Lexmark 4026-0XX User Manual
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4026-0XX
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Lexmark and Optra are trademarks of
Lexmark International, Inc., registered
in the United States and/or other
countries.
4026-0XX
Third Edition (April 1997)
The following paragraph does not apply to the United Kingdom or any country
where such provisions are inconsistent with local law: LEXMARK
INTERNATIONAL, INC. PROVIDES THIS PUBLICATION “AS IS” WITHOUT
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Comments may be addressed to Lexmark International, Inc., D22A/035-3,
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Lexmark and Optra are trademarks of Lexmark International, Inc., registered in the
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Other trademarks are the property of their respective owners.
Copyright Lexmark International, Inc. 1995, 1997
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
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clause at DFARS 252.227-7013 and in applicable FAR provisions: Lexmark
International, Inc., Lexington, KY 40550.
4026-0XX
Contents 1
NoticesandSafetyInformation ..........................vi
LaserNotice....................................... vi
SafetyInformation.................................. xvi
OzoneInformation................................. xix
Preface .............................................xx
GeneralInformation...................................1-1
Options.......................................... 1-1
Maintenance Approach.............................. 1-1
Tools Required For Service .......................... 1-1
Acronyms........................................ 1-2
DiagnosticInformation ................................2-1
Start............................................ 2-1
ServiceErrorCodes............................. 2-2
UserErrorMessageTable........................ 2-6
UserSecondaryErrorMessageTable............... 2-8
Power-OnSelfTest(POST)...................... 2-10
POSTSymptomTable.......................... 2-12
SymptomTable............................... 2-13
ServiceChecks................................... 2-15
ChargeBrushServiceCheck..................... 2-15
CoverInterlockServiceCheck.................... 2-16
D-RollAssemblyServiceCheck................... 2-16
ExitSensorServiceCheck....................... 2-17
FanServiceCheck............................. 2-17
ColdFuserServiceCheck....................... 2-18
HotFuserServiceCheck........................ 2-20
Input Sensor Service Check...................... 2-20
Low Voltage Power Supply Service Check . . . ....... 2-22
MainDriveMotorServiceCheck.................. 2-25
Operator Panel Service Check.................... 2-27
Optional Paper Tray Two Service Check............ 2-28
Paper Take-Up Solenoid Service Check ............ 2-32
ParallelPortServiceCheck...................... 2-34
Paper Feed Service Check ...................... 2-34
Paper Feed Frame Assembly Service Check . ....... 2-37
PrintQualityServiceCheck...................... 2-38
RegistrationServiceCheck...................... 2-44
TransferAssemblyServiceCheck................. 2-44
TransferCoronaServiceCheck................... 2-45
ROMSIMMServiceCheck ...................... 2-45
iii
DiagnosticAids ......................................3-1
Power-OnSelfTest(Post)........................... 3-1
Diagnostic Tests . ................................. 3-3
Printer Diagnostic Test . . ........................ 3-3
Service Diagnostic Test Page ..................... 3-4
UserModePrintTestPage....................... 3-6
Paper Feed Timing ............................. 3-8
FuserOperation................................ 3-9
ConfigurationMode............................ 3-10
Configuration Mode Operator Panel Overlay . . . ..... 3-10
Operator Panel Configuration Mode Button Definition . 3-11
HexTrace................................... 3-12
RestoringFactoryDefaults...................... 3-13
RepairInformation....................................4-1
Handling ESD-Sensitive Parts........................ 4-1
Adjustment Procedures ............................. 4-2
PrintRegistrationAdjustment..................... 4-2
RemovalProcedures............................... 4-3
Screw Identification Table........................ 4-3
BoardCageRemoval........................... 4-4
CoverRemovals............................... 4-4
ControllerBoardRemoval........................ 4-5
D-RollRemoval................................ 4-6
EngineBoardRemoval.......................... 4-6
ExitSensorRemoval............................ 4-6
ExitSensorFlagRemoval........................ 4-6
Exit Paper Feed Roller Assembly Removal........... 4-7
FanRemoval.................................. 4-7
FuserLampRemoval........................... 4-7
FuserLowerFrameAssemblyRemoval............. 4-8
Fuser Upper Frame Assembly Removal ............. 4-8
Fuser Paper Separator Removal................... 4-8
HVPSBoardRemoval........................... 4-9
HVPSCoverRemoval........................... 4-9
LeftSidePlateRemoval......................... 4-9
LVPSRemoval............................... 4-10
MainDriveMotorRemoval...................... 4-10
MainDrive/PaperFeedGearsRemoval............ 4-10
Manual Paper Feed Guide Plate Removal .......... 4-10
Operator Panel Removal. ....................... 4-11
Paper Entry Sensor Removal .................... 4-11
Paper Entry Sensor Flag Removal . . .............. 4-11
Paper Feed Frame Assembly Removal............. 4-12
iv
4026-0XX
Removal Procedures (continued)
Paper Feed Solenoid Removal . . . ................ 4-12
Paper Feed Input Tray Assembly Removal . . . ....... 4-12
Paper Lift Plate Assembly Removal................ 4-12
Paper Separator Removal ....................... 4-13
Printhead Removal............................. 4-13
Print Media Selection Lever Removal (06C/06F/071) . . 4-13
Second Paper Tray Option Connector Removal ...... 4-13
Thermal Fuse Removal (06A/06B/06D/06J/070) ...... 4-14
ThermostatRemoval(06C/06F/071)............... 4-14
ThermistorRemoval............................ 4-14
TransferUnitRemoval.......................... 4-14
ConnectorLocations ..................................5-1
Low Voltage Power Supply ....................... 5-1
High Voltage Power Supply ....................... 5-2
EngineBoard.................................. 5-3
SecondPaperTraySensorBoard(Option)........... 5-7
ControllerBoard................................ 5-7
Paper Exit Sensor ............................. 5-11
Paper Entry Sensor . . . ......................... 5-11
Paper Feed Solenoid . . ......................... 5-11
PartsCatalog ........................................6-1
HowToUseThisPartsCatalog....................... 6-1
Assembly1:Covers............................. 6-2
Assembly2:Frame ............................. 6-6
Assembly 3: Printhead. ......................... 6-12
Assembly 4: Paper Feed Input Tray................ 6-14
Assembly 5: Paper Feed Frame. . . ................ 6-16
Assembly6:Fuser............................. 6-18
Assembly7:Electronics......................... 6-22
Assembly8:TransferAssembly................... 6-26
Assembly 9: Option - Second Paper Drawer . . ....... 6-28
Assembly10:Options .......................... 6-34
Assembly 11: Miscellaneous ..................... 6-35
Index .............................................. X-1
v
4026-0XX
Notices and Safety Information
Laser Notice
The printer is certified in the U.S. to conform to the requirements of
DHHS 21 CFR Subchapter J for Class I (1) laser products, and
elsewhere is certified as a Class I laser product conforming to the
requirements of IEC 825.
Class I laser products are not considered to be hazardous. The
printer contains internally a Class IIIb (3b) laser that is nominally a 5
milliwatt gallium arsenidelaser operating in the wavelengthregion of
770-795 nanometers. The laser system and printer are designed so
there is never any human access to laser radiation above a Class I
level during normal operation, user maintenance, or prescribed
service condition.
vi Service Manual
4026-0XX
Laser product labels are located on the back of the printer and on
the printhead.
CLASS 1 LASER PRODUCT
LASER KLASSE1 NACH IEC825
LUOKAN 1 LASERLAITE
APPAREIL A LASER DE CLASSE1
TO IEC 825
Notices and Safety Information vii
4026-0XX
viii Service Manual
4026-0XX
Laser
Der Drucker erfüllt gemäß amtlicher Bestätigung der USA die
Anforderungen der Bestimmung DHHS (Department of Health and
Human Services) 21 CFR Teil J für Laserprodukte der Klasse I (1).
In anderen Ländern gilt der Drucker als Laserprodukt der Klasse I,
der die Anforderungen der IEC (International Electrotechnical
Commission) 825 gemäß amtlicher Bestätigung erfüllt.
Laserprodukte der Klasse I gelten als unschädlich. Im Inneren des
Druckers befindet sich ein Laser der Klasse IIIb (3b), bei dem es
sich um einen Galliumarsenlaser mit 5 Milliwatt handelt, der Wellen
der Länge 770-795 Nanometer ausstrahlt. Das Lasersystem und der
Drucker sind so konzipiert, daß im Normalbetrieb, bei der Wartung
durch den Benutzer oder bei ordnungsgemäßer Wartung durch den
KundendienstLaserbestrahlung, die die Klasse I übersteigen würde,
Menschen keinesfalls erreicht.
Avis relatif à l’utilisation de laser
Pour les Etats-Unis : cette imprimante est certifiée conforme aux
provisions DHHS 21 CFR alinéa J concernant les produits laser de
Classe I (1). Pour les autres pays : cette imprimante répond aux
normes IEC 825 relatives aux produits laser de Classe I.
Les produits laser de Classe I sont considérés comme des produits
non dangereux. Cette imprimante est équipée d’un laser de Classe
IIIb (3b) (arséniure de gallium d’une puissance nominale de 5
milliwatts) émettant sur des longueurs d’onde comprises entre 770
et 795 nanomètres. L’imprimante et son système laser sont conçus
pour impossible, dans des conditions normales d’utilisation,
d’entretien par l’utilisateur ou de révision, l’exposition à des
rayonnements laser supérieurs à des rayonnements de Classe I .
Notices and Safety Information ix
4026-0XX
Avvertenze sui prodotti laser
Questa stampante è certificata negli Stati Uniti per essere conforme
ai requisiti del DHHS 21 CFR Sottocapitolo J per i prodotti laser di
classe 1 ed è certificata negli altri Paesi come prodotto laser di
classe 1 conforme ai requisiti della norma CEI 825.
I prodotti laser di classe non sono considerati pericolosi. La
stampante contiene al suo interno un laser di classe IIIb (3b)
all’arseniuro di gallio della potenza di 5mW che opera sulla
lunghezza d’onda compresa tra 770 e 795 nanometri. Il sistema
laser e la stampante sono stati progettati in modo tale che le
persone a contatto con la stampante, durante il normale
funzionamento, le operazioni di servizio o quelle di assistenza
tecnica, non ricevano radiazioni laser superiori al livello della classe
1..
Avisos sobre el láser
Se certifica que, en los EE.UU., esta impresora cumple los
requisitos para los productos láser de Clase I (1) establecidos en el
subcapítulo J de la norma CFR 21 del DHHS (Departamento de
Sanidad y Servicios) y, en los demás países, reúne todas las
condiciones expuestas en la norma IEC 825 para productos láser de
Clase I (1).
Los productos láser de Clase I no se consideran peligrosos. La
impresora contiene en su interior un láser de Clase IIIb (3b) de
arseniuro de galio de funcionamiento nominal a 5 milivatios en una
longitud de onda de 770 a 795 nanómetros. El sistema láser y la
impresora están diseñados de forma que ninguna persona pueda
verse afectada por ningún tipo de radiación láser superior al nivel de
la Clase I durante su uso normal, el mantenimiento realizado por el
usuario o cualquier otra situación de servicio técnico.
x Service Manual
4026-0XX
Declaração sobre Laser
A impressora está certificada nos E.U.A. em conformidade com os
requisitos da regulamentação DHHS 21 CFR Subcapítulo J para a
Classe I (1) de produtos laser. Em outros locais, está certificada
como um produto laser da Classe I, em conformidade com os
requisitos da norma IEC 825.
Os produtos laser da Classe I não são considerados perigosos.
Internamente, a impressora contémum produto laser da ClasseIIIb
(3b), designado laser de arseneto de potássio, de 5 milliwatts
,operando numa faixa de comprimento de onda entre 770 e 795
nanómetros. O sistemaeaimpressoralaserforamconcebidosde
forma a nunca existir qualquer possiblidade de acesso humano a
radiação laser superior a um nível de Classe I durante a operação
normal, a manutenção feita pelo utilizador ou condições de
assistência prescritas.
Laserinformatie
De printer voldoet aan de eisen die gesteld worden aan een
laserprodukt van klasse I. Voor de Verenigde Staten zijn deze eisen
vastgelegd in DHHS 21 CFR Subchapter J, voor andere landen in
IEC 825.
Laserprodukten van klasse I worden niet als ongevaarlijk
aangemerkt. De printer is voorzien van een laser vanklasse IIIb
(3b), dat wil zeggen een gallium arsenide-laser van 5 milliwatt met
een golflengte van 770-795 nanometer. Het lasergedeelte en de
printer zijn zo ontworpen dat bij normaal gebruik, bij onderhoud of
reparatie conform de voorschriften, nooit blootstelling mogelijk is
aan laserstraling boven een niveau zoals voorgeschreven is voor
klasse 1.
Notices and Safety Information xi
4026-0XX
Lasermeddelelse
Printeren er godkendt som et Klasse I-laserprodukt, i
overenstemmelse med kravene i IEC 825.
Klasse I-laserprodukter betragtes ikke som farlige. Printeren
indeholder internt en Klasse IIIB (3b)-laser, der nominelt er en 5
milliwatt galliumarsenid laser,som arbejder på bølgelængdeområdet
770-795 nanometer. Lasersystemet og printeren er udformet
således, at mennesker aldrig udsættes for en laserstråling over
Klasse I-niveau ved normal drift, brugervedligeholdelse eller
obligatoriske servicebetingelser.
Huomautus laserlaitteesta
Tämä kirjoitin on Yhdysvalloissa luokan I (1) laserlaitteiden DHHS
21 CFR Subchapter J -määrityksen mukainen ja muualla luokan I
laserlaitteiden IEC 825 -määrityksen mukainen.
Luokan I laserlaitteiden ei katsota olevan vaarallisia käyttäjälle.
Kirjoittimessa on sisäinen luokan IIIb (3b) 5 milliwatin
galliumarsenidilaser, joka toimii aaltoalueella 770 - 795 nanometriä.
Laserjärjestelmä ja kirjoitin on suunniteltu siten, että käyttäjä ei
altistu luokan I määrityksiä voimakkaammalle säteilylle kirjoittimen
normaalin toiminnan, käyttäjän tekemien huoltotoimien tai muiden
huoltotoimien yhteydessä.
VARO! Avattaessa ja suojalukitus ohitettaessa olet alttiina
näkymättömälle lasersäteilylle. Älä katso säteeseen.
VARNING! Osynlig laserstrålning när denna del är öppnad och
spärren är urkopplad. Betrakta ej strålen.
xii Service Manual
4026-0XX
Laser-notis
Denna skrivare är i USA certifierad att motsvara kraven i DHHS 21
CFR, underparagraf J för laserprodukter av Klass I (1). I andra
länder uppfyller skrivaren kraven för laserprodukter av Klass I enligt
kraven i IEC 825.
Laserprodukter i Klass I anses ej hälsovådliga. Skrivaren har en
inbyggd laser av Klass IIIb (3b) som består av en laserenhet av
gallium-arsenid på 5 milliwatt som arbetar i våglängdsområdet 770795 nanometer. Lasersystemet och skrivaren är utformade så att det
aldrig finns risk för att någon person utsätts för laserstrålning över
Klass I-nivå vid normal användning, underhåll som utförs av
användaren eller annan föreskriven serviceåtgärd.
Laser-melding
Skriveren er godkjent i USA etter kravene i DHHS 21 CFR,
underkapittel J, for klasse I (1) laserprodukter, og er i andre land
godkjent som et Klasse I-laserprodukt i samsvar med kravene i IEC
825.
Klasse I-laserprodukter er ikke å betrakte som farlige. Skriveren
inneholder internt en klasse IIIb (3b)-laser, som består av en
gallium-arsenlaserenhet som avgir stråling i bølgelengdeområdet
770-795 nanometer. Lasersystemet og skriveren er utformet slik at
personer aldri utsettes for laserstråling ut over klasse I-nivå under
vanlig bruk, vedlikehold som utføres av brukeren, eller foreskrevne
serviceoperasjoner.
Notices and Safety Information xiii
4026-0XX
Avís sobre el Làser
Segons ha estat certificat als Estats Units, aquesta impressora
compleix els requisits de DHHS 21 CFR, apartat J, pels productes
làser de classe I (1), i segons ha estat certificat en altres llocs, és un
producte làser de classe I que compleix els requisits d’IEC 825.
Els productes làser de classe I no es consideren perillosos. Aquesta
impressora conté un làser de classe IIIb (3b) d’arseniür de gal.li,
nominalment de 5 mil.liwats, i funciona a la regió de longitud d’ona
de 770-795 nanòmetres. El sistema làser i la impressora han sigut
concebuts de manera que mai hi hagi exposició a la radiació làser
per sobre d’un nivell de classe I durant una operació normal, durant
les tasques de manteniment d’usuari ni durant els serveis que
satisfacin les condicions prescrites.
xiv Service Manual
4026-0XX
Japanese Laser Notice
Chinese Laser Notice
Notices and Safety Information xv
4026-0XX
Korean Laser Notice
Safety Information
• 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.
• The safety features of some parts may not always be obvious.
Therefore, replacement parts must have the identical or
equivalent characteristics as the original parts.
Sicherheitshinweise
• Die Wartungsinformationen für dieses Produkt sind
ausschließlich für die Verwendung durch einen
Wartungsfachmann bestimmt.
xvi Service Manual
4026-0XX
• 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.
• Ersatzteile müssen gleiche oder gleichwertige Merkmale wie die
Originalteile aufweisen, da nicht immer offensichtlich ist, welche
Teile des Geräts Sicherheitsmerkmale aufweisen.
Consignes de Sécurité
• 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.
• Les normes de sécurité de certaines pièces n'étant pastoujours
explicites, les pièces de rechange doivent être identiques ou
conformes aux caractéristiques des pièces d'origine.
Norme di sicurezza
• 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.
• Poiché non tutti i pezzi di ri cambio garantiscono la stessa
sicurezza, questi devono avere caratteristiche identiche o
equivalenti a quelle dei pezzi originali.
Pautas de Seguridad
• 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
Notices and Safety Information xvii
4026-0XX
personales durante e l desmontaje y la reparación de la
máquina. El personal cualificado debe ser consciente de este
peligro y tomar las precauciones necesarias.
• Los dispositivos de seguridad de algunas piezas no siempre
pueden reconocerse a simple vista. Por lo tanto, los recambios
deben poseer características idénticas o equivalentes a las de
las piezas originales.
Informações de Segurança
• 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.
• Os dispositivos de segurança de algumas peças poderão não
ser sempre suficientemente evidentes. Assim, as peças
sobressalentes devem possuir características idênticas ou
equivalentes às peças originais.
Informació de Seguretat
• 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.
• Les característiques de seguretat d’algunes de les peces poden
no ser òbvies. Pertant, les característiques dels recanvis hauran
de ser idèntiques o equivalents a les de les peces originals.
xviii Service Manual
4026-0XX
Chinese Safety Information
Korean Safety Information
Ozone Information
This product does not produce measurable amounts of ozone gas.
Notices and Safety Information xix
4026-0XX
Preface
This manual is divided into the following chapters:
• “General Information” contains a general description of the
printer, options, and the maintenanceapproach used to repairit.
General environmental and safety instructions as well as special
tools and test equipment are listed in this chapter.
• “Diagnostic Information” contains error code table, symptom
table, and service checks used toisolate failing field replaceable
units (FRUs).
• “Diagnostic Aids” contains tests and checks used to locate or
repeat symptoms of printer problems.
• “Repair Information” provides instructions for making printer
adjustments and removing and installing FRUs.
• “Connector Locations” uses illustrations to identify the major
components and test points on the printer.
• “Parts Catalog” contains illustrations and part numbers for
individual FRUs.
xx Service Manual
4026-0XX
1. General Information
This printer is a letter-quality page printer designed to attach to an
IBM PersonalComputer or other computers compatible with the IBM
Personal Computer (with 386 processor or higher).
The printer is available in models 4026-06A, 06C, 06D, and 06J
without Flash memory and models 4026-06B and 06F with Flash
memory. Model upgrade is not available.
The printer can print in various pitches and has bit image graphics
capability, allowing the user to print advanced graphics. Model
4026-06D has PostScript Level 2 emulation.
The model 4026-070 printer includes a manual input guide,
additional memory and font selections. The 4026-071 is a label
printing model which also includes a manual input guide, additional
memory and font selections.
Options
Memory upgrade options are 1MB, 2MB, and 4MB. The paper tray
option is a 250 sheet secondary paper tray. Contact your point of
purchase for options available in your country.
Maintenance Approach
The diagnostic information in this manual leads you to the correct
field replaceable unit (FRU) or part. Use the error code charts,
symptom index, 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.
Tools Required For Service
Magnetic Phillips Screwdriver
General Information 1-1
4026-0XX
Acronyms
CSU Customer Setup
DRAM Dynamic Random Access Memory
EP Electrophotographic Process
EPROM Erasable, Programmable Read-Only
Memory
ESD Electrostatic Discharge
FRU Field Replaceable Unit
HVPS High Voltage Power Supply
LASER Light Amplification by Stimulated Emission
of Radiation
LCD Liquid Crystal Display
LED Light-Emitting Diode
LVPS Low Voltage Power Supply
MROM Masked Read Only Memory
NVRAM Nonvolatile Random Access Memory
OEM Original Equipment Manufacturer
PC Photoconductor
POST Power-On Self Test
ROM R ead Only Memory
SIMM Single In-Line Memory Module
SRAM Static Random Access Memory
UPR Used Parts Return
V ac Volts alternating current
V dc Volts direct current
1-2
4026-0XX
2. Diagnostic Information
Start
CAUTION:
interlock switch and the printhead shutter actuator at the same
time. To perform some of the service checks and tests, such as
troubleshooting paper feed problems, you need to actuate the top
coverinterlock switch with the covers opened or removed and power
applied to the machine. It is important for personal safety that you
DO NOT, FOR ANY REASON
when power is on.
Remove power from the printer before you connect or disconnect
any cable or electronic board or assembly for personal safety and to
prevent damage to the printer.
Use the service error code, user error message, symptom table,
service checks, and diagnostic aids in this chapter to determine the
corrective action necessary to repair a malfunctioning printer.
The lights on the operator panel can indicate either a user error
message or service error message. When a service error occurs the
printer stops printing and all operator panel LEDs blink in a
continuous pattern, indicating a service error, until the printer is
powered off. If all operator panel LEDs are blinking, go to the
“Service Error Codes” on page 2-2.
When a user error message occurs, one or two operator panel LEDs
are on solid or blinking. Go to the “User Error Message Table” on
page 2-6.
NEVER
manually actuate or disable the top cover
, disable the printhead shutter actuator
If your machine does not have a service error code and does not
completePOST,gotothe“POST Symptom Table” on page 2-12.If
your machine completes POST without an error, and you have a
symptom, go to the “Symptom Table” on page 2-13. Locate your
symptom and take the appropriate action.
If a service error code appears while you are working on the
machine, go to the “Service Error Codes” on page 2-2 andtakethe
indicated action for that error.
Diagnostic Information 2-1
4026-0XX
Service Error Codes
When a service error occurs the printer stops printing and all
operator panel LEDs blink in a continuous pattern, indicating a
service error, until the printer is powered off.
Press and release the operator panel button to display the service
error code. Locate the blinking LEDs in the following table and take
the indicated action.
Blinking Operator Panel LED Action
Software Service Error Code Run the Printer Diagnostic Test to
diagnose between the ROM SIMM
and the controller board. If no other
error code displays after the test
completes, replace the controller
board.
Fuser Failure Error Go to the “Cold Fuser Service
Mirror Motor Error The Polygon Mirror Motor is not
Laser Diode Failure Replace the printhead assembly. If
Check” on page 2-18.
rotating during printing. Replace the
engine board. If this does not correct
the problem, replace the printhead
assembly.
this does not correct the problem,
replace the engine board.
2-2
4026-0XX
Blinking Operator Panel LED Action
Controller Card Failure Replace Controller board
Optional Memory Error Replace the optional memory SIMM.
If this does not correct the problem,
replace the controller board.
Fan Failure Error Go to the “Fan Service Check” on
page 2-17.
ROM Checksum Error Replace the ROM SIMM. If this does
not correct the problem, replace the
controller board.
Base Memory Error Replace Controller board
Diagnostic Information 2-3
4026-0XX
Blinking Operator Panel LED Action
NVRAM Failure Error Replace Controller board
ASIC Register Failure Error Replace Controller board
ASIC SRAM Failure Error Replace Controller board
Flash Memory Failure Error Replace the ROM SIMM w/Flash. If
this does not correct the problem,
replace the controller board.
Font Checksum Failure Error Replace the ROM SIMM. If this does
not correct the problem, replace the
controller board.
2-4
4026-0XX
Blinking Operator Panel LED Action
Engine Board Communications
Failure Error
Controller SRAM Failure Error Replace Controller board
Replace the engine board. If this
does not correct the problem,
replace the controller board.
Diagnostic Information 2-5
4026-0XX
User Error Message Table
When a user error message occurs the printer stops printing and
one or two operator panel LEDs are on solid or blinking until the
printer is powered off. Locate the printer’s LED Status in the
following table and take the indicated action.
User Error Message LED Status Action
Paper Jam Paper Jam on solid Open cover and clear
anypaperjams.Close
the top cover. If the
error message is still
present, go to the
“Paper Feed Service
Check” on page 2-34.
Load Manual Paper/
Envelope
Load Paper/Load
Envelope
Top Cover Open Error on solid Close the top cover.If
LoadPaperblinksand
Press Button on solid
Load Paper on solid
andPressButtonon
solid
Load media into the
manual slot and push
the operator panel
buttontoresume
printing or do a front
panel reset by pressing and holding the
operator panel button
for more than three
seconds.
Load media in the
appropriate paper tray
and push the operator panel button to
resume printing or do
a front panel reset by
pressing and holding
the operator panel
button for more than
three seconds.
the error LED remains
on solid and POST
does not continue, go
to the “Cover Inter-
lock Service Check”
on page 2-16
2-6
4026-0XX
User Error Message LED Status Action
Memory Full/Complex Page/Resolution
Reduction Warning/
Data Transmission
Error
Flash Memory Full Error blinks and Press
Error on solid and
Press Button on solid
Buttononsolid
The printer memory is
full or the page is too
complex to print. The
printer is forced to
reduce the resolution
of a formatted page to
300 dpi before printing, or the printer is
unableto maintain the
required data transfer
rate. Go to the “User
Secondary Error Message Table” on
page 2-8.
This condition only
occurs when the
Flash SIMM is
installed. (4026-06B
or 4026-06F) Go to
the “User Secondary
Error Message Table”
on page 2-8.
Diagnostic Information 2-7
4026-0XX
User Secondary Error Message Table
Press and release the operator panel button two times to display the
user secondary error LED status. Each press and release action
must be performed within a half second. Locate the printer’s LED
status in the following table and take the indicated action.
User Error Message LED Status Action
Complex Page Ready, Error, and
Press Button on solid
Memory Full Ready, Data, Error,
andPressButtonon
solid
Switch the printing
mode to a different
printing mode using
the Lexmark driver for
Windows, or push the
operator panel button
to resume printing, or
do a front panel reset
by pressing and holding the operator panel
button for more than
three seconds.
Change the printing
mode to Quick Print
Plus or reduce the
complexity of the job
or the resolution, or
push the operator
panel button to
resume printing, or do
a front panel reset by
pressing and holding
the operator panel
button for more than
three seconds.
2-8
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