Table 36. Black page

 

 

 

Possible cause

Action

 

 

 

 

 

 

 

 

Defective toner cartridge.

Replace the toner cartridge.

 

 

 

 

 

 

 

 

High-voltage contact springs

Inspect and clean the high-voltage contacts. If damaged, replace the

 

 

 

are dirty or defective. The

contacts.

 

 

 

high-voltage contacts are

 

 

 

 

mounted on and above the

 

 

 

 

dc controller PCA and

 

 

 

 

protrude into the toner

 

 

 

 

cartridge cavity.

 

 

 

 

 

 

 

 

 

The dc controller is installed

Remove the dc controller and check the connectors for damage. Reseat the

 

 

 

 

 

 

incorrectly. If the low-voltage

dc controller, being careful to fully seat the connectors.

 

 

 

power supply or

 

 

 

 

dc controller has been

 

 

 

 

removed and replaced, it

 

 

 

 

might not be seated

 

 

 

 

correctly.

 

 

 

 

 

 

 

 

 

The laser beam drive circuit

Replace the dc controller PCA.

 

 

 

or dc controller high-voltage

 

 

 

 

circuit is defective (it is not

 

 

 

 

supplying the correct

 

 

 

 

negative voltage).

 

 

 

 

 

 

 

 

 

Laser/scanner assembly is

Replace the laser/scanner assembly.

 

 

 

faulty (it is turning the laser

 

 

 

 

on continuously).

 

 

 

 

 

 

 

 

 

Connectors between the

Inspect and reseat the connectors. Replace the cables as necessary.

 

 

 

laser/scanner unit and

 

 

 

 

dc controller are not seated

 

 

 

 

correctly or are defective.

 

 

 

 

 

 

Q1860-90918

Chapter 7 Troubleshooting 211

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HP 5100LE manual Black, Possible cause Action