Atc Amplitude Fail/ Atc Average Fail - Xerox WorkCentre 5021 Service Documentation

092-660/668 ATC Amplitude Fail/ ATC Average Fail

BSD-ON:CH9.3
[ATC Amplitude Fail]
The output amplitude of the ATC Sensor in the ATC (Automatic Toner Control) measurement is
small.
[ATC Average Fail]
The average output value is not within the specified range in the ATC (Automatic Toner Con-
trol) measurement.
Cause/Action
1. Install a Toner Cartridge that contains Toner. Copy a Test Chart (499T 00247), etc. and
check whether the density has recovered.
2. Check the Toner Dispense Motor (Output Check [092-001]) for operation failure.
3. Check the Toner transport path for Toner blockage.
4. Check the connection between the ATC Sensor (Drum Cartridge)
MCU PWB J409 for open circuit, short circuit, and poor contact.
5. If no problem is found, replace the following parts in sequence:
• Drum Cartridge (PL 8.1)
• ESS/MCU PWB (PL 18.1)
092-661 Temperature Sensor Fail
BSD-ON:CH9.4
The output value of the Temperature Sensor is not within the specification range.
Cause/Action
1. Turn the power OFF and ON.
2. Check the connection between the HVPS J500-1 and the ESS/MCU PWB J402-14 for
open circuit, short circuit, and poor contact.
3. If no problem is found, replace the following parts in sequence:
• HVPS (PL 18.1)
• ESS/MCU PWB (PL 18.1)
Initial Issue
WorkCentre 5021/5019
092-910 ATC Sensor Fail
BSD-ON:CH9.3
The frequency at which the ATC Average Fail or the ATC Amplitude Fail has been occurring is
at the threshold value or higher.
NOTE: To clear this Fail, clear the value of NVM [752-059] (ATC Fail) or NVM [752-060] (ATC
Fail Continuous Count) to '0'. If the machine is not repaired back to normal status, this Fail will
occur again during the operation.
NOTE: Setting the NVM [752-005] (Dispense Mode) to '0' (Timer Disp) or '2' (ICDC Disp) will
prevent ATC related fail from occurring and enable you to use the M/C. However, this means
that the Toner density will not be controlled.
Cause/Action
1. Install a Toner Cartridge that contains Toner. Copy a Test Chart (499T 00247), etc. and
check whether the density has recovered.
(PL 8.2)
2. Check the Toner Dispense Motor (Output Check [092-001]) for operation failure.
3. Check the Toner transport path for Toner blockage.
P615 and the ESS/
4. Check the connection between the ATC Sensor (Drum Cartridge)
MCU PWB
5. Check for toner blockage within the Developer Unit.
6. If no problem is found, replace the following parts in sequence:
• Drum Cartridge
• ESS/MCU PWB
08/2012
2-45
J409 for open circuit, short circuit, and poor contact.
(PL 8.1)
(PL 18.1)
(PL 8.2)
P615 and the ESS/
Status Indicator RAPs
092-660/668, 092-910