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"956 Processor Failure" Error Message on the Lexmark C910, C912, or C920 Color Laser Printers

Document ID:SO3783

Usergroup :External
11/02/17 Properties  


956 error; 956 processor failure; Processor failure; Processor error


Troubleshooting the 956 error



The 956 Processor Failure error normally requires a service call. However, it may be only a temporary issue and easily resolved without service. On occasion, a power fluctuation or a stray static discharge in the vicinity of the printer can cause a false error message to appear.


  1. Power off the printer, wait ten seconds, and then power the printer back on.
  2. If the error remains, try connecting the printer's power cord directly into a grounded wall outlet, if possible. In rare instances, a surge protector or uninterruptible power supply (UPS) can generate false error messages.
  3. If the message persists, please continue to 'Contacting Lexmark'.

Contacting Lexmark

Please contact Lexmark Technical Support for additional assistance.  When calling for service you will need to know your printer model type and serial number.  If you need help locating your printer's model type and serial number, click here.
Please call from near the printer in case the technician asks you to perform a task involving the printer.

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