Lexmark C912 Service Manual - Page 118
Service checks, Drive 1 DC motor service check
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5055-xxx Service checks Drive 1 DC motor service check FRU 1 • DC motor • Drive unit 1 • Printer controller board Action If the motor does not attempt to turn and you receive a 910 error code, replace the driver 1 dc motor. Be sure the toner and photodeveloper units are not causing an overload on the dc motor. If the motor turns but the paper carrying section of the machine does not rotate, check the drive 1 unit gear train for damage. Be sure the clutch on the gear train engages for color printing. Replace the drive 1 unit if necessary. If this does not correct the problem, replace the printer controller board. Drive 2 stepper motor service check FRU 1 Drive 2 stepper motor Action Be sure connector CN4 on the printer controller board is firmly connected. If there still is a problem, replace the drive 2 stepper motor. 2-68 Service Manual
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