Service Manual
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Edition: February 27, 2007 Lexmark™ X642e, X644e, X646e MFP 7002-xxx • Table of Contents • Start Diagnostics • Safety and Notices • Trademarks • Index Lexmark and Lexmark with diamond design are trademarks of Lexmark International, Inc., registered in the United States and/or other countries.
Edition: February 27, 2007 Lexmark™ X642e, X644e, X646e MFP 7002-xxx • Table of Contents • Start Diagnostics • Safety and Notices • Trademarks • Index Lexmark and Lexmark with diamond design are trademarks of Lexmark International, Inc., registered in the United States and/or other countries.
Service Manual
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... stock 1-16 Storing print media 1-16 Avoiding jams 1-16 Tools required 1-17 Acronyms 1-18 Diagnostic information 2-1 Start 2-1 Symptom tables 2-1 Service errors (8xx.xx and 9xx.xx's 2-1 User status and attendance messages 2-1 Additional information 2-1 Understanding the MFP operator panel 2-2 MFP operator panels 2-2 Home screen and Home screen buttons 2-4 Buttons and touchscreen icon buttons 2-4 Menus...
... stock 1-16 Storing print media 1-16 Avoiding jams 1-16 Tools required 1-17 Acronyms 1-18 Diagnostic information 2-1 Start 2-1 Symptom tables 2-1 Service errors (8xx.xx and 9xx.xx's 2-1 User status and attendance messages 2-1 Additional information 2-1 Understanding the MFP operator panel 2-2 MFP operator panels 2-2 Home screen and Home screen buttons 2-4 Buttons and touchscreen icon buttons 2-4 Menus...
Service Manual
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...check 2-148 LCD touchscreen contrast control service check-model X642e 2-149 LCD touchscreen display service check-models X644e/X646e 2-149 Main drive service check 2-153 Operator panel Help and Home buttons service check-model X642e 2-154... service check 2-170 System board service check 2-170 Toner sensor service check 2-171 Transfer roll service check 2-172 Diagnostic aids 3-1 Accessing service menus 3-1 Diagnostics Menu 3-2 Entering Diagnostics Menu 3-2 Available tests 3-2 Registration (printer 3-5 Quick Test 3-6 PRINT TESTS 3-7 Input source tests 3-7 Printing Quality...
...check 2-148 LCD touchscreen contrast control service check-model X642e 2-149 LCD touchscreen display service check-models X644e/X646e 2-149 Main drive service check 2-153 Operator panel Help and Home buttons service check-model X642e 2-154... service check 2-170 System board service check 2-170 Toner sensor service check 2-171 Transfer roll service check 2-172 Diagnostic aids 3-1 Accessing service menus 3-1 Diagnostics Menu 3-2 Entering Diagnostics Menu 3-2 Available tests 3-2 Registration (printer 3-5 Quick Test 3-6 PRINT TESTS 3-7 Input source tests 3-7 Printing Quality...
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...and installing FRUs. 5. Preventive maintenance contains the lubrication specifications and recommendations to isolate failing field replaceable units (FRUs). 3. Diagnostic information contains an error indicator table, symptom tables, and service checks used to prevent problems. 7. Conventions Note: A ...xx Service Manual Warning: A warning identifies something that might cause a servicer harm. Unplug the product before you are working. Diagnostic aids contains tests and checks used to identify the connector locations and test points on the printer. 6. There are discussed....
...and installing FRUs. 5. Preventive maintenance contains the lubrication specifications and recommendations to isolate failing field replaceable units (FRUs). 3. Diagnostic information contains an error indicator table, symptom tables, and service checks used to prevent problems. 7. Conventions Note: A ...xx Service Manual Warning: A warning identifies something that might cause a servicer harm. Unplug the product before you are working. Diagnostic aids contains tests and checks used to identify the connector locations and test points on the printer. 6. There are discussed....
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...to determine the MPF problem and repair the failure. The Lexmark X64xe laser MFPs are All-In-One laser MFPs that provide print, copy, scan, and fax functions ...diagnostic aids to adjust the viewing angle. General information 1-1 See "Start" on page 2-1. After you to verify the repair. 7002-xxx 1. General information The Lexmark™ X642e, X644e, and X646e are available in the following models: Model name Lexmark X644e Lexmark X642e Lexmark X642e Lexmark X644e Lexmark X646e Lexmark X646e Lexmark X644e Lexmark X642e Lexmark X642e Lexmark X644e Lexmark X646e Lexmark X646e...
...to determine the MPF problem and repair the failure. The Lexmark X64xe laser MFPs are All-In-One laser MFPs that provide print, copy, scan, and fax functions ...diagnostic aids to adjust the viewing angle. General information 1-1 See "Start" on page 2-1. After you to verify the repair. 7002-xxx 1. General information The Lexmark™ X642e, X644e, and X646e are available in the following models: Model name Lexmark X644e Lexmark X642e Lexmark X642e Lexmark X644e Lexmark X646e Lexmark X646e Lexmark X644e Lexmark X642e Lexmark X642e Lexmark X644e Lexmark X646e Lexmark X646e...
Service Manual
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...a problem with a print cartridge, paper jam, option, port, and so on. Additional information • "Understanding the MFP operator panel" on page 2-2 • "Menus" on page 2-9 • "Diagnostics Menu" on page 3-2 • "Configuration menu (CONFIG MENU)" on page 3-24 • "Theory" on page 3-...take the appropriate action. Use the service error code, user status message, user error message, symptom table, service checks, and diagnostic aids in order to repair a malfunctioning printer. User status and attendance messages • User status messages provide the user with ...
...a problem with a print cartridge, paper jam, option, port, and so on. Additional information • "Understanding the MFP operator panel" on page 2-2 • "Menus" on page 2-9 • "Diagnostics Menu" on page 3-2 • "Configuration menu (CONFIG MENU)" on page 3-24 • "Theory" on page 3-...take the appropriate action. Use the service error code, user status message, user error message, symptom table, service checks, and diagnostic aids in order to repair a malfunctioning printer. User status and attendance messages • User status messages provide the user with ...
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... If a number is Ready, it returns all changes that have not been submitted and returns the MFP to the home screen. 7 Start Press to delete the right-most digit of the MFP using the colors red and green. Diagnostic information 2-3 When outside of the value in any other menu while the... MFP is pressed while on . During a print job, the print media path is off. Stopping appears on ...
... If a number is Ready, it returns all changes that have not been submitted and returns the MFP to the home screen. 7 Start Press to delete the right-most digit of the MFP using the colors red and green. Diagnostic information 2-3 When outside of the value in any other menu while the... MFP is pressed while on . During a print job, the print media path is off. Stopping appears on ...
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...Fax menus. (Icon) (Button) Release Held Faxes Home Release Held Faxes (or Held Faxes if in the Ready state. Diagnostic information 2-5 These menus are held faxes, touch this button. Shows MFP conditions such as Ready or Busy. Touch it . (Button) ? (Tips) FTP FTP Tips is in Manual Mode)...See "Home (only on model X642e)" on every screen except the home screen. There are only available when the MFP is a context-sensitive Help feature. For models X644e and X646e, the Menus icon is a Tips button on the operator panel, below the touchscreen to return to access the ...
...Fax menus. (Icon) (Button) Release Held Faxes Home Release Held Faxes (or Held Faxes if in the Ready state. Diagnostic information 2-5 These menus are held faxes, touch this button. Shows MFP conditions such as Ready or Busy. Touch it . (Button) ? (Tips) FTP FTP Tips is in Manual Mode)...See "Home (only on model X642e)" on every screen except the home screen. There are only available when the MFP is a context-sensitive Help feature. For models X644e and X646e, the Menus icon is a Tips button on the operator panel, below the touchscreen to return to access the ...
Service Manual
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... touch Submit. For all models, touch Back to return to become the current user default setting. Diagnostic information 2-7 Scan the flatbed Submit Back Submit Back Back Down arrow For models X644e and X646e-To save the value as a list of the down arrow is gray to indicate that two types...as a button. If a different value within a menu item is not active since the end of scanning are lost. Back For models X644e and X646e, when the Back button is shaped like this screen. If any of the following items under the heading. Each touch of menu items or values.
... touch Submit. For all models, touch Back to return to become the current user default setting. Diagnostic information 2-7 Scan the flatbed Submit Back Submit Back Back Down arrow For models X644e and X646e-To save the value as a list of the down arrow is gray to indicate that two types...as a button. If a different value within a menu item is not active since the end of scanning are lost. Back For models X644e and X646e, when the Back button is shaped like this screen. If any of the following items under the heading. Each touch of menu items or values.
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.../X646e) Parallel Standard Serial Serial NetWare AppleTalk LexLink Settings General Settings Copy Settings Fax Settings E-mail Settings FTP Settings Print Settings Security Set Date and Time Help Print all guides Copy guide E-mail guide Fax guide FTP guide Information guide Print defects guide Supplies guide Diagnostic information... index and the menus and items available under each menu. To access the menus and settings: • Models X644e/X646e-touch the menu icon in MFP memory. When a value or setting is selected and saved, it easy for printing from the application may override the ...
.../X646e) Parallel Standard Serial Serial NetWare AppleTalk LexLink Settings General Settings Copy Settings Fax Settings E-mail Settings FTP Settings Print Settings Security Set Date and Time Help Print all guides Copy guide E-mail guide Fax guide FTP guide Information guide Print defects guide Supplies guide Diagnostic information... index and the menus and items available under each menu. To access the menus and settings: • Models X644e/X646e-touch the menu icon in MFP memory. When a value or setting is selected and saved, it easy for printing from the application may override the ...
Service Manual
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... Go to "All black or blank image" on page 2-168 Go to "Wavy lines" on page 2-169 Go to "Line compression" on the touchscreen. Diagnostic information 2-11 Scanner-ADF symptoms Symptom Action ADF does not recognize paper length in the paper tray Go to "ADF paper width sensor service check...-models X644e/X646e" on edge of the MFP between the scanner and the printing unit. Go to "ADF paper length sensor service check-models paper tray X644e/X646e" on page 2-170. Action Go to "High-capacity feeder input tray service ...
... Go to "All black or blank image" on page 2-168 Go to "Wavy lines" on page 2-169 Go to "Line compression" on the touchscreen. Diagnostic information 2-11 Scanner-ADF symptoms Symptom Action ADF does not recognize paper length in the paper tray Go to "ADF paper width sensor service check...-models X644e/X646e" on edge of the MFP between the scanner and the printing unit. Go to "ADF paper length sensor service check-models paper tray X644e/X646e" on page 2-170. Action Go to "High-capacity feeder input tray service ...
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...(where available) When a 9xx or 2xx error displays: 1. Write down the information. 2. Printed error codes Additional information is installed in the MFP. Go to see if a modem card is available by a period and additional numbers in the printer, envelope feeder, and duplex option. There ...When the last screen displays, the original message displays. It may also indicate interference between the flatbed CCD assembly and a metal bracket. Diagnostic information 2-13 Sub error codes for sub error codes. Service error codes (8xx.xx) Error code Sub codes Display text 842 .xx ...
...(where available) When a 9xx or 2xx error displays: 1. Write down the information. 2. Printed error codes Additional information is installed in the MFP. Go to see if a modem card is available by a period and additional numbers in the printer, envelope feeder, and duplex option. There ...When the last screen displays, the original message displays. It may also indicate interference between the flatbed CCD assembly and a metal bracket. Diagnostic information 2-13 Sub error codes for sub error codes. Service error codes (8xx.xx) Error code Sub codes Display text 842 .xx ...
Service Manual
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... when checking for too long while media is not increasing in the nip. Go to "920.xx-Cold fuser service • Poor supply line voltage. Diagnostic information 2-15 Fuser page count between 0 and 99,999. Fuser page count between 0 and 99,999. Fuser is in temperature even though the lamp has...
... when checking for too long while media is not increasing in the nip. Go to "920.xx-Cold fuser service • Poor supply line voltage. Diagnostic information 2-15 Fuser page count between 0 and 99,999. Fuser page count between 0 and 99,999. Fuser is in temperature even though the lamp has...
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.... • Noisy thermistor signal. • Fuser not receiving AC power. • Poor supply line voltage. • Low voltage or incorrect lamp. • Incorrect hot roll. Diagnostic information 2-17 Go to "920.xx-Cold fuser service check" on page 2-132. • Bad thermistor, circuit, or cabling. • Noisy thermistor signal. • Fuser...
.... • Noisy thermistor signal. • Fuser not receiving AC power. • Poor supply line voltage. • Low voltage or incorrect lamp. • Incorrect hot roll. Diagnostic information 2-17 Go to "920.xx-Cold fuser service check" on page 2-132. • Bad thermistor, circuit, or cabling. • Noisy thermistor signal. • Fuser...
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... the desired temperature while printing. Go to "920.xx-Cold fuser service check" on for too long while media is not increasing in the nip. Diagnostic information 2-19 Hot roll too cool when heating to "920.xx-Cold fuser service • Poor supply line voltage. Fuser page count between 400,000...
... the desired temperature while printing. Go to "920.xx-Cold fuser service check" on for too long while media is not increasing in the nip. Diagnostic information 2-19 Hot roll too cool when heating to "920.xx-Cold fuser service • Poor supply line voltage. Fuser page count between 400,000...
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... not receiving AC power. • Poor supply line voltage. • Excessive load on the fuser. • Low voltage or incorrect lamp. • Incorrect hot roll. Diagnostic information 2-21 Go to "920.xx-Cold fuser service check" on page 2-132. Hot roll too cool when heating to desired temperature after transitioning to...
... not receiving AC power. • Poor supply line voltage. • Excessive load on the fuser. • Low voltage or incorrect lamp. • Incorrect hot roll. Diagnostic information 2-21 Go to "920.xx-Cold fuser service check" on page 2-132. Hot roll too cool when heating to desired temperature after transitioning to...
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... temperature. After hot roll lamp detection, did not roll over to steady state control in trying to "922.xx-Cold fuser check" on page 2-134. Diagnostic information 2-23 Go to "922.xx-Cold fuser check" on page 2-134. Go to "922.xx-Cold fuser check" on page 2-134. Go to reach...
... temperature. After hot roll lamp detection, did not roll over to steady state control in trying to "922.xx-Cold fuser check" on page 2-134. Diagnostic information 2-23 Go to "922.xx-Cold fuser check" on page 2-134. Go to "922.xx-Cold fuser check" on page 2-134. Go to reach...
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... receiving sufficient AC power. • Poor supply line voltage. The control code has been lost. Go to "922.xx-Cold fuser check" on page 2-134. Diagnostic information 2-25 7002-xxx Service error codes (9xx.xx) (continued) Error code Sub codes Display text Description Action 922 .42 922 .43 922 .44 922...
... receiving sufficient AC power. • Poor supply line voltage. The control code has been lost. Go to "922.xx-Cold fuser check" on page 2-134. Diagnostic information 2-25 7002-xxx Service error codes (9xx.xx) (continued) Error code Sub codes Display text Description Action 922 .42 922 .43 922 .44 922...
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... timed out in time (new enhanced control). Go to hardware faults. Go to "923.xx-Hot fuser service check" on page 2-135. Fuser over temperature. Diagnostic information 2-27 Fuser page count between 300,000 and 399,999. • Short in time. Go to "922.xx-Cold fuser check" on page 2-135...
... timed out in time (new enhanced control). Go to hardware faults. Go to "923.xx-Hot fuser service check" on page 2-135. Fuser over temperature. Diagnostic information 2-27 Fuser page count between 300,000 and 399,999. • Short in time. Go to "922.xx-Cold fuser check" on page 2-135...
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... NVRAM bit indicates previous wrong lamp detected. Fuser page count between 200,000 and 299,999. Fuser page count between 200,000 and 299,999. Diagnostic information 2-29 Too hot to "925.xx-Hot fuser service check" on page 2-137.
... NVRAM bit indicates previous wrong lamp detected. Fuser page count between 200,000 and 299,999. Fuser page count between 200,000 and 299,999. Diagnostic information 2-29 Too hot to "925.xx-Hot fuser service check" on page 2-137.