Question about Lexmark Optra S 1855 Laser Printer
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If this is the first time the error has occurred, try turning the printer off.
Restart your computer.
Let the printer sit turned off for at least 1 minute before powering it back on.
Make sure it is plugged straight to the wall and not through a surge device or power strip. Power strips and uninterrupted power supplies can cause a low amperage problem in your printer. This can trigger a printhead error (For Lexmark Printers) even if the printer has worked on this surge device for months.
If the printer continues to post a 930 Printhead Error, it thinks the wrong printhead unit is installed.
The printhead unit and possibly the laser cable or the engine/system board to this printer may need to be replaced.
The printer needs to be serviced for it requires personalized tools that prevents further damage to the printer which the only the manufacture has it.
Keep me posted if solution 1 or solution 2 resolved the problem.
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Posted on Apr 08, 2011
Exact error message - Mirror Motor speed detect error
These errors usually indicate a
failure in the HYSNC signal to the
printhead. Check the continuity of
the cables connected to J3 and J8
on the engine board. If incorrect,
replace the defective cable. The
voltage at J8-4 measures
approximately +5 V dc. If incorrect,
replace the engine board. The
voltage at J3-7 measures
approximately +24 V dc. If incorrect,
replace the engine board. If correct,
replace the printhead assembly.
Download the service manual from :-
You need to have acrobat reader to view the file. This file would have all the details regarding print head and other components.
If printhead assembly is at fault, the cost of the new one is around $200.
Let me know,if needed further assistance.
Hope i helped you.
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Posted on Apr 08, 2011
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Posted on Jan 02, 2017
Tips for a great answer:
A Printhead Error message indicates that the printhead (laser scanner) unit inside the printer is not working correctly.
NOTE: On the E250d(n) models, all service errors are signified by the flashing of all of the lights. To determine if this is a printhead error, quickly double-press the button to see the secondary code. If the !, , and lights are the only ones blinking, a printhead or a motor failure is indicated. For more information on deciphering the error lights, click here (PDF file, 255KB).
Step Action 1 If this is the first time you have seen the error, turn the printer off. 2 Leave the printer powered off for 10 seconds or more before turning it back on. This gives the printer a chance to reset. 3
Power the printer back on. If it goes to the Ready state, try printing again. If the error does not return, continue using the printer. 4
If the printhead error returns when the printer is powered on or when you try to print again, follow the suggestions below.
If this is an intermittent error, you may want to check how the printer is plugged into the wall.
Make sure the printer is plugged straight into the wall and not through a surge device or power strip. Please try this even if the printer previously worked correctly with this surge device. Power strips and uninterrupted power supplies can cause a low amperage problem, which can trigger a false printhead error.
You may also want to try plugging the printer into a different wall outlet to see if the printhead error continues. This will eliminate the power source as a possible cause of the issue.
If the error does not clear, the printer will probably require service to correct the issue. Please contact Lexmark Technical Support or a local authorized servicer for assistance.
When calling Lexmark Technical Support for service, please be prepared to describe the problem you are experiencing or the error message on the display. You will also need to provide your printer's model type and serial number. This information can be found on a label on the inside of the front cover of the printer.
Please call from near the printer in case the technician asks you to perform a task involving the printer.
Have a nice day and do not forget to rate please...!
May 14, 2012 | Lexmark Optra S 1255 Laser Printer
The Mirror Motor of the printhead is unable to reach operating speed. This means you have to replace the printhead.
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