3-44 Phaser 6300/6350/6360 Color Laser Printer Service Manual
Error Messages and Codes
Dusty Density Sensor
The printer detects an accumulation of dust on the CTD (ADC) Sensor.
Applicable Status Code:
Code 151: Dusty Density Sensor
Initial Actions:
■ Cycle printer power.
■ Clean the CTD (ADC) Sensor.
■ If the problem persists, follow the procedure below.
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.
7 Check the Engine Control Board.
Disconnect P/J51.
1. Close the Interlock Switch while
testing.
2. Is there +24 V for the Toner Motor?
P51-B21 <=> ground Yellow
P51-B26 <=> ground
Magenta
P51-B31 <=> ground Cyan
J51-B36 <=> ground Black
Is there +24 V to the affected Toner
Motor?
Go to Step 8. Replace the
Engine Control
Board
(
page 8-106).
8 Check the TNR Harness Toner Motor
connections for continuity.
Disconnect P/J51 and P511 (Y), P512
(M), P513 (C), 514 (K).
Is the harness conductive?
Go to Step 9 Replace the Toner
Harness.
9 Replace the Toner Cartridge Holder for
the affected color.
Does the error persist?
Replace the
Engine Control
Board
(
page 8-106).
Complete
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack References
■ CTD (ADC) Sensor,
PL5.2.19
■ FSR/ADC Harness, PL5.2.28
■ Print Engine Map 2 - P/J Locator (page 10-6)
■ Print Engine Xerographics (1/2) Wiring
(page 10-24)
Troubleshooting Procedure Table (Continued)
Step Actions and Questions Yes No
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