Reproduction in any manner whatsoever without the written permission of Dell Inc.is strictly forbidden. Trademarks used in this text: Dell and the DELL logo are trademarks of Dell Inc. Other trademarks and trade names may be used in this document to refer to the entities claiming the marks and names of their products.
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 60825-1.
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 60825-1 relatives aux produits laser de Classe I.
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 60825-1 para productos láser de Clase I (1).
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 60825-1. Laserprodukten van klasse I worden niet als ongevaarlijk aangemerkt. De printer is voorzien van een laser van klasse IIIb (3b), dat wil zeggen een gallium arsenide-laser van 5 milliwatt met een golflengte van 770-795 nanometer.
Huomautus laserlaitteesta Tämä kirjoitin on Yhdysvalloissa luokan I (1) laserlaitteiden DHHS 21 CFR Subchapter J -määrityksen mukainen ja muualla luokan I laserlaitteiden IEC 60825-1 -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.
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 60825-1. 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.
Japanese Laser Notice Chinese Laser Notice Service Manual...
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.
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.
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...
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...
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 MFP and the maintenance approach used to repair it. Special tools and test equipment are listed, as well as general environmental and safety instructions.
1. General information The Lexmark™ E238, E240, E240n, E340, and E342n printers are monochrome laser printers designed for single users or small workgroups. Models There are five models: • E238—16MB memory standard, a USB (universal serial bus) port, a parallel port, and prints 25 pages per minute on letter-size paper (24 ppm on A4).
Overview of the operator panels There are two available operator panels. Models E238, E240, and E240n These models have six lights and two buttons. See “Diagnostics—E238, E240, and E240n” on page 2-2 for more information. Continue (also a light) Cancel Ready Toner Low / Replace PC Kit...
Models E340 and E342n These models have LCD operator panel. See page “Diagnostics—E340 and E342n” on page 2-50. Overview of the operator panel • Press Go to resume printing. • Press Menu to move forward and backward through the menu selections.
Tips on preventing jams You can avoid most paper jams by correctly loading paper and specialty media. The following hints can help you avoid paper jams: • Do not load wrinkled, creased, or damp paper. • Never mix media types within a tray. •...
Acronyms Autocompensator Mechanism (or paper feed) ASIC Application Specific Integrated Circuit Complete Bill Of Material Cyclic Redundancy Check Development Roll (of print cartridge/photoconductor system) DIMM Dual In-Line Memory Module Error Correction Code EEPROM Erasable Electrically Programmable Read-Only Memory External Network Adapter Electrostatic Discharge Field Replaceable Unit Host Based Printing...
2. Diagnostic information Start CAUTION: Unplug power from the printer before connecting or disconnecting any cable, assembly, or electronic card. This is a precaution for personal safety and to prevent damage to the printer. This chapter contains the codes and diagnostic tools to aid in providing corrective action for a malfunctioning printer.
Diagnostics—E238, E240, and E240n Power-On Self Test (POST) sequence When you turn the printer on, it performs a POST. Check for correct POST functioning of the base printer by observing the following process: 1. All operator panel lights on momentarily 2.
Light patterns and error messages User attendance messages, paper jam errors, and service errors display a light pattern. This may be all the information you need. However, if you double-click on the panel, a second pattern may appear with more detailed information.
Common primary light patterns “Overview of the operator panels” on page 1-2 for icon information. Light on Light off ✷ Light blinking Light blinking slowly Primary light patterns Lights Continue ✷ ✷ Ready Toner Low/ Replace PC Load Paper Paper Jam ✷...
Primary light patterns (continued) Lights ✷ Continue Ready Toner Low/ Replace PC ✷ Load Paper Paper Jam Error Diagnostics—E238, E240, and E240n...
Primary light patterns (continued) Lights Continue Ready ✷ ✷ Toner Low/ Replace PC Load Paper Paper Jam ✷ Error Service Manual...
Primary light patterns (continued) Lights ✷ ✷ Continue ✷ Ready ✷ Toner Low/ Replace PC ✷ Load Paper ✷ Paper Jam ✷ Error Diagnostics—E238, E240, and E240n...
Common secondary light patterns When the lights are both on, a secondary error has occurred. Press and release twice quickly to display the secondary error code light pattern. The following table shows what these light patterns mean. Secondary error codes Secondary error codes Primary code...
Secondary errors (continued) Secondary codes Lights Continue Ready ✷ Toner Low/ Replace PC ✷ Load Paper ✷ Paper Jam Error Diagnostics—E238, E240, and E240n...
Secondary errors (continued) Secondary error codes Lights Continue Ready Toner Low/ Replace PC ✷ Load Paper Paper Jam Error 2-10 Service Manual...
Secondary errors (continued) Secondary error codes Lights Continue Ready Toner Low/ Replace PC Load Paper Paper Jam Error 2-11 Diagnostics—E238, E240, and E240n...
Additional information—primary codes The following tables explain the primary light patterns, or codes, and secondary error codes, what they mean and how to clear them. User attendance and status information is included. For service information, see “Service codes” on page 2-36.
Busy Light pattern Meaning Action • Busy: • Printer is busy receiving and – Wait for message to processing data or clear. printing. – Press and release • Printer is to cancel print job. defragmenting the – Press and hold flash memory to reset printer.
Hex Trace Ready Light pattern Meaning Action Printer is in the Ready • Hex Trace helps mode and Hex Trace is troubleshoot printing active. problems. After resolving the problem, turn off the printer to exit Hex Trace. • Or, press and hold reset the printer.
Flushing / Resolution reduced Light pattern Meaning Action • Wait until is on to print • Printer is flushing corrupted print data. other jobs. • Printer is processing • Press and release data or printing cancel print job. pages, but the •...
Close door / Insert cartridge Light pattern Meaning Action The printer door is Close the door. open. Load media Light pattern Meaning Action The printer is out of • Load media into tray 1 or media, or the media did the optional not feed properly, 550-sheet tray, and press...
Load manual feeder Light pattern Meaning Action Printer prompts to load • Load media in the manual a single sheet of media feeder with the side to be in the manual feeder. printed facing up. • Press to resume printing. •...
Toner low Light pattern Meaning Action The toner in the print • Send a print job. cartridge is getting low. • Press to print the menu settings page for a list of current settings. • Remove the print cartridge, and shake it to extend the life of the cartridge.
Replace photoconductor kit (printer hard stop) Light pattern Meaning Action Replace the photoconductor The photoconductor kit drum is full and needs kit. replacing. No pages print until the photoconductor kit is replaced. Print cartridge error / Print cartridge is not installed Light pattern Meaning Action...
Invalid engine code / Invalid network code Light pattern Meaning Action • Download valid network The code in an internal print server has not code to the internal print been programmed, or server. the programmed code is • Press twice quickly to not valid.
Cancel job / Reset printer Light pattern Meaning Action Wait for the message to • The current print job is canceled. clear. • The printer is resetting to the user default settings. – Any active print jobs are canceled. – A user default setting remains in effect until changed or until restored to...
Printer error Light pattern Meaning Action • Press twice quickly to The printer has one of the following errors: see the secondary error code. See “Additional • Memory is full, information—secondary insufficient to save error codes” on what is in the buffer, page 2-24 for more or insufficient to...
Additional information—secondary error codes • When the light is flashing and light is on, a secondary printer error has occurred. • When the lights are both on, a paper jam secondary error has occurred. • When the and the lights are both on, a print cartridge error has occurred.
Paper jams between input sensor and exit sensor (201 error) Light pattern Meaning Action Paper has cleared the Check the paper path for input sensor but not obstacles. The fuser should made the exit sensor. be inspected. Paper jams as a printed job exits the printer (202 error) Light pattern Meaning Action...
Paper jams as it exits tray 2 into the printer (241 error) Light pattern Meaning Action Clear the paper jam. A paper jam has occurred as the paper is exiting the paper tray and entering the printer. Paper Jams as it exits tray 2 (242 error) Light pattern Meaning Action...
Paper jam in the manual feeder (251 error) Light pattern Meaning Action A paper jam has Clear the paper jam. occurred in the manual feeder. Complex page Light pattern Meaning Action The page may not print • Press to clear the correctly because the message and continue print information on the...
Print cartridge errors Light pattern Meaning Action 31 Error—Print Install the correct cartridge. cartridge is either missing or defective. 32 Error—The print Replace the cartridge. cartridge is unsupported. 33 Error—The print Replace the cartridge. cartridge has an invalid refill. 2-28 Service Manual...
Print cartridge errors (continued) Light pattern Meaning Action Replace the cartridge with a 42 Error—The print cartridge was cartridge from the same manufactured for a region as the printer. different geographic region than the printer. Insufficient printer memory Light pattern Meaning Action The printer does not...
Insufficient collation area Light pattern Meaning Action • Press to clear the The printer memory does not have the free message and continue space necessary to printing the job (the job collate the print job. may not print correctly). This may happen due to •...
Defective flash Light pattern Meaning Action The printer detects • Press to clear the defective flash memory. message and continue printing. – Downloaded fonts and macros not previously stored in flash memory are deleted. – Install flash memory. Insufficient defrag memory Light pattern Meaning Action...
Network interface errors Light pattern Meaning Action Press to clear the The printer cannot establish message and continue communication with the printing (the job may not print network. correctly). Network or ENA connection lost Light pattern Meaning Action The printer has lost the •...
Memory full Light pattern Meaning Action • Press to clear the The printer is processing data, but the message and continue memory used to store printing the job (the job pages is full. may not print correctly). • Press and release cancel the print job.
Flash full Light pattern Meaning Action • Delete fonts, macros, and There is not enough free space in the flash other data stored on the memory to store the flash memory to free up data you are trying to space. download.
Invalid engine code Light pattern Meaning Action Download valid engine code The code in an internal print server has not to the internal print server. been programmed, or the programmed code is not valid. Invalid network code Light pattern Meaning Action The code in an internal Download valid network code...
Service codes All service errors are indicated by all lights flashing as the primary notification or code. The secondary light pattern indicates an area or function which has the error. Tertiary codes (shown on the following pages) indicate specific device errors. When all lights flash, double-click to see the secondary code.
Service primary code ✷ Light blinking When this code appears, double-click to reveal the secondary codes. Service primary code Lights ✷ Continue ✷ Ready ✷ Toner Low/ Replace PC ✷ Load Paper ✷ Paper Jam ✷ Error 2-37 Diagnostics—E238, E240, and E240n...
Service secondary error codes Service secondary error codes Service secondary error codes Lights ✷ ✷ ✷ ✷ ✷ ✷ Continue Ready Toner Low/ Replace PC ✷ ✷ Load Paper ✷ ✷ Paper Jam ✷ ✷ ✷ Error 2-38 Service Manual...
Service secondary error codes (continued) Service secondary error codes Lights ✷ ✷ ✷ Continue Ready ✷ Toner Low/ Replace PC ✷ ✷ Load Paper ✷ ✷ Paper Jam ✷ Error 2-39 Diagnostics—E238, E240, and E240n...
Service tertiary error codes Service error codes are generally non-recoverable except in an intermittent condition when you can POR (power-on reset) the printer to temporarily recover from the error. Note: All service errors are initially communicated by all lights flashing which is the primary indication or code.
Transfer roll or tray 2 CAUTION: When you see this symbol, there is a danger from hazardous voltage in the area of the product where you are working. Unplug the product before you begin, or use caution if the product must receive power in order to perform the task. Code 914 indicates an error in tray 2 motor.
Fuser, fan, or toner sensor error Codes 920 through 929 indicate a problem in the fuser (see “Fuser service check” on page 2-87 for more information), a stalled fan motor, or a faulty toner sensor or toner cartridge. Service tertiary error codes—fuser, fan, or toner sensor Service Service teriary codes—fuser, fan, or toner secondary...
Service tertiary error codes—fuser, fan, or toner sensor (continued) Service teriary codes—fuser, fan, or toner sensor Lights Continue ✷ ✷ ✷ ✷ Ready ✷ Toner Low/ Replace PC ✷ ✷ ✷ Load Paper ✷ ✷ Paper Jam ✷ ✷ ✷ Error 2-43 Diagnostics—E238, E240, and E240n...
Printhead, transport motor or RIP/engine communication error Codes 930 through 935 indicate a problem with the printhead. Check cables to the printhead. Replace the printhead as necessary. Codes 936 and 937 indicate a problem in the drive system. Code 939 indicates a communication failure between the RIP and engine processors.
Service tertiary error codes—printhead, transport motor, or RIP/engine communication error (continued) Service teriary error codes Lights Continue ✷ ✷ ✷ ✷ Ready ✷ Toner Low/ Replace PC ✷ ✷ ✷ Load Paper ✷ ✷ Paper Jam ✷ ✷ ✷ Error 2-45 Diagnostics—E238, E240, and E240n...
NVRAM failure Error codes 950–954 indicate a problem in the NVRAM (nonvolatile random access memory). Replace the operator panel assembly. Codes 955–959 indicate a failed controller card assembly. Replace the controller card. Service tertiary error codes—NVRAM failure Service Service teriary codes—NVRAM failure secondary codes—...
Service tertiary error codes—NVRAM failure (continued) Service tertiary codes—NVRAM failure Lights Continue ✷ ✷ ✷ ✷ Ready ✷ ✷ Toner Low/ Replace PC ✷ ✷ Load Paper ✷ ✷ Paper Jam ✷ ✷ Error 2-47 Diagnostics—E238, E240, and E240n...
RAM memory error This error indicates RAM failure. Remove DIMM(s), and POR the printer. If the error persists, replace the card. If the error subsides, check the DIMM. Replace faulty DIMM. Service tertiary error codes—RAM memory error Service Service teriary secondary codes—RAM codes—...
Network error Indicates an error in the network circuitry. Replace the controller card assembly. Service tertiary error codes—network error Service Service teriary codes - network secondary codes— Lights ✷ Continue ✷ ✷ ✷ ✷ Ready ✷ ✷ Toner Low/ Replace PC ✷...
Diagnostics—E340 and E342n Power–On Self Test (POST) sequence The following is an example of the events that occur during the POR sequence when the printer is turned on. 1. Diamonds are displayed on the operator panel. 2. While code is being loaded into DRAM, dots scroll across the operator panel.
Overview of the operator panel and menus Indicator light The indicator light gives information about the status of your printer. If the light is The printer is On, but idle Blinking On and busy 2-51 Diagnostics—E340 and E342n...
Buttons Use the five operator panel buttons to open a menu, scroll through a list of values, change printer settings, and respond to printer messages. Note: Buttons act on the information displayed on the second line of the operator panel. The following information describes the functions of each button.
Button Function Select Press Select to: • Open the menu shown on the second line of the operator panel. Depending on the type of menu, this action: – Opens the menu and displays the first item in the menu. – Opens the menu item and displays the default setting. •...
Diagram of the printer menus Not all menus or selections will be available on all models or in all situations. Paper Menu Finishing Menu Utilities Menu Job Menu Paper Source Copies Quick Demo Cancel Job Paper Size Blank Pages Print Menus Reset Printer Paper Type Collation...
Messages and error codes User attendance messages User attendance messages Message Explanation Change Cartridge Remove the print cartridge, and install a new Invalid Refill cartridge. Change <input source> This message displays when the user should <custom type name> change the media installed in one of the input options.
User attendance messages (continued) Message Explanation Change <input source> This message displays when the user should <type><size> change the media installed in one of the input options. • <input source>=Tray 1, Tray 2, Tray 3, or Manual feeder. • <type>=Bond, Card stock, Colored, Envelope, Labels, Ltrhead, Plain, Preprint, or Transparency.
User attendance messages (continued) Message Explanation Insert <tray> Tray=Tray 1 or Tray 2. The printer does not detect the presence or absence of a tray, but that paper was not picked. Replace the tray, and press Go. Note: This situation usually occurs when the tray is refilled during a job.
User attendance messages (continued) Message Explanation Load <input source> Input source=Tray 1, Tray 2, or Manual <custom type name> Feeder. Custom type name is a user defined media type. The following actions may be taken: • Load media in the indicated source. •...
User attendance messages (continued) Message Explanation 35 Res Save Off The printer lacks sufficient memory to enable Deficient Memory Resource Save. The following actions may be taken: • Press Go to clear the message. The printer disables Resource Save. • Install additional memory. •...
User attendance messages (continued) Message Explanation 38 Memory Full This message displays when the printer is processing an incoming job, and there is insufficient memory available to continue processing the job. The following actions may be taken: • Press Go to clear the message. Perform the defragment operation: –...
User attendance messages (continued) Message Explanation 50 PPDS This message displays when the PPDS Font Error interpreter has encountered a font error. Note: This error may only occur when the PPDS compiler requests a font which is not present or is not installed. The following actions may be taken: •...
User attendance messages (continued) Message Explanation 54 Std Network This error displays when a network port is Software Error detected, but the printer cannot establish communications with it. Press Go to clear the message. The printer disables all communications to the network interface.
User attendance messages (continued) Message Explanation 58 Too Many This error displays when too many flash Flash Options options are installed in the printer. The following options may be taken: • Turn off the printer, and remove the extra flash options. •...
Paper jam messages Repeating jams or jam messages can be caused by any of the following: • Faulty pick solenoids or worn cams of the solenoids. • Faulty flags or springs. • Worn backup rollers at the reference guide. • Improperly adjusted reference guide.
Service error codes Service error codes are generally non-recoverable except in an intermittent condition when you can POR the printer to temporarily recover from the error condition. Service error codes (9xx) Error Description Action Service Server firmware problem. Contact the RIP software next level of support.
Service error codes (9xx) (continued) Error Description Action Fuser Error Replace fuser with correct one. See “Fuser removal” on page 4-28. (Incorrect fuser lamp.) Fan Error Replace the fan. See “Fan removal” on page 4-26. Fan is stalling. Toner sensor The toner sensor is not operating properly, the developer drive assembly is not operating properly, or the print...
Service error codes (9xx) (continued) Error Description Action NV failure:n Recoverable error. Reset (POR) the printer. Where n=offset where error occurred. NVRAM CRC failure Indicates the NVRAM experienced a CRC failure. Replace the controller card. Code CRC <loc> Replace the controller card. Where <loc>...
Service error codes (9xx) (continued) Error Description Action Unrecognizable A failure with the network port. network port If the printer is a network model, replace the controller card. See “Controller card Software error in removal” on page 4-15. network port Bad checksum while programming network port.
Displayed error codes When a 9xx or 2xx error displays: 1. Press and hold Return, and press Select to view sub error codes. The first screen of information displays. Write down the information. 2. Continue pressing Return and Select until each screen of information is obtained.
Sub error codes First 6 bytes sub Possible error code data Explanation error (xx can be any message value) 84 00 22 x1 Indicates the media reached the image x2 00 point before EP leading edge state machine was ready. (x1=leading edge of media state, x2=trailing edge of media state) 84 01 22 x1...
Sub error codes (continued) First 6 bytes sub Possible error code data Explanation error (xx can be any message value) 84 xx 01 x1 The video signal did not start within two x2 00 inches after actuating the input sensor. Check input sensor and flag.
Sub error codes (continued) First 6 bytes sub Possible error code data Explanation error (xx can be any message value) 84 xx 05 x1 There was media at the input sensor too x2 00 early. There was not enough time between printhead start and the printhead mirror motor to lock.
Sub error codes (continued) First 6 bytes sub Possible error code data Explanation error (xx can be any message value) 84 xx 27 x1 Manual feeder sensor never became x2 x3 uncovered from the sheet ahead. (x1=media size, x2=media source, x3=last measured gap at input sensor (gap ahead of PageAhead.)) 84 xx 28 x1...
Sub error codes (continued) First 6 bytes sub Possible error code data Explanation error (xx can be any message value) 84 xx 2C x1 Unrecoverable no gap jam. Engine x2 x3 detected no gap at the manual feeder sensor, attempted to open the gap by stopping the feed rolls, but no trailing edge was ever seen at the input sensor.
Sub error codes (continued) First 6 bytes sub Possible error code data Explanation error (xx can be any message value) 84 xx 30 00 Input sensor never became uncovered 00 00 from page ahead while trying to feed media out of path during warm-up. Paper originally detected at option tray pass thru sensor.
Sub error codes (continued) First 6 bytes sub Possible error code data Explanation error (xx can be any message value) 89 xx 03 x1 The exit sensor did not detect the trailing x2 x3 edge of the media. (x1=bit7:filtered exit sensor state; bits 6–0:H1(time exit sensor covered), x2=suspect gap measurement at input sensor, x3=Low(time exit sensor...
Sub error codes (continued) First 6 bytes sub Possible error code data Explanation error (xx can be any message value) 8D 00 00 00 The fuser exit sensor was never activated 00 00 by the leading edge of the media fed through the printer.
Sub error codes (continued) First 6 bytes sub Possible error code data Explanation error (xx can be any message value) 8E x1 11 x2 Took too long to ramp up Tray 2 motor. x3 x4 (x1=DCFeedMSCounter, x2=Low(DCFeedIRQCount), x3=RampTableLengthCache, x4=DCFeedClosedLoopState.) 2-78 Service Manual...
Diagnostics—all models Symptom tables POST symptom table Symptom Action The main motor, cooling fan, “Cover interlock switch service and fuser do not come on. check” on page 2-85. POST completes, except one “Operator panel service check or more lights do not come on. (models E238, E240, and E240n)”...
Symptom Action Fuser parts melted. “Hot fuser service check” on page 2-89. Fuser lamp does not light. “Cooling fan service check” on page 2-81. Toner not fused to the paper. See“Cooling fan service check” on page 2-81. Paper jams. “Paper feed service checks” on page 2-94.
Symptom Action Paper never picks. “Paper never picks” on page 2-95. Paper feeds continuously. “Paper picks during POST and/ or continuously” on page 2-94. Paper wrinkled or bent. “Paper “trees,” wrinkles, stacks poorly, or curls” on page 2-96. Service checks Service checks which involve measuring voltages on the LVPS/HVPS (low voltage power supply/high voltage power supply board) should be performed with the printer positioned...
Controller card service check Controller card service check Action Controller card POST (Power-On Self Test) assembly Note: With all cables connected, the printer should complete POST within approximately 30 seconds in the following sequence: • For models E238, E240, and E240n, see “Power-On Self Test (POST) sequence”...
Controller card service check (continued) Action Controller card Verify +24 V dc input from the assembly (continued) LVPS/HVPS. • Turn the printer off. • Disconnect the LVPS/HVPS cable from the controller card at J4. • Turn the printer on. • Verify +24 V dc from the cable connector of J4, pins 8 and 9.
Controller card service check (continued) Action LVPS/HVPS Verify main power to controller card With the printer off, unplug the LPS/HVPS cable at J4 on the controller card. Verify grounds on pins 7, 12, and 14 for both the cable and the controller card.
Cover interlock switch service check Note: Make sure a print cartridge assembly is installed and the cover closes all the way, engaging the cover open switch lever. Action Cover interlock switch Disconnect the cover interlock cable from the controller card at J15. With the printer turned off, verify continuity between cable pin 1 and pin 2 with the door closed and discontinuity with the door open.
Dead machine service check CAUTION: Check the AC line voltage. The voltage should be within the following limits: • 100 V ac (volts alternating current) – 127 V ac for the 110 V printer • 200 V ac – 240 V ac for the 220 V printer Action Unplug the printer and check the fuses on the LVPS/HVPS board for continuity.
Fuser service check When toner is partially fused to the paper, it is usually caused by low fuser temperature. Warning: Avoid handling the lamp as much as possible, as it is easily broken. Be careful not to touch the glass housing with bare hands, because skin acids can weaken the glass.
Fuser service check Action Fuser power cable Step 2: No continuity LVPS/HVPS Check the lamp cable for continuity. Fuser • If correct, replace the fuser. (continued) • If incorrect, replace the lamp cable. Disconnect the thermistor cable from J16 on the controller card.
Cold fuser service check Make sure the correct voltage lamp is installed. The voltage rating is stamped on one of the lamp contacts. Action If the fuser lamp comes on and a fuser failure light error code displays, be sure the thermistor is contacting the hot roll, and the thermistor cable is firmly seated in connector J6 on the controller card.
LVPS/HVPS service check Action LVPS portion of board Fuses that open typically indicate a faulty LVPS/ HVPS. Use the voltage meter to verify the appropriate voltage at the printer end of the power cable. LVPS/HVPS Remove the LVPS/HVPS assembly from the printer.
Main motor service check Action Turn off the printer, and unplug the main motor cable at J8. Turn on the printer, and check for the following voltages at J8: J8 pins Voltages Pins 1–4 Approx. +3.3 V dc Main motor cable LVPS/HVPS Pin 6 Approx.
Operator panel service check (models E238, E240, and E240n) Inspect the operator panel cable for damage. Make sure the cable is plugged in securely. Run POST, and check each light for proper operation. See “Power-On Self Test (POST) sequence” on page 2-2.
LED Operator panel service check (continued) Action Lights Operator panel (LED) Controller card If none of the lights come on, make sure the Warning: Do not cable is properly connected to the controller card and the controller card has input voltage replace the operator to it.
Paper feed service checks Paper jam error indication during POST Action Exit sensor If the exit sensor flag is not resting within the paper exit sensor during POST, the printer displays a paper jam message. Make sure the flag is operating freely and is correctly installed. Input sensor #1 (under Make sure the input paper feed sensors are print cartridge assembly)
Paper picks but stops halfway through the printer Action Make sure the input sensors are working Input sensor #1 (under print cartridge properly. assembly) and Check for a broken or stuck flag on the input Input sensor #2 sensors. (manual) Make sure the cables are seated on the controller card at J9 (Tray 1 input) and J20 (manual input).
Paper occasionally mispicks or picks multiple sheets at once Action Tray 1 Check tray for paper catch points. Tray 2 (option) If the sheet being fed stops momentarily, the ACM applies additional vertical force, causing additional sheets to feed. Do not mix paper types in one tray. Paper pick tires Check the tires in the ACM assembly for signs of wear or damage.
Parallel port service check (models E238, E240, and E240n) 1. Perform a print test to make sure the printer prints correctly. Verify is on, then press to print menu settings. 2. Be sure the printer cable is designed for bidirectional printing. 3.
Print quality service checks Note: Ensure cover closes tightly. A gap in the opening may allow light to expose the photoconductor resulting in a ‘dirty’ print. Extreme environmental conditions, temperatures, and humidity will affect the print quality. Using print quality test pages To help isolate print quality problems, like streaking, print test pages using the print quality test pages.
3. Press Go. Four pages print to help you evaluate print quality. The first page has various fonts and a graphic, the second page is gray with graphics, the third page is black, and the last page is blank. 4. Use the test pages to isolate problems such as light or toner streaks. “POST symptom table”...
Black page Note: Incorrect laser exposure or incorrect charging of the photoconductor causes an all black page. Always verify the same results from a different print cartridge assembly and developer before proceeding. Action Toner electrodes (not Check the three rearward electrodes below the a FRU) print cartridge assembly for contamination or damage.
Heavy background Poor development or poorly charged toner particles cause excessive background. This is more noticeable as the toner cartridge nears end–of– life. Action Toner cartridge (not a Make sure the toner cartridge and PC Kit are FRU) correctly installed and the high voltage contacts PC Kit (not a FRU) are clean.
Variation in image density horizontally across page Action PC Kit (not a FRU) The charge roll may have an unbalanced pressure against the PC (photoconductor) drum. Try a new PC Kit. Transfer roll Check the springs in the left and right transfer roll bearings.
Light print Action Toner cartridge (not a Make sure the toner cartridge and PC Kit are FRU) installed correctly and that the toner cartridge is not low on toner. If the problem continues, install a new toner cartridge. Recheck condition before replacing PC Kit, if necessary.
Toner on back of page Action PC Kit (not a FRU) Inspect the overall paper path for signs of spilled toner. Gently clean the contaminated areas with a soft cloth or compressed air. Fuser The fuser hot roll can cause toner deposits on the back of the paper if toner is building up on the hot roll.
Solving print quality problems Print quality problems Problem Action Light or blurred Light print characters. The toner cartridge may be getting low on toner: • Remove the toner cartridge and print cartridge assembly. • Shake it from side to side to redistribute the toner.
• Change the media texture setting. If the setting is not in your driver, you can download the correct Dell setup utility from the Dell Web site at www.dell.com. light nor Toner Low message do The print is getting light •...
Print quality problems (continued) Problem Action Solid black areas on • Choose a different fill pattern in your software transparencies or program. white streaks on • Try a different type of paper. Paper designed paper. for copiers gives the best quality. •...
Download the correct Lexmark setup utility from the Dell Web site at www.dell.com to change the Toner Low alarm. The Error light is on Make sure the printer cover is closed.
Print quality problems (continued) Problem Action The paper sticks • Remove the paper from Tray 1 or the optional together, resulting in Tray 2, and fan it. the printer feeding • Don’t overfill Tray 1 or the optional Tray 2 multiple sheets of (see media capacities in the media types and paper.
Print quality problems (continued) Problem Action Unexpected • Ensure correct printer driver is being used. characters print or • Select hex trace mode to determine what the characters are problem is. missing. • Restore factory defaults. • Make sure the parallel cable or USB cable is firmly plugged in at the back of the printer.
Printhead service check Action Unplug the printer. Disconnect the printhead cables from J13 and J14 on the controller card. Turn the printer on. Printhead On the controller card, verify +24 V dc on pin 5 at J13 and +5 V dc on pin 7 at J14. Verify grounds on pin 4 at J13 and on pins 2, 6, and 8 at J14.
3. Diagnostic aids Since the operator panels differ, you need to determine which model you are servicing, and begin in the section below: • Model E240 and E240n—go to “Accessing service menus” on page 3-2. • Model E340 and E342n—go to “Accessing service menus”...
Diagnostic aids—E238, E240, and E240n3 Accessing service menus Diagnostics 1. Turn off the printer. The diagnostic group contains mode menu settings and operations 2. Open the front access that are useful in the cover. manufacturing of the printer. It 3. Press and hold also features other aids in while turning on the diagnosing problems.
Moving around the menu “Configuration Menu printout sample” on page 3-3 “Diagnostics mode printout sample” on page 3-4 are similar to the instructions printed by following steps 1–6 on page 3-2. These menu items are designated by the non–indented items listed along the left edge of the page (Bottom as printed from printer).
Configuration menu selections To enter Configuration menu, turn off the printer, open the front access cover, turn on the printer while pressing and holding , and close the cover once the light displays. Print menus by pressing and holding until the lights flash. Utilities Use the Utilities menu to troubleshoot printer problems.
Setting Use setting to Values Print Quality Help isolate print quality problems, such as streaking. Four Test Pages pages print to help evaluate print quality: • A text page with printer information, cartridge information, current margin settings, and a graphic. •...
Parallel Use the Parallel menu to change printer settings on jobs sent through a parallel port. Menu item Use setting to Values NPA Mode Send print jobs to the printer and query printer status information simultaneously. Auto (default) Protocol Receive information at a Standard much higher transmission Fastbytes (default)
Use the USB menu to change printer settings on jobs sent through a USB port. Menu item Use setting to Values NPA Mode Send print jobs to the printer and query printer status information simultaneously. Auto (default) MAC Binary Configure the printer to Off—The printer filters process Macintosh binary PostScript print jobs using...
Network Use the network menu to change printer settings on jobs sent through a network port (either standard network or network opt <x>). Menu item Use setting to Values NPA Mode Send print jobs to the printer and query printer Auto (default) status information simultaneously.
Diagnostics mode selections To enter Diagnostics mode, turn off the printer, open the front access cover, press and hold while turning on the printer, and close the cover when light displays. Print menus by pressing and holding until the lights flash. Development Menu item Use setting to...
Development (continued) Menu item Use setting to Value Continuous Continuously print pages print— containing cross lines, simplex printer information, and Tray 2 margin settings. This menu item does not appear if Tray 2 is not installed. Press and hold until the lights flash to begin.
Network Menu item Use setting to Value History Print history of errors. Press and hold until the lights flash to print. Mark History Append a tag to the Mark history report to indicate Do not mark (default) the most recent crashes. History Mode Post the 976 error code to Modified (default)
Diagnostic aids—E340 and E342n Accessing service menus There are different test menus that can be accessed during POR to identify problems with the printer. Configuration 1. Turn off the printer. The Configuration Menu group contains a set of Menu 2. Press and hold Select and menus, settings, and Return.
Configuration menu (CONFIG MENU) Entering Configuration Menu 1. Turn off the printer. 2. Press and hold Select and Return. 3. Turn on the printer. 4. Release the buttons when Performing Self Test displays. The message CONFIG MENU displays on the top line of the operator panel.
Reset PC Cnt When you install a new photoconductor, this number should be reset. To reset the counter: 1. Select Reset PC Cnt from the CONFIG MENU. 2. Press Select to reset the counter to zero. Note: Permanent page count is not affected by this operation. Print quality pages (Prt Quality Pgs) To print the Print Quality Pages: 1.
Download Emuls This menu item only displays if a downloaded emulator is installed. To disable downloaded emulations: 1. Select Download Emuls from CONFIG MENU. 2. Select Disable. The printer performs a POR and starts as if the downloaded emulations were not loaded. To reactivate downloaded emulations, restart the printer.
Error log “Error log” on page 3-32 for a more detailed description. The error log printed from the Diagnostics Mode contains additional debug information for 9xx errors than the error log printed from the Configuration Menu. You can also view or clear the log from the Diagnostics Mode. Print Log Additional diagnostic information is available when you print the error log.
Diagnostics mode Available tests The tests display on the operator panel in the order shown: Diagnostics mode tests REGISTRATION “Registration” on page 3-21. Bottom Margin Top Margin Left Margin Right Margin Quick Test “Quick Test” on page 3-22. PRINT TESTS Tray 1 “Input source tests”...
Diagnostics mode tests (continued) Flash Test (if installed) “Flash Test” on page 3-28. PRINTER SETUP Defaults “Defaults” on page 3-29. Page Count “Page Count” on page 3-29. Perm Page Count “Perm Page Count (permanent page count)” on page 3-29. Serial Number “Serial Number”...
Registration To set print registration: 1. Select REGISTRATION from the Diagnostics menu. The Top margin sign/value pair blinks. This indicates it is the margin value being changed. T=sxx* B=sxx* L=sxx* R=sxx* 2. To select the margin value to be changed, press Select until the margin value pair you want to change is blinking.
Quick Test The Quick Test contains the following information: • Print registration settings • Alignment diamonds at the top and bottom • Horizontal lines to check for skew • General printer information, including current page count, installed memory, serial number, and code level. To print the Quick Test page: Note: Print the Quick Test Page on letter or A4 paper.
Print quality pages (Prt Quality Pgs) To print the Print Quality pages: 1. Select PRINT TESTS from Diagnostics Mode. 2. Select Prt Quality Pgs. 3. Press Select. Four pages print. Additional button presses are ignored until the pages have printed. The first page is a mix of graphics and text.
DRAM Test The purpose of this test is to check the validity of DRAM, both standard and optional. The test writes patterns of data to SDRAM to verify that each bit in memory can be set and read correctly. To run the SDRAM Memory Test: 1.
Parallel Wrap This test is used with a wrap plug to check operation of the parallel port hardware. Each parallel signal is tested. To run the Parallel Wrap Test: 1. Disconnect the parallel interface cable, and install the wrap plug (P/N 1319128).
DMA Background Error Clear Init Rise Error False Init Rise Error False Init Fail Error Autofeed Rising Interrupt Error Clear Autofeed Rise Error False Autofeed Rise Error Autofeed Failing Interrupt Error Clear Autofeed Fail Error 6. Once the maximum count is reached, the test stops. The power indicator goes on solid, and the final results display.
Sensor Test (input tray) This test is used to determine if the input tray sensors are working correctly. 1. Select the Sensor Test from the Input Tray Test menu. 2. Select the input source. Only installed sources display, but may include Tray 1, Tray 2, and Manual Feeder.
Base sensor test Base sensor test is used to determine if the sensors inside the printer are working correctly. To run the Base Sensor Test: 1. Select BASE SENSOR TEST from the Diagnostics Mode. 2. Select the sensor to test. The following sensors may be tested: Input (input sensor) Output (exit sensor) Front Door (front access door sensor)
Printer setup Defaults Selections are U.S. or Non-U.S. This selection affects the following defaults: Printer setting U.S. value Non-U.S. value Default paper size* Letter Envelope size* 10 Envelope DL Envelope Fax paper size Letter PCL Symbol Set PC-8 PC-850 PPDS code page Units of measure Inches Millimeters...
Serial Number The serial number can only be viewed and cannot be changed. To view the serial number: 1. Select Serial number from PRINTER SETUP. 2. Press Return to return to PRINTER SETUP. Engine Setting 1 through 4 Warning: Do not change these settings unless requested to do so by your next level of support.
EP setup EP Defaults Restores all EP settings to factory default values. Selections are Restore and Do Not Restore. Fuser Temperature (Fuser Temp) Changing this setting can reduce paper curl or melting of some letterhead images. Selections are Normal (default), Lower, and Lowest. Transfer The transfer can be adjusted to Low, Medium, or High.
Error log Display Log Selecting ERROR LOG provides a history of printer errors. It contains the 12 most recent errors that have occurred on the printer. The most recent error displays in position 1 and the oldest error displays in position 12 (if 12 errors have occurred).
• Page counts for each error The printed error log can be faxed to Dell or your next level of support for verification or diagnosis. This report can also be printed from the Configuration Menu. Because you can clear error logs, the contents of this log may not match the contents when you view the error log.
4. Repair information Warning: 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 cards: •...
Removal procedures Note: 1. Remove the toner cartridge and paper tray before removing other printer parts. The toner cartridge should be protected from light while out of the printer. 2. We recommend disconnecting all external cables from the printer to prevent damage during service.
3. Force the left hinge out of its socket, and relax it above the socket. 4. Force the right hinge out of its socket, and lift it above the socket. Warning: Do not pull the fuser link out of the printer any farther than when the door is fully open.
6. Use your left hand to hold the fuser link at the cover joint while rotating the right side of the cover slightly away from the printer to disengage the link. 7. Remove the front access cover. Reinstallation note: If the front access cover is being replaced, remove the logo plate, and install it on the new cover.
Front access cover removal (E340 and E342n) 1. Open the front access cover. 2. Remove the screw (A) securing the LCD cable cover. 3. Remove the left and right screws (B) that hold the LCD bezel. 4. Close the front access cover. Repair information...
5. Place a piece of tape (C) across the LCD lens and the bezel. Use about three inches and fold one end under to form a tab to allow easy removal after reinstallation. 6. Using fingernails, pull the top of the bezel away from the front access cover.
7. Remove the screws (D) holding the button card assembly to the front access cover. 8. Unlatch the LCD display (right and left sides). 9. Carefully pull the LCD assembly away from the front access cover. 10. Disconnect the LCD panel and controller card. 11.
13. Force the left hinge out of its socket, and relax it above the socket. 14. Force the right hinge out of its socket, and lift it above the socket. Warning: Do not pull the fuser link out of the printer any farther than when the door is fully open.
Left side cover removal 1. Open the rear door (output tray). 2. Open the front access cover. 3. Remove the screw (A). 4. Press the two latches (B) to release the left side cover. 5. Swing the cover open. Repair information...
6. To remove the cover, position the printer with the left rear corner hanging over the edge of the table. 7. Lift the top rear of the cover over the pivot point, and drop the cover away from the printer. Rear cover removal 1.
3. Remove the two screws (A) holding the cover. 4. Open the rear door (rear exit tray). 5. Lift the rear cover, unhooking it from the frame at the bottom and remove. 4-11 Repair information...
Right side cover removal 1. Open the front access cover. 2. Open the rear door (output tray). 3. Release the latches (A) while applying opening force with the right hand. 4. Swing the cover open. 4-12 Service Manual...
5. To remove the cover, position the printer with the right rear corner hanging over the edge of the table. 6. Lift the top rear of the cover over the pivot point, and drop the cover away from the printer. 4-13 Repair information...
Top cover removal 1. Open the front access cover. 2. Open the left cover. 3. Open the right cover. 4. Open the rear door. 5. Remove two screws (A) at the top rear corners of the top cover. 6. Remove two screws (B) at the front of the top cover just behind the access door.
Controller card removal Warning: • Always touch a ground before touching the card. • Handle the card carefully by the edges. 1. Remove the right side cover. “Right side cover removal” on page 4-12. 2. Remove the screw (A) securing the metal controller card cover. 3.
4. Remove two screws (B) securing the parallel port and the screw (C) securing the USB port to the frame at the back of the printer. 4-16 Service Manual...
5. Remove five screws (D) holding the card to the metal side frame. 6. Carefully lift the card, and remove. 4-17 Repair information...
Cover open sensor removal 1. Open the right side cover. 2. Disconnect the cover open switch at J15 on the controller card, and extract the cable. 3. For E340 and E342n models, remove the two screws (A) securing the inner cover to gain access to the sensor. 4-18 Service Manual...
4. Use a smaller Phillips screwdriver to remove the screw (B) holding the sensor. 5. Slide the sensor from the positioning post. Installation note: Be sure to reroute the cable through the cable clip. 4-19 Repair information...
Developer drive coupling assembly removal 1. Remove the left side cover. See “Left side cover removal” on page 4-9. 2. Carefully place the printer on its right side. Use a clean cloth to protect the cover from marring. 3. Remove four screws (A) in the gear train metal cover. 4.
Door latch assembly removal 1. Open the front access cover. 2. Open the left side cover. 3. Locate the opening on the inside of the button. The opening is partially covered by the front left edge of the printhead metal frame. 4.
Exit sensor removal (on the fuser) 1. Remove the paper exit guide assembly. See “Paper exit guide assembly removal” on page 4-46 for more information. 2. Unplug the exit sensor at J17 on the controller card. 3. Push the shaft (A) to the right using your right thumb against the inside gear surface and your left index finger against the opposite end of the shaft.
4. Align the flat portion on the right end of the shaft with the opening of the bearing support, and lift the right end of the shaft through the support. 5. Swing the shaft away from the printer to expose the sensor flag. 6.
7. Slide the fuser out just enough to access the screw holding the sensor. 8. Unsnap the sensor from the bracket. 9. Observe the orientation of the flag (C) and spring (D) before replacing units. 10. Remove the sensor and its attached cable. 4-24 Service Manual...
11. Loosen the screw (E) that secures the bracket to remove the cable. 4-25 Repair information...
Front access cover logo removal (E238, E240, and E240n) 1. Open the front access cover. 2. Remove the screw (A) holding the logo cover in place. 3. Remove the logo cover from the front access cover. 4-27 Repair information...
Fuser removal Remove the paper exit guide assembly. See “Paper exit guide assembly removal” on page 4-46 for more information. 2. Remove the two screws (A) securing the fuser. 3. Disconnect the thermistor at J16 and exit sensor at J17 on the controller card.
4. Slide the fuser out far enough to access the power cables on the right side. 5. To disconnect the fuser power cables, slide the insulation (B) back to expose the connectors. Press the tang (C) on the connector to disconnect the cable connector.
Fuser idle gear links removal 1. Remove the front access cover. For models E238, E240, and E240n, “Front access cover removal (E238, E240, and E240n)” on page 4-2. For models E340 and E342n, first perform steps 1 and 2 of “Front access cover removal (E340 and E342n)”...
5. Remove the metal cover and unsnap the link (A) from the shaft. 6. Disconnect the coupler from the front link, and remove the links. 4-31 Repair information...
Fuser power cable removal 1. Remove the LVPS/HVPS card. See “LVPS/HVPS card assembly removal” on page 4-41 for more information. Note: The cable can be reached and disconnected without fully removing the card. 2. Remove the rear cover. See “Rear cover removal” on page 4-10 more information.
5. Slide the fuser out far enough to expose and disconnect the AC cable connections. You may have to remove the fuser to disconnect the cables. See “Fuser removal” on page 4-28. 6. To disconnect the fuser power cables, slide the insulation (A) back to expose the connectors.
Input roller clutch and lever removal (autocompensator clutch) 1. Remove the left side cover. See “Left side cover removal” on page 4-9. 2. Place the printer on its right side. Protect the cover from being marred. 3. Remove four screws in the gear train metal cover. 4.
Input sensor #1 removal 1. Open the right side cover. 2. Disconnect the sensor cable at J9 on the controller card (front, near top of card). 3. Carefully place the printer on its top. 4. Using a small shank screwdriver, remove the screw (A) behind the ACM (autocompensator) pivot which holds the paper sensor in place.
Input sensor #2 (manual feed) removal 1. Open the right side cover. See “Right side cover removal” on page 4-12 for more information. 2. Disconnect the sensor cable at J20 on the controller card. 3. Carefully place the printer on its top, with the front facing you. 4.
LCD bezel removal 1. Open the front access cover. 2. Remove the two screws (A) that hold the LCD bezel. 3. Close the front access cover. 4-37 Repair information...
4. If the bezel will be reused, stick a piece of tape (B) across the LCD lens and bezel. Use about three inches of tape and fold the end under to form a tab to allow easy removal after reinstallation. 5.
Installation note: The clear lens has a molded-in triangle (C). Install the lens so the triangle is positioned toward the LCD buttons. Be sure the lens is free of debris and fingerprints before installing. LCD operator panel removal 1. Remove the LCD bezel. See “LCD bezel removal”...
LED operator panel removal (E238, E240, and E240n) 1. Open the access door. 2. Remove the right side cover. See “Right side cover removal” on page 4-12. 3. Unplug the operator panel from the controller card at J19. 4. Remove two screws (A) holding the operator panel. 5.
LVPS/HVPS card assembly removal 1. Remove the cover extender (if installed). 2. Remove the rear cover. See “Rear cover removal” on page 4-10 for more information. 3. Place the printer onto its top, with the back and bottom in view. 4.
6. Remove four screws (C) in the bottom of the metal cover. 7. Lift the metal cover so the connecting cables can be unplugged on the side shown. 4-42 Service Manual...
8. Rotate the assembly, and unplug the remaining cables. 9. Remove the assembly. LVPS/HVPS–to–controller card cable removal 1. Remove the LVPS/HVPS card. See “LVPS/HVPS card assembly removal” on page 4-41 for more information. 2. Unplug the cable at J4 on the controller card and at CN201 on the LVPS/HVPS card, and extract the cable.
Manual feed clutch assembly removal 1. Remove the left side cover. 2. Place the printer on its right side. Protect the cover from being marred. 3. Remove the four screws (A) in the gear train metal cover. 4-44 Service Manual...
4. Remove the clip (B) from the shaft of the pick up clutch assembly. 5. Remove the screw (C) and lever (pawl). 6. Remove the clutch assembly. If the pieces come apart, they can be easily reassembled. 4-45 Repair information...
Paper exit guide assembly removal 1. Remove the rear cover. See “Rear cover removal” on page 4-10 more information. 2. Remove the two screws (A) and the longer screw (B) holding the exit guide. 3. Remove the paper exit guide assembly. Reinstallation note: It may be necessary to rotate the gears to mesh with the fuser and drive gear.
Paper feed rollers (autocompensator tires) removal 1. Be sure you have removed the paper tray and the toner cartridge. 2. Turn the printer onto its back. Note: Be careful not to mar the finish of the printer. 3. Remove the rubber paper feed rollers. 4.
Printhead removal 1. Remove the top cover. See “Top cover removal” on page 4-14 more information. 2. Remove the right side cover. See “Right side cover removal” on page 4-12. 3. Notice the alignment of the printhead at each screw. 4.
Toner level sensor cable removal (E340 and E342n) 1. Open the right side cover. See “Right side cover removal” on page 4-12 for more information. 2. Unplug the sensor at J11, and extract the cable. 3. Unplug the cable from the sensor. Toner level sensor removal (E340 and E342n) 1.
Transfer roll removal Note: Handle or touch the transfer roll as little as possible. 1. Open the front access cover. 2. Place a sheet of clean paper around the transfer roll to protect it. 3. At the right side of the transfer roll, squeeze the holder arms with the left hand while lifting.
Transport motor cable removal 1. Remove the right cover. See “Right side cover removal” on page 4-12 for more information. 2. Remove the controller card cover. See “Controller card removal” on page 4-15 for more information. 3. Unplug the transport motor cable at J8 on the controller card. 4.
5. Locations and connections Locations Front view Front 150-sheet paper output bin support Front Front access access cover cover Manual logo feeder Tray 1 Operator Optional panel 550-sheet (E238, E240, E240n) drawer Operator panel (E340, E340n) Locations and connections...
Controller card connector pin values (Also, see the wiring diagram at back of book.) These values were measured with all connections made (plugged) or with only one connector at a time unplugged to expose the pins. Always disconnect and connect with the printer power off. Otherwise, the values below may not match.
Value Value Connector Pin # (plugged) (unplugged) Comments – +3.3 V dc Ready mode, main motor drive. – +3.3 V dc – +3.3 V dc – +3.3 V dc Ground Ground +5 V dc +5 V dc 7, 8, 9 +24 V dc <+24 V dc +1.1 V dc...
Value Value Connector Pin # (plugged) (unplugged) Comments Approx. Approx. Thermistor +2 V dc +5 V dc Ground Ground +1.1 V dc +5 V dc Exit sensor, Ready mode +5 V dc +5 V dc Ground Ground Ground Ground Fan, Ready mode (fan running) +11–12 V dc +24 V dc Approx.
7. Parts catalog How to use this parts catalog The following legend is used in the parts catalog: Asm- Part Units/ Units/ Description Index number mach • Asm-index: identifies the assembly and the item in the diagram. For example 3-1 indicates assembly 3 and the item number 1. •...
Assembly 1: Covers Asm- Part Units/ Units/ Description Index number mach 1—1 40X1335 Top cover assembly 40X1339 Rear cover assembly 40X1320 Right side cover 40X1341 Optional media drawer assembly (no tray) 40X1342 Optional tray 2 40X1340 Main tray 40X1336 Left side cover 40X1356 Language overlays 40X1357...
Assembly 4: Options Asm- Part Units/ Units/ Description Index number mach 40X1564 32MB flash card assembly 40X1513 Simplified Chinese font card assembly 40X1514 Traditional Chinese font card assembly 40X1512 Japanese font card assembly 40X1515 Korean font card assembly 40X1364 32MB SDR DIMM 40X1365 64MB SDR DIMM 40X1366...
Assembly 5: Miscellaneous Asm- Part Units/ Units/ Description Index number mach 40X1368 USB cable, packaged (2 m) 40X1367 Parallel cable, packaged (3 m) 7372839 Field location package assembly 40X0289 Power cord, 1.8M (straight)—USA, Canada 40X0278 Power cord, 6 foot (straight)— Europe and others 40X0288 Power cord, 8 foot (straight)—...
Index Numerics Parallel MAC Binary PS 3x—9x attendance messages NPA Mode 2-58 Parallel Mode 2 2xx paper jams 2-24 2-64 Protocol 9xx service errors 2-36 2-65 printing menu Setup Auto CR After LF abbreviations Auto LF After CR acronyms Demo Mode Auto CR After LF, E238/E240(n) table of light patterns Auto LF After CR, E238/E240(n)
exiting 3-20 Hardware Tests Defaults Button Test 3-23 E238/E240(n) 3-12 DRAM Test 3-24 E340/E342n LCD Test 3-23 US/Non-US defaults 3-29 Parallel Wrap 3-25 Demo Mode Input Tray Tests E238/E240(n) Feed Tests 3-26 E340/E342n 3-17 Sensor Test 3-27 diagnostic information menu list 3-19 diagnostics mode—E238/E240(n) Print Tests...
error messages input source tests 3-22 E238/E240(n) input source tests, E340/E342n 3-22 additional information 2-13 2-24 primary light patterns secondary light patterns laser notices iv-vii secondary paper jams 2-12 LCD operator panel 4-39 service error codes 2-36 LCD Test, E340/E342n 3-23 user attendance messages LED operator panel...
messages paper jams E238/E240(n) E238/E240(n) 2-24 paper jams 2-24 paper feed service check 2-94 service error codes 2-36 tips on preventing user attendance messages Paper Prompts, E340/E342n 3-18 E340/E342n parallel port service check paper jam 2-64 E238/E240(n) 2-97 service error codes 2-65 E340/E342n 2-97...
toner level sensor cable—E340/ E342n 4-49 Quick Test toner level sensor—E340/E342n E238/E240(n) 3-11 4-49 E340/E342n 3-21 3-22 transfer roll 4-50 transport motor cable 4-51 Reset Factory Defaults registration, E340/E342n 3-21 E238/E240(n) Reinit NVRAM, E238/E240(n) 3-13 E340/E342n 3-29 removals reset maintenance page counter, autocompensator clutch 4-34 E238/E240(n)
fuser 2-87 print speed cold 2-89 toner capacity 2-89 start LVPS/HVPS 2-90 strobe adjustment, E340/E342n 3-30 main motor 2-91 sub error codes 2-68 operator panel E238/E240(n) 2-92 symptom tables 2-79 operator panel E340/E342n 2-93 POST 2-79 paper feed 2-94 printer 2-79 paper jam during POST 2-94...