Remedy: This warning is displayed when the cartridge is low. Press Check to continue.
Code: 902.xx...906.xx
Description: 902.xx Engine software error 903.xx Paperport link driver error 904.xx Interface violation by RIP 905.xx Interface violation by paperport device 906.xx RIP interface drive error
Remedy: Replace the controller board. Controller board assembly Warning: Do not replace the operator panel and controller board at the same time. Each card contains the printer settings. When either of these cards is new, it obtains some of the settings from the other card. Settings are lost when both are new and replaced at the same time. POST (Power-On Self Test) Note: The printer should complete POST in approximately 30 seconds. If the printer fails to display lights or activate the drive motor, fuser, or fan, then check the following order: 1.Power to the LVPS/HVPS 2.Power from the LVPS/HVPS to the controller board 3.Cables are plugged in correctly, especially for the operator panel. The printer will not power-up without a functioning operator panel. 4.The controller board assembly. The LED adjacent to J12 will be illuminated if the card is powered and good. 5.The operator panel. See “Operator panel service check”. Verify +24 V dc input from the LVPS/HVPS. 1.Turn the printer off. 2.Disconnect the LVPS/HVPS cable from the controller board at J22. 3.Turn the printer on. 4.Verify +24 V dc on positions 6, 17, and 19 of the cable connector (LVPS/HVPS). 5.If voltage is correct, then check the continuity in the other conductors of the cable. If the cable is good, then turn the printer off, and check the connectors to the controller board. 6.Verify that pins 10, 12, 14, 16, and 18 on both the cable and the card connector are grounded. 7.If grounds are not correct on the cable, but the cable passes continuity otherwise, then check the LVPS/HVPS. 8.If the grounds are not correct on the controller board, then replace the controller board. (Check with one probe on the connector pin and the other on the card’s ground plane found at each screw head.) Controller board voltage outputs Turn the printer off, and plug the LVPS/HVPS cable into J22 of the controller board. See the wiring diagram at the end of the manual which identifies the output voltages and grounds for a good controller board. Turn the printer off before plugging or unplugging any connectors.
Code: 910.xx...914.01
Description: 910.xx DC pick motor stall 911.xx DC pick motor excessive PWM 912.xx DC pick motor below speed 913.xx DC pick motor over speed 914.00 DC pick motor error 914.01 Lost encoder feedback
Remedy:
Code: 917.xx
Description: Transfer service error
Remedy: Replace the transfer roll. Note: Do not touch the transfer roll except at its ends. Place a sheet of paper over the roll to prevent damage from finger oils or hand lotion. Check the springs in the left and right transfer roll bearings. Do not try to move the left spring. The bearing assemblies should support the transfer roll, applying evenly distributed forces to the PC drum. Replace the transfer roll assembly if the springs or bearings show signs of damage or fatigue. Inspect the transfer roll for signs of wear, damage,. or contamination. Replace as necessary.
Code: 920.00...925.xx
Description: 920.00 Under temperature during steady state control. 921.00 Under temperature during standby control. 922.00 Fuser failed to ramp to target temperature 923.00 Fuser is over temperature. 924.00 Open thermistor check. 925.xx Wrong fuser installed. The fuser type stored in the cartridge ID does not match the actual fuser installed in the printer.
Remedy: When toner is partially fused to the media, it is usually caused by low fuser temperature. The line voltage to the printer must be within the following limits: • 100 V ac-127 V ac for the 110 V model printer • 200 V ac-240 V ac for the 220 V model printer This printer uses a belt fuser and therefore does not have a lamp. Fuser power cable LVPS/HVPS Fuser Unplug the printer, and disconnect the fuser cable plug from the LVPS/HVPS board connector at CN102. Check for continuity across the fuser by checking across the connector pins. • If there is continuity, then check the LVPS/HVPS. See “LVPS/HVPS service check”. • If there is no continuity, then disconnect the fuser power cable at both ends and check each conductor for continuity. Replace cable if necessary. • If the cable tests good, then replace the fuser. Reconnect the cables, turn the printer on, and at &12, check for approximately +5 V dc on pin 1 and ground on pin 2. If line voltage is incorrect on pin 1, then see “Controller board service check” for more information. Fuser Disconnect the thermistor cable from J11 on the controller board. Measure the resistance across the ends of the thermistor cable. Replace the fuser assembly if the resistance is lower than 1K ohm or shorted. Note: Resistance measures approximately 400K ohms when cool and 1K ohms hot.
Code: 927.00
Description: Service fan error
Remedy: Replace the fan Make sure the fan cable plug is properly seated at J13 (controller board). Turn the printer on. Within a few seconds, the controller board assembly should apply +24 V dc to pin 2. •If voltage is not present, then check or replace the controller board. See “Controller board removal”. •If voltage is present, then check pin 1 for 24 V dc as well. If it is close to 24 V dc while the fan is still idle, then replace the fan. See “Fan removal”.