Description: 841.00 Image pipeline ASIC 841.01 Service image processing unit: AFE register mismatch 841.03 Service image processing unit: SCNCHN DMA 841.04 Service image processing unit: new line too soon interrupt 841.07 Service image processing unit: tonal data overrun 841.09 Service image processing unit: image processing too slow 841.96 System time out: SIZAR out of band interrupt 841.97 Service image processing unit: output data uncollected 841.98 Service image processing unit: SCNCHN DMA underrun 841.99 Service image processing unit interrupt handler delayed crash 842.00 Scanner failure: communication failure
Remedy: 1 Restart the device, and retry the scan / copy job. Repeat this step with a few copy jobs. Does the error return? Go to step 2. No issue. 2 Is the CCD ribbon cable properly connected to J2 on the controller board? Go to step 3. Properly connect the ribbon cable to J2. 3 Replace the flatbed unit. See “Flatbed removal”. Did this resolve the issue? Problem resolved. Replace the controller board. See “Controller board removal”.
Code: 843.00
Description: Scanner failure: carriage failed to home or move to desired position
Remedy: Carriage mechanical failure. 1 Ensure that the flatbed motor cable (JFBM1) is connected. Is the cable connected? Go to step 2. Properly connect the cable. 2 Check pin 1 in JFBM1 for voltage. The voltage is only present when a flatbed copy job is running. The voltage should measure +24V AC. Is voltage present? Replace the flatbed unit. See “Flatbed removal”. Replace the controller board. See “Controller board removal”.
Remedy: 1 If the ADF is multi-feeding, check for dirt on the ADF separator pad and ADF separator rollers. Are they dirty? Clean them with a lint free cloth and isopropyl alcohol. Replace the separator pad and ADF pick roll. 2 If the paper is skewing when it is fed into the ADF, check the paper guide width. Is it set correctly? Go to step 3. Set the paper guides so they contact the edges of the paper. 3 If paper is skewing when fed or jamming check to see if the top cover is open or ajar. Is the ADF top cover open or ajar? Properly close the top cover. If the paper is jamming in the ADF, go to step 6. 4 Is paper failing to feed into the ADF? Go to step 5. There is no issue. 5 Perform the ADF paper present, scan 1st and scan 2nd sensor tests. See “Scanner Tests”. Are the sensors working properly? Go to step 6. Go to step 9. 6 Check the leading edge of the paper to ensure the paper is not curled or bent in a way that would keep it from contacting the paper present sensor actuator. Is the paper damaged? Bad media. Go to step 7. 7 Is there dirt in the sensors, or is the paper present actuator stuck? Clean the sensors, or remove debris from the actuators. Go to step 8. 8 Are the sensor actuators on the ADF mechanism cover damaged? Replace the ADF. Go to step 9. 9 Is the ADF connector properly connected to J4 on the controller board? Go to step 10. Properly connect the cable to the controller board. 10 Inspect the connections on the ADF relay card in the ADF. Are all the connections properly connected? Go to step 11. Secure all the connections. 11 Check the ADF cable for continuity. Is there continuity? Go to step 12. Replace the ADF cable. 12 Check for signals or voltages from J4 on the controller board. Pin 11 and 12 should measure +24VDC. Pin 5 should measure +14VDC. Are there signals or voltages present? Replace the ADF unit. See “ADF removal”. Replace the controller board. See “Controller board removal”.
Code: 843.02...846.07
Description: 843.02 Scanner Failure: general mechanical failure detected 843.03 Scanner Failure: pick roller engage failure 843.04 Scanner Failure: pick roller disengage failure 844.yy Scanner failure: lamp failure 844.00 Front scan module output level error 844.01 Front scan module lamp level too low: front Mono channel, Front Color channels, Front Red channel, Front Green channel, and/or Front Blue channel is detected to 844.02 have low lamp level. 844.03 Rear scan module lamp level too low: Rear Mono channel, Rear Color channels, Rear Red channel, Rear Green channel, and/or Rear Blue channel is detected to have low lamp level. 845.yy CCD failure 845.00 Front scan module cable failure or SCC card failure 845.01 Rear scan module cable failure or SCC card failure 845.02 Cable/SCC failure: front scan module connector or cable failure. 845.03 Cable/SCC failure: rear scan module connector or cable failure 846.00 Front calibration strip unusable 846.01 Rear calibration strip unusable 846.02 Front calibration strip too far left 846.03 Front calibration strip too far right 846.04 Front calibration strip has excessive skew 846.05 Front calibration strip has excessive bow 846.06 Front calibration strip has excessive dark area: front excessive variability for Mono, Red, Green, or Blue. 846.07 Front magnification exceeds limits: rear excessive variability for Mono, Red, Green, or Blue.
Remedy: 1 Restart the device, and retry the scan / copy job. Repeat this step with a few copy jobs. Does the error return? Go to step 2. No issue. 2 Is the CCD ribbon cable properly connected to J2 on the controller board? Go to step 3. Properly connect the ribbon cable to J2. 3 Replace the flatbed unit. See “Flatbed removal”. Did this resolve the issue? Problem resolved. Replace the controller board. See “Controller board removal”.
Code: 847.00...849.01
Description: 847.00 Modem failure: the Configuration ID bit that describes the device’s modem doesn’t match the actual modem installed in the device. 847.01 Fax storage: the amount of flash storage available on the device is too small. Note: The NAND Flash partition can shrink as bit failures cause blocks to be invalidated. 847.02 Fax storage: the device’s flash partition is invalid or unavailable. 848.01 Modem/Config ID mismatch: a device has a modem installed, but its Configuration ID indicates that a modem shouldn’t be present. 849.01 HD/Config ID mismatch: a device has a hard drive installed, but its Configuration ID indicates that a hard drive shouldn’t be present.
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: 88
Description: Cartridge Low
Remedy: This warning is displayed when the cartridge is low. Press Check to continue.