• Code: 53.XY.ZZ
• Display: 53.XY.ZZ PRINTER ERROR
• Description: An error occurred on some memory of the printer.
  X DIMM Type: 1 RAM Y Device Location 1 DIMM Slot 1 2 DIMM Slot 2 3 DIMM Slot 3 4 DIMM Slot 4
  ZZ Error Number: 0 unsupported memory 1 unrecognized memory 2 unsupported memory size 3 failed RAM test 4 exceeded maximum RAM size 5 invalid DIMM speed
• Remedy: Press CANCEL JOB. If the problem persists, replace the DIMM card in the slot indicated.

• Code: 54.X
• Display: 54.X PRINTER ERROR
• Description: X Description: 1 temperature 3 image density sensor 5 color plane registration sensor 6 image density sensor 7 yellow drum home position sensor 8 magenta drum home pos. sensor 9 cyan drum home position sensor 10 black drum home position sensor 11 black density sensor 12 cyan density sensor 13 magenta density sensor 14 yellow density sensor 19 ETB speed control sensor 20 color plane registration sensor 21-24 toner level sensors
• Remedy: Turn the printer off and then back on, then check items in the order listed. 54.1 error Check the fuser. See 50.X fuser error. 54.3 error Check the connections. Replace the color registration detection assembly. 54.5 error Check the connections. Replace the color registration detection assembly. 54.6 error Check the connections. Replace the color registration detection assembly. 54.7, 54.8, 54.9, or 54.10 error Check the connections. Replace the drum phase sensor for the indicated color. 54.11, 54.12, 54.13, or 54.14 error Check the connections. Check the cartridge and replace it if necessary. Replace the color registration detection assembly. 54.19 error Check the ETB connection. Replace the ETB. Replace the DC controller. 54.20 error Check the connection. Replace the color registration detection assembly. 54.21, 54.22, 54.23, or 54.24 error Check the connections. Replace the toner level sensing PCB. Replace the DC controller.

• Code: 55.X
• Display: 55.X PRINTER ERROR
• Description: The DC controller is not communicating with the formatter. The problem could be caused by a timing error or an intermittent connection.
• Remedy: 1 Press GO to continue. 2 Turn the printer off and then back on. 3 Reseat or replace the connectors between the DC controller and the formatter. 4 If the problem persists, replace the DC controller PCB. Calibrate the printer after replacing the DC controller. See “Calibrate Now” on page 294. 5 Replace the formatter. Initialize NVRAM.

• Code: 57.X
• Display: 57.X PRINTER ERROR
• Description: A printer fan error has occurred.
  X Description: 3 cartridge fan (vertical fan, F2) 4 formatter fan (horizontal fan, F1)
• Remedy: Turn the printer off and then back on. 57.3 Cartridge fan error (F2) 1 Reconnect the connector J1004 on the DC controller PCB. 2 Immediately after starting the print operation, measure the voltage between pins 1 and 3 on the J1004 connector. If the voltage changes from 0 V to 24 V, replace the cartridge fan. 3 Replace the DC controller PCB. Calibrate the printer after replacing the DC controller. See “Calibrate Now” on page 294. 57.4 Formatter fan error (F1) 1 Reconnect the connector J1003 on the DC controller PCB. 2 Immediately after turning the printer on, measure the voltage between pins 1 and 3 on the J1004 connector. If the voltage changes from 0 V to 24 V, replace the formatter fan. 3 Replace the DC controller PCB. Calibrate the printer after replacing the DC controller.

• Code: 58.X
• Display: 58.X PRINTER ERROR
• Description: A memory tag error was detected.
  X Description: 3 CPU 4 power supply
• Remedy: 1 Turn the printer off and then back on. 2 Replace the memory PCB. 3 Replace the DC controller PCB. Calibrate the printer after replacing the DC controller.

• Code: 59.XY
• Display: 59.XY PRINTER ERROR
• Description: A printer motor error has occurred.
  X Description: 0 motor error 1 motor startup error 2 motor rotation error 3 fuser motor startup error 4 fuser motor rotation error 5 print cartridge motor startup error 6 print cartridge motor rotation error 9 ETB motor startup error A ETB motor rotation error B developing disengaging motor startup error C developing disengaging motor rotation error
  Y Description: 0 no color K black C cyan M magenta Y yellow
• Remedy: 1 Turn the printer off and then back on. 2 This message might also appear if the transfer unit is missing or incorrectly installed. Ensure that the transfer unit is correctly installed. ETB motor error 1 Clean the ETB unit intermediate connector, J4017. If the connector is damaged, replace it. 2 Reconnect the connetors J4022 for the ETB motor, J4017 between the ETB and the printer, and J4014 on the DC controller PCB. 3 Replace the ETB motor. 4 Replace the DC controller PCB. Calibrate the printer after replacing the DC controller. Fuser motor error 1 Reconnect the connectors J4030 for the fuser motor and J1002 on the DC controller PCB. Replace any damaged parts. 2 Replace the fuser drive assembly. 3 Replace the DC controller PCB. Calibrate the printer after replacing the DC controller. See “Calibrate Now” on page 294. Print cartridge motor error 1 Reconnect the print cartridge connector on the DC controller PCB (J1013 for cyan, J1031 for magenta, J1032 for yellow, and J1033 for black). 2 Replace the drum drive assembly for the indicated print cartridge. 3 Replace the DC controller PCB. Calibrate the printer after replacing the DC controller. Developing disengaging motor error 1 Reconnect the connectors J4024 and J1019 between the developing disengaging motor and the DC controller PCB. 2 Replace the developing disengaging drive assembly. 3 Replace the DC controller PCB. Calibrate the printer after replacing the DC controller.

• Code: 62
• Display: 62 NO SYSTEM
• Description: No system was found.
• Remedy: 1 Turn the printer off and then back on. 2 Reseat the firmware DIMM, making sure it is in the 168-pin slot J1.

• Code: 64
• Display: 64 PRINTER ERROR
• Description: Scan buffer error.
• Remedy: 1 Turn the printer off and then back on. 2 Perform a cold reset. 3 If the message persists, replace the formatter or firmware DIMM.