaling is needed, plot a job of a
known length and measure it. Adjustments can be made to the
scaling in increments of + or - 1/16-inch over 36 inches of plot. S0
= no scale,
SE= + /- 14/16” over 36 inches of plot.
Note: PositiveornegativescalingisselectedthroughtheEmulation
menusetting.
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O P E R A T I O N
4
Emulation(verticalresolution)
The emulation function adjusts the vertical resolution of the plot
(along the media length). The settings are P0, n0, P3, and n3. P0
and n0 are used with 200 scans/inch of plot data. The default
setting (P3) is 203 scans per inch (equal to 203 dots per inch- dpi).
P3and n3are used for 203 scans/inch of plot data. Pand nstand
for Positive and negative scaling for the scaling menu. If nis selected,
the scaling factors are from no scale to -14/16” over 36” of output
plot. If Pis selected, the scaling factors are from no scale to + 14/
16” over 36” of plot.
Note that the horizontal resolution is determined by the printhead
dot density, which is 203 dpi. The plotter can emulate 200 dpi
vertical resolution (E0 and n0 settings), to match the rastered host
data (for Imperial units).
Form feedlength
The form feed length function adjusts the distance that the media is
advanced in off-line mode and when a remote function is sent. To
form feed media, put the plotter in offline mode and press the
FORMFEED/ADVANCE button without holding.
Menusettingsare:F2,F4,F8,tF,PF.
F2, F4, F8cause 2”, 4”, or 8” of media to be advanced upon a
formfeed. If a TOF mark is detected before the formfeed is completed
the plotter will stop upon detecting the mark, or to what the PF
setting is.
tFresults in the plotter advancing up to 18” while detecting for the
Top of Form mark on fan fold media. The top-of-form setting (tF)
allows the plotter to detect top-of-form marks. These marks signal
the plotter to stop the form feed at a consistent distance from the
perforated edge of the paper.
4-10
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O P E R A T I O N
4
PF- Programmable advance past Top of Form- This feature allows
the V8.5e to line up with the beginning of pages when a media
whose TOF marks do not meet the V8.5e specifications.
NOTE: iSysrecommendsonlytheuseofapprovedmediaintheV8.5e
whichhasbeenqualifiedtoincreaseplotterlifeandproducehigher
qualityplots.
Once the PFfeature is selected in the menu, the V8.5e will detect
the media TOF mark and continue to advance the media by the
amount programmed when a formfeed or end of transmission is
commanded.
This feature is enabled by setting the formfeed menu to “PF”
The advance range is from
01 hex --- 10 scans (approx 0.05”)
to
ff hex --- 2550 scans (approx 12.5”)
in increments of 10 scans for each hex number.
Once the menu has been set to “PF”, the amount of advance past
TOF which has been programmed into the V8.5e will be used until
it is changed. The default value is 23 Hex.
To program the amount of advance past TOF, send header:
98 XY 0A (where XY is the hex# of groups of 10 scans).
If the V8.5e accepts the setup string, the display will flash
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O P E R A T I O N
4
Bytesperscan
The SCANWDTH function adjusts the scan width of the plot, defined
in bytes per line. The default scan width is b1(216 bytes per scan).
Menu settings are: b1, b2, g1, g2, g3, andg4.
b1 — 216 bytes/scan (bimodal).
b2 — 264 bytes/scan (bimodal).
g1 —8 gray levels per scan, 1728 bytes/scan maximum.
g2 —16 gray levels per scan, 1728 bytes/scan maximum.
g3 —32 gray levels per scan, 1728 bytes/scan maximum.
g4 —64 gray levels per scan, 1728 bytes/scan maximum.
Unless you are using RLTER (remote line terminate) commands, the
plotter scan width must be set to the same byte count as the rastered
data from the host. Setting the scan width higher than the byte
count of the raster data does not create a wider plot. Setting the
scan width incorrectly results in skewed output as the data “wraps”
and finishes the scan on the next line. This condition is identifiable
on the plot in Figure 7-8.
The V8.5e contains a new method of plotting raster data. Each
scan of data plotted can contain as many as 64 independent
intensity levels (gray scales). The thermal print head (TPH) in the
V8.5e is made up of 1728 thermal heater nibs, and each one of
these nibs can be heated to a different energy level, producing a
dot on the thermal media of varying intensity. This type of plot-
ting can produce high-resolution images containing many shades
of gray.
Change the scan width settings by pressing the up or down arrows
in the bytes/scan sub-menu.
Press and hold Button 3 until the display flashes:
4-12
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O P E R A T I O N
4
Grayscalemediatablenumber
t1 - media calibration table for media 1.
t2 - media calibration table for media 2.
These tables have preset values for imaging on two different medias
while in grayscale mode. These medias can be changed for different
medias by uploading new tables.
SetupheadersforprogrammingtheV8.5e
NOTE:
The V8.5E must be in PRINT mode for the setup
header string to work. Numeric values shown below
are hexadecimal, not ASCII.
NOTE:
All menu functions can be remotely configured by
sending a setup header string from the host to the
V8.5E through the interface. The programmable
advance past TOF can be programmed in a similar
fashion.
NOTE:
Sending a 00 hex in any of the setup string positions
listed below allows the menu item to remain
unchanged.
The format is as follows:
Byte 1:
Byte 2:
escape code = 99
contrast
C1= 11
C2= 12
C3= 13
C4= 14
C5= 15
C6= 16
C7= 17
C8= 18
Lightest
Darkest
No Change= 00
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O P E R A T I O N
4
Byte 3:
Byte 4:
Byte 5:
speed
1”= 21 1.0 inches/sec
2”= 22 2.0 inches/sec
3”= 23 3.0 inches/sec
4”= 24 4.0 inches/sec
No Change= 00
media
LP= 31 Light Paper
HP= 32 Heavy Paper
LF= 33 Light Film
HF= 34 Heavy Film
No Change= 00
scaling
S0= 41 No Scale
S1= 42
S2= 43
S3= 44
S4= 45
S5= 46
S6= 47 + /- 1/16”
S7= 48 increments over 36” of
S8= 49 plot up to + /- 14/16”
S9= 4A
SA= 4B
Sb= 4C
SC= 4D
Sd= 4E
SE= 4F
No Change= 00
4-14
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O P E R A T I O N
4
Byte 6:
scaling
emulation
P0= 51 200 scans/inch vertical
with positive
n0= 52 200 scans/inch vertical
with negative
scaling
scaling
scaling
Byte 7:
P3= 53 203 scans/inch vertical
with positive
n3= 54 203 scans/inch vertical
with negative
No Change= 00
formfeed
F2= 61
F4= 62
F8= 63
tF= 64 Stops on TOF Mark
PF= 65 Programmable
advance past TOF
mark
No Change= 00
Byte 8:
bytes/scan
b1= 71 (216 bytes/scan)
b2= 72 (264 bytes/scan)
g1= 73 8 level grayscale
g2= 74 16 level grayscale
g3= 75 32 level grayscale
g4= 76 64 level grayscale
No Change= 00
Byte 9:
grayscale
media table
t1= 81 (media type 1)
t2= 82 (media type 2)
No Change= 00
V8.5eRev2.2.2002
4-15
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O P E R A T I O N
4
Byte 10:
line feed
0A
Example: To set the plotter to:
contrast= C3
speed= 1.0 ips
media= LP
scaling= S2
emulation= P3
formfeed= F2
bytes/scan= b1
grayscale media table= t1
Then send header: 99 13 21 31 43 53 61 71 81 0A
If the V8.5E accepts the setup string, the display will flash
If there are any errors in the string, such as an out of range value on
one of the numbers, or any other errors in the string format, the
plotter will not accept the string, no reconfiguration will take place,
and the error LED will flash twice.
4.4 ERROR MESSAGES
1.MediaOutError: Theplotterwilldisplayasmallsquare,flashing
segmentsandtheerrorLEDwillflash.Tofixthiserror,reloadmedia
intothepotter.Plottermustbeputbackonlinetocontinueplotting.
2.HotHeadError: TheplotterwilldisplayHtandtheerrorLEDwill
flash.Theplotterwilldisplaythiserroruntilthethermalprinthead
coolstoatemperaturethatissafetoplotagain.
3.24VoltsError: Theplotterwilldisplay24andtheerrorLEDwill
flash.Ifthiserroroccurs,the24voltpowersupplymaybefaulty.Please
contactyourproductrepresentative.
4.ThermistorError: TheplotterwilldisplaytHandtheerrorLEDwill
flash.Iftheerroroccurs,thethermalprintheadmaybefaulty.Please
contactyourproductrepresentative.
4-16
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O P E R A T I O N
4
4.4 FEHLERMELDUNGEN
1.Medienleer: AmPlottererscheinteinekleinequadratische
blinkendeAnzeigeunddieFehleranzeigeblinkt.ZurBehebungdieses
FehlermussneuesAufzeichnungsmaterialgeladenwerden. Der
Plottermusserneutonlinegeschaltetwerden,umdenPlotting-
Vorgangfortzuführen.
2. Druckkopfüberhitzung: Am Plotter erscheint Ht und die
Fehleranzeigeblinkt.DieAnzeigebleibtsolangebestehen,bisder
DruckkopfaufeineTemperaturabgekühltist,beiderwiedergefahrlos
geplottetwerdenkann.
3.24VoltFehler: AmPlottererscheint24unddieFehleranzeige
blinkt.WenndieserFehlerauftrittistmöglicherweisedie24-V-
Spannungsversorgungdefekt.IndiesemFallnehmenSiemitihrem
zuständigenVertragspartnerKontaktauf.
4.ThermistorFehler: AmPlottererscheinttHunddieFehleranzeige
blinkt.IndiesemFallistmöglicherweisederthermischeDruckkopf
defekt.NehmenSiebittemitihremzuständigenVertragspartner
Kontaktauf.
V8.5eRev2.2.2002
4-17
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THEORY OF OPERATION
5
5.1 INTRODUCTION
The V8.5e plotter uses thermal technology to convert data from the
host computer into plotted output. Host data enters the plotter main
logic circuitry via the data port, and passes through the interface to
the data buffer on the main logic board. Control and status signals
enter the main logic board at the same time as the parallel data. The
microcontroller converts the data from parallel to serial and sends
the serial data to the printhead. One horizontal line or scan, consisting
of a single row of dots, is plotted. The stepper motor advances the
paper for the next scan. This cycle repeats until the plotted or printed
image is finished.
5.2 PLOTTER FUNCTIONS AND FEATURES
Powersupplies
The logic circuitry and printhead of the plotter are powered by a 5
Volt DC output power supply. The thermal printhead and stepper
motor are powered by a 24 Volt, 10 Amp DC power supply. Both
power supplies feature an auto-switchable input, which adapts to
different voltage or frequency inputs.
V8.5eRev2.2.2002
5-1
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24VC
Power
Supply
Input
Non-
volitile
RAM
Data
Buffer
Data Input
Interface
8-bit Parallel Data
Motor
REM
REM
5VDC
Power
Supply
REM
Micro controller
Decoder
REM
Temperature Feedback
REM
Thermal
Printhead
MODE
Parallel
to serial
Character generator
ROM (print mode)
Sensor Pod
Figure5-1.Functionalblockdiagram
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T H E O R Y O F O P E R A T I O N
5
Steppermotor
The V8.5e uses a bipolar, two-phase stepper motor. The motor is
micro-step driven, requiring 200 full steps for one rotation of the
motor shaft. There are 32 micro-steps per full step. Thus the motor
makes 6400 micro-steps for each rotation.
5.3 INTERFACE
The data interface may be short line or, optionally, long line (see
“Interface setup” in Chapter 3, Installation for details.) The plotter
is compatible with either the Versatec Greensheet or (optionally)
the Centronics interface (see Appendix A). Table 5-1 shows the active
level for the plotter status signals.
Signal Signal
Mnemonic Name
Active
Level
Operation
Low level indicates the plotter
is powered on and online
ONLIN
NOPAP
Online
Low
Idicates there is no paper in
the plotter, or the lid is not
properly closed and latched.
No paper High
Table5-1StatusSignals
Interfacetimingandsignals
The ready signal indicates the plotter’s readiness to accept data.
When READY is low, the plotter can accept one byte of data. This
byte must be accompanied by a PICLK (data strobe) pulse.
Table 5-2 shows the timing relationship for maximum data transfer.
V8.5eRev2.2.2002
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T H E O R Y O F O P E R A T I O N
5
Signal
Nhemmon-
ic
Signal
Name
Active
Level
Operation
Input lines for byte parallel
data Must be accompanied
by a PICLK
IND1 -
IND8
Input data
High
High
Stobes a data byte present
on IND1-IND8 into the
input bufffer. Minimum
300nS pulse
Parallel input
clock
PICLK
Low level means plotter is
ready to receive next data
byte or remote function.
High level indicates plotter
is busy and will not accept
data or remote functions.
READY
Plotter ready
Low
Table5-2DataTransfer
Note that the plotter goes busy after receiving each byte. The plotter
goes busy for longer periods during the execution of remote
functions, when the input buffer is full, or when an error occurs.
Table 5-3 shows the timing relationships for the remote functions.
When the input buffer receives the number of bytes necessary to
plot a full scan, a write cycle is automatically initiated, causing the
buffer contents to be imaged on the medium.
5-4
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T H E O R Y O F O P E R A T I O N
5
Signal
Mnemonic
Signal
Level
Signal Name
Operation
CLEAR
RESET
Remote clear Low
Remote Reset Low
Clears the input buffer.
Resets the plotter and re-initializes
all logic while the signal is asserted.
Ready remains high while reset is
asserted.
Terminates the buffer data currently
being loaded, causes all previously
loaded data to be output in sequence,
then outputs the buffer data just
terminated in sequence. This
Remote line
Low
RLTER
terminate
command is ignored if received
immediatley after a full scan has
been automatically terminated.
Remote form
Low
RFFED
REOTR
feed
Terminates the buffer data currently
being loaded, causes all previously
loaded buffer data to be output in
sequence, then outputs the buffer
data just terminated in sequence.
Paper is then advanced.
Remote end
of
Low
transmission
Table5-3.Remotefunctionsignals
V8.5eRev2.2.2002
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T H E O R Y O F O P E R A T I O N
5
Datarates
The plotter accommodates a wide range of data rates. The speed of
the plotter can be set to 1.0, 2.0, 3.0, 4.0 inches per second. To
achieve a consistent plot rate at a certain speed setting requires
minimum data rates. If data rates are inconsistent, and lower than
these minimum rates, that plot speed will not be sustained. Table
5-4 shows the minimum data rates at the four speed settings.
Speed of plot
1.0 inch per second
2.0 inches per second
3.0 inches per second
4.0 inches per second
Minimum data rate
44 KB/sec
88 KB/sec
132 KB/sec
176 KB/sec
Table5-4.Minimumdatarates
As with all thermal plotters, slower speeds produce the highest
quality output. Plotting at a speed too high for the data may result
in the deterioration of fine details. Stops and starts caused by
inconsistent data rates may also result in a lower quality output.
5-6
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T H E O R Y O F O P E R A T I O N
5
Scanwidth
Scan width settings sent from host software can specify the number
of bytes of data that will be plotted on a line. The maximum setting
that data can be rastered to is 264 bytes per scan.
NOTE: Thethermalheadholdsamaximumof216bytesofdata. When
theplotterissetto264bytesperscan,thefirst216bytesofdatafrom
thehostareloadedintothethermalheadtobeplottedandthelast48
arediscarded.
For rastered data less than the current byte count setting on the
plotter, the scan may be terminated at any byte count by a RLTER
command. If a RLTER command is asserted, the scan is terminated
and the plot continues on the next line.
Verticalresolution
The vertical resolution of the plot can be changed from the default
value of 203 dpi (n3or P3) to 200 dpi (n0 or P0, also known as
Imperial unit setting). See “Emulation”, in Chapter 4, Operation, for
information on control panel settings.
The plotter emulates the 200 dpi resolution by stretching the plot
length. This is accomplished by inserting micro-steps at regular
intervals, so that 200 scans cover one inch of plot.
Scaling
The scaling function either stretches or shrinks the plot by removing
or adding a micro-step at a set interval. Adjustments can be made to
the scaling in increments of + /- 1/16” over 36” of plot length. The
interval is determined by the scaling setting on the control panel.
See “Scaling” in Operation, Chapter 4, Page 4-9, for information on
control panel settings.
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T H E O R Y O F O P E R A T I O N
5
Printmode
When the host asserts the PRINT mode signal, the plotter can
generate ASCII characters. Table 5-5 shows the timing relationships
for print mode signals.
Signal
Mnemonic
Active
Level
Signal Name
Operation
Selects either print or plot
mode. When signal is high,
plotter is in print mode.
PRINT
Print Mode
High
Simultaneous
print/plot mode
SPP
Low
Not used
Table5-5.Modesignals
ASCII characters are produced as plot patterns on a 16 x 20 dot
matrix through the use of a Character Generator ROM. When one
complete print line of ASCII-coded data is received, the data is
converted into plot patterns. Each character line is executed over
20 plot scans.
5-8
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T H E O R Y O F O P E R A T I O N
5
5.4 THERMAL PRINTHEAD
The thermal printhead is comprised of a row of 1728 heater elements
(nibs). Each bit within a scan addresses an individual nib. Plot patterns
are generated one scan at a time, each scan consisting of a horizontal
row of dots. A nib produces a dot if the corresponding scan bit in
the buffer is a logic level “1”. Nibs in the printhead are heated, causing
a thermo-chemical reaction with the coating on the media. The
intensity or period for which the nib is heated is called the burn
strobe.
AutomaticHeadTemperatureFeedback
The thermal printhead rises in temperature as it plots images on
paper, thus, less energy is required to activate each nib as the plot
proceeds to create an image of the same intensity. A thermistor
embedded in the head measures the head temperature and provides
feedback information to the main logic board. The main logic board
decreases the burn strobe accordingly to keep the contrast of the
plotted image consistent as the plot proceeds.
If the printhead temperature reaches 60º C, the Automatic Head
Temperature Feedback circuit stops the plotter in order to let the
head cool down. The control panel display reads hot (Ht)and the
error light flashes. When the thermistor measures that the printhead
temperature has cooled to 45º C, the plot resumes with no loss of
data.
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T H E O R Y O F O P E R A T I O N
5
Filmmedia
When the plotter is set to film mode, the strobe length is increased
to accommodate the thicker media. The plot speed is set to
1.0 inch per second to allow the longer strobe length and to maintain
plot quality.
5.5 MEDIA SENSORS
The top-of-form (also known as the “I-mark”) sensor and the media
sensor are contained on a media sensor board .
The top-of-form sensor consists of a focused infrared beam and
receptor that reacts to black top-of-form marks. The receptor sends
a “stop form feed” command to the logic circuitry if a mark stops
the beam from reflecting back into the receptor.
The paper sensor consists of an unfocused infrared beam and
receptor. If the receptor receives enough reflected light, the receptor
sends no command. If the reflected light is below the required level
the receptor sends a “media out” command to the logic circuitry
and plotting stops. The “no media” indicator is displayed on the
control panel.
5-10
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MAINTENANCE
6
NOTE: Donotattempttorepairormodifyanycomponentofthe
V8.5e.Ifacomponentfails,itmaybereplacedfreeofchargeinaccord-
ancewiththewarrantyproceduresinthismanual. Attemptingunau-
thorizedrepairsormodificationswillvoidthewarrantyandinvalidate
safetyapprovals.
WICHTIGERHINWEIS: VersuchenSienicht,irgendwelcheBauteile
desV8.5ezureparierenoderzumodifizieren.FallseinBauteilversagt,
kann es gemäß den in diesem Handbuch enthaltenen
Garantiebedingungen kostenfrei ersetzt werden. Bei nicht
genehmigten Reparaturen oder Modifizierungen erlischt der
GarantieanspruchundSicherheitszertifikatewerdenungültig.
WARNING: Therearevoltagehazardsinherentintheprintheadpower
supplyandACinputwiring. Takereasonableprecautionstoavoid
electricalshock. NeverserviceanyelectricalcomponentoftheV8.5e
whilethepowercordisconnected. Severeelectricalshockmayresult.
WARNUNG: AmDruckkopfundamWechselstromanschlussbestehen
gefährlicheSpannungen.LassenSieangemesseneVorsichtwalten,um
Stromschlägezuvermeiden.ZiehenSiedenNetzstecker,bevorSiean
irgendwelchenelektrischenBauteilendesV8.5earbeiten.Andernfalls
kanneszuerheblichenStromschlägenkommen.
CAUTION: Takecarenottodischargestaticintotheplotter. Thismay
causedamagetointegratedcircuitsorotherelectroniccomponents.
Dissipatestaticbywearingastaticdisipatingwriststrap,beforeusing
toolsontheplotterortouchinginternalcomponents.
VORSICHT: VermeidenSiestatischeEntladungamPlotter.Dieskann
SchädenandenintegriertenSchaltkreisenundanderenelektronischen
Bauteilenverursachen.LeitenSiestatischeElektrizitätab,indemSie
einAntistatik-Armbandanlegen,bevorSieamPlottermitWerkzeugen
hantierenoderinterneBauteileberühren.
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M A I N T E N A N C E
Thissymbolindicatesanareaofpossibleconcerndue
6
tostaticdischargeintothecircuitry. Whenyouseethis
symbolinthemanual,pleaseobserveproperstaticpre-
cautionstominimizedamagetothecircuitry.
DiesesSymbolwarntdavor,dassesindiesenBereichenmöglicherweise
zustatischenEntladungenandenSchaltkreisenkommenkann.Wenn
diesesSymbolimHandbucherscheint, sinddieentsprechenden
Vorsichtsmaßnahmen zu treffen, um eine Beschädigung der
Schaltkreisesoweitwiemöglichzuvermeiden.
6.1 MAINTENANCE GUIDELINES
In order to minimize the complexity of troubleshooting and repairs,
the V8.5e plotter is composed, wherever possible, of field-
replaceable units (FRUs). The Imaging Systems Group Inc. does not
recommend troubleshooting at a component level, but rather to the
level of these FRUs. This chapter and the troubleshooting chapter
of this manual follows this approach, resulting in faster and easier
repairs. Replacing or repairing FRUs, rather than smaller components,
minimizes downtime and simplifies procedures.
UsecautionwhiletroubleshootingtheV8.5e.Turnthepoweroffand
unplugthepowercordtopreventelectricalshock.
SeienSiebeiderFehlerbehebungamV8.5evorsichtig.SchaltenSie
denStromabundziehenSiedenNetzstecker,umStromschlägezu
vermeiden.
6 -2
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M A I N T E N A N C E
6
6.2 REGULAR MAINTENANCE
The V8.5e thermal plotter is engineered to require minimal
preventative maintenance. If the thermal printhead and platen roller
are cleaned regularly, and the plotter is kept free of debris, extra
maintenance should rarely be required.
This minimal preventative maintenance is the customers
responsibility. Damage to the plotter that has in The Imaging System
Group’s opinion resulted from neglect or misuse will not be covered
under warranty.
CAUTION: NopartsoftheV8.5erequirelubrication.Allbearingsare
sealedandself-lubricating.Thesebearingsmustbereplacedinpairsif
onefailsbyauthorizedrepairdepot.
VORSICHT: KeinTeildesV8.5eerfordertSchmierung.AlleKugellager
sindgeschlossenundselbstschmierend. DieseLagerdürfennur
paarweisedurcheineautorisierteServicewerkstattausgetauscht
werden,fallseinesdefektwird.
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M A I N T E N A N C E
6
Cleaningthethermalprinthead
After prolonged use, the thermal printhead picks up fibres from the
media passing under it. These fine fibres collect and compact on
portions of the printhead, blocking the contact it makes with the
paper during a plot and causing faded patches. Poor contact between
the printhead and paper may also cause the affected heating
elements (nibs) to fail prematurely because of improper heat
dissipation to the paper.
Clean the printhead every time you install a new roll of paper or
film.
1. Turn the plotter power off.
Figure6-1
Print Head
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M A I N T E N A N C E
6
2. Moisten (do not soak) a soft, lint-free cloth or cotton swab with
99% pure isopropyl alcohol. Rub gently along the length of the
printhead, removing any buildup of residue on the printhead.
3. Allow the alcohol to evaporate completely before using the plotter.
CAUTION: Donottouchtheprintheadwithyourfingersorotherob-
jects.Skin oilwillcontaminatetheprinthead,whichdiminishesplot
qualityandshortensthe lifespanoftheprinthead.
VORSICHT: DenDruckkopfnichtmitdenFingernoderirgendwelchen
Gegenständenberühren.FettoderÖlverschmutztdenDruckkopf,
wodurchdieDruckqualitätvermindertunddieLebensdauerdes
Druckkopfesverkürztwird.
Cleaningtheplatenroller
After prolonged use, the platen roller picks up fibres from the paper
passing above it. These fine fibres collect and compact on portions
of the platen roller, creating bumps. The uneven surface of the roller
may cause the printhead to contact the passing paper unevenly,
producing a blotchy or faded plot.
Clean the platen roller when it appears dirty, or after approximately
three rolls of paper or film have been plotted.
Lightly wipe the roller with a soft, lint-free cloth moistened in 99%
pure isopropyl alcohol, turning the roller as necessary to remove
paper fragments and dust.
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M A I N T E N A N C E
6
Replacingthefuse
The fuse is located in a clip next to the AC receptacle. Figure 3-2.
1. Unplug the power cable from the AC receptacle.
2. Insert a small screwdriver into the slot on the fuse clip to release
it from the AC receptacle.
3. Remove the fuse from the clip. Replace the fuse and insert the clip.
WARNING: Replaceonlywithafuseofidenticalspecifications.Other
fusesmaycauseafirehazard.SeeChapter2,Specifications,forfuse
specifications.
WARNUNG: Beim Auswechseln der Sicherungen nur solche mit
gleicherSpezifikationverwenden.AndereSicherungenkönnenBrände
verursachen.SieheKapitel2,Spezifikationen,hinsichtlichder
SpezifikationderSicherungen.
WARNING: ConsistentdamagetotheplotterACfuseindicatesaseri-
ousproblemandshouldberepairedimmediately.Contactyourau-
thorizedservicecenter.
WARNUNG: AndauernderAusfallderWechselstromsicherungdesPlot-
tersverweistaufeinernstesProblem,dassofortbehobenwerdensollte.
NehmenSieKontaktmitihrerautorisiertenServicewerkstattauf.
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TROUBLESHOOTING
7
7.1 INTRODUCTION
This chapter provides a list of problems that may be encountered
with the V8.5e, and gives possible causes and solutions for these
problems.
To use this chapter, locate the problem from the list. Follow the steps
in order, referring to Chapter 6, Maintenance, where necessary.
V8.5eRev2.2.2002
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T R O U B L E S H O O T I N G
7.2 PROBLEMS
7
Plotterdoesnotplot
Possible causes:
Solutions:
Plotter has no paper or film
Lid is not securely closed
Thermal printhead is overheated
Latch pins need adjustment
1. Check the media supply. Install more media if necessary as
described in Chapter 3, Installation.
2. Check that the media is installed correctly and the plotter lid is
securely closed. The top of the lid should be flush with the top of
the side panels.
3. If plotting has stopped in mid-task, the printhead may be
overheated.
Do not intervene. The plotter will resume plotting from where it left
off with no loss of data when the printhead has cooled sufficiently.
When the printhead temperature reaches 60º C, the plotter stops
and asserts a “busy” signal to the host. Plotting resumes when the
head temperature has cooled to 45º C. This prevents printhead
damage caused by overheating.
4. If the lid does not close securely, or if the head pressure is too
low, contact your authorized service center.
7-2
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T R O U B L E S H O O T I N G
7
Plothasverticalwhitestripes
Figure7-3.Plotwithverticalwhitestripes
Possible causes:
Lid is not securely closed
The printhead is dirty
Some printhead nibs are burnt out
Solutions:
1. Check that the media is installed correctly and the plotter lid is
securely closed. The top of the lid should be flush with the top of
the side panels.
2. Clean the printhead as described in Chapter 6, page 6-3.
3. The thermal printhead has one or more burnt out nibs so it must
be replaced. Contact your authorized service center.
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T R O U B L E S H O O T I N G
7
Plotisblotchyorfaded
Figure 7-4 . Blotchy or faded plot
This problem originates from inconsistent printhead pressure across
the platen roller during plotting.
Possible causes:
Solutions:
Lid is not securely closed
Latch pins need adjustment
1. Check that the media is installed correctly and the plotter lid is
securely closed. The top of the lid should be flush with the top of
the side panels.
2. If the plot is fading on one side, test by pressing down on that
side of the lid while the plotter is plotting. If this helps, the latch pin
needs to be adjusted on that side. Contact your authorized service
center.
7-4
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T R O U B L E S H O O T I N G
7
Plotcontrastisweak
Possible causes:
Lid is not securely closed
Latch pins need adjustment
Media setting is incorrect
Contrast setting is too low
24 V power supply is malfunctioning
Solutions:
1. Check that the media is installed correctly and the plotter lid is
securely closed. The top of the lid should be flush with the top of
the side panels.
2. If the lid does not close securely, or if the head pressure is too
low, contact your authorized service center.
3. Check that the media setting is correct. See Chapter 4, page 4-8.
4. Adjust the contrast setting as described in Chapter 4, page 4-6.
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T R O U B L E S H O O T I N G
7
Plothasblackverticallines
Figure7-6.Plotwithblackverticallines
Possible Cause:
One or more bits in each byte going to the
plotter are “stuck high”.
Solution:
1. If your plotted output from the host shows these lines, run a test
plot. If the lines are not present on the test plot, the problem
originates with the host data. Check the interface data cable from
the host and replace it if neccesary.
7-6
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T R O U B L E S H O O T I N G
7
Plotiswronglength
If you suspect that a plot is the wrong length, plot a job of a known
length and measure it.
Possible causes:
Solutions:
Paper is not moving freely
Scaling is incorrectly applied
Vertical emulation is incorrectly applied
1. Check the media feed path. Ensure that the paper is installed
correctly and that the paper feed is not obstructed.
2. Adjust or reset the scaling setting as described in Chapter 4,
Operation.
3. Determine if your data requires vertical emulation and adjust the
vertical resolution setting appropriately. See “Emulation” in
Chapter 4, Page 4-10.
Paperiswrinklingortearingalongoneedge
Possible causes:
Paper feed is misaligned
Paper is incorrectly installed
Lid is not securely closed
Latch pins need adjustment
Solutions:
1. Ensure that paper is correctly aligned while feeding. If using fan-
fold paper, you may wish to leave the paper in the box.
2. Check that the paper is installed correctly (see “Media Installation”
in Chapter 3, Installation) and the plotter lid is securely closed. The
top of the lid should be flush with the top of the side panels.
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T R O U B L E S H O O T I N G
7
3. If the lid does not close securely, or if the head pressure is too
low, contact your authorized service center.
Plotterhasnopower
Possible Cause:
If the plotter is plugged in to a functioning
outlet, then the AC fuse has blown.
Solution:
1. Replace the fuse as described in Chapter 6.
Plotterdisplayisfunctioningbutmotordoesnotfunction
Possible Cause:
Either the 5 V or 24 V power supply is
malfunctioning.
Solution:
1. Contact your authorized service center.
Can’tmakechangestocontrolpanelsettings
Possible Cause:
Plotter is in ONLINE mode.
Solution:
1. Press the ON/OFFLINE button.
7-8
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T R O U B L E S H O O T I N G
7
Plotoutputspeediserratic
Possible Cause:
Plotter speed is set too high. This is most likely
to occur on the HIGH setting. Lowering the
plot speed enables the plotter to match the
rate of data and produces a more steady
output.
Solution:
1. Lower the plot speed setting on the control panel as described in
Chapter 4, Page 4-7.
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T R O U B L E S H O O T I N G
7
Burning smellduringplot,or“blooming”presentonoutput
Figure7-7.“Blooming”plot
Possible Cause:Media setting is incorrect. The thermal
printhead operating temperature is too high
and is burning the media.
Solution:
1. Change the media setting on the control panel as described in
Chapter 4. If unsure of the media specifications, start at the LT PAPER
setting and then increase the setting, testing plot output after each
change.
CAUTION:Thermalplottingtechnologyinvolveshightemperatures.
Incorrectmediaorcontrastsettingscandamagetheprintheadorother
componentsandvoidthewarranty.Mediadamagecanalsooccur.
7-10
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T R O U B L E S H O O T I N G
7
VORSICHT: BeiderthermischenPlottertechnologieentstehenhohe
Temperaturen. Ungeeignete Medien oder falsche
KontrasteinstellungenkönnendenDruckkopfoderandereBauteile
beschädigenundzuVerlustderGarantieführen. Auchkönnen
BeschädigungenandenMedien entstehen.
Formfeedstopsbeforedesiredlength
Possible Cause:
The form feed length is too short. The form
feed stops before the paper sensor can read
the “top of form” mark.
Solution:
1. Adjust the FFLENGTH setting on the control panel as described
in Chapter 4, Page 4-10.
Formfeeddoesnotstopattop-of-formmarks
Possible Cause:
The top-of-form sensor is not reading the
marks.
Solution:
1. Contact your authorized service center.
V8.5eRev2.2.2002
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T R O U B L E S H O O T I N G
7
Plotisskewedorunreadable
Figure7-8.Skewedplot
Possible Cause:
The scan width is incorrect.
Solution:
1. Adjust the scan width (byte count) in your host software
to 216 bytes or less.
7-12
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WARRANTY
8
The Imaging Systems Group Inc. (iSys) warrants our V8.5e plotters
to be free from defects in materials and workmanship as follows:
·
·
Labour and parts are warranted for a period of one (1) year
from the date of purchase.
This warranty applies only to products purchased from an
authorized dealer or agent, and extends only to the original
retailer purchaser.
·
This warranty only covers defects arising under normal usage
within the duty cycles per specifications, and does not cover
malfunction or failures resulting from misuse, abuse or neglect.
·
·
Consumable accessories are not included in this warranty.
iSys will extend to customers during the warranty period a Hot
Swap Program to further expedite warranty repair.
Hot Swap warranty is one (1) year for the V8.5e Thermal Plotter.
During the warranty period, iSys will exchange the plotter within
24 Hours (North America ONLY) free of charge to the customer.
Included with the thermal plotter will be an RMA Kit, which will
include all of the paper work needed to ship the defective plotter
back to iSys, at our expense. Hot Swap warranty is based on
availability. After the warranty has expired on the V8.5e Thermal
Plotter, the same service will be available at an established monthly
rate. Please call us for details and pricing.
8-1
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W A R R A N T Y
8
TERMS and CONDITIONS of Hot Swap and Post Hot Swap
a)
The product MUST be returned in the original or proper
packing material including any anti-static packaging. Any products
damaged in shipping due to inadequate packing will not be accepted
by iSys. The return must arrive at iSys within 14 days from receipt
of the RMA Kit. If these policies are violated, the customer will be
responsible for payment of the purchase price on the product.
b) Warranty from the manufacturer and warranty from iSys
will be null and void if it is discovered that the product is not
functional due to neglect or unauthorized personnel tampering with
the hardware.
8-2
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A P P E N D I X
A
ASCII TABLES
MSN: Most significant nibble
LSN: Least significant nibble
LSN
MSN
0
1
!
2
"
3
#
3
C
S
c
4
$
5
%
5
6
&
6
7
'
8
(
9
)
A
*
:
B
+
;
C
,
D
-
E
.
F
/
2
3
4
5
6
0
@
P
1
2
B
R
b
4
7
8
9
I
<
L
\
=
M
]
>
N
^
?
O
-
A
Q
a
D
T
d
E
U
e
F
V
f
G
W
g
H
X
h
J
K
[
Y
i
Z
j
`
k
l
m
n
o
7
p
q
r
s
t
u
v
w
x
y
z
{
I
}
~
VS
TableA-1.NormalASCIIcharacterset
LSN
MSN
0
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
EOT
LF
FF CR
TableA-2.ASCIIcontrolcodecharacterset
V8.5eRev2.2.2002
A-1
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A P P E N D I X
B
INTERFACECONNECTOR PIN ASSIGNMENT
Signal Pin Return Pin
Signal Name
Input Bit 1 (LSB)
Input Bit 2
Mnemonic
IND1
1
2
20
21
22
23
24
25
26
27
28
29
30
31
IND2
3
Input Bit 3
IND3
4
Input Bit 4
IND4
5
Input Bit 5
IND5
6
Input Bit 6
IND6
7
Input Bit 7
IND7
8
Input Bit 8 (MSB)
Clear
IND8
9
CLEAR
PICLK
READY
PRINT
NC
10
11
12
13
14
15
16
17
18
19
32
Parallel Input Clock
Ready
Print
Not Connected
Simultaneous Plot/Print
Remote Reset
Remote Form Feed
Remote End of Transmit
Remote Line Terminate
No Paper
33
34
35
36
37
37
37
SPP
RESET
RFFED
RE0TR
RLTER
NOPAP
ONLIN
Online
TableB-1.Versateccablepinouts(straightthrough)
V8.5e Rev2.2.2002
B-1
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INTERFACE CONNECTOR PIN ASSIGNMENT
B
Pin
1
Signal
STROBE
DATA 0
DATA 1
DATA 2
DATA 3
DATA 4
DATA 5
DATA 6
DATA 7
ACK
Pin
14
15
16
17
18
19
20
21
Signal
AFXT
ERROR
RESET
SLCTIN
GND
2
3
4
5
6
GND
7
GND
8
GND
9
22
23
24
25
GND
10
11
12
13
GND
BUSY
GND
PE
GND
SLCTOUT
TableB-2. Centronicscablepinouts(straightthrough)
B-2
V8.5e Rev2.2.2002
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APPENDIX
C
CENTRONICS INTERFACE BOARD
The new Centronics adapter (rev1-2) implements some improve-
ments over the previous (rev1-1) adapter card. These include:
a) Rev 1-2 cards will accept either of the two data transfer
methods described below automatically; no switches or
jumpers required.
b) Reliable data transfers using up to 40 ft length of
shielded cable.
c) Rev 1-1 adapter cards exhibit inconsistent data transfer
with newer generation PC.’s equipped with high speed
integrated Centronics parallel ports.
The following are two transfer formats that can be used with the
optional V8.5E Centronics parallel adapter:
1.)
Standard transfer format
To place the V8.5E Centronics adapter in raster mode, the
following 3 bytes (hex) must be sent to the Centronics
adapter card:
1B, 2A, 00
Once these 3 bytes are sent, rastered plot data can be sent
to the plotter as follows:
V8.5E bytes/scan menu setting
bytes/scan raster data
b1
216
b2
264
g1-g4
1728
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CENTRONICS INTERFACE BOARD
C
Once the V8.5E Centronics adapter is set to raster mode it
will remain in raster mode until the init line of the host
Centronics port is pulsed or the plotter power is cycled.
This will return the adapter to print mode.
2.)
Enhanced transfer format
For more flexibility, a 6 byte header can be sent before
each scan of rastered data. This header allows variable
bytes/scan plotting. The Centronics adapter also returns to
print mode at the end of every scan using this transfer
method. This allows the five 1B, 4X commands or the
standard ASCII control codes listed below in section 3 to be
used during plotting. The format of the 6 byte header is:
1B 2A 72 XX YY 01 where
XX = high byte of the
number of bytes/scan
YY = low byte of the
number of bytes/scan
Example:
To send a plot that is rastered to 200 bytes/
scan, send the following 6 byte header be-
fore each and every scan of 200 bytes:
1B 2A 72 00 C8 01 00C8 hex = 200 decimal
for a plot consisting of 1728 bytes/scan, send
1B 2A 72 06 C0 01 06C0 hex = 1728 decimal
The valid number of bytes that can be sent to the V8.5E
using this transfer method is as follows:
V8.5E bytes/scan menu setting valid number of bytes/scan
raster data (XX YY)
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CENTRONICS INTERFACE BOARD
C
Specifying XX YY at values greater than those indicated
will cause the V8.5E to terminate scans incorrectly.
3.) 1B 4X and control characters
Other commands that can be sent to the V8.5E Centronics
adapter:
1B 41
remote clear
1B 42
1B 43
1B 44
1B 45
1B 50 ZZ
remote line terminate
remote end of transmission
remote form feed
remote reset
sends blank scans to plotter from ZZ = 01
hex to FF hex
NOTE: These commands must be sent when the plotter is
in print mode. The commands will be ignored and inter-
preted as raster data if they are sent at any other time.
The V8.5E plotter also obeys standard control characters
which must be sent when the plotter is in print mode:
04
0A
0C
end of transmission
line feed
form feed
NOTE: print mode on the V8.5E means that all bytes that are
received by the plotter are interpreted as ASCII characters and
printed at 108 characters/line.
C-3
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