LEXMARK 5000 COLOR JETPRINTER User Manual
5000 and 5700 Color Jetprinter™  
5770 Photo Jetprinter  
4093/4094  
• Table of Contents  
• Start Diagnostics  
• Safety and Notices  
• Trademarks  
• Index  
• Manuals Menu  
Lexmark and Lexmark with diamond  
design are trademarks of Lexmark  
International, Inc., registered in the  
United States and/or other countries.  
4093/4094  
Table of Contents  
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix  
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x  
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1  
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1  
Lights and Buttons (5770) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2  
Operator Panel and Menu (5770) . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3  
Resolution and Print Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5  
Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5  
Maintenance Approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5  
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6  
‘Diagnostic Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1  
Start. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1  
Error Indicator Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
Power-On Self Test (POST) Sequence . . . . . . . . . . . . . . . . . . . 2-3  
Power-On Self Test (POST) Sequence (5770) . . . . . . . . . . . . . . 2-3  
POST Symptom Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4  
Symptom Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5  
Service Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8  
First Print Line Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8  
Maintenance Station Service Check . . . . . . . . . . . . . . . . . . . . . . 2-9  
Operator Panel Service Check (5770) . . . . . . . . . . . . . . . . . . . . 2-10  
Operator Panel Display Service Check . . . . . . . . . . . . . . . . . . . 2-11  
Paper Feed Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12  
Paper Path Service Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14  
Parallel Port Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14  
Photo Controller Service Check . . . . . . . . . . . . . . . . . . . . . . . . 2-15  
Power Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16  
Print Quality Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17  
Transport Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19  
Diagnostic Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1  
Paper Pick Assembly Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1  
End of Forms (EOF)Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5  
Test Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6  
Repair Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1  
Handling ESD-Sensitive Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1  
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2  
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Removal Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2  
Releasing Plastic Latches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2  
Base Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3  
Carrier Belt Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3  
Carrier Frame Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . 4-4  
Carrier Transport Motor Removal . . . . . . . . . . . . . . . . . . . . . . . . .4-4  
Covers (Complete) Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5  
Cover (Center) Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6  
Encoder Card Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6  
Encoder Strip Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7  
EOF Flag Assembly and Holder Removal . . . . . . . . . . . . . . . . . .4-7  
Exit Drive Belt Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8  
Exit Roller Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8  
Gear Plate Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9  
Gutter Pad Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9  
Large Feed Roll Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9  
Maintenance Station Assembly Removal . . . . . . . . . . . . . . . . . .4-10  
Maintenance Wipers and Caps Removal . . . . . . . . . . . . . . . . . .4-10  
Mid-Frame Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . .4-10  
Paper Feed Motor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11  
Paper Pick Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . .4-11  
Photo Controller Assembly Removal . . . . . . . . . . . . . . . . . . . . .4-11  
Printhead Cable and Cradle Removal . . . . . . . . . . . . . . . . . . . .4-12  
Printhead Carrier Assembly Removal . . . . . . . . . . . . . . . . . . . .4-13  
Printhead Rubber Backer Removal . . . . . . . . . . . . . . . . . . . . . .4-14  
Sheet Feeder Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15  
Small Feed Roller Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15  
Star Roller Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15  
System Board Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15  
Connector Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1  
System Board Connectors (5000, 5700) . . . . . . . . . . . . . . . . . . . . . .5-1  
System Board Connectors (5770) . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2  
Photo Controller Board Connectors (5770) . . . . . . . . . . . . . . . . . . . 5-3  
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1  
Lubrication Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1  
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Parts Catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1  
How To Use The Parts Catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1  
Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2  
Frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4  
Paper Feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6  
Electronics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8  
Carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10  
Carrier Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12  
Sheet Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14  
Maintenance Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16  
Photo Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18  
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X-1  
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Preface  
This manual is divided into the following chapters:  
1. General Information contains a general description of the  
printer and the maintenance approach used to repair it. Special  
tools and test equipment are listed in this chapter, as well as  
general environmental and safety instructions.  
2. Diagnostic Information contains an error indicator table,  
symptom tables, and service checks used to isolate failing field  
replaceable units (FRUs).  
3. Diagnostic Aids contains tests and checks used to locate or  
repeat symptoms of printer problems.  
4. Repair Information provides instructions for making printer  
adjustments and removing and installing FRUs.  
5. Connector Locations uses illustrations to identify the  
connector locations and test points on the printer.  
6. Preventive Maintenance contains the lubrication specifications  
and recommendations to prevent problems.  
7. Parts Catalog contains illustrations and part numbers for  
individual FRUs.  
Preface vii  
 
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Safety Information  
• This product is designed, tested and approved to meet strict  
global safety standards with the use of specific Lexmark  
components. The safety features of some parts may not always  
be obvious. Lexmark is not responsible for the use of other  
replacement parts.  
• The maintenance information for this product has been  
prepared for use by a professional service person and is not  
intended to be used by others.  
• There may be an increased risk of electric shock and personal  
injury during disassembly and servicing of this product.  
Professional service personnel should understand this and take  
necessary precautions.  
Consignes de Sécurité  
• Ce produit a été conçu, testé et approuvé pour respecter les  
normes strictes de sécurité globale lors de l'utilisation de  
composants Lexmark spécifiques. Les caractéristiques de  
sécurité de certains éléments ne sont pas toujours évidentes.  
Lexmark ne peut être tenu responsable de l'utilisation d'autres  
pièces de rechange.  
• Les consignes d'entretien et de réparation de ce produit  
s'adressent uniquement à un personnel de maintenance  
qualifié.  
• Le démontage et l'entretien de ce produit pouvant présenter  
certains risques électriques, le personnel d'entretien qualifié  
devra prendre toutes les précautions nécessaires.  
viii 4093/4094 Service Manual  
     
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Norme di sicurezza  
• Il prodotto è stato progettato, testato e approvato in conformità a  
severi standard di sicurezza e per l’utilizzo con componenti  
Lexmark specifici. Le caratteristiche di sicurezza di alcune  
parti non sempre sono di immediata comprensione. Lexmark  
non è responsabile per l’utilizzo di parti di ricambio di altri  
produttori.  
• Le informazioni riguardanti la manutenzione di questo prodotto  
sono indirizzate soltanto al personale di assistenza autorizzato.  
• Durante lo smontaggio e la manutenzione di questo prodotto, il  
rischio di subire scosse elettriche e danni alla persona è più  
elevato. Il personale di assistenza autorizzato, deve, quindi,  
adottare le precauzioni necessarie.  
Sicherheitshinweise  
• Dieses Produkt und die zugehörigen Komponenten wurden  
entworfen und getestet, um beim Einsatz die weltweit gültigen  
Sicherheitsanforderungen zu erfüllen. Die sicherheitsrelevanten  
Funktionen der Bauteile und Optionen sind nicht immer  
offensichtlich. Sofern Teile eingesetzt werden, die nicht von  
Lexmark sind, wird von Lexmark keinerlei Verantwortung oder  
Haftung für dieses Produkt übernommen.  
• Die Wartungsinformationen für dieses Produkt sind  
ausschließlich für die Verwendung durch einen  
Wartungsfachmann bestimmt.  
• Während des Auseinandernehmens und der Wartung des  
Geräts besteht ein zusätzliches Risiko eines elektrischen  
Schlags und körperlicher Verletzung. Das zuständige  
Fachpersonal sollte entsprechende Vorsichtsmaßnahmen  
treffen.  
Safety Information ix  
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Pautas de Seguridad  
• Este producto se ha diseñado, verificado y aprobado para  
cumplir los más estrictos estándares de seguridad global  
usando los componentes específicos de Lexmark. Puede que  
las características de seguridad de algunas piezas no sean  
siempre evidentes. Lexmark no se hace responsable del uso de  
otras piezas de recambio.  
• La información sobre el mantenimiento de este producto está  
dirigida exclusivamente al personal cualificado de  
mantenimiento.  
• Existe mayor riesgo de descarga eléctrica y de daños  
personales durante el desmontaje y la reparación de la  
máquina. El personal cualificado debe ser consciente de este  
peligro y tomar las precauciones necesarias.  
Informações de Segurança  
• Este produto foi concebido, testado e aprovado para satisfazer  
os padrões globais de segurança na utilização de componentes  
específicos da Lexmark. As funções de segurança de alguns  
dos componentes podem não ser sempre óbvias. A Lexmark  
não é responsável pela utilização de outros componentes de  
substituição.  
• As informações de segurança relativas a este produto  
destinam-se a profissionais destes serviços e não devem ser  
utilizadas por outras pessoas.  
• Risco de choques eléctricos e ferimentos graves durante a  
desmontagem e manutenção deste produto. Os profissionais  
destes serviços devem estar avisados deste facto e tomar os  
cuidados necessários.  
x 4093/4094 Service Manual  
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Informació de Seguretat  
• Aquest producte està dissenyat, comprovat i aprovat per tal  
d'acomplir les estrictes normes de seguretat globals amb la  
utililització de components específics de Lexmark. Les  
característiques de seguretat d'algunes peces pot ser que no  
sempre siguin òbvies. Lexmark no es responsabilitza de l'us  
d'altres peces de recanvi.  
• La informació pel manteniment d’aquest producte està  
orientada exclusivament a professionals i no està destinada a  
ningú que no ho sigui.  
• El risc de xoc elèctric i de danys personals pot augmentar  
durant el procés de desmuntatge i de servei d’aquest producte.  
El personal professional ha d’estar-ne assabentat i prendre les  
mesures convenients.  
Safety Information xi  
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xii 4093/4094 Service Manual  
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1. General Information  
TM  
The Lexmark 5000 Color Jetprinter and Lexmark 5700 Color  
Jetprinter are personal, near laser-quality inkjet printers. The print  
cartridge contains single-unit customer-replaceable supply items.  
Dual printheads provide color and true black printing without  
changing printheads. The black cartridge has a total of 208 nozzles  
and the photo cartridge has a total of 192 nozzles. Either the black  
or the photo cartridge is installed on the right. The color cartridge  
has a total of 192 nozzles and installs on the left. The printer is  
capable of printing in two directions.  
The Lexmark Photo Jetprinter 5770 printer is a general purpose  
printer that provides high quality text and photos. The 5770 can be  
used without a computer to print photos or connected to a computer.  
When connected to a computer the printer performs the same as a  
5700.  
Models  
4094 - (S01, S02)  
4093 - (S01, S02)  
4093 - (S04)  
General Information 1-1  
     
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Lights and Buttons (5770)  
The printer has two sets of lights and buttons:  
• One set is located at the bottom left-hand corner of the printer,  
on the operator panel.  
• The other set is located at the top of the printer and includes the  
Paper Status light and Paper Feed button.  
Paper Status Light  
Paper Feed Button  
Operator Panel  
Busy Light  
1-2 Service Manual  
 
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Operator Panel and Menu (5770)  
Using the Operator Panel  
The operator panel, on the front left side of the printer, has a 2-line  
by 16-character liquid crystal display (LCD), five buttons and one  
indicator light.  
Operator  
Panel  
Display  
Busy Light  
Select  
Menu  
Print  
Cancel  
Print All  
Index  
Operator Panel Busy Light  
On  
A camera card is installed and the printer is ready to print.  
A camera card is not installed.  
Off  
Blinking  
The printer is busy.  
General Information 1-3  
 
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Operator Panel Buttons  
Menu  
Used to scroll through the Menus.  
Select  
Used to select menu item - An asterisk (*) indicates an  
item is selected.  
Print  
Used to print a photo - Press and hold this button to  
cancel print when the light is blinking.  
Index  
Print All  
Used to print an index page containing small images of all  
photos on the camera card.  
Used to print all photos on the camera card.  
Paper Status Light  
Paper Feed Button  
Paper Status Light (All Models)  
Off  
Ready to print.  
On Solid  
Blinking  
Printing or feeding media through the printer.  
Out of paper or printer error  
Paper Feed Button (All Models)  
Clears a paper jam or loads paper when there is a paper out  
condition.  
1-4 Service Manual  
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Resolution and Print Speed  
600 X 300 Draft  
600 X 600 Letter Quality  
1200 X 1200 Ultra High Quality  
600 X 300 Draft  
600 X 600 Letter Quality  
1200 X 1200 Ultra High Quality  
3 page/minute Draft  
8 page/minute Draft  
Power Consumption  
• Less than 10 Watts - power off and power to the printer  
• Less than 10 Watts - Idle Mode (power on - not printing)  
• Less than 15 Watts - Printing (average)  
• Less than 25 Watts - Printing (peak)  
Maintenance Approach  
The diagnostic information in this manual leads you to the correct  
field replaceable unit (FRU) or part. Use the error indicator charts,  
symptom index, service checks, and diagnostic aids to determine  
the symptom and repair the failure. Begin with “Start” on page 2-1.  
This printer can be serviced without being connected to a host  
computer. The user is directed, in the Printer Control program, to  
perform the head to head and bidirectional alignment adjustments  
after replacing a print cartridge.  
After you complete the repair, perform tests as needed to verify the  
repair.  
General Information 1-5  
     
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Abbreviations  
CSU  
EOF  
ESD  
FRU  
HV  
Customer Setup  
End of Forms  
Electrostatic Discharge  
Field Replaceable Unit  
High Voltage  
LED  
LV  
Light-Emitting Diode  
Low Voltage  
NVRAM Nonvolatile Random Access Memory  
OEM  
POST  
V ac  
Original Equipment Manufacturer  
Power-On Self Test  
Volts alternating current  
Volts direct current  
V dc  
1-6 Service Manual  
 
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2. Diagnostic Information  
Use the error indicator table, symptom tables, service checks, and  
diagnostic aids to determine the failing part.  
Start  
Service error indications show as a series of flashes of the Paper  
Status light. There is a pause between each series of flashes. If your  
printer has an error indication, locate the series of flashes in the  
“Error Indicator Table” on page 2-2 and take the indicated action.  
Unplug the printer to clear the error indicator.  
If an error indicator appears, go to the error indicator table and take  
the indicated action for that error. Run the “Test Page” on page 3-6.  
If no error appears, go to “Power-On Self Test (POST) Sequence” on  
page 2-3.  
Diagnostic Information 2-1  
   
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Error Indicator Table  
81  
Go to the “Transport Service Check” on page 2-18.  
2
93  
89  
90  
Replace the system board.  
3
Go to the “Transport Service Check” on page 2-18.  
4
5
Check the carrier for obstruction or binds. If no  
obstruction or bind, replace the system board.  
64-78  
83  
Replace the system board.  
Replace the system board.  
Replace the system board.  
6, 7  
8
79  
9, 10  
12  
92  
Replace the printhead. If problem remains, replace  
the printhead cable.  
95  
The printer has received an invalid resolution setting  
from the user’s application. Change the resolution in  
the application and turn the printer off and on to reset  
the condition. Refer to “Resolution and Print Speed”  
on page 1-5.  
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Power-On Self Test (POST) Sequence  
Plug the printer in and check for a correct POST operation by  
observing the following:  
1. The Paper Status light comes on and goes off.  
2. The carrier moves over the maintenance station and seals the  
printheads.  
3. The paper feed gears turn.  
4. All motors stop.  
If your printer completes POST with no errors, go to the “Symptom  
Tables,” on page 2-5, locate the symptom and take the indicated  
action.  
If your printer does not complete POST, locate the symptom in the  
following table and take the indicated action.  
Power-On Self Test (POST) Sequence (5770)  
Plug the printer in and check for a correct post operation by  
observing the following:  
1. The Paper Status light comes on and goes off.  
2. The operator panel Busy light comes on and then goes off.  
3. The operator panel displays two rows of diamonds.  
4. The carrier moves over the maintenance station and seals the  
printheads.  
5. The paper feed gears turn.  
6. All motors stop, and Ready appears in the display.  
Diagnostic Information 2-3  
       
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POST Symptom Table  
No motors run  
Go to the “Power Service Check” on page 2-15.  
Go to the “Paper Feed Service Check” on page 2-11.  
Paper feed  
gears do not  
turn  
Carrier does not Go to the “Transport Service Check” on page 2-18.  
move  
Carrier slams  
side frame  
Go to the “Transport Service Check” on page 2-18.  
No Paper Status Replace the system board.  
light  
Blank Display  
(5770)  
Go to the “Operator Panel Display Service Check (5770)”  
on page 2-10.  
All Diamonds  
displayed after  
POST (5770)  
Go to the “Operator Panel Display Service Check (5770)”  
on page 2-10  
Display difficult  
to read (5770)  
Go to the “Operator Panel Display Service Check (5770)”  
on page 2-10.  
Display OK,  
Buttons do not  
function (5770)  
Go to the “Operator Panel Button Service Check (5770)”  
on page 2-10.  
One or more  
buttons do not  
function (5770)  
Go to the “Operator Panel Button Service Check (5770)”  
on page 2-10.  
2-4 Service Manual  
   
4093/4094  
Symptom Tables  
Locate the symptom in the following tables and take the appropriate  
action.  
Carrier Transport Problems  
• No carrier movement  
• Slow carrier movement  
• Carrier stops  
Go to the “Transport Service Check”  
on page 2-18.  
• Carrier slams side frame  
Communications Problems  
Printer not communicating with  
host computer (All models except  
5770  
Check the parallel port connection  
(connector J7). If the connection is  
good, replace the system board  
5770  
Go to the “Parallel Port Service Check  
(5770)” on page 2-13.  
Maintenance Station Problems  
• Fails to cap the printhead  
• Fails to clean the printhead  
Go to the “Maintenance Station  
Service Check” on page 2-9.  
Paper Feed Button and Paper Status Light Problems  
Paper Feed button does not  
operate  
Replace the system board.  
Replace the system board.  
Paper Status light does not come  
on  
Diagnostic Information 2-5  
           
4093/4094  
Photo Controller Problems (5770)  
Prints from a PC but does not  
print from a flash card.  
Go to the “Photo Controller Service  
Check (5770)” on page 2-14.  
Prints from a Flash Card but does  
not print from a PC.  
Paper Feed Problems  
Paper fails to stop at first print line  
Go to the “First Print Line Service  
Check” on page 2-8.  
• Fails to pick paper  
• Picks more than one sheet of  
paper  
Go to the “Paper Feed Service Check”  
on page 2-11.  
• Picks paper but fails to feed  
• Paper jams  
• Paper fails to exit  
• Noisy paper feed  
Paper skews  
Go to the “Paper Path Service Check”  
on page 2-13.  
Power Problems  
No power in printer  
Go to the “Power Service Check” on  
page 2-15.  
2-6 Service Manual  
   
4093/4094  
Print Quality Problems  
• Voids in characters  
• Light print  
Go to the “Print Quality Service  
Check” on page 2-16.  
• Prints off the page  
• Fuzzy print  
• Carrier moves but does not print  
• Printhead drying prematurely  
• Vertical alignment off  
• Excessive ink flow (Flooding)  
• Horizontal banding  
• Ink smearing  
• Vertical streaks on paper  
• Print lines crowded  
Go to the “Paper Feed Service Check”  
on page 2-11.  
Diagnostic Information 2-7  
 
4093/4094  
Service Checks  
First Print Line Service Check  
1
2
3
End-of-Forms  
Flag  
Check the flag for binds or damage.  
Check the sensor for dirt.  
End-of-Forms  
Sensor  
System Board  
Perform the “End of Forms (EOF) Test” on  
page 3-5 to check the end-of-forms sensor on  
the system board.  
4
Paper Pick  
Assembly  
Check the paper pick assembly for binds,  
wear, or damage.  
2-8 Service Manual  
   
4093/4094  
Maintenance Station Service Check  
The maintenance station has two functions:  
1. Cleans the printhead nozzles during the print operation.  
2. Seals the printhead when it is not being used to prevent the  
nozzles from drying.  
1
Maintenance  
Station Assembly  
As the carrier moves to the right over the  
maintenance station, a slot on the bottom of the  
carrier engages a tab on the sled of the  
maintenance station causing the caps to rise and  
seal the printheads. Carrier movement to the left  
will uncap the printheads. The wipers clean the  
printhead nozzles as the carrier leaves the  
maintenance station. The wipers clean the  
printheads only when the carrier is moving to the  
left. There should be no wiping action of the  
printhead nozzles when the carrier is moving to  
the right. After the cleaning operation is complete,  
a tab on the maintenance station engages a tab  
on the carrier, causing the wipers to lower.  
Check the maintenance station for worn or broken  
parts.  
2
3
Wiper  
Cap  
A worn wiper causes degraded print quality just  
after a maintenance cleaning. Check for loose or  
worn wiper.  
A worn cap causes the printhead nozzles to dry  
and clog. Check for loose or worn cap.  
Diagnostic Information 2-9  
 
4093/4094  
Operator Panel Button Service Check (5770)  
1
Operator Panel  
Cable  
If the operator panel display is OK, but the buttons  
do not function, check the operator panel cable for  
continuity and replace the cable if necessary. If the  
symptom remains, replace the photo controller  
board.  
Photo Controller  
Board  
2
3
Operator Panel  
Assembly  
Run the “Button Test (5770)” on page 3-2. If any of  
the buttons fail, replace the operator panel  
assembly.  
Operator Panel  
Assembly  
Check all cables for proper connection. With  
power applied to the printer, disconnect JP1 from  
the photo controller board. Check for +5 V dc at  
JP1-2 on the controller board. If correct, replace  
the operator panel assembly. If incorrect, check for  
+5 V dc at pins P1-28 and P1-29. If voltage is  
correct, replace the photo controller board. If  
incorrect, check for +5 V dc at pins J9-28 and  
J9-29 on the system board. If correct, replace the  
system board to photo controller board cable. If  
the voltage at J9 is incorrect, replace the system  
board.  
Photo Controller  
Board  
System Board to  
Photo Controller  
Board Cable  
System Board  
Operator Panel Display Service Check (5770)  
1
Operator Panel  
Assembly  
If the operator panel is blank and the printer  
completes POST, voltage is not getting to the  
operator panel. Trace the +5 V dc line to the  
operator panel and replace the failing part. Trace  
+5 V dc at pins JP1-2, P1-28 and P1-29 on the  
photo controller board and pins J9-28 and J9-29  
on the system board.  
Operator Panel  
Cable  
Photo Controller  
Board  
If all diamonds are displayed after the printer  
completes POST, check the operator panel cable  
for continuity and replace the cable if necessary. If  
the symptom remains, replace the photo controller  
board.  
System Board to  
Photo Controller  
Board Cable  
Run the “LCD Test (5770),” on page 3-2. If the test  
does not show all PELS, replace the operator  
panel assembly.  
2-10 Service Manual  
   
4093/4094  
Paper Feed Service Check  
If your printer does not have paper jams, continue with the service  
check. If your printer does have a paper jam problem, examine it for  
the following before you begin the service check:  
• Check the entire paper path for obstructions.  
• Be sure there is not too much paper in the sheet feeder.  
• Be sure the correct type of paper is being used.  
• Check for static in the paper.  
1
System Board  
With (J6) disconnected and power on, check for  
+30 V dc between (J6-1) and ground, on the  
system board. If the voltage is not present, check  
for motor pins shorted to the motor housing. If you  
find a shorted pin, replace the motor. If you still  
have a failure after replacing the motor, replace  
the system board.  
Diagnostic Information 2-11  
   
4093/4094  
2
Paper Feed Motor A noisy or chattering motor or a motor that fails to  
turn, can be caused by:  
• An open or short in the motor  
• An open or short in the motor driver on the  
system board  
• A bind in the paper feed mechanism  
With the paper feed motor cable disconnected  
from the system board, check for 5 to 10 ohms  
between pin 1 and 4 on the motor cable.  
If the reading is incorrect, replace the motor.  
Check for motor pins shorted to the motor  
housing. If you find a shorted pin, replace the  
motor. If the failure remains, replace the system  
board.  
Although the paper feeds in a forward direction  
only, the paper feed motor turns in two directions.  
If the paper feed motor turns in one direction only,  
replace the system board.  
Binds in the paper feed motor or gear train can  
cause intermittent false paper jam errors. Remove  
the paper feed motor and check the shaft for  
binds. Also check for loose or worn motor gear.  
3
4
Gears  
Check for binds in the gear train and paper feed  
mechanism by rotating the large feed roll by hand.  
If you notice a bind, isolate it by removing one of  
the small idler gears on the inside of the left side  
frame. Replace any worn or binding gears or  
rollers.  
Paper Path  
Perform the “Paper Path Service Check” on  
page 2-13, starting at Step 1.  
2-12 Service Manual  
4093/4094  
Paper Path Service Check  
Examine the printer for the following before you begin this service  
check:  
• Check the entire paper path for obstructions.  
• Be sure the paper guides are not worn or broken and are  
positioned against the paper without binding or buckling the  
paper.  
• Be sure the correct type of paper is being used.  
• Be sure the printer is installed on a flat surface.  
1
2
3
Large and Small  
Feed Rollers  
Check for wear and binds.  
Check for damage.  
Small Feed Roller  
Springs  
Exit Roller  
Star Rollers  
Exit Drive Belt  
Check for wear and binds.  
4
5
Sheet Feeder  
Check the following for wear or damage:  
• Paper pick assembly  
• All parts inside the left and right edge guides.  
End-of-Forms  
Flag & Spring  
Check for binds or damage.  
Parallel Port Service Check (5770)  
1
Parallel Port  
Run a test page to be sure the printer can print.  
Run the “Parallel Port Wrap Test (5770)” on  
page 3-3  
Diagnostic Information 2-13  
     
4093/4094  
Photo Controller Service Check (5770)  
If the printer prints from a PC, but does not print from a Flash Card,  
or the printer prints from a Flash Card but does not print from a PC,  
continue with this service check.  
1
Photo Controller  
Board  
Disconnect the photo controller assembly from the  
printer by removing the photo controller cable from  
the system board. Run a “Test Page” on page 3-6.  
If the printer prints correctly, continue with this  
service check. If the printer has a print quality  
problem, go to the “Print Quality Service Check”  
on page 2-16.  
Run the “CompactFlash Test (5770)” on page 3-3  
and the “SmartMedia Test (5770)” on page 3-3.  
If either test fails, replace the photo controller  
board.  
Run the “Parallel Port Wrap Test (5770)” on  
page 3-3. If the test fails, replace the photo  
controller board.  
Run the “DRAM Test (5770)” on page 3-4 and the  
“SRAM Test (5770)” on page 3-4. If the test fails,  
replace the photo controller board.  
2
System Board  
Check the system board to photo controller board  
cable connections.  
System Board to  
Photo Controller  
Board Cable  
Check for +5 V dc at pins P1-28 and P1-29 on the  
photo controller board. If incorrect, check the  
system board to photo controller board cable for  
continuity and replace the cable if necessary. If the  
symptoms remains, replace the photo controller  
board.  
Photo Controller  
Board  
2-14 Service Manual  
 
4093/4094  
Power Service Check  
1
Power Supply  
Disconnect the power connector from the system  
board at (J4) and check the following voltages on  
the power supply cable:  
J4-3 to GND = +30 V dc  
If you do not have correct voltage, replace the  
power supply. Be sure to unplug the printer before  
you reconnect the power connector (J4) to the  
system board.  
2
3
Printhead Cable  
Parallel Cable  
Encoder Card  
Unplug the printer. Disconnect one of the  
printhead cables and re-plug the printer. Look for a  
symptom change. Check the failing part for shorts  
and replace as necessary. Repeat this procedure  
for the parallel cable and the encoder card.  
Photo Controller  
Board (5770)  
Remove the camera card from the camera card  
slot. Unplug the printer. Remove the photo  
controller assembly and disconnect the photo  
controller to system board cables. Re-plug the  
printer and look for a symptom change and  
replace the failing part.  
Photo Controller  
Operator Panel  
(5770)  
Unplug the printer and re-plug the photo controller  
cables. Disconnect the operator panel. Re-plug  
the printer and look for a symptom change and  
replace the failing part.  
4
System Board  
If the symptom has not changed, replace the  
system board.  
Diagnostic Information 2-15  
   
4093/4094  
Print Quality Service Check  
FRU  
Action  
1
2
Print Cartridge  
Be sure the printer contains good print cartridges.  
Printhead Carrier  
Assembly  
Reseat the printhead cables in the system board  
and check the following parts for wear or damage:  
• Print Cartridge Latch  
• Latch Spring  
• Carrier  
3
System Board  
Printhead Cable  
Rubber Backer  
Perform the “Test Page” on page 3-6. Look for a  
break in the diagonal line of the test pattern. A  
broken line indicates one or more print nozzles are  
not working. Run the test again to verify the  
failure. If there are even breaks in the diagonal line  
similar to the pattern shown, replace the system  
board.  
If there is a single break or random breaks in the  
diagonal line check the following:  
Note: Unplug the printer before cleaning contacts.  
• Check the gold-plated contacts, on the end of  
the cable that connect to the carrier, for dirt and  
wear. Use only a clean dry cloth to clean the  
contacts. Also check the cable for damage. You  
may need to remove the cable from the carrier  
to inspect it.  
• A worn rubber backer results in poor contact  
between the printhead cable and the print  
cartridge. Check the rubber backer for wear.  
• Refer to the test page. The temperature value is  
in Celsius.  
4
Maintenance  
Station  
Intermittent nozzle failures can be caused by worn  
parts in the maintenance station. Perform the  
“Maintenance Station Service Check” on  
page 2-9, then return to this check.  
2-16 Service Manual  
 
4093/4094  
FRU  
Action  
5
Paper Feed  
Ink smudging and smearing can be caused by  
paper problems or problems in the paper feed  
area.  
Check the following:  
• Correct type of paper is being used.  
• Paper for curl or wrinkles.  
• Feed rollers for wear, dirt, or looseness.  
• Gears for wear or binds.  
• Paper path for obstructions.  
6
Transport  
Blurred print and voids can be caused by  
problems in the transport area. Check the  
following:  
• Transport belt for wear and full engagement into  
the carrier grip.  
• Carrier guide rod for wear or dirt.  
• Carrier to carrier frame engagement should be  
lubricated with grease P/N 99A0394.  
Lubricate the carrier guide rod and carrier frame  
on both sides where the two top bearing  
surfaces ride on the frame.  
• Idler pulley parts for wear, damage, or  
looseness.  
• Encoder strip for wear or dirt.  
7
Alignment  
Uneven vertical lines can be adjusted by  
performing the bidirectional alignment. The user is  
directed, through the Printer Control program, to  
perform the head to head and bidirectional printing  
alignments, when replacing a print cartridge.  
5770 - Printhead alignment is also performed at  
the operator panel. The user is instructed to  
perform alignment settings at the operator panel.  
These settings are used to print photos from the  
flash card or an external storage drive.  
Diagnostic Information 2-17  
4093/4094  
Transport Service Check  
1
Transport Motor  
Check the motor for binds, or loose motor pulley.  
Disconnect the transport motor (J5) from the  
system board. Check for 8 to 18 ohms between  
pins 1 and 2 on the motor cable. If the reading is  
incorrect, replace the motor.  
Check for motor pins shorted to the motor  
housing. If you find a pin shorted to the housing,  
replace the motor. If the failure remains, replace  
the system board.  
2
3
System Board  
Disconnect (J5) from the system board and check  
for a pulse of 30 V dc between (J5-2) and ground  
as the printer goes through POST.  
Carrier Guide  
Rod  
Clean the carrier rod.  
Note: Lubricate the rod and the carrier rod bearing  
surface.  
4
5
Transport Belt  
Idler Pulley Parts  
Carrier Frame  
Encoder Strip  
Encoder Card  
Check for worn, loose or broken parts. Check for  
obstructions blocking carrier movement.  
Carrier to carrier frame engagement should be  
lubricated with grease P/N 99A0394.  
Check the encoder strip for wear, dirt and grease.  
Be sure all printhead connectors are fully seated.  
Check the cables for damage.  
Check the encoder card connection.  
6
Printhead Cable  
Be sure all connectors are fully seated. Check the  
cables for damage.  
Printhead Cable  
Guide Strip  
Some early level machines may experience a  
printhead cable popping noise. These machines  
can be identified by checking for a printhead cable  
relief hole in the carrier frame located above the  
maintenance station. If no printhead cable relief  
hole is present, install the printhead cable guide  
and clip.  
2-18 Service Manual  
   
4093/4094  
7
Maintenance  
Station  
A problem with the maintenance station can cause  
carrier movement problems at the right margin. Go  
to the “Maintenance Station Service Check” on  
page 2-9.  
Diagnostic Information 2-19  
4093/4094  
2-20 Service Manual  
4093/4094  
3. Diagnostic Aids  
Paper Pick Assembly Operation  
The paper pick assembly is a paper pick device that generates its  
own normal force which is inherent in the fundamental design of the  
pick arm. If light media is used, the paper pick assembly picks very  
gently; if a heavy media is used, it picks very aggressively.  
The spring pressure of the device is designed so the input torque  
from the motor produces movement about the pivot of the arm  
causing a downward force at the pick roll. The friction between the  
pick roll and the paper produces a frictional locking condition. The  
arm must pivot freely through its full range of motion. If the pick  
assembly is noisy, replace the paper pick assembly.  
Diagnostic Mode (5770)  
To enter the Diagnostic Mode:  
1. Unplug the power supply from the printer.  
2. Press and hold the Index and Print buttons.  
3. Plug the power supply into the printer.  
4. Release the buttons when Diagnostic Menu appears in the  
Operator Panel Display.  
Unplug the power supply from the printer to exit the Diagnostic  
Mode.  
The tests display on the operator panel in the order shown:  
• Code Level  
• LCD  
• Button  
• CompactFlash  
• SmartMedia  
• Parallel Port  
• Controller Port  
• DRAM  
• SRAM  
Diagnostic Aids 3-1  
     
4093/4094  
Code Level (5770)  
Displays the current code level on the Controller Board. Code  
upgrades to the Photo Controller Board can be down loaded from  
either camera card slot or through the parallel port such as an  
external storage drive. Use the following procedure to upgrade the  
code.  
1. With power applied to the printer, insert the camera card  
containing the newer code level in the proper slot.  
2. The message “Upgrading Flash ROM” will appear on the  
display and the busy light will blink.  
3. Wait one minute. If the message “OK! Remove Card & Reset”  
does not appear, unplug the printer.  
4. Replug the printer. The message “Upgrading Flash ROM” will  
appear once again.  
5. Within a minute, the message “OK! Remove Card & Reset” will  
appear.  
6. Remove the camera card from the slot, unplug and replug the  
printer.  
LCD Test (5770)  
To run the LCD Test:  
1. Select LCD Test from the Diagnostic Menu. The LCD test runs  
continually.  
2. Press Cancel to stop the test.  
Button Test (5770)  
To run the Button Test:  
1. Select Button Test from the Diagnostic Menu. With no buttons  
pressed, OP (Open) appears several times on the display.  
2. Press each button, one at a time, and a CL (Closed) appears in  
place of the OP. This checks the proper operation of each of the  
buttons.  
3. Press Print and Print All together to stop the test.  
3-2 Service Manual  
         
4093/4094  
CompactFlash Test (5770)  
The purpose of this test is to check the connection between a  
CompactFlash camera card and the Photo Controller Board. This  
test performs a write, read and erase to the camera card.  
To run the CompactFlash Test:  
1. Insert a camera card into the CompactFlash slot (top slot).  
2. Select CompactFlash from the Diagnostic Menu.  
3. Press Cancel to stop the test.  
Upon completion of the test, a Pass or Fail message appears in the  
display.  
SmartMedia Test (5770)  
The purpose of this test is to check the connection between a  
SmartMedia camera card and the Photo Controller Board. This test  
performs a write, read erase to the camera card.  
To run the SmartMedia Test:  
1. Insert a camera card into the SmartMedia slot (bottom slot).  
2. Select SmartMedia from the Diagnostic Menu.  
3. Press Cancel to stop the test.  
Upon completion of the test, a Pass or Fail message appears in the  
display.  
Parallel Port Wrap Test (5770)  
This test performs a wrap around test between the printer parallel  
port and the parallel port test connector.  
To run the Parallel Port Test:  
1. Install a parallel wrap plug (P/N 1319128) in the parallel port.  
2. Select Parallel Port from the Diagnostic Menu.  
3. Press Cancel to stop the test.  
Upon completion of the test, a Pass or Fail message appears in the  
display.  
Diagnostic Aids 3-3  
           
4093/4094  
Controller Port Test (5770)  
This test is not used for servicing the printer.  
DRAM Test (5770)  
The purpose of this test is to check the validity of DRAM on the  
Photo Controller Board. The test writes patterns of data to DRAM to  
verify that each bit in memory can set and read correctly.  
To run the DRAM Test:  
1. Select DRAM Test from the Diagnostic Menu.  
2. Press Cancel to stop the test.  
Upon completion of the test, a Pass of Fail message appears in the  
display.  
SRAM Test (5770)  
The purpose of this test is to check the validity of SRAM on the  
Photo Controller Board. The test writes patterns of data to SRAM to  
verify that each bit in memory can set and read correctly.  
To run the SRAM Test:  
1. Select SRAM Test from the Diagnostic Menu.  
2. Press Cancel to stop the Test.  
Upon completion of the test, a Pass or Fail message appears in the  
display.  
3-4 Service Manual  
         
4093/4094  
End of Forms (EOF) Test  
This test checks the EOF sensor on the system board.  
During the test, the Busy light remains on and shows the EOF  
sensor status as follows:  
• On - paper is in sensor  
• Off - paper is not in sensor  
To run the test:  
1. Remove all paper and turn the printer on.  
2. Insert a single sheet of paper into the sheet feeder until the EOF  
flag activates and the Busy light comes on. The paper feeds  
momentarily.  
3. Press the Paper Feed button and the paper ejects as the Busy  
light turns off.  
4. If the preceding steps fail to occur, the sensor is bad. Replace  
the system board.  
Diagnostic Aids 3-5  
     
4093/4094  
Test Page  
This test prints the test page.  
To run a complete test page of black and color patterns, be sure the  
print cartridges are in good condition. Install a black print cartridge in  
the right side of the printhead cradle and a color print cartridge in the  
left side.  
To enter the test:  
1. Unplug the printer.  
2. Ensure the manual paper slot is empty.  
3. To start the test, press and hold the Paper Feed button while  
plugging the printer in. Release the button when the printer  
completes POST.  
The test page contains the following:  
• Code level and date  
• Current Celsius temperature  
• Nozzle test pattern for both cartridges  
• Purge test for both cartridges  
• Text (printer model)  
• Paper test results  
3-6 Service Manual  
   
4093/4094  
4. Repair Information  
This chapter explains how to make adjustments to the printer and  
how to remove defective parts.  
Note: Read the following before handling electronic parts. When  
working on the printer, always unplug the printer from the electrical  
outlet. High voltage is present in the power supply as long as it is  
plugged into the electrical outlet.  
Handling ESD-Sensitive Parts  
Many electronic products use parts that are known to be sensitive to  
electrostatic discharge (ESD). To prevent damage to ESD-sensitive  
parts, follow the instructions below in addition to all the usual  
precautions, such as turning off power before removing logic boards:  
• Keep the ESD-sensitive part in its original shipping container  
(a special “ESD bag”) until you are ready to install the part into the printer.  
• Make the least-possible movements with your body to prevent an increase  
of static electricity from clothing fibers, carpets, and furniture.  
• Put the ESD wrist strap on your wrist. Connect the wrist band to the system  
ground point. This discharges any static electricity in your body to the  
printer.  
• Hold the ESD-sensitive part by its edge connector shroud (cover); do not  
touch its pins. If you are removing a pluggable module, use the correct tool.  
• Do not place the ESD-sensitive part on the printer cover or on a metal  
table; if you need to put down the ESD-sensitive part for any reason, first  
put it into its special bag.  
• Printer covers and metal tables are electrical grounds. They increase the  
risk of damage because they make a discharge path from your body  
through the ESD-sensitive part. (Large metal objects can be discharge  
paths without being grounded.)  
• Prevent ESD-sensitive parts from being accidentally touched by other  
personnel. Install printer covers when you are not working on the printer,  
and do not put unprotected ESD-sensitive parts on a table.  
• If possible, keep all ESD-sensitive parts in a grounded metal cabinet  
(case).  
• Be careful in working with ESD-sensitive parts when cold weather heating  
is used because low humidity increases static electricity.  
Repair Information 4-1  
     
4093/4094  
Adjustments  
The user is directed, in the Printer Control program, to perform the  
head to head and bidirectional alignment adjustments after replacing  
a print cartridge.  
Removal Procedures  
The following procedures are arranged according to the name of the  
printer part discussed. Unplug the power cord before removing any  
parts.  
Releasing Plastic Latches  
Many of the parts are held in place with plastic latches. The latches  
break easily; release them carefully. To remove such parts, press the  
hook end of the latch away from the part to which it is latched.  
4-2 Service Manual  
       
4093/4094  
Base Assembly Removal  
1. Remove the four screws from the left and right exit tray bases  
and remove the bases. During reassembly, do not overtighten  
the screws, as this may strip the plastic.  
2. Remove the accent cover.  
3. Remove the three screws from the left and right covers.  
4. Remove the center cover.  
5. Disconnect the power connector at the system board.  
6. Remove the three screws securing the carrier frame to the base  
cover.  
7. Slide the printer off the base cover.  
Carrier Belt Removal  
1. Remove the four screws from the left and right exit tray bases  
and remove the bases. During reassembly, do not overtighten  
the screws, as this may strip the plastic.  
2. Remove the accent cover.  
3. Remove the three screws from the left and right covers.  
4. Remove the center cover.  
5. Remove the printhead carrier assembly.  
6. Push the idler pulley to the right to release the tension on the  
belt and remove the belt.  
Note: When reinstalling the carrier belt, place the carrier at the  
center position between the tabs on either end of the belt.  
Repair Information 4-3  
       
4093/4094  
Carrier Frame Assembly Removal  
1. Remove all covers, refer to “Covers (Complete) Removal” on  
page 4-5.  
2. Disconnect the power connector at the system board.  
3. Remove the sheet feeder assembly.  
4. Remove the three screws securing the carrier frame to the base  
cover. During reassembly, do not overtighten the screws, as this  
may strip the plastic.  
5. Slide the printer off the base cover.  
Carrier Transport Motor Removal  
1. Remove all covers (except the left and base covers), refer to  
“Covers (Complete) Removal” on page 4-5.  
2. Disconnect the transport motor connector from the system  
board.  
3. Remove the belt from the transport motor pulley.  
4. Remove the two screws securing the transport motor to the  
carrier frame and remove the motor. Note the routing of the  
motor cable. During reassembly, do not overtighten the screws,  
as this may strip the plastic.  
4-4 Service Manual  
       
4093/4094  
Covers (Complete) Removal  
1. Open the access door and remove the accent cover.  
2. Remove one screw from the left cover and two screws from the  
right cover.  
3. Lay the machine on its back and remove the four screws from  
the left and right tray bases.  
4. Remove the tray bases and the exit tray.  
5. Unlatch the right cover from the base, slide it to the right and  
remove the right cover.  
6. Remove the center cover.  
7. Unlatch the left cover from the base, slide it to the left and  
remove the left cover.  
Repair Information 4-5  
     
4093/4094  
Cover (Center) Removal  
1. Remove the two screws from the right exit tray base and remove  
the base. During reassembly, do not overtighten the screws, as  
this may strip the plastic.  
2. Open the access door and lift the top edge of the accent cover  
pulling forward to remove.  
3. Remove the two screws from the right cover and press and  
unlatch the cover from the bottom.  
4. Remove the right cover by sliding it to the right.  
5. Remove the screw that secures the center cover and remove  
the center cover.  
Encoder Card Removal  
1. Remove all covers (except the base), refer to “Covers  
(Complete) Removal” on page 4-5.  
2. Remove the printhead carrier assembly.  
3. Disconnect the printhead cable from the encoder card.  
4. Remove the screw from the encoder card and remove the card.  
4-6 Service Manual  
       
4093/4094  
Encoder Strip Removal  
1. Remove all covers (except the base), refer to “Covers  
(Complete) Removal” on page 4-5.  
2. Remove the printhead carrier assembly.  
3. Gently release the tension on the encoder strip by flexing the  
encoder strip tensioner and remove the encoder strip.  
Note: When reinstalling the encoder strip, make sure the ends of  
the strip are centered in their mounting notches and the strip does  
not bind in the encoder card on the carrier.  
Install the strip with the graphic on the left side as follows:  
•
Arrow Up −  
“F” Down  
EOF Flag Assembly and Holder Removal  
1. Remove all covers, refer to “Covers (Complete) Removal,” on  
page 4-5.  
2. Remove the carrier frame assembly.  
3. Remove the encoder strip.  
4. Remove the system board.  
5. Remove the sheet feeder assembly.  
6. Remove the four small feed roll springs.  
7. Push the locking tabs [A] to the rear and pull the holder down  
and out of the carrier frame.  
Repair Information 4-7  
       
4093/4094  
Exit Drive Belt Removal  
1. Remove all covers, refer to “Covers (Complete) Removal,” on  
page 4-5.  
2. Remove the carrier frame assembly.  
3. Remove the two screws from the star roller assembly and  
remove the assembly. Do not overtighten the screws, as this  
may strip the plastic.  
4. Remove the printhead carrier assembly.  
5. Remove the maintenance station.  
6. Unhook the springs from the small feed rollers.  
7. Remove the small feed rollers by unlatching them from the feed  
roller holder.  
8. Remove the mid-frame assembly by pushing it forward from the  
rear and out of the machine.  
9. Remove the right large feed roller bushing.  
10. Remove the large feed roller.  
11. Remove the exit roller assembly.  
12. Replace the exit drive belt.  
Exit Roller Removal  
1. Open the access door.  
2. Remove the two screws from the star roller assembly and  
remove the assembly. Do not overtighten the screws, as this  
may strip the plastic.  
3. Unlatch the right side of the exit roller and remove the exit drive  
belt from the exit roller pulley.  
4. Remove the exit roller.  
4-8 Service Manual  
       
4093/4094  
Gear Plate Removal  
1. Remove all covers, refer to “Covers (Complete) Removal,” on  
page 4-5.  
2. Unplug the power connector.  
3. Remove the frame from the base and remove the carrier.  
4. Remove the maintenance station assembly.  
5. Remove the mid-frame assembly.  
6. Unplug the paper feed motor.  
7. Remove the two screws from the gear plate and remove the  
gear plate. During reassembly, do not overtighten the screws,  
as this may strip the plastic.  
Gutter Pad Removal  
1. Open the access door and remove the accent cover.  
2. Remove the right exit tray base.  
3. Remove the accent cover.  
4. Remove the right cover.  
5. Remove the maintenance station.  
6. Remove the gutter pad.  
Large Feed Roll Removal  
1. Remove all covers, refer to “Covers (Complete) Removal” on  
page 4-5.  
2. Remove the carrier frame assembly from the base.  
3. Remove the printhead carrier assembly.  
4. Remove the maintenance station.  
5. Remove the mid-frame assembly.  
6. Remove the large feed roller.  
Repair Information 4-9  
           
4093/4094  
Maintenance Station Assembly Removal  
1. Open the access cover.  
2. Remove the accent cover.  
3. Remove the right exit tray base.  
4. Remove the right cover.  
5. Unlatch the two clips at the rear of the maintenance station and  
slide the assembly forward, out of the printer.  
Maintenance Wipers and Caps Removal  
1. Open the access cover.  
2. Push the carrier to the left away from the maintenance station.  
3. Remove the accent cover.  
4. Remove the right exit tray base.  
5. Remove the right cover.  
6. Remove the wipers and caps.  
Note: Be sure the wipers are completely seated.  
Mid-Frame Assembly Removal  
1. Remove all covers, refer to “Covers (Complete) Removal” on  
page 4-5.  
2. Remove the carrier frame assembly.  
3. Remove the two screws from the star roller assembly and  
remove the assembly. During reassembly, do not overtighten  
the screws, as this may strip the plastic.  
4. Remove the printhead carrier assembly.  
5. Remove the maintenance station assembly.  
6. Unhook the springs from the small feed rollers.  
7. Remove the small feed rollers by unlatching them from the feed  
roller holder.  
8. Remove the mid-frame assembly.  
4-10 Service Manual  
             
4093/4094  
Paper Feed Motor Removal  
1. Remove the accent cover.  
2. Remove the screws from the left and right covers. During  
reassembly, do not overtighten the screws, as this may strip the  
plastic.  
3. Remove the right and left exit tray bases.  
4. Remove the left, right and center covers.  
5. Disconnect the paper feed motor connector from the system  
board.  
6. Remove the gear plate assembly.  
7. Remove the two screws securing the paper feed motor and  
remove the motor. Note the routing of the motor cable.  
Paper Pick Assembly Removal  
1. Remove all covers (except the base), refer to “Covers  
(Complete) Removal” on page 4-5.  
2. Remove the left and right bezel from the sheet feeder.  
3. Remove the C-clip from the right side of the pick roll shaft.  
4. Pull the pick roll shaft out to the left and remove the paper pick  
assembly. Note the orientation of the paper pick assembly  
spring.  
Photo Controller Assembly Removal (5770)  
1. Remove the two rear screws securing the photo controller base  
to the printer base.  
2. Remove the screw securing the photo controller to the center  
cover.  
3. Unlatch the latch securing the photo controller cover to the rear  
of the printer base.  
4. Slide the photo controller assembly to the left off the printer  
base.  
Note: When replacing the photo controller board, the printing  
alignments will be reset to factory defaults. The user should be  
instructed to perform the “Align Cartridge” procedure to  
optimize photo printing.  
Repair Information 4-11  
           
4093/4094  
Printhead Cable and Cradle Removal  
1. Remove the accent, right and center covers.  
2. Remove the printhead carrier assembly.  
3. Disconnect the printhead cable from the encoder card. Note the  
routing of the cable under the retaining clip on the carrier.  
4. Separate the cradle from the printhead carrier assembly by  
pushing out the cradle latches [A].  
5. Feed the folded end of the printhead cable through the opening  
in the carrier assembly and remove the cable.  
Note: Use the illustration to assemble the carrier parts in the correct  
sequence.  
4-12 Service Manual  
   
4093/4094  
Printhead Carrier Assembly Removal  
1. Remove all covers (except the base), refer to “Covers  
(Complete) Removal” on page 4-5.  
2. Unlock the three printhead cable connectors and disconnect the  
printhead cable from the system board.  
3. Remove the spring clips from the ends of the carrier guide rod  
and move the carrier to the left.  
4. Remove the carrier guide rod by sliding it to the left.  
5. Remove the carrier assembly by lifting upward, taking care to  
clear the encoder strip before pulling the carrier assembly out.  
6. Disconnect the carrier belt.  
7. When installing the belt, connect the carrier between the two  
raised markers on the belt.  
Repair Information 4-13  
   
4093/4094  
Printhead Rubber Backer Removal  
1. Remove all covers, refer to “Covers (Complete) Removal” on  
page 4-5.  
2. Remove the printhead carrier assembly.  
3. Separate the cradle from the printhead carrier assembly by  
pushing out the cradle latches [A].  
4. Remove the rubber backer and paper deflector from under the  
printhead carrier cable.  
Note: Use the illustration to assemble the carrier parts in the correct  
sequence.  
4-14 Service Manual  
   
4093/4094  
Sheet Feeder Removal  
1. Remove all covers (except the base), refer to “Covers  
(Complete) Removal” on page 4-5.  
2. Remove the three screws that secure the sheet feeder to the  
carrier frame. During reassembly, do not overtighten the screws,  
as this may strip the plastic.  
3. Remove the sheet feeder assembly.  
Note: Take note of the routing of all cables.  
Small Feed Roller Removal  
1. Remove all covers, refer to “Covers (Complete) Removal” on  
page 4-5.  
2. Remove the sheet feeder assembly.  
3. Unhook the small feed roller springs and remove the rollers by  
pushing them down at the rear.  
Star Roller Removal  
1. Open the access door.  
2. Remove the two screws from the star roller assembly and  
remove the assembly. During reassembly, do not overtighten  
the screws, as this may strip the plastic.  
System Board Removal  
1. Remove all covers (except the base), refer to “Covers  
(Complete) Removal” on page 4-5.  
2. Unlock the three printhead cable connectors and disconnect the  
printhead cables from the system board.  
3. Disconnect the other cables from the system board.  
4. Remove the three screws securing the system board to the  
carrier frame and remove the system board. Note the routing of  
the paper feed motor cable. Pull the EOF flag out of the sensor  
while removing the system board. During reassembly, do not  
overtighten the screws, as this may strip the plastic.  
Repair Information 4-15  
               
4093/4094  
4-16 Service Manual  
4093/4094  
5. Connector Locations  
System Board Connectors (5000, 5700)  
J1  
J2  
J3  
J4  
J5  
J7  
Printhead  
Cable 1  
Printhead  
Cable 2  
Printhead  
Cable 3  
Power  
Connector  
Transpor t  
Motor  
Parallel Port  
SW1  
Paper Feed  
Switch  
S1  
EOF Sensor  
Connector Locations 5-1  
     
4093/4094  
System Board Connectors (5770)  
J1  
J2  
J3  
J4  
J5  
J6  
J9  
Printhead  
Cable 1  
Printhead  
Cable 2  
Printhead  
Cable 3  
Power  
Connector  
Transport  
Motor  
Paper Feed  
Motor  
Photo  
Controller  
Cable  
J10  
Photo  
Controller  
Cable Shield  
SW1  
S1  
Paper Feed  
Switch  
EOF Sensor  
5-2 Service Manual  
   
4093/4094  
Photo Controller Board Connectors (5770)  
J1  
Parallel Port  
J2  
CompactFlash Card  
Operator Panel  
SmartMedia Card  
JP1  
JP2  
P1  
Photo Controller to  
System Board  
Connector Locations 5-3  
   
4093/4094  
5-4 Service Manual  
4093/4094  
6. Preventive Maintenance  
This chapter contains the lubrication specifications. Follow these  
recommendations to prevent problems and maintain optimum  
performance.  
Lubrication Specifications  
Lubricate only when parts are replaced or as needed, not on a  
scheduled basis. Use grease P/N 99A0394 to lubricate the following:  
• All gear mounting studs.  
• The left and right ends of the large feed roller at the side frames.  
• Both ends of the sheet feeder pick roll shaft at the side frames.  
• The carrier to carrier frame engagement.  
• The carrier guide shaft, and carrier guide shaft bearings.  
• Both ends of the exit roller shaft.  
Preventive Maintenance 6-1  
   
4093/4094  
6-2 Service Manual  
4093/4094  
7. Parts Catalog  
How To Use The Parts Catalog  
• SIMILAR ASSEMBLIES: If two assemblies contain a majority of  
identical parts, they are shown on the same list. Common parts  
are shown by one index number. Parts peculiar to one or the  
other of the assemblies are listed separately and identified by  
description.  
• NS: (Not Shown) in the Asm-Index column indicates that the  
part is procurable but is not shown in the illustration.  
• PP: in the Description column indicates the part is available in  
the listed parts packet.  
Parts Catalog 7-1  
   
4093/4094  
Assembly 1: Covers  
7-2 Service Manual  
   
4093/4094  
Assembly 1: Covers  
Asm-  
Index  
Part  
Number  
Units  
Description  
1 -1  
13A3842  
1
Cover, Front Access  
(4093-S01,S04)(4094-S01)  
1
13A3843  
1
Cover, Front Access  
(4093-S02) (4094-S02)  
2
2
2
2
3
4
13A3846  
13A3848  
13A3849  
13A3847  
17A0138  
13A3852  
1
1
1
1
3
1
Cover, Accent (4094-S01)  
Cover, Accent (4093-S01)  
Cover, Accent (4093-S02)  
Cover, Accent (4094-S02)  
Screws, PP  
Cover, Right  
(4093-S01,S04) (4094-S01)  
4
13A3853  
13A3844  
13A3845  
1
1
1
Cover, Right  
(4093-S02) (4094-S02)  
5
Cover, Left  
(4093-S01,S04) (4094-S01)  
5
Cover, Left  
(4093-S02) (4094-S02)  
6
7
13A3856  
13A3854  
1
1
Lens (LED) & Power Button  
Cover, Center  
(4093-S01,S04)(4094-S01)  
7
8
8
13A3855  
13A3840  
13A3841  
1
1
1
Cover, Center  
(4093-S02) (4094-S02)  
Base Asm includes Feet, Gutter Pad  
(4093-S01,S04) (4094-S01)  
Base Asm includes Feet, Gutter Pad  
(4093-S02) (4094-S02)  
9
9
13A3861  
13A3862  
17A0100  
17A0101  
13A3857  
7349594  
1
1
1
1
1
1
Exit Tray Base (L & R) (4093-S01,S04)  
Exit Tray Base (L & R) (4093-S02)  
Exit Tray Asm (4093-S01,S04)  
Exit Tray Asm (4093-S02)  
Gutter Pad  
10  
10  
11  
NS  
NS  
NS  
Plain Package B/M (5000-5700)includes:  
(Carton, Cushion Set, Sealing Tape)  
7350305  
12G0149  
1
1
Plain Package B/M (5770) includes:  
(Carton, Cushion Set, Sealing Tape)  
Packet of 20 Feet  
Parts Catalog 7-3  
                                           
4093/4094  
Assembly 2: Frames  
7-4 Service Manual  
   
4093/4094  
Assembly 2: Frames  
Asm-  
Index  
Part  
Number  
Units  
Description  
2-1  
17A0132  
1
Sheet Feeder Asm  
(4093-S01,S04) (4094-S01)  
1
17A0133  
1
Sheet Feeder Asm  
(4093-S02) (4094-S02)  
2
3
17A0138  
12G0249  
3
1
Screws, PP  
Washers, (packet of 10) ASF Right  
Mounting Screw (PP)  
NS  
NS  
17A0493  
17A0748  
5
5
Printhead Cable Guide Strip & Clip  
Pulley Cuff & Printhead Cable Pad  
Parts Catalog 7-5  
           
4093/4094  
Assembly 3: Paper Feed  
7-6 Service Manual  
   
4093/4094  
Assembly 3: Paper Feed  
Asm-  
Index  
Part  
Number  
Units  
Description  
3-1  
17A0132  
1
Sheet Feeder Asm  
(4093-S01,S04) (4094-S01)  
1
17A0133  
1
Sheet Feeder Asm  
(4093-S02)(4094-S02)  
2
3
17A0106  
17A0104  
17A0138  
17A0108  
17A0111  
17A0138  
17A0107  
17A0136  
13A3840  
1
1
2
1
1
2
1
1
1
Small Feed Roll Asm w/Holder & Flag  
Mid Frame  
4
Bushing, Large Feed Roll (PP)  
Large Feed Roll Asm  
5
6
Exit Roller and Pulley B/M  
Screw, Paper Feed Motor (PP)  
Star Roller Crossbar Asm  
Maintenance Station Asm  
7
8
9
10  
Base Asm, Includes Feet & Gutter Pad  
(4093-S01,S04) (4094-S01)  
10  
13A3841  
1
Base Asm, Includes Feet & Gutter Pad  
(4093-S02) (4094-S02)  
11  
12  
13  
17A0112  
17A0109  
17A0110  
1
1
1
Exit Drive Belt  
Paper Feed Motor Asm with Idler Gear  
Gears Plate Asm without Motor  
Parts Catalog 7-7  
                           
4093/4094  
Assembly 4: Electronics  
7-8 Service Manual  
   
4093/4094  
Assembly 4: Electronics  
Asm-  
Index  
Part  
Number  
Units  
Description  
4-1  
13A4494  
1
.5mm to 1 mm conversion kit for 4093  
(Contains Carrier Asm and System  
Board)  
1
13A4497  
1
.5mm to 1 mm conversion kit for the  
4094 (Contains Carrier Asm and  
System Board)  
1
1
17A0116  
17A0118  
1
1
System Board - See Notice below  
1 mm width (4093-S01, S02)  
System Board - See Notice below  
1 mm width (4094-S01, S02)  
2
3
17A0120  
13A3593  
1
1
Power Connector  
Power Supply, External 100 V  
(4093-S01, S02) (4094-S01, S02)  
3
3
13A3594  
13A3595  
1
1
Power Supply, External 120-127 V  
(4093-S01, S02) (4094-S01, S02)  
Power Supply, External 220-240 V  
(4093-S01, S02) (4094-S01, S02)  
NS  
11B6073  
11B6074  
11B6075  
11B6076  
11B6077  
17A0119  
1
1
1
1
1
1
Power Cable (United Kingdom)  
Power Cable (Europe)  
NS  
NS  
NS  
NS  
NS  
Power Cable (Israel)  
Power Cable (Australia /New Zealand)  
Power Cable (South Africa)  
Cover, System Board  
Cable Notice  
Check the printhead cable connectors to determine the correct  
system board replacement.  
• .5 mm width  
.5 mm cable with 0.625 inch (16 mm) width at connectors  
(J1, J2, J3)  
• 1 mm width  
1 mm cable with 1.25 inch (32 mm) width at connectors  
(J1, J2, J3)  
Parts Catalog 7-9  
                             
4093/4094  
Assembly 5: Carrier  
7-10 Service Manual  
   
4093/4094  
Assembly 5: Carrier  
Asm-  
Index  
Part  
Number  
Units  
Description  
5-1  
17A0139  
1
Printhead Carrier Asm - see “Cable  
Notice” on page 7-9  
1 mm width (4093-S01, S02, S04)  
1
17A0140  
1
Printhead Carrier Asm - see “Cable  
Notice” on page 7-9  
1 mm width (4094-S01, S02)  
3
3
17A0126  
17A0127  
1
1
Encoder Card Asm w/ Thermistor  
(4093-S01, S02, S04)  
Encoder Card Asm w/ Thermistor  
(4094-S01, S02)  
4
5
17A0138  
17A0138  
17A0125  
17A0138  
17A0128  
13A3860  
1
2
1
2
1
1
Screw, Encoder Card Mount (PP)  
Bearing, Carrier (PP)  
6
Carrier Guide Rod  
7
Retainers, Shaft (PP)  
8
Printhead Cartridge Interlock Key B/M  
Garage Asm  
NS  
Parts Catalog 7-11  
               
4093/4094  
Assembly 6: Carrier Transport  
7-12 Service Manual  
   
4093/4094  
Assembly 6: Carrier Transport  
Asm-  
Index  
Part  
Number  
Units  
Description  
6-1  
17A0129  
1
Motor, Carrier Transport Asm &  
Pulley (DC)  
2
3
4
5
6
17A0130  
17A0131  
17A0138  
17A0138  
12G0164  
1
1
1
2
5
Carrier Belt  
Encoder Strip  
Idler Pulley Tension Asm (PP)  
Screw, Carrier Transport Motor (PP)  
Retainer, Encoder Strip (5 in  
packet)  
Parts Catalog 7-13  
         
4093/4094  
Assembly 7: Sheet Feeder  
7-14 Service Manual  
   
4093/4094  
Assembly 7: Sheet Feeder  
Asm-  
Index  
Part  
Number  
Units  
Description  
7-1  
17A0132  
17A0133  
17A0102  
17A0103  
1
Sheet Feeder Asm  
(4093-S01,S04) (4094-S01)  
1
2
2
1
1
1
Sheet Feeder Asm  
(4093-S02) (4094-S02)  
Support, Paper  
(4093-S01,S04) (4094-S01)  
Support, Paper  
(4093-S02) (4094-S02)  
3
4
17A0134  
17A0135  
1
1
Paper Pick Assembly  
Belt, Sheet Feeder Drive  
Parts Catalog 7-15  
           
4093/4094  
Assembly 8: Maintenance Station  
7-16 Service Manual  
   
4093/4094  
Assembly 8: Maintenance Station  
Asm-  
Index  
Part  
Number  
Units  
Description  
8-1  
2, 3  
17A0136  
17A0137  
1
1
Maintenance Station Asm  
Wiper and Cap B/M (one of each)  
Parts Catalog 7-17  
   
4093/4094  
Assembly 9: Photo Controller  
7-18 Service Manual  
   
4093/4094  
Assembly 9: Photo Controller  
Asm-  
Index  
Part  
Number  
Units  
Description  
9-1  
12G0142  
12G0145  
1
1
Board, Photo Controller  
2
Cables, Operator Panel and System  
Board and a System Board Cable  
Shield.  
3
3
3
4
5
6
7
8
14R0172  
14R0173  
14R0174  
12G0146  
12G0141  
12G0143  
12G0144  
17A0120  
1
1
1
1
1
1
1
1
Power Supply, External 100 V  
Power Supply, External 120-127 V  
Power Supply, External 220-240 V  
Cover, Accent  
Board, System  
Covers, Photo Controller  
Panel, Operator  
Power Connector  
Parts Catalog 7-19  
                   
4093/4094  
7-20 Service Manual  
4093/4094  
Index  
POST  
POST Symptom Table 2-4  
Sequence 2-3  
Sequence (5770) 2-3  
Power Consumption 1-5  
Problems  
Carrier Transport 2-5  
Communications 2-5  
Maintenance Station 2-5  
Paper Feed 2-6  
A
Abbreviations 1-6  
Adjustments 4-2  
arallel 2-13  
Assemblies  
1 Covers 7-2  
2 Frames 7-4  
3 Paper Feed 7-6  
4 Electronics 7-8  
5 Carrier 7-10  
6 Carrier Transport 7-12  
7 Sheet Feeder 7-14  
8 Maintenance Station 7-16  
9 Photo Controller 7-18  
Paper Feed Button 2-5  
Paper Status Light 2-5  
Power 2-6  
Print Quality 2-7  
R
C
Removal 4-5  
Removals  
Base Assembly 4-3  
Carrier Belt 4-3  
Carrier Frame 4-4  
Connectors  
Photo Controller (5770) 5-3  
System Board (5000, 5700) 5-1  
System Board (5770) 5-2  
Carrier Transport Motor 4-4  
Center Cover 4-6  
Covers (Complete) 4-5  
Encoder Card 4-6  
Encoder Strip 4-7  
EOF Flag Asm 4-7  
D
Diagnostic Aids  
End of Forms Test 3-5  
Paper Pick Assembly 3-1  
Test Page 3-6  
Exit Drive Belt 4-8  
Exit Roller 4-8  
E
Gear Plate 4-9  
Gutter Pad 4-9  
Error Indicator Table 2-2  
ESD-Sensitive Parts 4-1  
Large Feed Roll 4-9  
Maintenance Caps 4-10  
Maintenance Station 4-10  
Maintenance Wipers 4-10  
Mid-Frame Assembly 4-9, 4-10  
Paper Feed Motor 4-11  
Paper Pick Assembly 4-11  
Photo Controller Asm 4-11  
Printhead Cable & Cradle 4-12  
Printhead Carrier Asm 4-13  
Printhead Rubber Backer 4-14  
Sheet Feeder 4-15  
L
Lubrication Specifications 6-1  
M
Maintenance Approach 1-5  
Models 1-1  
P
Parallel 2-13  
Plastic Latches 4-2  
Index I-21  
 
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Small Feed Roller 4-15  
Star Roller 4-15  
System Board 4-15  
13A3593 7-9  
13A3594 7-9  
13A3595 7-9  
13A3840 7-3, 7-7  
13A3841 7-3, 7-7  
13A3842 7-3  
13A3843 7-3  
13A3844 7-3  
13A3845 7-3  
13A3846 7-3  
13A3847 7-3  
13A3848 7-3  
13A3849 7-3  
13A3852 7-3  
13A3853 7-3  
13A3854 7-3  
13A3855 7-3  
13A3856 7-3  
13A3857 7-3  
13A3860 7-11  
13A3861 7-3  
13A3862 7-3  
13A4494 7-9  
13A4497 7-9  
14R0172 7-19  
14R0173 7-19  
14R0174 7-19  
17A0100 7-3  
17A0101 7-3  
17A0102 7-15  
17A0103 7-15  
17A0104 7-7  
17A0106 7-7  
17A0107 7-7  
17A0108 7-7  
17A0109 7-7  
17A0110 7-7  
17A0111 7-7  
17A0112 7-7  
17A0116 7-9  
17A0118 7-9  
17A0119 7-9  
17A0120 7-9, 7-19  
17A0125 7-11  
17A0126 7-11  
17A0127 7-11  
17A0128 7-11  
S
Safety Information viii  
Service Checks  
First Print Line 2-8  
Maintenance Station 2-9  
Paper Feed 2-11  
Paper Path 2-13  
Parallel Port (5770) 2-13  
Power 2-15  
Print Quality 2-16  
Transport 2-18  
Symptom Table (POST) 2-4  
Symptom Tables 2-5  
T
Tests  
Button 3-2  
Code Level 3-2  
CompactFlash 3-3  
Controller Port 3-4  
DRAM 3-4  
End of Forms (EOF) 3-5  
LCD 3-2  
Parallel Port (5770) 3-3  
SmartMedia 3-3  
SRAM 3-4  
Test Page 3-6  
Part Numbers  
11B6073 7-9  
11B6074 7-9  
11B6075 7-9  
11B6076 7-9  
11B6077 7-9  
12G0141 7-19  
12G0142 7-19  
12G0143 7-19  
12G0144 7-19  
12G0145 7-19  
12G0146 7-19  
12G0164 7-13  
12G0249 7-5  
I-22 Service Manual  
4093/4094  
17A0129 7-13  
17A0130 7-13  
17A0131 7-13  
17A0132 7-5, 7-7, 7-15  
17A0133 7-5, 7-7, 7-15  
17A0134 7-15  
17A0135 7-15  
17A0136 7-7, 7-17  
17A0137 7-17  
17A0138 7-3, 7-5, 7-7, 7-11, 7-13  
17A0139 7-11  
17A0140 7-11  
17A0493 7-5  
17A0748 7-5  
7349594 7-3  
Index I-23  
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I-24 Service Manual  

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