Description: Transfer Roll
Indicates a problem in the transfer roll area.
Remedy: 1 Transfer Roll Assembly Check the transfer roll for any signs of toner buildup, surface damage to the roll, oil or other contaminants on the surface of the roll. Replace the transfer roll as necessary. 2 Left Transfer Arm Assembly Check the left transfer roll arm assembly to make sure it is fastened and locked in the down position. If the arm is not locked down, check to ensure the arm is not broken and will lock into the EP frame correctly. Check the left transfer arm assembly spring for proper operation. 3 Right Transfer Arm Assembly Check the right transfer arm assembly to make sure it is fastened and locked in the down position. If the arm is not locked down, check to make sure the arm is not broken and will lock into the EP frame correctly. Check the right transfer arm assembly spring for proper operation. For any background problems, check to ensure the contact to the HVPS board is correct and that there is approximately 0 ohms resistance between the transfer roll shaft and the HVPS contact.
Code: 920
Description: Fuser Error. Indicates that the fuser is below temperature when printing
Remedy: 1 Fuser Lamp (Incorrect Lamp/925 Service Error) Install the correct voltage and wattage lamp or fuser assembly. 2 Fuser Lamp Remove the controller board. Run the Diagnostic Print Test and observe the lamp through the left side frame. If the lamp doesn’t come on, unplug the printer and check the continuity between the two pins on the fuser lamp cable going to the fuser assembly. If you do not measure continuity, remove the fuser assembly and check the continuity of the lamp. If incorrect, replace the lamp. If correct, replace the fuser cover assembly. 3 LVPS LVPS to Fuser Auto Docking Connector Fuser AC Cable Turn the printer off. Remove the fuser assembly. Turn the printer power on. Measure across the AC fuser cable pins for line voltage with the cable connected. If incorrect, turn the printer off and disconnect the power cord. Check the continuity of the LVPS to fuser AC cable. If incorrect, replace the cable. If correct, replace the LVPS. 4 Fuser Top Cover Assembly (Thermal Fuse/Thermistor Assembly) Disconnect the thermistor cable from the fuser board at J2. The resistance is as follows: HOT - J2-1 - J2-2 = 2.5K ohms COLD = 150K ohms to 260K ohms
Code: 921
Description: Fuser Error
Indicates that the fuser is below standby temperature when the printer is idle.
Remedy: 1 Fuser Lamp (Incorrect Lamp/925 Service Error) Install the correct voltage and wattage lamp or fuser assembly. 2 Fuser Lamp Remove the controller board. Run the Diagnostic Print Test and observe the lamp through the left side frame. If the lamp doesn’t come on, unplug the printer and check the continuity between the two pins on the fuser lamp cable going to the fuser assembly. If you do not measure continuity, remove the fuser assembly and check the continuity of the lamp. If incorrect, replace the lamp. If correct, replace the fuser cover assembly. 3 LVPS LVPS to Fuser Auto Docking Connector Fuser AC Cable Turn the printer off. Remove the fuser assembly. Turn the printer power on. Measure across the AC fuser cable pins for line voltage with the cable connected. If incorrect, turn the printer off and disconnect the power cord. Check the continuity of the LVPS to fuser AC cable. If incorrect, replace the cable. If correct, replace the LVPS. 4 Fuser Top Cover Assembly (Thermal Fuse/Thermistor Assembly) Disconnect the thermistor cable from the fuser board at J2. The resistance is as follows: HOT - J2-1 - J2-2 = 2.5K ohms COLD = 150K ohms to 260K ohms
Code: 922
Description: Fuser Error
Fuser failed to reach standby temperature.
Remedy: 1 Fuser Lamp (Incorrect Lamp/925 Service Error) Install the correct voltage and wattage lamp or fuser assembly. 2 Fuser Lamp Remove the controller board. Run the Diagnostic Print Test and observe the lamp through the left side frame. If the lamp doesn’t come on, unplug the printer and check the continuity between the two pins on the fuser lamp cable going to the fuser assembly. If you do not measure continuity, remove the fuser assembly and check the continuity of the lamp. If incorrect, replace the lamp. If correct, replace the fuser cover assembly. 3 LVPS LVPS to Fuser Auto Docking Connector Fuser AC Cable Turn the printer off. Remove the fuser assembly. Turn the printer power on. Measure across the AC fuser cable pins for line voltage with the cable connected. If incorrect, turn the printer off and disconnect the power cord. Check the continuity of the LVPS to fuser AC cable. If incorrect, replace the cable. If correct, replace the LVPS. 4 Fuser Top Cover Assembly (Thermal Fuse/Thermistor Assembly) Disconnect the thermistor cable from the fuser board at J2. The resistance is as follows: HOT - J2-1 - J2-2 = 2.5K ohms COLD = 150K ohms to 260K ohms
Code: 923
Description: Fuser Error
Fuser is too hot during printing or when printer is idle.
Remedy: 1 Fuser Lamp (Incorrect Lamp/925 Service Error) Install the correct voltage and wattage lamp or fuser assembly. 2 Fuser Lamp Remove the controller board. Run the Diagnostic Print Test and observe the lamp through the left side frame. If the lamp doesn’t come on, unplug the printer and check the continuity between the two pins on the fuser lamp cable going to the fuser assembly. If you do not measure continuity, remove the fuser assembly and check the continuity of the lamp. If incorrect, replace the lamp. If correct, replace the fuser cover assembly. 3 LVPS LVPS to Fuser Auto Docking Connector Fuser AC Cable Turn the printer off. Remove the fuser assembly. Turn the printer power on. Measure across the AC fuser cable pins for line voltage with the cable connected. If incorrect, turn the printer off and disconnect the power cord. Check the continuity of the LVPS to fuser AC cable. If incorrect, replace the cable. If correct, replace the LVPS. 4 Fuser Top Cover Assembly (Thermal Fuse/Thermistor Assembly) Disconnect the thermistor cable from the fuser board at J2. The resistance is as follows: HOT - J2-1 - J2-2 = 2.5K ohms COLD = 150K ohms to 260K ohms
Code: 924
Description: Fuser Error
An open circuit has been detected in the Fuser Thermistor Circuit.nter is idle.
Remedy: 1 Fuser Lamp (Incorrect Lamp/925 Service Error) Install the correct voltage and wattage lamp or fuser assembly. 2 Fuser Lamp Remove the controller board. Run the Diagnostic Print Test and observe the lamp through the left side frame. If the lamp doesn’t come on, unplug the printer and check the continuity between the two pins on the fuser lamp cable going to the fuser assembly. If you do not measure continuity, remove the fuser assembly and check the continuity of the lamp. If incorrect, replace the lamp. If correct, replace the fuser cover assembly. 3 LVPS LVPS to Fuser Auto Docking Connector Fuser AC Cable Turn the printer off. Remove the fuser assembly. Turn the printer power on. Measure across the AC fuser cable pins for line voltage with the cable connected. If incorrect, turn the printer off and disconnect the power cord. Check the continuity of the LVPS to fuser AC cable. If incorrect, replace the cable. If correct, replace the LVPS. 4 Fuser Top Cover Assembly (Thermal Fuse/Thermistor Assembly) Disconnect the thermistor cable from the fuser board at J2. The resistance is as follows: HOT - J2-1 - J2-2 = 2.5K ohms COLD = 150K ohms to 260K ohms