Star Micronics Switch DP8340R User Manual

DOT MATRIX PRINTER

DP8340R SERIES

[SERIAL INTERFACE]

USERS MANUAL

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TABLE OF CONTENTS

1. OUTLINE .............................................................................................. 1

2. UNPACKING AND INSTALLATION ................................................ 2

2-1. Unpacking .................................................................................... 2

2-2. Installation of Paper Holders and Re-Roll

Prevention Guard ......................................................................... 3

2-3. Handling Notes.............................................................................4

3. PART IDENTIFICATION AND NOMENCLATURE ........................ 5

3-1. Power Supply Unit ....................................................................... 5

3-2. Printer ........................................................................................... 6

3-3. Part Functional Description.......................................................... 7

4. INSTALLATION OF INK RIBBON AND PAPER.............................8

4-1. Installation of Ink Ribbon ............................................................ 8

4-2. Removal of Ink Ribbon ................................................................9

4-3. Paper Insertion ...........................................................................10

4-3-1. For Roll Paper .................................................................10

4-3-2. Roll Paper Installation

(When using the optional Printer Cover 8340R).............11

4-3-3. Validation Option Installation .........................................12

4-4. Roll Paper Removal ................................................................... 12

5. CONTROL CODES ............................................................................13

6. GENERAL SPECIFICATIONS.......................................................... 20

7. INTERFACE FOR MODEL DP8340RM

(MODULAR JACK CONNECTOR) ..................................................24

7-1. Interface Specifications ..............................................................24

7-2. Interface Circuit .........................................................................24

7-3. Setting of the DIP Switches ....................................................... 25

7-3-1. DIP-SW 1 ........................................................................25

7-3-2. DIP-SW2 .........................................................................25

7-4. Connectors and Signals ..............................................................26

7-5. Interface Connections.................................................................27

7-6. Peripheral Unit Drive Circuit .....................................................28

7-6-1. Cable Connection ............................................................28

7-6-2. Peripheral Drive Circuit ..................................................29

7-6-3. Control Codes.................................................................. 29

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8. INTERFACE FOR MODEL DP8340RD

(D-SUB 25 PIN CONNECTOR)......................................................... 30

8-1. Interface Specifications ..............................................................30

8-2. Interface Circuit ......................................................................... 31

8-2-1. RS-232C ..........................................................................31

8-2-2. Current Loop ................................................................... 31

8-3. Setting of the DIP Switches ....................................................... 32

8-3-1. DIP-SW 1 ........................................................................ 32

8-3-2. DIP-SW 2 ........................................................................ 32

8-4. Jumper Setting............................................................................33

8-4-1. Removal of the Bottom Cover ........................................33

8-4-2. Setting of Jumper ............................................................ 33

8-5. Connectors and Signals ..............................................................34

8-6. Interface Connections.................................................................35

8-7. Peripheral Unit Drive Circuit .....................................................36

8-7-1. Cable Connection ............................................................ 36

8-7-2. Peripheral Drive Circuit ..................................................37

8-7-3. Control Codes.................................................................. 37

9. DATA STRUCTURE AND CONTROL ............................................ 38

9-1. DTR Mode (1 BLOCK) ............................................................. 38

9-2. X-ON/X-OFF Mode................................................................... 39

9-3. STX-ETX Mode......................................................................... 41

10. CHARACTER CODE LIST..............................................................43

11. WHEN POWER IS SUPPLIED BY THE USER .............................46

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1. OUTLINE

The DP8340R series of serial dot matrix printers is for use in ECR, POS,

electronic instruments, banking machines and computer peripheral equipment.

The DP8340R series include the following features;

1) 2 color printing (Red and Black)

2) High-speed bidirectional printing (2 line/sec, 29 or 44 columns per line)

3) 9-pin print head

4) The interface conforms to RS-232C in M type, and to RS-232C/20mA

Current Loop in D type.

5) Commands for expanded characters, inverted characters, emphasized

characters, red and black printing, and 10CPI or 15CPI characters etc. are

provided, which makes the printer very versatile.

6) Simultaneous Data Communication and Printing

7) Error Checking Protocol

8) Peripheral Driver

9) One line validation printing (Option)

Model Name Notation

– 1 –

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2. UNPACKING AND INSTALLATION

2-1. Unpacking

After opening the box, check if all necessary accessories are included.

(A) Printer

1 Printer

2 User’s Manual

3 Paper Holders

4 Re-Roll Prevention Guard

5 Ink Ribbon

6 DIP Switch Cover

(B) Power Supply Unit

1 Power Supply Unit

2 User’s Manual

Figure 2-1. Unpacking

– 2 –

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2-2. Installation of Paper Holders and Re-Roll Prevention Guard

Install the Paper Holders in the intermost holes in the rear of the printer.

Figure 2-2. Installation of Paper Holders

– 3 –

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Install the Re-Roll Prevention Wire in the holes of the printer cover. Twisting the

Wire as shown in the figure below, will make the installation easier.

Figure 2-3. Installation of Re-Roll Prevention

2-3. Handling Notes

(1) Install the printer near an easily accessible socket-outlet.

(2) Place the unit on a flat and stable surface for operation.

(3) Do not connect the AC Power Plug to the same outlet used for other noise

generating devices (large motors, etc.).

(4) Be careful not to drop paper clips, pins and other foreign objects into the

unit.

(5) Wipe off dirt with a soft cloth soaked in alcohol or benzine. Do not use

Lacquer thinner, Trichlorethelene or Ketone solvents because they may

damage plastic parts.

(6) Use a soft brush, etc. for cleaning the printer mechanism and PCB.

(7) Keep hands out of printer while power is on.

(8) Do not attempt to print when there is no ink ribbon or paper in the unit. The

print head life could be severly reduced.

(9) If the paper is fastened tightly to the roll, the paper may not detach from the

roll when the end is reached.

If this happens, the no paper detection function and paper feed will not

operate.

(10) Always keep the printer cover attached when printing to prevent paper

jams, noise, and other problems.

(11) Always turn the power off before opening the printer cover. (e.g. When

renewing a ink ribbon)

– 4 –

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3. PART IDENTIFICATION AND NOMENCLATURE

3-1. Power Supply Unit

DC Power Connector (Output)

Shape of AC Power plug will

vary according to destinations.

Figure 3-1. Power Supply Unit

– 5 –

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3-2. Printer

Figure 3-2. Printer: Front View

Figure 3-3. Printer: Rear View

– 6 –

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3-3. Part Functional Description

(1) AC Power Plug

(2) DC Power Outlet

(3) Printer Cover

(4) POWER Lamp

(5) ON LINE Lamp

Connect to an outlet of the specified voltage.

Supplies DC 12V power to the printer.

Protects the printer against dust and reduces noise.

Lights up (green LED) when power is on.

Lights up (green LED) when the unit is in the online

mode.

(6) ALARM Lamp

Lights up (red LED) when printer operation is not

normal, or the printer is out of paper. It is necessary

to install paper into the printer and press the ON

LINE Button to recover from paper empty status.

Turn off the printer power in order to recover from

abnormal operation.

(7) ON LINE Button

(8) FEED Button

Toggles between the on-line and off-line modes. The

printer will go on-line after turning power on.

Momentary operation of this button provides one

line feed. Pressing this button continuously will

cause continuous paper feed. If power is turned on

while pressing this button, self printing*1 will be

performed.

(9) Interface Connector Connects the printer to host computers. Check that

both computer and printer are off before connecting.

(10) DIP Switches

Allows for setting of various functions according to

user requirements.

*1 Self Printing

This printer has another convenient function, the

Automatic Test Printing. With the ink ribbon and

paper properly installed in the printer, turn the power

ON while holding down the Feed switch. Test print-

ing will start and stop again automatically.

– 7 –

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4. INSTALLATION OF INK RIBBON AND PAPER

4-1. Installation of Ink Ribbon

(1) Turn power off, lift the Printer Cover up and remove it.

Note: Be careful not to touch the print head immediately after printing,

because it can get very hot.

Figure 4-1. Printer Cover Removal

(2) Unwind ribbon so that the spools are separated as shown in Figure 4-3.

Hold the ribbon taut as shown with the drive pins facing down and slide the

ribbonbetweentheprintheadandtheplaten. Whilekeepingtheribbontaut,

wrap one side around the black ribbon guide on the end of the platen and

droponespoolonthespoolshaft. Asyoumovethespooldownwards, move

the detecting lever aside to allow the spool to drop into place. Make sure the

spool drive pins engage with the spool drive holes. As the spool drops into

place there will be a click.

(3) While continuing to hold the ribbon taut, install the remaining ribbon spool

in a similar fashion.

(4) Turn the spool that rotates freely to take up the ribbon slack.

Ribbon Life

Ribbon life

Description

Black

Red

SF-03BR

(Fuji Kagakushi

Kogyo Co., Ltd.)

Approx.

0.8 million

characters

– 8 –

Approx.

0.4 million

characters

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Ribbon Life

Ribbon life

Black

Description

SF-03B

(Fuji Kagakushi

Kogyo Co., Ltd.)

Approx.

0.8 million

characters

Figure 4-2. Installation of Ink Ribbon

Figure 4-3. Ribbon Spools

4-2. Removal of Ink Ribbon

Hold the spool and lift gently, rotating it until the ribbon sags. Push the ribbon

detecting lever out, lift the spool until it comes off the shaft. Remove the second

spool in a similar manner.

(Do not apply excessive force when lifting spools.)

– 9 –

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4-3. Paper Insertion

4-3-1. For Roll Paper

(1) Cut the Roll Paper end straight and square. Hold the roll so that the paper

comes from the bottom.

(2) Attach the Roll Paper to the Holders Paper by slipping one side of the roll

onto the Hub and pulling the other Hub out to allow the roll to slip in place.

(3) Insert the paper evenly into the Paper Insertion Slot.

(4) Turn the Power Switch “ON”, and press the FEED Button. The paper will

be fed into the unit.

Figure 4-4. Paper Insertion (1)

Figure 4-5. Paper Insertion (2)

– 10 –

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4-3-2. RollPaperInstallation(WhenusingtheoptionalPrinterCover8340R)

When installing roll paper with the optional “Ptinter Cover 8340R”, please use

the following procedure.

(1) Turn power off, lift the Printer Cover up and remove it.

Note: Be careful not to touch the print head immediately after printing

because it can get very hot.

(2) Insert paper into the printer, and feed the paper so it extends 3 inches or

more above the top surface of the printer.

(3) Insert the paper into the slot in the “Printer Cover 8340R”.

(4) Install the “Printer Cover 8340R” on the printer.

Figure 4-6. Replace the Printer Cover

Figure 4-7. Printer Cover 8340R

– 11 –

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4-3-3. Validation Option Installation

The validation printing requires the optional printer cover 8340R. Refer to

item 4-3-2 for the installation.

(1) Turn power ON.

(2) Enter the printer the validation mode.

(Refer to the control code “GS” in Chapter 5.)

(3) Insert the material to be validated against the right side of the slot in the

Printer Cover 8340R.

Figure 4-8. Insertion of Material to be validated

4-4.

Roll Paper Removal

Cut the paper close to the slot and use the feed button until paper has passed

completely through the printer.

Note: Do not try to remove the paper by hand as it could become crooked and

get jammed inside the printer.

– 12 –

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5. CONTROL CODES

(0A)^H

CODE

FUNCTION

Print and line feed instruction

OUTLINE

The LF code causes the data in the line buffer to be printed,

followed by a single line feed. When the line buffer is empty,

only the feed takes place.

(0D)^H

CODE

FUNCTION

Print and line feed instruction

Same function as of LF code.

OUTLINE

However, when the DIP switch 2-4 is ON, the CR code

becomes invalid.

CODE

(0E)^H

Expanded character instruction

FUNCTION

OUTLINE

This code causes the printer to print expanded characters

twice as wide as the regular ones. This remains in effect until

a DC4 code is received.

DC4

(14)^H

CODE

FUNCTION

Release from expanded characters

OUTLINE

The expanded character instruction is released by the DC4

code, and the succeeding data is printed as regular width

characters.

CODE

ESC-1

(1B)^H(2D)H (01)H or (1B)H (2D)H (31)H

Underline mode selection

FUNCTION

OUTLINE

All data received after this code is underlined until a ESC-0

is received.

ESC-0

CODE

(1B)^H(2D)H (00)H or (1B)H (2D)H (30)H

Release from underline mode

FUNCTION

OUTLINE

The underline mode selection is released by this code.

– 13 –

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(0F)^H

CODE

FUNCTION

Inverted print instruction

OUTLINE

This function causes the printing to be inverted. This code

must be received at the beginning of a line. If this code is

received anywhere other than at the beginning of a line, it is

disregarded. Accordingly, normal characters and inverted

characters, can not be mixed on the same line.

DC2

(12)^H

CODE

FUNCTION

Release from inverted print instruction

OUTLINE

The inverted print instruction is released by this code. This

code must be received at the beginning of a line.

ESC E

(1B)^H(45)H

CODE

FUNCTION

Emphasized print mode instruction

OUTLINE

Data following this command is printed with emphasized

characters.

In this mode, characters are printed in a single direction.

ESC F

(1B)^H(46)H

CODE

FUNCTION

Release from emphasized print instruction

Emphasized print is released.

OUTLINE

ESC 4

(1B)^H(34)H

CODE

Red character print instruction

FUNCTION

OUTLINE

This command causes subsequent data to be printed with red

characters.

The instruction is released by the code, ESC 5.

Red and black characters may be intermixed.

This command is ignored when DIP SW 2-3 is OFF.

ESC 5

(1B)^H(35)H

CODE

FUNCTION

Release from red character print instruction

OUTLINE

The red character print instruction is released by this code.

– 14 –

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ESC a n

(1B)^H(61)H

CODE

n-line feed

FUNCTION

OUTLINE

Afterprintingthedatainthecurrentline,nlinesarefedbythis

code. The value of n ranges from 1 to 120.

ESC C n

(1B)^H(43)H

CODE

FUNCTION

Sets page length in lines

OUTLINE

This code sets the length of a page to n lines. The value of n

ranges from 1 to 120. On initialization, the page length

default condition will be 42 lines. The line feed pitch is one-

sixth inch.

ESC Nn

(1B)^H(4E)H

CODE

Sets bottom margin in lines

FUNCTION

OUTLINE

Upon receiving this code, the bottom margin is set to n lines.

120; Default Value n = 0

ESC O

(1B)^H(4F)H

CODE

Cancels bottom margin.

FUNCTION

OUTLINE

Upon input of this code, bottom margin setting is cleared.

(0C)^H

CODE

Form feed

FUNCTION

OUTLINE

The FF code prints the data in the current line and transports

the paper to the start of the next page.

– 15 –

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ESC @

(1B)^H(40)H

CODE

Printer initialization

FUNCTION

OUTLINE

All printing conditions except ESC BEL n1 n2, the line buffer

and data buffer are set to the power on default condition.

ESC BEL n1 n2

(1B)H (07)H n1 n2

CODE

Sets peripheral unit drive pulse duration.

FUNCTION

OUTLINE

This command sets the pulse duration for peripheral unit

drive (Paper Cutter, Take-Up Device, cash drawer, etc.)

Pulse Duration = 10 × n¹(ms)

Delay = 10 × n²(ms)

127; 1

127

Default value: n¹= n2 = 20

Executed by BEL code and FS code after printing.

BEL

(07)^H

CODE

FUNCTION

Trigger peripheral unit drive (Deferred)

OUTLINE

Causes a peripheral drive pulse to be generated. This code is

normallystoredinthebufferandisperformedasitisreceived

from the data queue.

– 16 –

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(1C)^H

CODE

FUNCTION

Trigger peripheral unit drive (immediate)

OUTLINE

Causes a peripheral drive pulse to be generated immediately

ENQ

(05)^H

CODE

Enquiry

FUNCTION

OUTLINE

When this code is received, the printer outputs status data.

If it is input after text data input in the STX-ETX mode, the

printer outputs status data and the check byte.

STX

(02)^H

CODE

Start of text

FUNCTION

OUTLINE

When this code is received, the printer enters the STX-ETX

mode. ThiscodeisignoredifreceivedwhenSTX-ETXmode

is already in effect.

ETX

(03)^H

CODE

End of text

FUNCTION

OUTLINE

When this code is received, the printer leaves the STX-ETX

mode. Contents of the data buffer is printed, this code is

ignored if received before ENQ.

CAN

(18)^H

CODE

FUNCTION

Clears print buffer

OUTLINE

Upon input of this code the data buffer and line buffer is

cleared.

ESC P

(1B)^H(50)H

CODE

Select 10 CPI

FUNCTION

OUTLINE

This code causes the printer to print at 10 CPI. The number

of columns per is 29.

– 17 –

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ESC M

(1B)^H(4D)H

CODE

Select 15 CPI

FUNCTION

OUTLINE

This code causes the printer to print at 15 CPI. The number

of columns per line is 44. When the power is turned on, the

15 CPI mode is selected.

(1D)^H

CODE

Validation printing instruction

FUNCTION

OUTLINE

This code causes the printer to perform validation printing

of a maximum of 32 subsequent characters (at 15 CPI, from

the thirteenth to the forty-forth column).

After the GS code is received, a maximum of 32 characters

should be input, followed by the LF code which indicates

the end of the validation printing data.

(At this time, control codes except FS, ENQ, CAN and SUB

codes, or any character received beyond the limit of 32

characters are ignored.)

When the printer enters the validation mode, the ribbon is

shifted up and the ON-LINE lamp blinks. (This lamp goes

on and off at a 0.5-second interval until the end of the va-

lidation mode.) Afterthematerialtobevalidatedisinserted,

and the LF button is pressed, the validate line is printed,

followed by a single line feed. When the check is removed

and the ON-LINE button is pressed, the printer returns to

regular mode and is set to ON-LINE status.

1) The print settings by commands (such as emphasized

REMARKS

mode and underline mode) are invalid only during val-

idation printing.

2) When the CAN code is received in the validation mode,

the printer returns to regular mode, and the mechanism

is initialized.

3) If the FS or SUB codes is received in the validation

mode, these codes are executed just after the printer

returns to regular mode.

4) In the validation mode, the LF button and the ON-LINE

button do not work except the above behavior.

5) If the printer has a Red black ribbon installed, the va-

lidate line will be printed in red.

– 18 –

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Character Code List

Character

Code

Function

(0A)H

(0D)H

Print and line feed instruction

(same as LF)

(0E)H

(14)H

Expanded character instruction

Expanded character release

Underline instruction

DC4

ESC-1

(1B)H (2D)H(01)H

(1B)H (2D)H (31)H

(1B)H (2D)H(00)H

(1B)H (2D)H (30)H

(0F)H

ESC-0

Underline release

Inverted print instruction

Inverted print release

DC2

ESC E

(12)H

(1B)H (45)H

Emphasized print instruction

(one-way printing)

10 ESC F

11 ESC 4

12 ESC 5

13 ESC a n

14 ESC C n

(1B)H (46)H

(1B)H (34)H

(1B)H (35)H

(1B)H (61)H n

(1B)H (43)H n

Emphasized print release

Red character print instruction

Red character print release

n-line feed instruction

Sets page length in lines

120 (default n = 42)

Set bottom margin in lines

120 (default n = 0)

15 ESC N n

(1B)H (4E)H n

16 ESC O

17 FF

(1B)H (4F)H

(0C)H

Cancel Bottom margin

Form feed

18 ESC @

19 ESC BEL

n1 n2

(1B)H (40)H

(1B)H (07)H

n1 n2

Printer initialization instruction

Set peripheral unit drive pulse duration

127, 1

127

(default n1 = n2 = 20)

20 BEL

21 FS

(07)H

(1C)H

Trigger peripheral unit drive (Deferred)

Trigger peripheral unit drive

(Immediate)

22 ENQ

23 STX

24 ETX

25 CAN

26 ESC P

27 ESC M

28 GS

(05)H

Enquiry

(02)H

Start of text enter STX-ETX mode

End of text end STX-ETX mode

Clears print buffer

(03)H

(18)H

(1B)H (50)H

(1B)H (4D)H

(1D)H

Select 10 CPI

Select 15 CPI (Default value)

Validation printing instruction

– 19 –

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6. GENERAL SPECIFICATIONS

Printing method

Serial impact dot matrix printing,

9 wires

Number of print columns 29 columns (10CPI), 44 columns (15CPI)

Print speed

Print direction

Line spacing

Approx. 2 lines/sec

Bi-directional

1/6 inch

Paper feed method

Paper feed speed

Character set

Friction Feed

Approx. 12 lines/sec

ASCII

Special

Block graphics*

96 characters

64 characters

Font configuration

10CPI Ordinary characters 5 × 9 dots

Block graphics* 6 × 6 dots

15CPI Ordinary characters 7 × 9 half dots

Block graphics* 5 × 6 dots

* Graphic Feed Not Available

Character size

Character spacing

Dot spacing

Gross dot

10CPI 2.00 (H) × 2.42 (V) mm

15CPI 1.32 (H) × 2.42 (V) mm

10CPI 2.55 mm (1/10 inch)

15CPI 1.70 mm (1/15 inch)

10CPI H=0.425 mm V=0.353 mm

15CPI H=0.340 mm V=0.353 mm

10CPI 174 dots/wire/line

15CPI 220 dots/wire/line

10CPI 73.53 mm

Print area

15CPI 74.46 mm

Approx. 1.5 KB

Print Buffer

Peripheral drive

Serial Interface

Model DP8340-RM

Model DP8340-RD

External dimensions

(Printer)

1 output (1A max. at 12V)

Only RS-232C

RS-232C/20mA Current Loop

202(W) × 200(D) × 98(H) mm

(without paper holder, DC Power Connector)

60(W) × 120(D) × 36(H) mm (without AC cable)

(Power supply unit)

Weight

(Printer)

(Power supply unit)

Approx. 1.9 kg

Approx. 0.4 kg (without AC cable)

– 20 –

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Power supply unit

Four supplies available with following ratings

Input

Output

AC 100 – 240 V

47Hz – 63 Hz

0.8 A Max

DC 12.0 V ± 5%

2.0 A

Paper specification

Paper type

Size Paper width

Roll diameter

Thickness (single)

(2 copy)

Ordinary and carbonless copy paper

82.55 ± 0.5mm (3.25 inches)

80 mm outer diameter (Max)

0.07 mm (52.3 g/m²) to 0.09 mm (64g/m²)

One copy and one original (max 0.13 mm)

Paper should not be attached to the core

Check (Refer to Fig. 6-2)

Paper end

One line validation

Paper width 70 to 90 mm

Thickness 0.1 to 0.15 mm

* Requires the optional Printer Cover 8340R

Ink ribbon specification

Color

Ribbon material

Ribbon size

Spool

Black and red / Black only

Nylon (#40 denier)

13mm × 6m

13mm (width), 35mm in diameter (two spool)

Recommended ribbon SF-03BR (Black and red), SF-03B (Black)

(manufactured by Fuji Kagakushi Kogyo Co., Ltd.)

or approved equivalent.

Operating conditions

Temperature

Humidity

Temperature

Humidity

+5˚C — +40˚C

10% — 80%RH

–20˚C — +70˚C

5% — 95%RH (+40˚C)

Storage conditions

Head life

70 million characters

Printer reliability

5.0 million lines MCBF (except head life)

– 21 –

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Figure 6-1. Roll Paper and Print Area

Figure 6-2. Material to be validated and One Line Validation Printing

– 22 –

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Figure 6-3. External Dimensions (Printer)

36mm

120mm

2.0m

Shape of AC Power plug will

vary according to destinations.

Figure 6-4. External Dimensions (Power Supply Unit)

– 23 –

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7. INTERFACE FOR MODEL DP8340RM

(MODULAR JACK CONNECTOR)

7-1. Interface Specifications

(1) Synchronization system Asynchronous

(2) Baud rate

150, 300, 600, 1200, 2400, 4800, 9600,

BPS (Selectable)

(3) Word length

Start bit:

1 bit

Data bit:

Parity bit:

Stop bit:

7 or 8 bits (Selectable)

Odd, Even, or None (Selectable)

1 or 2 bit length (Selectable)

(4) Signal polarity

RS-232C

MARK : Logic “1” (–3V to –25V)

SPACE : Logic “0” (+3V to +25V)

(5) Handshaking

1 DTR Mode (1 block)

2 X-ON/Y-OFF Mode

3 STX-ETX Mode

Note: STX-ETX Mode may use DTR or X-ON/X-OFF, selected by DIP SW 1-

5. See Chapter 9. for details.

7-2. Interface Circuit

Input (RXD, CTS)

Output (DTR, FAULT, TXD, RTS)

Figure 7-1. RS-232C Interface

– 24 –

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7-3. Setting of the DIP Switches

7-3-1. DIP-SW 1

Factory

setting

Switch

OFF

TYPE

ONLY

1-1

1-2

1-3

1-4

1-5

1-6

1-7

1-8

Data transfer rate — see below (*1)

Stop bit 1

DTR MODE (1 BLOCK)

8 data bits

Stop bit 2

X-ON/X-OFF MODE

7 data bits

No parity

Odd parity

Parity checked

Even parity

(*2) DIP Switch 2-3 should

be set to ON when you

use a 2-color ribbon for

2-color printing.

(*1)

Baud rate

150

SW1-1

OFF

SW1-2

OFF

SW1-3

OFF

ON/OFF

300

600

1200

2400

4800

9600

It should be set to OFF

when a monochrome

ribbon is used.

OFF

7-3-2. DIP-SW2

Factory

setting

Switch

OFF

International character set :

U.S.A

2-1

FRANCE

2-2

2-3(*2)

2-4

Always ON

Monochrome Ribbon

CR Valid

2-color Ribbon

CR Invalid

Note: DIP switches are only read by the

controller at power turn on. DIP

switch changes should be made

with power off, or after changing

switch setting, turn the power off

and on again.

Figure 7-2. Setting of DIP Switch

– 25 –

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7-4. Connectors and Signals

Signal

Pin No.

Direction

Function

Name

GND

—

Shield Ground

Frame Ground

This pin carries data from the printer.

(Return channel)

TXD

OUT

RXD

RTS

This pin carries data to the printer.

This is SPACE when the printer power is ON.

This is MARK when the printer is abnormal.

(Refer to Error Condition Alarm Mode *1.)

Or there is a paper error.

OUT

FAULT

OUT

GND

DTR

—

Signal ground.

This printer turns this pin SPACE when

it is ready to receive data.

OUT

Figure 7-3. Modular Jack Connector

*1 Error Condition Alarm Mode

If an error condition is detected during operation, the printer will stop

printing and cause the FAULT signal to go MARK. All solenoides &

motors will be de-energized. It is necessary to turn the printer power

off and on again in order to recover from the alarm mode.

This printer can detect the following error coditions:

a. Motor Lock

b. Defective timing detector

c. Micro-proccessor out of program sequence

– 26 –

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7-5. Interface Connections

For interface connections, refer to the instructions for interface of the host

computer. The following gives basic examples.

TYPE

ONLY

Figure 7-4. Interface Connections using Modular/D-Sub 25 Adapter to IBM PC

(Use with straight through cable wiring)

Before selecting interface cable wiring, it is necessary to know the wiring of the

modular interconnect cable. Figure 7-5. below shows the way to determine if the

cable is straight connected, or cross connected. Cross connected wiring is not

suitable for shielded cable.

Figure 7-5.

– 27 –

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Figure 7-6. Wiring of cable for direct connection between DP8340

and IBM PC serial part

7-6. Peripheral Unit Drive Circuit

The Control Board of this unit is equipped with a circuit for driving a peripheral

unit (Paper Cutter, Take-Up Device, Cash Drawer, etc.)

The Control Board Connector (CN3) is used to connect the Peripheral Unit to the

DriveCircuit.WhenusingthiscircuitconnecttheperipheralunitcabletotheCN3

Connector (cable is not included). Use a cable with the following specifications:

Note: Do not run cable near devices generating large amounts of electrical

noise.

Figure 7-7. Cable Specifications

7-6-1. Cable Connection

Remove the printer Bottom Cover and connect the cable to the CN3 Connector.

Pass the cable around the control board as shown and through grommetted hole

in bottom cover. (Grommet may have to be cut)

– 28 –

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TYPE

ONLY

Figure 7-8. Cable Connection

7-6-2. Peripheral Drive Circuit

Absolute Ratings (Ta = 25˚C)

Drive

Output

12V, MAX. 1A

Voltage Breakdown

100V

Peak Forward Current

Figure 7-9. Drive Circuit

Caution: Do not use external power supply with peripheral drive circuit.

7-6-3. Control Codes

Codes for Drive Circuit control are ESC BEL n1 n2, BEL and FS. Refer to the

Control Codes in Chapter 5.

– 29 –

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8. INTERFACE FOR MODEL DP8340RD

(D-SUB 25 PIN CONNECTOR)

8-1. Interface Specifications

(1) Synchronization system Asynchronous

(2) Baud rate

150, 300, 600, 1200, 2400, 4800, 9600

BPS (Selectable)

(3) World length

Start bit:

1 bit

Data bit:

Parity bit:

Stop bit:

7 or 8 bits (Selectable)

Odd, Even, or None (Selectable)

1 or 2 bit length (Selectable)

(4) Signal polarity

RS-232C

MARK : Logic “1” (–3V to –25V)

SPACE : Logic “0” (+3V to +25V)

MARK : Logic “1” (Current ON)

SPACE : Logic “0” (Current OFF)

Current Loop

1 Start bit

2 Data bits

3 Parity bit

4 Stop bit

(5) Handshaking

1 DTR Mode (1 block)

2 X-ON/Y-OFF Mode

3 STX-ETX Mode

Note: STX-ETX Mode may use DTR or X-ON/Y-OFF, selected by DIP SW 1-

5. See Chapter 9. for details.

– 30 –

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8-2. Interface Circuit

8-2-1. RS-232C

Input (RXD, CTS)

TYPE

ONLY

Output (DTR, FAULT, TXD, RCH, RTS)

Figure 8-1. RS232-C Interface

8-2-2. Current Loop

Input (TTY-RXD, TTY-RXDR)

Output (TTY-TXD, TTY-TXDR)

Note: Resistance should be set so that Current Loop is restricted to the range of

10 ~ 20 mA.

Figure 8-2. Current Loop Interface

– 31 –

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8-3. Setting of the DIP Switches

8-3-1. DIP-SW 1

Factory

setting

Switch

OFF

1-1

1-2

1-3

1-4

1-5

1-6

1-7

1-8

Data transfer rate — see below (*1)

Stop bit 1

DTR MODE (1 BLOCK)

8 data bits

Stop bit 2

X-ON/X-OFF MODE

7 data bits

No parity

Odd parity

Parity checked

Even parity

(*2) DIP Switch 2-3 should

be set to ON when you

use a 2-color ribbon for

2-color printing.

(*1)

Baud rate

150

SW1-1

OFF

SW1-2

OFF

SW1-3

OFF

ON/OFF

300

600

1200

2400

4800

9600

It should be set to OFF

when a monochrome

ribbon is used.

OFF

8-3-2. DIP-SW 2

Factory

setting

Switch

OFF

International character set :

U.S.A

2-1

FRANCE

2-2

2-3(*2)

2-4

Always ON

Monochrome Ribbon

CR Valid

2-color Ribbon

CR Invalid

Note: DIP switches are only read by the

controller at power turn on. DIP

switch changes should be made

with power off, or after changing

switch setting, turn the power off

and on again.

Figure 8-3. Setting of DIP Switch

– 32 –

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8-4. Jumper Setting

The serial interface is set to the RS-232C mode upon shipment from the factory.

When using in the 20mA current loop mode, it is necessary to set the jumpers.

The jumpers built into the Control Board allow for setting of functions shown in

the table. However, the Bottom Cover must be removed to perform this setting.

For setting the Jumper, disconnect the power source beforehand.

8-4-1. Removal of the Bottom Cover

TYPE

ONLY

Figure 8-4. Removal of the Bottom Cover

8-4-2. Setting of Jumper

Jumper

No.

Factory

Setting

Function

OPEN

RS-232C

SHORT

Current Loop

Selection of Current Loop

A-C

B-C

Output (between TTY-TXD and

TTY-TXDR) Signal Polarity

(inversion possible) Consult

STAR MICRONICS for details.

– 33 –

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8-5. Connectors and Signals

Signal

Name

Pin No.

Direction

Function

GND

—

Frame Ground

This pin carries data from the printer.

(Return channel)

TXD

OUT

RXD

RTS

OUT

This pin carries data to the printer.

This is SPACE when the printer power is ON.

This pin is SPACE when the computer is

ready to send data.The printer does not

check this pin.

This pin is SPACE when the computer is

ready to send data.The printer does not

check this pin.

CTS

DSR

—

GND

N/C

Signal ground.

Unused.

This pin is the return path for data

transmitted from the printer on the 20mA

current loop.

This pin carries data from the printer on the

20mA current loop.

TTY TXDR

TTY TXD

—

OUT

This pin is SPACE when the printer is ready

to receive data. This line carries the same

signal as pin 20.

RCH

OUT

N/C

GND

Unused.

Signal ground.

—

This is MARK when the printer is abnor-

mal. (Refer to Error Condition Alarm Mode

*1.) Or there is a paper error.

15 ~ 16

FAULT

N/C

OUT

Unused.

This pin is the return path for data transmit-

ted from the printer on the 20mA current

loop.

This pin is the return path for data trans-

mitted to the printer on the 20mA current

loop.

TTY TXDR

—

TTY RXDR

TTY RXD

This pin carries data to the printer on the

20mA current loop.

This printer turns this pin SPACE when it is

ready to receive data.

Unused.

DTR

N/C

OUT

21 ~ 22

This pin is the return path for data trans-

mitted to the printer on the 20mA current

loop.

TTY RXDR

—

This pin carries data from the printer on the

20mA current loop.

This pin carries data to the printer on the

20mA current loop.

TTY TXD

TTY RXD

OUT

– 34 –

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Figure 8-5. D-Sub 25 Pin Connector

*1 Error Condition Alarm Mode

If an error condition is detected during operation, the printer will stop

printing and cause the FAULT signal to go MARK. All solenoides & motors

will be de-energized. It is necessary to turn the printer power off and on again

in order to recover from the alarm mode.

TYPE

ONLY

This printer can detect the following error coditions:

a. Motor Lock

b. Defective timing detector

c. Micro-proccessor out of program sequence

8-6. Interface Connections

For interface connections, refer to the instructions for interface of the host

computer. The following gives one basic example of connections.

Figure 8-6. Interface Connections

with D-Sub 25 Pin Connector to IBM PC

– 35 –

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8-7. Peripheral Unit Drive Circuit

The Control Board of this unit is equipped with a circuit for driving a peripheral

unit (Paper Cutter, Take-Up Device, Cash Drawer, etc.)

The Control Board Connector (CN3) is used to connect the Peripheral Unit to the

DriveCircuit.WhenusingthiscircuitconnecttheperipheralunitcabletotheCN3

Connector (cable is not included). Use a cable with the following specifications:

Note: Do not run cable near devices generating large amounts of electrical

noise.

Figure 8-7. Cable Specifications

8-7-1. Cable Connection

Remove the printer Bottom Cover and connect the cable to the CN3 Connector.

Pass the cable around the control board as shown and through grommetted hole

in bottom cover. (Grommet may have to be cut)

– 36 –

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TYPE

ONLY

Figure 8-8. Cable Connection

8-7-2. Peripheral Drive Circuit

Absolute Ratings (Ta = 25˚C)

Drive

Output

12V, MAX. 1A

Voltage Breakdown

100V

Peak Forward Current

Figure 8-9. Drive Circuit

Caution:

Do not use external power supply with peripheral drive circuit.

8-7-3. Control Codes

Codes for Drive Circuit control are ESC BEL n¹n2, BEL and FS. Refer to the

Control Codes in Chapter 5.

– 37 –

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9. DATA STRUCTURE AND CONTROL

9-1. DTR Mode (1 BLOCK)

Controls Data Transfer by using DTR line as BUSY FLAG

(a)

(b) In case of Paper Empty

Paper Empty

Whenthepaperoutdetectorindicatesendofpaper, theprinterstopsprintingafter

amaximumoftwolinesofprintingorpaperfeed. TheprintergoesOFFLINEand

sets the DTR to “MARK” status immediately after occurrence of a paper empty.

It is necessary to install paper into the printer and press the ON LINE BUTTON

to light the ON LINE LAMP in order to recover from paper empty status.

Machine Error

Amachineerrormaybegeneratedbypaperjammingorwhentheprinterisunable

to print data. When a machine error occurs the printer stops printing. The printer

goes OFF LINE and sets the DTR to “MARK” status immediately after the

occurrence of Machine Error. It is necessary to turn the printer power off and on

again in order to recover from Machine Error.

– 38 –

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9-2. X-ON/X-OFF Mode

The printer transmits an X-ON (Control Code; DC1, Hexadecimal Value; 11H,)

signal after power is turned on, if there is no printer error being generated. When

this signal is received by the host computer, the host computer transmits the data

to the printer. The X-ON signal is output intermittently every three seconds until

the host computer receives and responds to this signal.

The X-OFF (DC3, 13H) signal outputting begins when the amount of empty

space in the buffer becomes less than 256 bytes. When the computer receives the

X-OFFsignal, itwillhaltdatatransmissionassoonasitcan. Howeverevenatthis

time the printer can receive data until the buffer is completely full. An X-ON

signal is output when the contents of the buffer goes below 256 bytes. The

increase of the empty area in the buffer is caused by printing. If the computer

causes a buffer overflow, a flag bit in the status register will be set. (See Status)

The X-OFF signal will continue to be output at a 3-second interval until the data

buffer becomes near empty (less than 256 bytes).

– 39 –

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Paper Empty

Whenthepaperoutdetectorindicatesendofpaper, theprinterstopsprintingafter

a maximum of two lines of printing or paper feed. The host computer can receive

theprinterstatusbytransmittinganENQcodetotheprinter.TheprintergoesOFF

LINEandsetstheDTRto“MARK”statusin5secondsafteroccurrenceofapaper

empty. It is necessary to install paper into the printer and press the ON LINE

BUTTON to light the ON LINE LAMP in order to recover from paper empty

status.

Machine Error

Amachineerrormaybegeneratedbypaperjammingorwhentheprinterisunable

toprintdata.Whenamachineerroroccurstheprinterstopsprinting.IntheX-ON/

X-OFF mode, the printer outputs an X-OFF signal immediately. At this time the

host computer can receive the printer status after transmitting an ENQ code to

printer. The printer goes OFF LINE and sets the DTR to “MARK” status within

5 seconds after the occurrence of Machine Error. It is necessary to turn the printer

power off and on again in order to recover from Machine Error.

STATUS

Parity

In DTR mode and X-ON/X-OFF mode parity check is done on vertical parity

only.

Framing Error

Framing Error occurs when SPACE signal is detected at STOP Bit time. Framing

error and vertical parity error will be indicated by printing “?”.

– 40 –

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9-3. STX-ETX Mode

The start of the STX-ETX mode should occur with a totally empty print buffer.

This can be achieved by sending an ENQ code to the printer and checking the

status until the status code indicates an empty buffer. At that point, the STX code

is sent by the host computer followed by a data block. While receiving the data

block, the printer generates a horizontal parity check character. After the data

block is sent, the host computer sends an ENQ which causes the printer to return

2 characters, one would be the normal status character, and the second would be

the horizontal parity check character that was generated by the printer while the

data block was received.

The host computer checks the status character to determine if any vertical parity

errors or other errors occurred during block transmission, and checks the

horizontal parity character against a character generated in the host computer

while the data was transmitted. If there are no errors, ETX causes the buffer to be

printed, but if an error is detected, CAN code clears the buffer and the data is

transmitted again. Any control codes transmitted to the printer during the STX-

ETX mode will be ignored as control codes, but will be included in the check

character. This is done to prevent a control code received in error from causing

printing of erroneous data.

STATUS

Parity

Vertical and horizontal parity check is executed in STX-ETX mode.

Framing Error

Framing Error occurs when SPACE signal is detected at STOP Bit time. Framing

error or even vertical parity error will be indicated by printing “?”.

– 41 –

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STX-ETX Mode Flow Diagram

– 42 –

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10. CHARACTER CODE LIST

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International Character Sets

– 45 –

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11. WHEN POWER IS SUPPLIED BY THE USER

When printer power is supplied by the user rather than through the accessory

power source unit, please be careful of the following points.

+10%

–5%

Note 1: The power supply must be +12V

2A or above. An electrolytic ca-

pacitor (C = 4700µF/25V to 6800µF/25V) must be connected across

the output of the power supply.

Note 2: A DC power plug is available as an option.

GND

+12V

GND

Reference: Design the power supply referring to the power supply circuit shown

below.

Note: A line noise filter must be used to prevent line transients from passing

through power supply. Filter design to be determined by environmental

noise requirements.

– 46 –

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VAC

VDC

IAC

14V

12V

ZD1

100 ~ 200µF/25V

VZD = 14V (1W)

4700 ~ 6800µF/25V

2SD633 (TOSHIBA)

+10%

–5%

2 ~ 3A

6800µF/25V

TR1

Other parameters may be determined by user.

Figure 11-1. Power Supply Reference Circuit

– 47 –

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ELECTRONIC PRODUCTS DIVISION

STAR MICRONICS CO., LTD.

536 Nanatsushinnya, Shimizu, Shizuoka

424-0066 Japan

OVERSEAS SUBSIDIARY COMPANIES

STAR MICRONICS AMERICA, INC.

70-D Ethel Road West, Piscataway, NJ 08854 U.S.A

Tel: 732-572-9512, Fax: 732-572-5095

Tel: 0543-47-0112, Fax: 0543-48-5271

STAR MICRONICS U.K. LTD.

Please access the following URL

Star House, Peregrine Business Park, Gomm Road,

High Wycombe, Bucks, HP 13 7DL, U.K.

Tel: 01494-471111, Fax: 01494-473333

http://www.star-micronics.co.jp/service/sp_sup_e.htm

for the lastest revision of the manual.

– 48 –

1999.05.30

Printed in Japan, 80870185

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