Lexmark C750 Service Manual - Page 41

5060-00x Error code 917 Trans Sensor Action Tray 4 Transparency Sensor Error-replace Tray 4 transparency sensor assembly. If this does not fix the problem, replace the engine board. See "Engine board removal" on page 4-29. Unrecoverable TPS Gain Error-replace the ITU assembly. See "ITU assembly removal" on page 4-37. Unrecoverable TPS Error-replace the ITU assembly. See "ITU assembly removal" on page 4-37. Unrecoverable TPS Invalid Belt-replace the ITU assembly. See "ITU assembly removal" on page 4-37. Fuser Fan-go to "925 Error code" on page 2-90. VTB Fan-go to "926 Error code" on page 2-90. RIP Fan-go to "927 Error code" on page 2-91. Unable to find zero crossover point-Replace the LVPS. See "Low voltage power supply (LVPS) removal" on page 4-38. Invalid AC Frequency-the AC power line frequency may be incorrect. Go to "AC power service check" on page 2-112. The RIP card processor cannot communicate with the engine processor. Check the RIP to engine cable for correct installation. If installed correctly replace the RIP board. See "RIP board removal" on page 4-70. If this does not fix the problem, replace the engine board. See "Engine board removal" on page 4-29. 920 Color Calibrate 921 Color Calibrate 922 Color Calibrate 925 Fan Stalled 926 Fan Stalled 927 Fan Stalled 930 LV Power Supply 931 LV Power Supply 939 RIP Engine Comm 940 TMC Error - Cyan 941 TMC Error - Magenta 942 TMC Error - Yellow 943 TMC Error - Black 951 NVRAM Failure 952 NVRAM Failure 953 NVRAM Failure 954 NVRAM Failure 955 Code CRC Cyan toner metering cycle (TMC) switch failure-go to "940 Error code" on page 2-93. Magenta toner metering cycle (TMC) switch failure-go to "941 Error code" on page 2-95. Yellow toner metering cycle (TMC) switch failure-go to "942 Error code" on page 2-97. Black toner metering cycle (TMC) switch failure-go to "943 Error code" on page 2-99. NVRAM Chip Failure, engine board-replace the engine board. See "Engine board removal" on page 4-29. NVRAM CRC Failure, engine board-replace the engine board. See "Engine board removal" on page 4-29. NVRAM Chip Failure, RIP board-replace the RIP board. See "RIP board removal" on page 4-70. NVRAM CRC failure-replace the RIP board. See "RIP board removal" on page 4-70. RIP board-this error indicates that the Code ROM or NAND failed the CRC check. The location of the failure is indicated by . Replace the RIP board. See "RIP board removal" on page 4-70. Errors 956 and 957 indicate which area of the controller (RIP) card failed. Replace the RIP board. See "RIP board removal" on page 4-70. Replace the RIP board. See "RIP board removal" on page 4-70. Replace the RIP board. See "RIP board removal" on page 4-70. 956 System Board Processor Failure 957 System Board ASIC Failure 958 NAND Failure Diagnostic information 2-7