TAG 801: Prints Light or Light With Carrier Particles

Error Code:

801

Possible Defects: Photoconductor unit

Connectors or wiring

Main drive gear assembly

Transfer charger unit

Power control #2 board

Print-head assembly

High voltage unit

Toner supply motor

PCL board

Upper paper guide assembly

Developer unit

If the problem still exists after completing this TAG, go to TAG 800: Prints Blank or With Dark Horizontal Bands.

1 Run test prints.

Examine the letters A, V, and W for jaggedness on the diagonal lines.

Are they jagged?

No: Continue.

Yes: Refer to Chapter 4, “Print Quality Samples” . Review the printhead problem print sam- ples, identify one similar to the test prints, and turn to the associated TAG.

2 Turn the printer off and unplug the power cord.

Verify that J/P12, J/P13, J/P18, and J/P41 are connected properly.

Perform the every-call cleaning procedure, described in Chapter 9, “General Printer Mainte- nance” .

Clean the printhead lens and toner patch sensor located on the developer unit.

Turn the printer on.

Run test prints.

Has the problem been resolved?

No: Continue.

Yes: Contamination or loose connectors were at fault. Turn to TAG 002: Check & Problem Resolution.

3 Check the voltages, as outlined in Chapter 9, “General Printer Maintenance” .Are the voltages cor- rect?

No: Replace the high voltage power supply unit, then turn to TAG 002: Check & Problem Resolution.

Yes: Continue.

4 Have the photoconductor unit, main charger, developer unit, and toner cartridge been replaced recently?

No: Continue.

Yes: Go to #7 in this TAG.

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Troubleshooting Analysis Guide (TAGs)