• Code: 925
• Description: Fuser Error
• Remedy: Indicates that the fuser is below temperature when printing.

• Code: 926
• Description: Fuser Error
• Remedy: Indicates that the fuser is below temperature and the system is detecting a thermistor short.

• Code: 927
• Description: Fuser Error
• Remedy: Indicates that the fuser temperature failed to increase.

• Code: 928
• Description: Fuser Error
• Remedy: Indicates that the fuser is too hot during printing, or when the printer is idling.

• Code: 929
• Description: Fuser Error
• Remedy: Indicates that the system has detected that the thermistor is open.

• Code: 930, 931, 934, 935
• Description: Printhead Error
• Remedy: A 931 Error Code 1 Interlock Switches S3, S4 (+5 V dc interlock) The +5 V dc interlock for the printhead prevents the printhead from powering on by the engine board if the cartridge door, fuser door or front cover are open. Check the voltage on the orange lead to interlock switch S4 at the switch. It should read approximately +5 V dc. • If incorrect, disconnect the switch and check the voltage on the cable connect and go to step 2. • If correct, check the voltage on the blue lead attached to interlock switch S3. It should read +5 V dc. • If correct, check the switches for continuity and correct operation. • If a problem is found, replace the failing switch. 2 S3, S4 Interlock Switch Cables. Printhead to Engine Board Cable Check the cable from the interlock microswitch S3 Pin 1 (orange lead) to connector CNLS2 on the printhead and the yellow jumper from S3 Pin 2 to S4 Pin 2. Be sure these cables are connected properly and are not damaged. Be sure to note the interlock switch cable connector mounted to the left side frame. If a problem is found with any of these cables, replace the failing cable. Check the printhead to engine board cable for correct installation and damage. • If correct, check the continuity of the cable. • If incorrect, replace the cable and go to B.
  B 934 and 935 Error Codes 1 Engine Board to Printhead Cable Check the cable for damage and correct installation. Check continuity of the cable. If not correct, replace the cable. 2 Engine Board to Printhead Check the following voltages: Engine board CN14 Pin # Signal Voltage Voltage Pin 5 +24 V dc +24 V dc Pin 6 +5 V dc +5 V dc Pin 19 +5 V dc +5 V dc All voltages are approximate. • If any voltage is incorrect, replace the engine board. • If voltages are correct, replace the printhead first. • If this does not fix the problem, replace the engine board.

• Code: 939
• Description: RIP Engine Communications Error
• Remedy: Indicates that the RIP board and the engine board cannot communicate. The RIP board, engine board or cabling may be defective. Check each board for correct installation and be sure all grounds are secure. If no problem exists, replace the following FRUs in the order shown: • Engine board • Controller board • Interconnect board Note: It is possible that the RIP software can also cause a 929 error. Contact your next level for software support.

• Code: 941
• Description: • 941 Controller Code CRC • Controller Font CRC
• Remedy: Replace the controller board.