Error Messages and Codes 3-15
Black ATC Sensor Failure, Code 15
The ATC Sensor detects an insufficient amount of developer.
Note
If this failure reoccurs three times successively, an Engine NVRAM value is set
preventing further printer use until the Clear Tech Rep Fault (see pg. 6-20) is
performed.
If this error is intermittant, replace the black developer clutch.
Troubleshooting References
Applicable Parts Wiring and Plug/Jack Map References
■ ATC Sensor and Harness
■ Engine Control Board
Troubleshooting Procedure
Step Actions and Questions Yes No
1
Is the black toner and/or developer empty? Replace the toner
or developer.
Go to step 2.
2
Is the ATC sensor clean and free of dust,
toner or any other contaminates?
Go to step 3. Clean the ATC
sensor.
3
1. Check the ATC sensor wiring harness
(P/J132).
2. Is the wiring harness or the sensor
defective?
Replace the ATC
Sensor and/or
wiring harness.
Go to step 4.
4
1. Remove the rear cover and rear shield.
2. Measure the voltage at P405A3 on the
engine control board.
3. Is the voltage between +1 and
+3 VDC?
Go to step 5. Replace the
engine control
board.
5
1. Measure the voltage at P405A4 on the
engine control board.
2. Is the voltage +5 VDC?
Go to step 6. Replace the
engine control
board.
6
1. Measure the voltage at P405A2 on the
engine control board.
2. Is the voltage 0 VDC?
Go to step 7. Replace the
engine control
board.
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