1000 Color Jetprinter"!
1100 Color Jetprinter
4096-00X
" Table of Contents
" Start Diagnostics
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" Index
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Lexmark and Lexmark with diamond
design are trademarks of Lexmark
International, Inc., registered in the
United States and/or other countries.
4096-00X
First Edition (May, 1998)
The following paragraph does not apply to any country where such provisions are
inconsistent with local law: LEXMARK INTERNATIONAL, INC. PROVIDES THIS
PUBLICATION  AS IS WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR
IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do
not allow disclaimer of express or implied warranties in certain transactions, therefore, this
statement may not apply to you.
This publication could include technical inaccuracies or typographical errors. Changes are
periodically made to the information herein; these changes will be incorporated in later
editions. Improvements or changes in the products or the programs described may be
made at any time.
A form for reader s comments is provided at the back of this publication. If the form has
been removed, comments may be addressed to Lexmark International, Inc., Department
D22/035-3, 740 New Circle Road N.W., Lexington, Kentucky 40550, U.S.A. Lexmark may
use or distribute any of the information you supply in any way it believes appropriate
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related to this product by calling 1-800-553-9727. In other countries, contact your point of
purchase.
Lexmark and Optra are trademarks of Lexmark International, Inc., registered in the United
States and/or other countries.
Color Jetprinter is a trademark of Lexmark International, Inc.
Other trademarks are the property of their respective owners.
� Copyright Lexmark International, Inc. 1997, 1998.
All rights reserved.
UNITED STATES GOVERNMENT RESTRICTED RIGHTS
This software and documentation are provided with RESTRICTED RIGHTS. Use,
duplication or disclosure by the Government is subject to restrictions as set forth in
subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at
DFARS 252.227-7013 and in applicable FAR provisions: Lexmark International, Inc.,
Lexington, KY 40550.
4096-00X
Table of Contents
NoticesandSafetyInformation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Maintenance Approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Diagnostic Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Power-On Self Test (POST) Sequence . . . . . . . . . . . . . . . . . . . . 2-1
Symptom Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
POST Symptom Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Service Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Carrier Transport Service Check . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Envelope Feed Service Check. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Maintenance Station Service Check . . . . . . . . . . . . . . . . . . . . . . 2-7
Paper Feed Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Paper Path Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Power Service Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Print Quality Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Diagnostic Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Repair Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Handling ESD-Sensitive Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Removal Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Releasing Plastic Latches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Access Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Base and Sheet Feed Assembly Removal. . . . . . . . . . . . . . . . . . 4-2
Carrier Belt Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Carrier Frame Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Carrier Transport Motor Removal . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Drive Train Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
End-of-Form Flag Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Front Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Large Feed Roll Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Maintenance Station Assembly Removal. . . . . . . . . . . . . . . . . . . 4-5
Mid-Frame Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Power Supply Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Printhead Carrier Assembly Removal . . . . . . . . . . . . . . . . . . . . . 4-6
iii
4096-00X
Small Feed Roll Assembly Removal . . . . . . . . . . . . . . . . . . . . . . .4-6
System Board Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Connector Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
System Board Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Lubrication Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
PartsCatalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
How To Use This Parts Catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Assembly 1: Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
Assembly 2: Paper Feed / Carrier Transport / Maintenance . . . . . . .7-4
Assembly 3: Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6
Assembly 4: Carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8
Assembly 5: Sheet Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-10
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1
iv Service Manual
4096-00X
Notices and Safety Information
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 S�curit�
" Ce produit a �t� con�u, test� et approuv� pour respecter les
normes strictes de s�curit� globale lors de l'utilisation de
composants Lexmark sp�cifiques. Les caract�ristiques de
s�curit� de certains �l�ments ne sont pas toujours �videntes.
Lexmark ne peut ętre tenu responsable de l'utilisation d'autres
piŁces de rechange.
" Les consignes d'entretien et de r�paration de ce produit
s'adressent uniquement ą un personnel de maintenance
qualifi�.
" Le d�montage et l'entretien de ce produit pouvant pr�senter
certains risques �lectriques, le personnel d'entretien qualifi�
devra prendre toutes les pr�cautions n�cessaires.
Notices and Safety Information v
4096-00X
Norme di sicurezza
" Il prodotto Ł stato progettato, testato e approvato in conformitą 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 Ł
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 Ł pił
elevato. Il personale di assistenza autorizzato, deve, quindi,
adottare le precauzioni necessarie.
Sicherheitshinweise
" Dieses Produkt und die zugeh�rigen Komponenten wurden
entworfen und getestet, um beim Einsatz die weltweit g�ltigen
Sicherheitsanforderungen zu erf�llen. 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 f�r dieses Produkt �bernommen.
" Die Wartungsinformationen f�r dieses Produkt sind
ausschlie�lich f�r die Verwendung durch einen
Wartungsfachmann bestimmt.
" W�hrend des Auseinandernehmens und der Wartung des
Ger�ts besteht ein zus�tzliches Risiko eines elektrischen
Schlags und k�rperlicher Verletzung. Das zust�ndige
Fachpersonal sollte entsprechende Vorsichtsma�nahmen
treffen.
vi Service Manual
4096-00X
Pautas de Seguridad
" Este producto se ha diseńado, verificado y aprobado para
cumplir los m�s estrictos est�ndares de seguridad global
usando los componentes espec�ficos de Lexmark. Puede que
las caracter�sticas 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 est�
dirigida exclusivamente al personal cualificado de
mantenimiento.
" Existe mayor riesgo de descarga el�ctrica y de dańos
personales durante el desmontaje y la reparación de la
m�quina. El personal cualificado debe ser consciente de este
peligro y tomar las precauciones necesarias.
Informa��es de Seguran�a
" Este produto foi concebido, testado e aprovado para satisfazer
os padr�es globais de seguran�a na utiliza�ćo de componentes
espec�ficos da Lexmark. As fun��es de seguran�a de alguns
dos componentes podem nćo ser sempre óbvias. A Lexmark
nćo � respons�vel pela utiliza�ćo de outros componentes de
substitui�ćo.
" As informa��es de seguran�a relativas a este produto
destinam-se a profissionais destes servi�os e nćo devem ser
utilizadas por outras pessoas.
" Risco de choques el�ctricos e ferimentos graves durante a
desmontagem e manuten�ćo deste produto. Os profissionais
destes servi�os devem estar avisados deste facto e tomar os
cuidados necess�rios.
Notices and Safety Information vii
4096-00X
Informació de Seguretat
" Aquest producte estą dissenyat, comprovat i aprovat per tal
d'acomplir les estrictes normes de seguretat globals amb la
utililització de components espec�fics de Lexmark. Les
caracter�stiques de seguretat d'algunes peces pot ser que no
sempre siguin �bvies. Lexmark no es responsabilitza de l'us
d'altres peces de recanvi.
" La informació pel manteniment d aquest producte estą
orientada exclusivament a professionals i no estą destinada a
ningś que no ho sigui.
" El risc de xoc elŁctric i de danys personals pot augmentar
durant el proc�s de desmuntatge i de servei d aquest producte.
El personal professional ha d estar-ne assabentat i prendre les
mesures convenients.
viii Service Manual
4096-00X
Notices and Safety Information ix
4096-00X
x Service Manual
4096-00X
1. General Information
The Lexmark 1000 Color JetprinterTM and 1100 Color Jetprinter are
personal, near laser-quality inkjet printers. The print cartridge is a
single-unit customer replaceable supply item. A single printhead
provides three colors and composite black printing. The printer also
supports a black print cartridge and provides 600 X 600 dpi edge
definition for professional quality text image and graphics printing.
Paper Support /
Printer Model Color
Exit Tray
Lexmark 1000 Color 001 Gray No
Jetprinter
002 Black No
Lexmark 1100 Color 003 Gray Yes
Jetprinter
004 Black Yes
Power Consumption
" Less than 3 Watts - power off and power to the printer
" 9 Watts - Idle Mode (power on - not printing)
" 12 Watts - Printing (average)
" 20 Watts - Printing (peak)
Maintenance Approach
The diagnostic information in this manual leads you to the correct
field replaceable unit (FRU) or part. Use the symptom index, service
checks, and diagnostic aids to determine the symptom and repair
the failure. Begin with  Start on page 2-1.
The user is directed, in the Printer Control program, to perform the
bidirectional alignment adjustments after replacing a print cartridge.
General Information 1-1
4096-00X
Abbreviations
EOF End-of-Form
ESD Electrostatic Discharge
FRU Field Replaceable Unit
HVPS High Voltage Power Supply
LVPS Low Voltage Power Supply
NVRAM Nonvolatile Random Access Memory
OEM Original Equipment Manufacturer
POST Power-On Self Test
V ac Volts alternating current
V dc Volts direct current
ZIF Zero Insertion Force
1-2 Service Manual
4096-00X
2. Diagnostic Information
Start
Power-On Self Test (POST) Sequence
When you turn the printer on it performs a POST. Turn your machine
on and check for a correct POST operation by observing the
following:
1. The carrier moves.
2. The paper feed gears turn.
3. After 30 seconds the carrier moves over the maintenance
station and caps the printhead.
4. All motors stop.
If your machine does not complete POST, use the symptom tables
and service checks in chapter 2 to determine the failing part.
Diagnostic Information 2-1
4096-00X
Symptom Tables
Carrier Transport Problems
Symptom Action
" No carrier movement Go to the  Carrier Transport Ser-
" Slow carrier movement vice Check on page 2-5.
" Carrier stops
" Carrier slams side frame
Maintenance Station Problems
Symptom Action
Maintenance station: Go to the  Maintenance Station
Service Check on page 2-7.
" Fails to cap the printhead
" Fails to clean the printhead
Paper FeedButtonProblems
Symptom Action
Paper feed button does not Replace the system board.
operate.
2-2 Service Manual
4096-00X
Paper Feed Problems
Symptom Action
" Fails to pick paper Go to the  Paper Feed Service
" Picks more than one sheet of Check on page 2-8.
paper
" Picks paper but fails to feed
" Paper jams
" Paper fails to exit
" Noisy paper feed
Envelopes fail to feed Go to the  Envelope Feed Service
Check on page 2-6.
Paper skews Go to the  Paper Feed Service
Check on page 2-8.
Power Problems
Symptom Action
" No power in machine Go to the  Power Service Check
" No motors operating on page 2-11.
Print Quality Problems
Symptom Action
" Voids in characters Go to the  Print Quality Service
" Light print Check on page 2-12.
" Prints off the page
" Fuzzy print
" Carrier moves but no print
" Printhead drys prematurely
" Colors print incorrectly
" Vertical alignment off
" Ink smearing Go to the  Print Quality Service
" Vertical streaks on paper Check on page 2-12.
" Print lines crowded
Diagnostic Information 2-3
4096-00X
POST Symptom Table
Symptom Action
No power and Go to the  Power Service Check on page 2-11.
the motors do
not run
Paper feed Go to the  Paper Feed Service Check on page 2-8.
gears do not
turn
Carrier doesn t Go to the  Carrier Transport Service Check on
move page 2-5.
Carrier slams Go to the  Carrier Transport Service Check on
side frame page 2-5.
2-4 Service Manual
4096-00X
Service Checks
Carrier Transport Service Check
FRU Action
1 System Board Check the motor for binds, or loose motor pulley.
Turn the printer off and disconnect N6 from the
system board. 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 Carrier Transport A noisy or chattering motor or a motor that fails to
Motor turncanbecausedby:
" An open or short in the motor.
" An open or short in the motor driver on the
system board.
" A bind in the carrier transport mechanism.
With the carrier transport motor cable
disconnected from the system board, check for
zero to ten (0 - 10) ohms between the following
pins on the motor:
N6-1 and N6-2
N6-3 and N6-4
If the readings are incorrect, replace the motor.
3 Carrier Guide Rod Clean the carrier rod.
Note: Lubricate the carrier guide rod and the
carrier rod bearing surface with grease P/N
1329301.
4 Carrier Transport Check for worn, loose or broken parts. Check for
Belt obstructions blocking carrier movement.
Idler Pulley Parts
Carrier Frame Carrier to carrier frame engagement should be
lubricated with grease P/N 1329301.
Diagnostic Information 2-5
4096-00X
FRU Action
5 Home Position Be sure the carrier returns to the home position
Sensor after turning the printer on. If the carrier moves half
way, or if there is an abnormal sound, turn the
printer off and disconnect N3 from the system
board. Turn the printer on and check for 5 V dc
between N3-4 and N3-2 on the system board. If
the voltage is present, replace the home position
sensor. If the voltage is not present, replace the
system board.
6 Maintenance A problem with the maintenance station can cause
Station carrier movement problems at the right margin. Go
to the  Maintenance Station Service Check on
page 2-7.
Envelope Feed Service Check
FRU Action
1 Envelope Guide Be sure the envelope guide has been turned to
theenvelopeloadposition.
Be sure the envelope guide is against the
envelopes.
2-6 Service Manual
4096-00X
Maintenance Station Service Check
The maintenance station has two functions:
" Cleans the printhead nozzles during the print operation.
" Seals the printhead when it is not being used to prevent the
nozzles from drying.
FRU Action
1 Maintenance As the carrier moves to the right over the
Station Assembly maintenance station, a slot on the bottom of the
carrier engages a tab on the sled of the
maintenance station causing the cap to rise and
seal the printhead. Carrier movement to the left
uncaps the printhead. The wiper cleans the
printhead nozzles as the carrier leaves the
maintenance station. The wiper cleans the
printhead 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 wiper to lower.
Check the maintenance station for worn or broken
parts.
2 Wiper A worn wiper causes degraded print quality just
after a maintenance cleaning. Check for a loose or
worn wiper.
3 Cap A worn cap causes the printhead nozzles to dry
and clog. Check for a loose or worn cap.
Diagnostic Information 2-7
4096-00X
Paper Feed Service Check
If your machine does not have paper jam problems, continue with
the service check. If your machine 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.
FRU Action
1 System Board Turn the printer on and verify the paper feed motor
activates. Be sure the end-of-form sensor lever is
in the down position. Turn the printer off and
disconnect N7 from the system board. Check for
motor pins shorted to the motor housing. If you
find a shorted pin, replace the paper feed motor. If
you still have a failure after replacing the paper
feed motor, replace the system board.
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, or a bind in the paper feed
mechanism. With the paper feed motor cable N7
disconnected from the system board, check for 80
ohms (ą7 ohms) between the following pins on the
motor: Pin 1 to Pin 2, Pin 1 to Pin 4
160 ohms (ą7 ohms) between pins 2 and 4. If the
readings are incorrect, replace the paper feed
motor and drive train assembly.
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.
2-8 Service Manual
4096-00X
FRU Action
3 Drive Train Check for binds in the gear train and paper feed
Assembly mechanism by removing the paper feed motor and
rotating the large gear by hand. If you notice a
bind, replace the drive train assembly. Check the
feed clutch gear on the left side of the auto sheet
feeder. Turn the clutch gear and check that it
rotates freely in one direction and locks when
turned in the opposite direction.
4 Auto Sheet Check the pick rollers for wear.
Feeder
5 Mid-Frame Asm Check the following for wear:
Access Cover
Asm " Friction wheels
" Exit roller
" Star rollers
6 End-of-Forms Check for binds or damage. If binds are found,
Flag and Spring replace the end-of-forms flag.
7 End-of-Forms Check the sensor for dirt. Be sure the sensor lever
Sensor is in the down position. If the failure remains,
replace the system board.
Diagnostic Information 2-9
4096-00X
Paper Path Service Check
Examine the machine for the following before you begin this service
check:
" Check the entire paper path for obstructions.
" Be sure the correct type of paper is being used.
" Be sure the printer is installed on a flat surface.
FRU Action
1 Large and Small Check for wear and binds.
Feed Rollers
2 Small Feed Roller Check for damage.
Springs
3 Auto Sheet Check the pick rollers for wear.
Feeder
4 Mid-Frame Asm Check the following for wear:
Access Cover
Asm " Friction wheels
" Exit roller
" Star rollers
5 End-of-Forms Check for binds or damage.
Flag
2-10 Service Manual
4096-00X
Power Service Check
FRU Action
1 Power Supply Disconnect N1 from the system board and check
the following voltages on the power supply cable:
" N1-1toGND=+5Vdc
" N1-3 to GND = +24 V dc
If you do not have correct voltage, replace the
power supply. Be sure to unplug the machine
before you reconnect the power supply to the
system board.
2 Printhead Cable Turn off the printer. Disconnect one of the
Carrier Home printhead cables and turn on the printer. Look for a
Sensor symptom change. Check the failing part for shorts
Parallel Cable and replace as necessary.
Repeat this procedure for the carrier home sensor
and parallel cable.
3 System Board If the symptom has not changed, replace the
system board.
Diagnostic Information 2-11
4096-00X
Print Quality Service Check
FRU / Function Action
1 Print Cartridge Be sure the machine contains a good print
cartridge.
2 Color Print Cross contamination of color inks results in
Cartridge Cross incorrect colors printed, as when green prints for
Contamination yellow, (when yellow and blue are mixed in the
print cartridge). This problem resolves quickly as
the print cartridge is used. If cross contamination
occurs, check:
" The maintenance station wiper for damage.
" The printhead nozzle plate was resealed with
tape.
3 Printhead Carrier Reseat the printhead cables in the system board
Assembly and check the following parts for wear or damage:
" Print Cartridge Latch
" Latch Spring
" Carrier
2-12 Service Manual
4096-00X
FRU / Function Action
4 System Board Execute the  Clean Print Nozzle in  Cartridges of
the Printer Control Program. Look for a break in
Printhead Cable the diagonal line of the test pattern. A broken line
indicates one or more print nozzles are not
Rubber Backer working. Run the test again to verify the failure. If
there are even breaks in the diagonal line similar to
the pattern shown below, ensure the printhead
cables are connected properly. If the symptom
remains, replace the system board.
If there is a single break or random breaks in the
diagonal line check the following:
" 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 needtoremovethe cablefromthe 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.
5 Maintenance Intermittent nozzle failures can be caused by worn
Station parts in the maintenance station. Perform the
 Maintenance Station Service Check on
page 2-7, then return to this check.
6 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. Also check
the paper for curl or wrinkles.
" Feed rollers for wear, dirt, or looseness.
" Gears for wear or binds.
" Paper path for obstructions.
Diagnostic Information 2-13
4096-00X
FRU / Function Action
7 Carrier Transport Blurred print and voids can be caused by problems
in the carrier transport area. Check the following:
" Carrier transport belt for wear.
" Carrier guide rod for wear or dirt.
" Carrier to carrier frame engagement should be
lubricated with grease P/N 1329301, as well as
the carrier guide rod and bearing.
" Idler pulley parts for wear, damage, or
looseness.
8 Alignment Uneven vertical lines can be adjusted by
performing the bidirectional alignment. The user is
directed, through the Printer Control program, to
perform the bidirectional printing alignment, when
replacing a print cartridge.
2-14 Service Manual
4096-00X
3. Diagnostic Aids
There are no residence diagnostic aids associated with the 4096
printers.
Diagnostic Aids 3-1
4096-00X
3-2 Service Manual
4096-00X
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.
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 machine.
" 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 machine.
" 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 cor-
rect tool.
" Do not place the ESD-sensitive part on the machine cover or on a
metal table; if you need to put down the ESD-sensitive part for any rea-
son, first put it into its special bag.
" Machine 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 dis-
charge paths without being grounded.)
" Prevent ESD-sensitive parts from being accidentally touched by other
personnel. Install machine covers when you are not working on the
machine, 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 extra careful in working with ESD-sensitive parts when cold weather
heating is used because low humidity increases static electricity.
Repair Information 4-1
4096-00X
Adjustments
The user is directed, in the Printer Control program, to perform the
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.
Access Cover Removal
1. Open the access cover.
2. Press both left and right side of the hinges to the center of the
machine.
3. Remove the access cover from the front cover.
Base and Sheet Feed Assembly Removal
1. Remove the front cover.
2. Remove the five screws that secure the carrier frame to the
base assembly and power supply ground strap.
3. Disconnect the power supply connector at the system board
and cut the wire clamp on the left side.
4. Remove the carrier frame from the base assembly and lift it off
the base.
5. Remove the two screws that secure the power supply to the
base assembly.
6. Remove the power supply.
4-2 Service Manual
4096-00X
Carrier Belt Removal
1. Remove the front cover.
2. Remove the retainer spring from the right side of the carrier rod.
3. Slide the carrier rod to the right, out of the machine.
4. Remove the carrier belt from the rear of the carrier.
5. Remove the carrier belt from the carrier transport motor pulley.
6. Remove the carrier belt.
Carrier Frame Assembly Removal
1. Remove the front cover.
2. Remove the five screws that secure the carrier frame to the
base assembly and power supply ground strap.
3. Disconnect the power supply connector at the system board
and cut the wire clamp on the left side.
4. Remove the carrier frame from the base assembly and lift it off
the base.
5. Remove the two screws that secure the power supply to the
base.
6. To replace the carrier frame, remove all associated parts from
the old carrier frame and install them on the new carrier frame.
Carrier Transport Motor Removal
1. Remove the front cover.
2. Remove the carrier frame assembly.
3. Disconnect the motor connector from the system board.
4. Remove the two screws then remove the motor.
Repair Information 4-3
4096-00X
Drive Train Assembly Removal
1. Remove the front cover.
2. Remove the carrier frame.
3. Remove the base assembly.
4. Remove the maintenance station assembly.
5. Remove the printhead carrier assembly.
6. Remove the large feed roll and mid-frame assembly.
7. Disconnect the paper feed motor connector from the system
board.
8. Remove the two screws securing the drive train to the carrier
frame.
9. Push the drive train to the right and remove it from the carrier
frame.
Note: The paper feed motor is a part of the drive train assembly.
End-of-Form Flag Removal
1. Remove the front cover.
2. Remove the carrier frame from the base assembly.
3. Disconnect all cables from the system board.
4. Remove the four screws securing the system board to the
carrier frame and remove the system board. (Take care when
removing the system board, not to damage the end-of-form
flag).
5. Remove the two center feed roller springs from the carrier
frame.
6. Unlatch the clip from the right side of the end-of-form flag.
7. Remove the spring, while noting its position.
8. Unlatch the left side and remove the end-of-form flag.
4-4 Service Manual
4096-00X
Front Cover Removal
1. Release the two hooks [A] in the illustration by using a
screwdriver.
2. While pushing the left side edge of the front cover upward,
release the hook [B]. Repeat this on the right side.
3. Slide the front cover forward and remove it from the rear cover.
Large Feed Roll Removal
1. Remove the front cover.
2. Remove the carrier frame from the base assembly.
3. Move the printhead carrier assembly to the left.
4. Remove the maintenance station assembly.
5. Turn and remove the retainers at both ends of the large feed
roller.
6. Remove the mid-frame assembly.
7. Remove the large feed roller from the carrier frame.
Maintenance Station Assembly Removal
1. Remove the front cover.
2. Release the two hooks on the rear of the maintenance station.
3. Remove the maintenance station by sliding it forward.
Repair Information 4-5
4096-00X
Mid-Frame Assembly Removal
1. Remove the front cover.
2. Remove the carrier frame from the base assembly.
3. Move the printhead carrier assembly to the left.
4. Remove the maintenance station assembly.
5. Turn and remove the retainers at both ends of the large feed
roller.
6. Remove the mid-frame assembly.
Power Supply Removal
1. Remove the front cover.
2. Remove the carrier frame from the base assembly.
3. Disconnect the power supply connector from the system board.
4. Remove the screws that secure the power supply to the base
assembly and remove the power supply.
Printhead Carrier Assembly Removal
1. Remove the front cover.
2. Disconnect the printhead cable from the system board.
3. Remove the retainer spring from the right end of the carrier
guide rod.
4. Slide the carrier guide rod out the right side of the machine.
5. Remove the belt from the back of the carrier.
6. Lift the carrier out of the machine.
Small Feed Roll Assembly Removal
1. Remove the front cover.
2. Remove the carrier frame from the base assembly.
3. Remove the four small feed roller springs from the carrier frame.
4. Remove each of the small feed roll assemblies from the frame.
4-6 Service Manual
4096-00X
System Board Removal
1. Remove the front cover.
2. Remove the carrier frame from the base assembly.
3. Disconnect all cables from the system board.
Remove the four screws securing the system board to the carrier
frame and remove the system board, taking care not to damage the
end-of-form flag. Note the routing of all cables.
Repair Information 4-7
4096-00X
4-8 Service Manual
4096-00X
5. Connector Locations
System Board Connectors
N1 Power Supply
N2 Parallel Port
N3 Printhead Cable 1
N4 Printhead Cable 2
N6 Carrier Transport
Motor
N7 Paper Feed Motor
S1 Paper Feed Switch
Connector Locations 5-1
4096-00X
5-2 Service Manual
4096-00X
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.
" The carrier to carrier frame engagement.
" The carrier guide rod and carrier guide rod bearings.
Preventive Maintenance 6-1
4096-00X
6-2 Service Manual
4096-00X
7. Parts Catalog
How To Use This Parts Catalog
" SIMILAR ASSEMBLIES: If two assemblies contain a majority of
identical parts, they are broken down 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 pictured in the illustration.
" PP: in the parts description column indicates the part is
available in the listed parts packet.
Parts Catalog 7-1
4096-00X
Assembly 1: Covers
7-2 Service Manual
4096-00X
Asm- Part
Units Description
Index Number
1 -1 11B5128 1 Cover, Access Asm, Star Wheels (002)
-1 11B5129 1 Cover, Access Asm, Star Wheels (001)
-1 17Z0177 1 Cover, Access Asm, Star Wheels (003)
-1 17Z0176 1 Cover, Access Asm, Star Wheels (004)
-2 11B5127 1 Cover, Front Asm & Button (001, 002)
-2 17Z0174 1 Cover, Front Asm & Button (003)
-2 17Z0175 1 Cover, Front Asm & Button (004)
-3 11B5125 1 Base Asm and Sheet Feed (001, 002)
-3 17Z0170 1 Base Asm and Sheet Feed (003)
-3 17Z0171 1 Base Asm and Sheet Feed (004)
NS 11B5111 1 Support, Banner Paper
NS 7349593 1 Replaceable Package B/M - Includes:
(Carton, Cushion Set, Sealing Tape)
(001, 002)
NS 7350132 1 Replaceable Package B/M - Includes:
(Carton, Cushion Set, Sealing Tape)
(003, 004)
Parts Catalog 7-3
4096-00X
Assembly 2: Paper Feed / Carrier Transport / Maintenance
7-4 Service Manual
4096-00X
Asm- Part
Units Description
Index Number
2 -1 11B5130 1 Frame, Carrier
-2 11B5142 1 Motor, Carrier Transport Assembly
-3 11B5144 1 Screw, (PP)
-4 11B5136 1 End-of-Form Flag and Spring
-5 11B5144 1 Spring, Small Feed Roll Asm, (PP)
-6 11B5135 1 Feed Roll Assembly, Small
-7 11B5137 1 Drive Train Assembly with Paper
Feed Motor
-8 11B5144 1 Arm, Tensioner (PP)
-9 11B5144 1 Belt, Carrier (PP)
-10 11B5134 1 Feed Roll Assembly, Large with
Gear
-11 11B5133 1 Frame, Mid Assembly
-12 11B5143 1 Maintenance Assembly
-NS 11B5144 6 Screw, (PP)
Parts Catalog 7-5
4096-00X
Assembly 3: Electronics
7-6 Service Manual
4096-00X
Asm- Part
Units Description
Index Number
3 -1 11B5130 1 Frame, Carrier
-2 11B5138 1 System Board with ROM (LV) (001, 002)
-2 11B6044 1 System Board with ROM (HV) (001, 002)
-2 17Z0180 1 System Board with ROM (LV & HV)
(003, 004)
-3 11B5139 1 Power Supply: 110V
-3 11B5140 1 Power Supply: 220V
-4 11B5125 1 Base Asm and Sheet Feed (001, 002)
-5 11B5141 1 Power Cord, U.S.
11B5624 Power Cord, Austria
11B5622 Power Cord, Belgium
11B5624 Power Cord, Brazil
11B5624 Power Cord, Canada
11B5622 Power Cord, Chile
11B5622 Power Cord, Cyrillic
11B5622 Power Cord, Denmark
11B5622 Power Cord, East Turkey
11B5622 Power Cord, Europe
11B5622 Power Cord, Finland
11B5622 Power Cord, France
11B5622 Power Cord, Germany
11B5622 Power Cord, Greece
11B5623 Power Cord, Israel
11B5622 Power Cord, Italy
11B5141 Power Cord, Japan
11B5622 Power Cord, Mexico
11B5622 Power Cord, Netherlands
11B5622 Power Cord, Norway
11B5626 Power Cord, Peru
11B5622 Power Cord, Portugal
11B5625 Power Cord, South Africa
11B5622 Power Cord, Spain
11B5622 Power Cord, Sweden
11B5621 Power Cord, UK, Ireland
Parts Catalog 7-7
4096-00X
Assembly 4: Carrier
7-8 Service Manual
4096-00X
Asm- Part
Units Description
Index Number
4 -1 11B5131 1 Carrier Assembly, with Carrier
Home Sensor
-2 11B5132 1 Rod, Carrier Guide
-3 11B5130 1 Frame, Carrier
-4 11B5144 1 Spring, Carrier Guide Rod (PP)
Parts Catalog 7-9
4096-00X
Assembly 5: Sheet Feeder
7-10 Service Manual
4096-00X
Asm- Part
Units Description
Index Number
5 -1 11B5130 1 Frame, Carrier
-2 11B5125 1 Base, Sheet Feeder Asm and
Garage Assembly (001, 002)
-2 17Z0170 1 Base, Sheet Feeder Asm and
Garage Assembly (003)
-2 17Z0171 1 Base, Sheet Feeder Asm and
Garage Assembly (004)
-3 11B5126 1 Support, Upper Paper (001, 002)
-3 17Z0172 1 Support, Upper Paper (003)
-3 17Z0173 1 Support, Upper Paper (004)
-4 17Z0178 1 Tray, Exit (003)
-4 17Z0179 1 Tray, Exit (004
Parts Catalog 7-11
4096-00X
7-12 Service Manual
4096-00X
Index
Access Cover 4-2
A
Base Assembly 4-2
Abbreviations 1-2
Carrier Belt Asm 4-3
Adjustments 4-2
Carrier Frame Asm 4-3
Assemblies
Carrier Transport Motor 4-3
2 Carrier Transport 7-4
Drive Train Assembly 4-4
2 Maintenance Station 7-4
End-of-Form Flag 4-4
2 Paper Feed 7-4
Front Cover 4-5
3 Electronics 7-6
Large Feed Roll 4-5
4 Carrier 7-8
Maintenance Station 4-5
5 Sheet Feeder 7-10
Mid-Frame Assembly 4-6
Power Supply 4-6
C
Printhead Carrier Asm 4-6
Connectors
Sheet Feed Asm 4-2
System Board 5-1
Small Feed Roll Asm 4-6
System Board 4-7
E
S
ESD-Sensitive Parts 4-1
Safety Information v
L
Service Checks
Envelope Feed 2-6
Lubrication Specifications 6-1
Maintenance Station 2-6
M Paper Feed 2-8
Paper Path 2-9
Maintenance Approach 1-1
Power 2-10
Print Quality 2-11
P
Transport 2-5
Parts Catalog 7-1
Symptom Table (POST) 2-4
Plastic Latches 4-2
Symptom Tables 2-2
POST
Sequence 2-1
Symptom Table 2-4
Power Consumption 1-1
Problems
Carrier Transport 2-2
Maintenance Station 2-2
Paper Feed 2-3
Paper Feed Button 2-2
Power 2-3
Print Quality 2-3
R
Removals
Index I-1
4096-00X
I-2 Service Manual
NO POSTAGE
NECESSARY
IF MAILED
IN THE
UNITED STATES
BUSINESS REPLY MAIL
FIRST CLASS MAIL PERMIT NO. 2659 LEXINGTON, KY
POSTAGE WILL BE PAID BY ADDRESSEE
LEXMARK INTERNATIONAL INC
DEPARTMENT D22A BUILDING 035 3
740 NEW CIRCLE ROAD NW
LEXINGTON KY 40511 9954
| || | || | | | | | || || | | | || | | | || | | || | || || | | || || | || | || | || || |
                            
Fold Here
Tape Please Do Not Staple Tape
                                                    
Cut Along Line


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