Question about Lexmark C762 Laser Printer

2 Answers

Lexmark c762 problem, the display has all diamond shape and the only way it reset is by un pluging from rear of printer, but 3 hours later while not in use the same thing happen again.

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  • apsprinters Dec 29, 2010

    need more help

  • apsprinters Dec 30, 2010

    the solution seems to have taken care of this problem



2 Answers

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Welcome to Fixya

Since the problem re-occur after 3 hours. You might need to restore the printer back to factory state just to make sure that this is not a firmware issue. Here's the procedure on how to restore the printer to factory settings:

1 Make sure the printer is on and the Ready message appears.
2 Press Menu until you see Utilities Menu, and then press Select.
3 Press Menu until you see Factory Defaults, and then press Select.
4 When Restore appears, press Select. The message Restoring Factory Defaults appears,
followed by the Ready message.
When you select Restore:
- No other button actions are available on the operator panel while Restoring Factory
Defaults appears.
- All downloaded resources (fonts, macros, and symbol sets) in printer memory (RAM) are
deleted. (Resources residing in flash memory or on the optional hard disk are unaffected.)
- All menu settings are returned to the factory default values, except:
• The operator panel Display Language setting in the Setup Menu.
• All settings in the Parallel Menu, Serial Menu, Network Menu, and USB Menu.

Thank you for using Fixya!

Posted on Dec 29, 2010

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The printer is failing it's self test function. If there are no failure codes displayed then the only remedy is either to perform the reset procedure or to call your local service center for service. Here is the text from the Lexmark Manual and the reset procedure:

The operator panel

display is blank or

displays only


The printer self test


Turn the printer off, wait about 10 seconds, and turn the

printer back on.

Performing Self Test appears on the display. When the

test is completed, the Ready message is displayed.

If the messages do not appear, turn the printer off and call for

Posted on Dec 29, 2010

  • Edwin Martens
    Edwin Martens Dec 30, 2010

    Are you getting any error codes? Or is it just the diamonds?



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I have printer x3480 when attaced to power it will not work just, can not shut off with out un pluging from power. Readout just prints COVER OPEN ?

Try to reset your printer to factory settings (Go to menu)
Check connections and cables
Check Power supply

You can find further help downloading your manual or getting support from here:,6959,204816596_652569478_0_en,00.html

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Have a great day!
Pablo :-)

Oct 15, 2008 | Lexmark Office Equipment & Supplies

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