Lexmark 7100 Series Service Manual
Edition: October 25, 2006
Lexmark™ 7100 Series AIO
• Table of Contents
• Start Diagnostics
4409-XXX
• Safety and Notices
• Trademarks
•Index
Lexmark and Lexmark with diamond
design are trademarks of Lexmark
International, Inc., registered in the
United States and/or other countries.
4409-XXX
Edition: October 25, 2006
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.
Comments may be addressed to Lexmark International, Inc., Department D22A/032-2,
740 West New Circle Road, Lexington, Kentucky 40550, U.S.A or e-mail at
ServiceInfoAndTraining@Lexmark.com. Lexmark may use or distribute any of the
information you supply in any way it believes appropriate without incurring any obligation
to you. You can purchase additional copies of publications related to this product by
calling 1-800-553-9727. In other countries, contact your point of purchase.
Lexmark and Lexmark with diamond design are trademarks of Lexmark International,
Inc., registered in the United States and/or other countries.
Other trademarks are the property of their respective owners.
© 2004 Lexmark International, Inc.
All rights reserved.
UNITED STATES GOVERNMENT RIGHTS
This software and any accompanying documentation provided under this agreement are
commercial computer software and documentation developed exclusively at private
expense.
U.S.A. P/N: 12G9424
Japanese P/N: 12G9425
4409-XXX
Table of contents
Safety information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Scanner specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Maintenance approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Diagnostic information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Power-On Self Test (POST) sequence . . . . . . . . . . . . . . . . . . . . 2-1
POST symptom table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Symptom tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Service checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Carrier transport service check . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
CCD module assembly service check . . . . . . . . . . . . . . . . . . . . . 2-8
Pictbridge service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Maintenance station service check . . . . . . . . . . . . . . . . . . . . . . 2-10
Paper feed service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Paper path service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Power service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Print quality service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Scan/copy quality service check . . . . . . . . . . . . . . . . . . . . . . . . 2-16
ADF module service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Catastrophic error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Non-catastrophic error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Diagnostic aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Test page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Repair information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Handling ESD-sensitive parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Removal procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Releasing plastic latches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Scanner assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
iii
4408-XXX
Exit tray removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Print engine cover with left and right covers . . . . . . . . . . . . . . . . .4-6
Carrier removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10
Fax card removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
System board removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
Print engine removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14
Maintenance station removal . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16
Rear access door removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-17
ADF module assembly removal . . . . . . . . . . . . . . . . . . . . . . . . .4-18
Pictbridge card with cable removal . . . . . . . . . . . . . . . . . . . . . . .4-20
Connector locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
System board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Fax card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
PictBridge card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
Preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Lubrication specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Parts catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Assembly 1: Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Assembly 2: Electronics and carrier transport . . . . . . . . . . . . . . . . . . . 6
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X-1
iv Service Manual
4409-XXX
Safety information
• The safety of this product is based on testing and approvals of
the original design and specific components. The manufacturer
is not responsible for safety in the event of use of unauthorized
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
• La sécurité de ce produit repose sur des tests et des
agréations portant sur sa conception d'origine et sur des
composants particuliers. Le fabricant n'assume aucune
responsabilité concernant la sécurité en cas d'utilisation de
pièces de rechange non agréées.
• 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.
Safety information v
4409-XXX
Norme di sicurezza
• La sicurezza del prodotto si basa sui test e sull'approvazione
del progetto originale e dei componenti specifici. Il produttore
non è responsabile per la sicurezza in caso di sostituzione non
autorizzata delle parti.
• 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
• Die Sicherheit dieses Produkts basiert auf Tests und
Zulassungen des ursprünglichen Modells und bestimmter
Bauteile. Bei Verwendung nicht genehmigter Ersatzteile wird
vom Hersteller keine Verantwortung oder Haftung für die
Sicherheit 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.
vi Service Manual
4409-XXX
Pautas de Seguridad
• La seguridad de este producto se basa en pruebas y
aprobaciones del diseño original y componentes específicos.
El fabricante no es responsable de la seguridad en caso de uso
de piezas de repuesto no autorizadas.
• 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
• A segurança deste produto baseia-se em testes e aprovações
do modelo original e de componentes específicos. O fabricante
não é responsável pela segunrança, no caso de uso de peças
de substituição não autorizadas.
• 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.
Safety information vii
4409-XXX
Informació de Seguretat
• La seguretat d'aquest producte es basa en l'avaluació i
aprovació del disseny original i els components específics.
El fabricant no es fa responsable de les qüestions de
seguretat si s'utilitzen peces de recanvi no autoritzades.
• 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.
viii Service Manual
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Safety information ix
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Preface
This manual contains maintenance procedures for service
personnel. It 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.
Definitions
CAUTION: A caution identifies something that might cause a
servicer harm.
Warning: A warning identifies something that might damage the
printer hardware or software.
Note: A note provides additional information.
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4409-XXX
1. General information
The Lexmark™ 7100 Series (4409-XXX) All-In-One features an
electro-mechanical color scanner, printer, copier, and fax that
creates characters and graphics by composing programmed
patterns of ink dots using a printhead and liquid ink. The printhead
uses small heater plates and nozzles to control ink flow and the
formation of characters on the print media. The printhead assembly
and ink supply are combined into a single-unit print cartridge
available as a customer replaceable supply item. Dual printheads
provide color and true black printing without changing printheads.
The number and size of inkjets or nozzles in the printhead
determines the overall quality and capability of the printer. The black
cartridge has a total of 640 nozzles and installs on the left. The color
cartridge has a total of 480 nozzles installs on the right. The printer
is capable of printing in two directions from either cartridge.
General information 1-1
4409-XXX
Power consumption
Mode Description Power consumption
Printing All-in-One is generating hard
copy output
Copying All-in-One is generating hard
copy output from hard copy
originals
Scanning All-in-One is scanning hard
copy documents
Ready All-in-One is turned on and
not printing, scanning, faxing
or using Pictbridge, and is
not in power-saver.
High Off All-in-One is plugged into a
wall outlet, but power switch
is turned off
Power Saver All-in-One sitting idle and at
ready state, but LCD
backlight is turned off.
18.76 Watts
18.53 Watts
15.63 Watts
11.79 Watts
6.22 Watts
6.66 Watts
1-2 Service Manual
4409-XXX
Scanner specifications
Scanner Type Flatbed, CCD
Scan Modes True Color:
Scan Method One Pass Scanning
Scan Area 8.5 X 11.7 inches
Scan Resolution Flatbed Scanning:
48 Bit Internal (68.7 billion colors)
24 Bit External (16.7 million colors)
Gray Mode:
16 Bit Internal (4,096 shades of
gray)
8 Bit External (256 shades of gray)
Text/Line Art:
1 Bit Per Pixel
216 X 297 mm
-Optical or horizontal: 1200 ppi
-Vertical: 4800 ppi
- Interpolated: 19,200 x 19,200
- ADF horizontal: 600 ppi
- ADF vertical: 600 ppi
General information 1-3
4409-XXX
Control panel
The control panel is designed to allow the user to access functions
in an intuitive and swift manner. The panel is set up to function in
one of three different modes: Scan, Copy, or Fax. The display offers
different options depending upon which mode the machine is in.
Increment and scroll operations are automatic when a button is held,
and increments are accelerated the longer the button is held.
Buttons Functions
Number of
Copies
Lighter/Darker Allows the user to select the darkness of the image to
Reduce/Enlarge Allows the user to make a copy smaller or larger than
This button changes the number of copies that are
made in the copy mode. It has no action in the scan
mode or fax mode. The settings range from 1 to 99
copies.
be faxed (in fax mode) or copied (in copy mode). It is
disabled in scan mode. There are seven available
darknesses, with the middle darkness setting being
the default.
the original. The available settings are:
- 25% (default)
- 400%
- Custom%
- Fit to page
- 2x2 Poster
- 4x4 Poster
The custom setting allows the user to enter any
percentage from 25% to 400%.
1-4 Service Manual
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Buttons Functions
Left arrow <
Right arrow>
Options Displays the first entry in the options menu. The
Select This button is used to choose the option currently
Quality Adjusts the quality of the document to be copied,
Color Initiates a stand-alone color copy/fax/scan job,
The standard operation of the left arrow button is to
decrement any displayed count or decrement through
a list on the LCD.
The standard operation of the right arrow button is to
increment any displayed count or increment through a
list on the LCD.
options menu is dependent on the copy/fax/scan
mode.
displayed on the LCD. In addition:
• If the button is held down for three seconds while in
copy or fax mode when no options are selected and
no paper is loaded, it will load paper.
• If the button is held down for three seconds while in
copy or fax mode when no menu options are
selected and the paper is already loaded, it will eject
the paper.
scanned or faxed. There are three quality settings:
- Quick print
- Normal (default)
- Best
depending upon which mode is selected at the time
the button is pressed. This button is disabled during a
print or PC copy job.
Black Initiates a stand-alone mono copy/fax/scan job,
depending upon which mode is selected at the time
the button is pressed. This button is disabled during a
print or PC copy job.
General information 1-5
4409-XXX
Buttons Functions
Mode This button has three mode LEDs: copy, fax and scan.
Repeated pressing of this button cycles the LEDs and
the machine through copy/fax/scan modes:
Copy Mode: Enables the user to make mono or color
copies. Upon entering this mode, the LCD shall display
the current number of copies, the copy quality, and the
reduce/enlarge percentage. To make a copy, enter the
copy mode and press either Color or Mono to initiate
the copy.
Fax Mode: This mode is used to transmit faxes. Upon
entering this mode, the LCD shall prompt the user for a
phone number to initiate a fax, and the display will
show the current date and time. To initiate a fax, enter
the fax mode, enter a phone number, and press either
Color or Mono to initiate the fax.
Scan Mode: Scans an image to the host. Upon
entering this mode, the LCD shall prompt the user for
scan-to destination. To initiate a scan, enter the scan
mode, select a scan destination, and press either
Color or Mono to initiate the scan.
Stop/Clear Cancel a scan, print, or copy job, or return to a menu
category from a menu sub-category.
Power Turns the machine on or off.
Speed Dials There are five speed dial buttons. Pressing one of
these buttons causes the machine to instantly display
the name and phone number associated with that
quick dial button. Press either the Color or Mono
button to initiate the fax to that number. The speed dial
names and numbers can be programmed by using the
control panel or the host software. Pressing one of the
speed dial buttons while in the copy or scan mode will
automatically switch to fax mode and display the first
speed dial selection.
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Buttons Functions
Speed Dials
(5—99)
Redial/Pause When pressing this button while the machine is in fax
This button gives access to additional speed dial
numbers. Speed dials #5—#79 are single entry and
speed dials #80—#99 are group entries. Single entries
contain only one phone number. Group entries contain
up to five different phone numbers. The speed dial
names and numbers can be programmed by using
either the control panel or the host software.
Pressing this button displays the speed dial #5 and
upward name and phone number. You can cycle
through the speed dial in multiple ways:
1. Repeated pressing of Speed Dials (5—99) button
2. Using the arrow keys
3. Using the keypad to type the two digit number
Pressing the speed dials (5—99) button while in the
copy or scan mode will automatically switch to fax
mode and display speed dial selection #5.
mode, the machine will immediately dial the number
that was last entered. The fax is sent using the current
settings.
Pressing this button after you have already started
entering a number inserts a “,” into the number. When
the machine dials this number, the “,” results in a three
second pause before sending the next number. This is
useful if needing to wait for an outside line or waiting
for prompts in an automated answering system.
If this button is pressed while in copy or scan mode,
the machine will automatically switch to fax mode and
initiate the proper response for redial/pause.
General information 1-7
4409-XXX
Buttons Functions
Auto Answer Toggles the state of the auto answer function and the
auto answer LED.
If an incoming call is present and:
• Auto answer LED is off: The machine will display the
manual mode answering message “Incoming Call
Press 9 to answer” and answer the incoming call
only if you enter the correct manual mode keypress.
• Auto answer LED is on: The machine will answer
the incoming call after the expected number of rings.
If you pick up the phone prior to the machine
answering the call and fax tones are present on the
line, it will detect these fax tones and immediately
respond to the fax.
Maintenance approach
The diagnostic information in this manual leads you to the correct
field replaceable unit (FRU) or part. Use the symptom tables, service
checks, and diagnostic aids to determine the symptom and repair
the failure.
After you complete the repair, perform tests as needed to verify the
repair.
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Abbreviations
B/M Bill of Material
CCD Charge Coupled Device
EOF End of Form
ESD Electrostatic Discharge
FPC Flat Printhead Cable
FRU Field Replaceable Unit
HVPS High Voltage Power Supply
LCD Liquid Crystal Display
LVPS Low Voltage Power Supply
OEM Original Equipment Manufacturer
V ac Volts alternating current
V dc Volts direct current
ZIF Zero Insertion Force
General information 1-9
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1-10 Service Manual
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2. Diagnostic information
Start
Use the post symptom table, symptom tables, and service checks in
this chapter to determine the printer failure.
Power-On Self Test (POST) sequence
Press the Power button to turn machine on.
• The Copy, Scan, and Fax indicator lights turn on.
• The Charge-Coupled Device (CCD) moves to the right and then
returns.
• The Fax and Scan indicator lights turn off.
• The Copy and Auto Answer indicator lights stay on.
• The paper feed motor runs then stops.
• The carrier moves and then returns to the maintenance station.
• The following message is displayed on the LCD.
If your printer completes POST with no errors, go to the “Symptom
tables” on page 2-2, locate the symptom and take the appropriate
action.
If your printer does not complete POST, locate the symptom in the
following table and take the appropriate action.
Diagnostic information 2-1
4409-XXX
POST symptom table
Symptom Action
No Power, Copy,
Fax, or Scan
lights, and no
motors run.
Paper feed
gears do not
turn
Carrier does not
move
Carrier slams
side frame
CCD does not
move
CCD lamp does
not turn on
Go to the “Power service check” on page 2-14. If okay,
go to the “Control panel problems” on page 2-3.
Go to the “Paper feed service check” on page 2-11.
Go to the “Carrier transport service check” on
page 2-6.
Go to the “Carrier transport service check” on
page 2-6.
Go to the “CCD module assembly service check” on
page 2-8.
Go to the “CCD module assembly service check” on
page 2-8.
Symptom tables
Locate the symptom in the following tables and take the appropriate
action.
Carrier transport problems
Symptom Action
• No carrier movement
• Slow carrier movement
• Carrier stops
• Carrier slams side frame
Go to the “Carrier transport
service check” on page 2-6.
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Maintenance station problems
Symptom Action
Maintenance station:
• Fails to cap the printheads
• Fails to clean the printheads
Go to the “Maintenance station
service check” on page 2-10.
Control panel problems
Symptom Action
• Buttons do not work
• LCD does not display
Check control panel cable
connection at J2 on the system
board. Then run the “Power-On
Self Test (POST) sequence” on
page 2-1.
If the LED buttons or any lights fail,
check connection J2. If the problem
remains, replace the scanner
assembly. Go to the “Scanner
assembly removal” on page 4-3.
If the problem still exists, replace the
system board. Go to the “System
board removal” on page 4-13.
Printer communication table
Symptom Action
Not able to print Test Page Check the USB cable and system
board cable connections. If okay,
replace system board. Go to the
“System board removal” on
page 4-13.
Diagnostic information 2-3
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Scanner problems
Symptom Action
• CCD does not move
• Lamp does not light
• Scanned images are faded, or
colors are dull, blurry or fuzzy.
Images are slanted or crooked
and the straight lines in the
image appear to be jagged or
uneven.
• Blank copies
Go to the “CCD module assembly
service check” on page 2-8.
Go to the “Scan/copy quality
service check” on page 2-16.
ADF module problems
Symptom Action
Does not feed paper Go to the “ADF module service
check” on page 2-17.
CCD lamp does not light Go to the “CCD module assembly
service check” on page 2-8.
Pictbridge problems
Symptom Action
Camera does not communicate
with printer
Check USB cable connection. Go to
“Pictbridge service check” on
page 2-9.
Paper feed problems
Symptom Action
• Fails to pick paper
• Picks more than one sheet of
paper
• Picks paper but fails to feed
• Paper jams
• Paper fails to exit
• Noisy paper feed
Go to the “Paper feed service
check” on page 2-11.
2-4 Service Manual
4409-XXX
Symptom Action
Envelopes fail to feed Go to the “Paper feed service
check” on page 2-11.
Paper skews Go to the “Paper path service
check” on page 2-13.
Power problems
Symptom Action
No power in machine; motors do
not operate
Go to the “Power service check”
on page 2-14.
Print quality problems
Symptom Action
• Voids in characters
• Light print
• Prints off the page
• Fuzzy print
• Carrier moves but no print
• Printhead dries prematurely
• Colors print incorrectly
• Vertical alignment off
• Ink smearing
• Vertical streaks on paper
• Print lines crowded
Go to the “Print quality service
check” on page 2-14.
Go to the “Paper feed service
check” on page 2-11.
Note: A failed media type detection sensor will give a “close rear
press Select” message. (A bad media detection sensor responses
identically to one detecting that the rear door is open).
Diagnostic information 2-5
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