Oki C9800 Series, Service & Troubleshooting Manual

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Toner Sensor Detection Error
Error Codes that Apply
160 Yellow 161 Magenta 162 Cyan 163 Black
1. Cycle the printer's power.
2. If the problem persists follow the procedure below.
1. Toner Cartridge
2. Image Drum Unit
3. Toner Motor
4. Imaging Drum Unit Sensor Board
5. Engine Control Board
Steps Action Taken Yes No
1
Check the following for evidence of
fault or damage:
Toner Cartridge
Imaging Unit Agitator Bar
Low Toner Sensors
Is there any damage, debris or
blockage?
Replace any damaged
parts.
Go to Step 2.
2
Test the affected Toner Motor.
1. Remove the Toner Cartridge.
2. Run the motor Clutch test to
test the Toner Supply Motor test.
Does the motor rotate?
Go to Step 3.
Replace the motor. If
the error persists,
replace the Motor
Driver Board
3
Does the plunger that engages the
Agitation Bar move in and out while
the Toner Motor rotates?
Go to Step 4. Replace the Toner
Supply Camshafts
4
Test the affected Low Toner Sensor.
1. Remove the CM or YK Imaging
Units.
2. Run the Scan switch test to test
the Toner Cart Sensor.
Does the sensor function correctly?
Replace the Engine
Control Board
Replace the
Imaging Unit
Sensor Board
Initial Troubleshooting Actions to Take
Parts of the Printer that Apply
Troubleshooting Procedure