Page 3 - iii; Table of Contents
iii 4044-XXX Table of Contents Notices and Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Laser Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vSafety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 4 - iv; Service Manual
iv Service Manual 4044-XXX Removal Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Screw Identification Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 5 - Notices and Safety Information; Laser Notice
v 4044-XXX 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 produc...
Page 6 - vi; Laser Advisory Label
Page 7 - vii; Class 1 Laser Statement Label
Page 8 - viii; Laser
viii 4044-XXX 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 I...
Page 9 - ix; Avvertenze sui prodotti laser
ix 4044-XXX 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...
Page 11 - xi; Lasermeddelelse
xi 4044-XXX 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 bø...
Page 12 - xii
xii 4044-XXX Laser-notis Denna skrivare är i USA cer tifierad 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. Skrivar...
Page 13 - xiii; Avís sobre el Làser
xiii 4044-XXX 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 82...
Page 14 - xiv; Japanese Laser Notice
xiv 4044-XXX Japanese Laser Notice Chinese Laser Notice
Page 15 - xv; Korean Laser Notice; This product is designed, tested and approved to meet strict
xv 4044-XXX Korean Laser Notice 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 replacem...
Page 16 - xvi; Consignes de Sécurité; Ce produit a été conçu, testé et approuvé pour respecter les; Norme di sicurezza; Le informazioni riguardanti la manutenzione di questo
xvi 4044-XXX Consignes de Sécurité • Ce produit a été conçu, testé et approuvé pour respecter les normes strictes de sécurité globale lors de l'utilisation de composants Lexmark spécifiques. Les caractéristiques de sécurité de certains éléments ne sont pas toujours évidentes. Lexmark ne peut être te...
Page 17 - xvii; Sicherheitshinweise; Die Wartungsinformationen für dieses Produkt sind; Pautas de Seguridad; Este producto se ha diseñado, verificado y aprobado para
xvii 4044-XXX Sicherheitshinweise • Dieses Produkt und die zugehörigen Komponenten wurden entworfen und getestet, um beim Einsatz die weltweit gültigen Sicherheitsanforderungen zu erfüllen. Die sicherheitsrelevanten Funktionen der Bauteile und Optionen sind nicht immer offensichtlich. Sofern Teile e...
Page 18 - xviii; Informações de Segurança
xviii 4044-XXX Informações de Segurança • Este produto foi concebido, testado e aprovado para satisfazer os padrões globais de segurança na utilização de componentes específicos da Lexmark. As funções de segurança de alguns dos componentes podem não ser sempre óbvias. A Lexmark não é responsável pel...
Page 19 - xix; Chinese Safety Information
xix 4044-XXX Chinese Safety Information Korean Safety Information
Page 20 - xx
Page 21 - General Information; Options; Flash memory options of 1MB, 2MB and 4MB
General Information 1-1 4044-XXX 1. General Information This printer is a letter-quality laser page printer designed to attach to an IBM Personal Computer or other computers compatible with the IBM Personal Computer (with 386 processor or higher) and Macintosh Computers via the USB connection. Optio...
Page 22 - Acronyms
1-2 Service Manual 4044-XXX 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 Emissio...
Page 23 - Diagnostic Information; Start; your symptom and take the appropriate action.
Diagnostic Information 2-1 4044-XXX 2. Diagnostic Information Start CAUTION: NEVER manually actuate or disable the top cover 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...
Page 24 - Service Error Codes; Primary Service Error Codes; take
2-2 Service Manual 4044-XXX Service Error Codes Primary 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 d...
Page 27 - Secondary Service Error Codes; Blinking Operator Panel LED
Diagnostic Information 2-5 4044-XXX Secondary Service Error Codes For some service error codes, a second service error code is used to further describe the error. When a service error occurs, pressing the operator panel button after viewing the primary service error code displays the secondary servi...
Page 28 - User Error Message Table; Primary User Error Message Table; User Error Message
2-6 Service Manual 4044-XXX User Error Message Table Primary 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 t...
Page 30 - Secondary User Error Message Table
2-8 Service Manual 4044-XXX Secondary User 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 t...
Page 32 - Symptom Tables; POST Symptom Table; Symptom
2-10 Service Manual 4044-XXX Symptom Tables POST Symptom Table Base Printer Symptom Table Symptom Action The main motor, cooling fan and fuser do not come on. Go to “Cover Open Switch Service Check” on page 2-13 . POST completes except one or more LEDs do not come on. Go to the “Operator Panel Servi...
Page 34 - Service Checks; Cooling Fan Service Check; FRU
2-12 Service Manual 4044-XXX Service Checks Note: All service checks which involve measuring voltages of the circuit boards (except the controller board) must be performed with the engine/LVPS to controller board cable disconnected and the printer positioned on its left side. This provides the servi...
Page 35 - Cover Open Switch Service Check
Diagnostic Information 2-13 4044-XXX Cover Open Switch Service Check Note: Make sure a toner cartridge is installed and the cover closes all the way, engaging the cover open switch lever. The lever can easily be positioned incorrectly if the top cover has been removed and replaced. FRU Action Models...
Page 36 - Dead Machine Service Check; 00 V ac - 127 V ac for the low voltage model printer
2-14 Service Manual 4044-XXX Dead Machine Service Check Note: Check the AC line voltage. The voltage should be within the following limits: 100 V ac - 127 V ac for the low voltage model printer 200 V ac - 240 V ac for the high voltage model printer Model E312HVPS Measure the voltages at CN2 of the H...
Page 39 - Fuser Service Check; Cold Fuser Service Check
Diagnostic Information 2-17 4044-XXX Fuser Service Check Cold Fuser Service Check When toner is partially fused to the paper, it is usually caused by low fuser temperature. Avoid handling the lamp as much as possible as it is easily broken. Be careful not to touch the glass housing with bare hands a...
Page 40 - The fuser lamp does light
2-18 Service Manual 4044-XXX The fuser lamp does light FRU Action Model 310Thermistor If the fuser lamp comes on and a fuser failure LED error code displays, be sure the thermistor is contacting the hot roll and the thermistor cable is firmly seated in connector CN1 on the LVPS board. Check for exce...
Page 41 - The fuser lamp does not light
Diagnostic Information 2-19 4044-XXX The fuser lamp does not light FRU Action Model E310Fuser LampLamp CableThermistorLVPS Turn the printer off and disconnect the fuser lamp wires from the fuser. Check for continuity across the fuser lamp wire contacts. If there is continuity, go to step 1: Continui...
Page 43 - Hot Fuser Service Check; Main Motor Service Check
Diagnostic Information 2-21 4044-XXX Hot Fuser Service Check Main Motor Service Check FRU Action Model E310Fuser Thermistor Disconnect the thermistor cable from the LVPS. Measure the resistance across CN1-1 and CN1-2 of the thermistor cable. Replace the thermistor if the resistance is lower than 1k ...
Page 45 - Operator Panel Service Check; Run POST and check each LED for proper operation.
Diagnostic Information 2-23 4044-XXX Operator Panel Service Check Inspect the operator panel cable for damage. Make sure the cable is plugged in securely. Run POST and check each LED for proper operation. FRU Action Models E310 & E312Operator PanelOperator Panel Cable If more than one LED does n...
Page 46 - Operator Panel Button Service Check; Paper Jam error indication during POST
2-24 Service Manual 4044-XXX Operator Panel Button Service Check Paper Feed Service Check Paper Jam error indication during POST FRU Action Models E310 & E312Operator PanelOperator Panel Cable Disconnect the operator panel from the operator panel cable. Check the continuity between U5-1 and U5-2...
Page 47 - Paper picks during POST and/or continuously
Diagnostic Information 2-25 4044-XXX Paper picks during POST and/or continuously Paper picks but stops about an inch down the page Paper picks but stops half way through the printer FRU Action Models E310 & E312Pick Roller ClutchSolenoid Check the pick roller clutch for wear. The solenoid intera...
Page 49 - Paper never picks
Diagnostic Information 2-27 4044-XXX Paper never picks Paper occasionally picks or picks multiple sheets at once FRU Action Models E310 & E312Paper Tray Make sure the paper tray is correctly installed. The black mylar guide sheet in the front of the tray must be positioned in the paper path just...
Page 50 - Print Quality Service Check; Blank page
2-28 Service Manual 4044-XXX Paper "trees", wrinkles, stacks poorly or curls Print Quality Service Check Blank page FRU Action Models E310 & E312Transfer Roller This problem is most likely due to a worn transfer roller. A worn transfer roller causes the printer to run hotter than require...
Page 51 - Black page
Diagnostic Information 2-29 4044-XXX Black page Note: Incorrect laser exposure or incorrect charging of the photoconductor causes an all black page. FRU Action Models E310 & E312HVPS Contacts Check the contacts for contamination and correct installation. Replace as necessary. Model E310Engine/LV...
Page 52 - Heavy background
2-30 Service Manual 4044-XXX Heavy background Poor development or poorly charged toner particles cause excessive background. This is more noticeable as the toner cartridge nears end of life. FRU Action Models E310 & E12Toner Cartridge Make sure toner cartridge is correctly installed and the high...
Page 53 - Variation in image density horizontally across page
Diagnostic Information 2-31 4044-XXX Partial blank image/white spots (no periodic pattern) Variation in image density horizontally across page FRU Action Toner Cartridge Remove the toner cartridge and gently shake the assembly to evenly distribute the toner. If toner cartridge is low, try a new one....
Page 54 - Periodic irregularity down page
2-32 Service Manual 4044-XXX Periodic irregularity down page FRU Action PC Drum (Toner Cartridge) Distance Between Irregularity 94.5 mm The PC drum or gear driving the PC drum may be contaminated or damaged. Inform the customer to replace the toner cartridge. Charge Roller (Toner Cartridge) Distance...
Page 55 - Poor fusing of image
Diagnostic Information 2-33 4044-XXX Poor fusing of image Light print FRU Action Fuser Lamp The fuser may not be operating at the proper temperature to fuse the toner to the paper. Go to the “Cold Fuser Service Check” on page 2-17 . Paper Make sure recommended paper is being used. FRU Action Toner C...
Page 56 - White or black lines or bands
2-34 Service Manual 4044-XXX White or black lines or bands Toner on back of page Incorrect characters print Make sure the correct printer driver software is installed. Incorrect software can cause incorrect characters to print and the image may not fit the page. FRU Action Toner CartridgePaper Feed ...
Page 57 - Parallel Port Service Check
Diagnostic Information 2-35 4044-XXX Parallel Port Service Check 1. Perform a print test to make sure the printer prints correctly. 2. Be sure the printer cable is designed for bidirectional printing. 3. Be sure the user application is set up correctly. Improper set up can prevent establishing a com...
Page 59 - Memory Test; “Service Error Codes” on; Diagnostic Test
Diagnostic Aids 3-1 4044-XXX 3. Diagnostic Aids This chapter explains the tests and procedures you can run to identify printer failures and verify that repairs have corrected the problem. Memory Test The following tests run sequentially when performing this test: Standard Memory Test Optional Memory...
Page 60 - Print Quality Test
3-2 Service Manual 4044-XXX Print Quality Test There are three print quality test pages. The first page displays the installed printer base code level and user default settings for the following: Top Margin Offset Left Margin Offset Printer Page Count Installed Memory PQET Setting (on/off) Toner Sav...
Page 62 - Term
3-4 Service Manual 4044-XXX Operator Panel Configuration Mode Button Definition Perform the following steps to enter the configuration mode: 1. Turn the printer power off. 2. Open the top cover. 3. Turn the printer power on. 4. When the Error LED comes on solid, double-click the operator panel butto...
Page 66 - Parallel Mode 1
3-8 Service Manual 4044-XXX 3. The current PPDS setting is indicated by the Off/On/Auto (Press Button) LED. When the LED is *off, the PPDS is set to inactive. When the LED is on, the PPDS is set to active. Perform a brief button press to select the PPDS setting. 4. Perform a long button press. All L...
Page 68 - USB Port
3-10 Service Manual 4044-XXX available on the parallel port. Each increment of the strobe adjust value means the strobe is sampled 50ns longer. Perform the following steps to change the Parallel Strobe Adjust: 1. Enter the configuration mode. 2. Perform a double click button press seven times. This ...
Page 69 - USB NPA; Hex Trace
Diagnostic Aids 3-11 4044-XXX USB NPA USB NPA mode allows for two way communication between the host and the printer. Perform the following steps to change the USB NPA setting: 1. Enter the configuration mode. 2. Perform a double click button press nine times. This moves to the USB NPA mode item on ...
Page 70 - Restoring Factory Defaults
3-12 Service Manual 4044-XXX 4. When the Error LED comes on solid, double-click the opera- tor panel button. 5. Once the Error and Press Button LEDs start to blink, close the top cover. 6. The Ready LED comes on solid and the Error and Press Button LEDs continue blinking. 7. Double-click the operato...
Page 71 - Engine Clean Cycle
Diagnostic Aids 3-13 4044-XXX Engine Clean Cycle The Engine Clean Cycle function prints one blank page in a special cleaning mode. The cleaning mode helps eliminate small specs of toner present in the background when printing. Perform the following steps to perform the Engine Clean Cycle: 1. Turn th...
Page 73 - Diagnostic Aids; Paper Path
Page 75 - Repair Information; CAUTION: Read the following before handling electronic parts.; Handling ESD-Sensitive Parts
Repair Information 4-1 4044-XXX 4. Repair Information CAUTION: 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 in...
Page 76 - Removal Procedures; Screw Identification Table; Front Cover and Face Up Cover; Press the cover inward to release it and pull it forward.
4-2 Service Manual 4044-XXX Removal Procedures CAUTION: Be sure to unplug the power cord whenever you are working on the printer with one of the covers removed. Be sure to remove the print cartridge before you perform removal procedures. Screw Identification Table Covers Front Cover and Face Up Cove...
Page 79 - Rear and Top Cover; Remove the three screws, press the retaining tabs and remove
Repair Information 4-5 4044-XXX Rear and Top Cover 1. Remove the three screws, press the retaining tabs and remove the rear cover. 2. Remove the front cover and face up cover. 3. Remove the two screws and remove the top cover.
Page 80 - Side Covers; Remove the two screws securing the rear of each side cover.
4-6 Service Manual 4044-XXX Side Covers 1. Remove the front cover, face up cover, top cover and rear cover. 2. Remove the two screws securing the rear of each side cover. 3. Release the side cover tabs as shown and remove the left and right side covers.
Page 81 - Frame Assembly; Remove the two screws and remove the solenoid.
Repair Information 4-7 4044-XXX Frame Assembly 1. Remove all covers. 2. Remove the HVPS. 3. Remove the two screws and remove the solenoid. 4. Remove the six screws and remove the frame assembly.
Page 82 - Fuser Assembly; Release the two snaps holding the fuser down.
4-8 Service Manual 4044-XXX Fuser Assembly 1. Remove all covers. 2. Remove the wire cover mounting screw (A). 3. Remove the two fuser lamp wire mounting screws (B). 4. Unplug the connector from the engine/LVPS board. 5. Remove the two fuser mounting screws (C). 6. Release the two snaps holding the f...
Page 84 - HVPS; Remove the HVPS board mounting screws.
4-10 Service Manual 4044-XXX HVPS 1. Remove all covers. 2. Remove the HVPS board mounting screws.
Page 91 - Main Drive Assembly; Remove the six main drive assembly mounting screws.
Repair Information 4-17 4044-XXX Main Drive Assembly 1. Remove all covers. 2. Remove the six main drive assembly mounting screws. 3. Unplug the connector and remove the main drive assembly.
Page 92 - Pick Roll Assembly
4-18 Service Manual 4044-XXX Pick Roll Assembly 1. Remove all the covers. 2. Remove the high voltage power supply. 3. Remove the roller bearing.
Page 94 - Printhead Assembly; Unplug all the connectors from the printhead.
4-20 Service Manual 4044-XXX Printhead Assembly 1. Remove the top cover. 2. Unplug all the connectors from the printhead. 3. Remove the four mounting screws and remove the printhead. Note: Be sure to transfer the snap-on torroids when replacing the printhead cable.
Page 95 - Transfer Roll; Remove the front cover and face up cover.
Repair Information 4-21 4044-XXX Transfer Roll 1. Remove the front cover and face up cover. 2. Remove the black cover on the left end of the transfer roll. 3. Press the latches on the bearings to release them from the lower frame. 4. Lift the transfer roll from the printer.
Page 97 - Connector Locations; Connector
Connector Locations 5-1 4044-XXX 5. Connector Locations Controller Board (model E310/E312) Connector Pin No. Signal J1 Printhead 1 N/A 2 Ground U5 Operator Panel(signals at idle) 1 Ground 2 +5 V dc 3 +5 V dc 4 N/A 5 +5 V dc 6 Ground J7 Engine/LVPS Board 1 +5 V dc 2 +5 V dc 3 +5 V dc 4 +5 V dc 5 +5 V...
Page 121 - Parts Catalog; How To Use This Parts Catalog; INDENTURE RELATIONSHIP OF PARTS
Parts Catalog 6-1 4044-XXX 6. Parts Catalog How To Use This Parts Catalog • SIMILAR ASSEMBLIES: If two assemblies contain a majority of identical parts, they are shown on the same list. Common parts are shown by one index number. Parts peculiar to one or the other of the assemblies are listed separa...
Page 134 - Assembly 4: Main Drive
6-14 Service Manual 4044-XXX Assembly 4: Main Drive
Page 136 - Assembly 5: Paper Feed
6-16 Service Manual 4044-XXX Assembly 5: Paper Feed
Page 147 - Assembly 8: Miscellaneous; Units
Parts Catalog 6-27 4044-XXX Assembly 8: Miscellaneous Asm-Index Part Number Units Description 8 1 Parts Packet, Fasteners PP 12G0101 3 o Screw, Type 1 (m3x10) 2 o Screw, Type 2 (m4x10) 6 o Screw, Type 3 (m3x10) 2 o Screw, Type 4 (m3x6) 1 o Clip, E 8 1 Parts Packet, Gears PP 12G0102 1 o Gear, Drive F...
Page 149 - Index
Index I-1 4044-XXX Index A Acronyms 1-2 B Base Printer Symptom Table 2-10 C Configuration Mode 3-3 Configuration Mode Settings 3-6 CRLF/LFCR 3-8 Parallel Mode 1 3-8 Parallel Mode 2 3-9 Parallel NPA 3-6 Parallel Port 3-6 Parallel Protocol 3-7 Parallel Strobe 3-9 PPDS 3-7 USB NPA 3-11 USB Port 3-10 Co...
Page 150 - Part Numbers
I-2 Service Manual 4044-XXX Printer Operation 3-14 R Removals 4-2 Covers 4-2 Engine/LVPS Board (model E310) 4-13 Engine/LVPS Board (model E312) 4-15 Frame Assembly 4-7 Fuser Assembly 4-8 HVPS 4-10 Interconnect Board 4-12 Main Drive Assembly 4-17 Pick Roll Assembly 4-18 Printhead Assembly 4-20 Transf...
Page 154 - BUSINESS REPLY MAIL
NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — C u t Along L in e P O S TAG E W I L L B E PA I D B Y A D D R E S S E E L E X M AR K I N T ER N AT I O N AL IN CD E PA RT M E N T D 2 2 A BU I...
