Error Messages and Codes 3-43
Initial Actions:
■ Print the Supplies Usage page to verify remaining cartridge life and install
date.
■ Replace the affected cartridge and cycle printer power.
■ If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack References
■ No Toner Sensor, PL7.2.5
■ Toner Cartridge Holder, PL7.2.1
■ TNR Harness, PL7.2.18
■ Print Engine Map 1 - P/J Locator (page 10-5)
■ Print Engine Developer (1/2) Wiring (page 10-20)
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1
Replace the affected Toner Cartridge.
Does the error persist?
Go to Step 2. Complete
2
Check the No Toner Sensor signals.
Disconnect P/J51.
Is the signal less than +0.2 V for the
affected sensor?
J51-A8 <=> J51-A7 Yellow
J51-A5 <=> J51-A4 Magenta
J51-A2 <=> J51-A1 Cyan
J51-A11 <=> J51-A10 Black
Go to Step 5 Go to Step 3
3
Check the TNR Harness sensor
connections J701 (Y), J702 (M), J703 (C),
J704 (K) <=> J51 for continuity.
Go to Step 4 Replace the TNR
Harness.
4
Test the No Toner Sensor.
Run the Service Diagnostics Toner Low/
Empty test on the affected cartridge.
If the test fails, check the sensor
connector, if the connector is ok, replace
the Toner Sensor. Does the error persist?
Go to Step 5. Complete
5
Test the Toner Motor.
1. Close the Interlock Switch while testing.
NOTE: Run this test for ONLY 5 seconds to
avoid packing the toner.
2. Run the Service Diagnostics Toner
Motor test for the affected cartridge.
Does the Toner Motor function correctly?
Check the toner
stirring auger or
gear for damage.
Replace if
necessary.
Go to Step 6.
6
Is the auger tube of the problem color full
of toner near the hopper end?
Go to Step 7. Inspect the toner
cartridge for
dispense problems.
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