Table 7-25

Vertical Dark Streaks

 

 

 

Possible Cause

Action

 

 

Dirty Primary Charge roller.

Change the Toner Cartridge.

 

 

Bad Toner Cartridge.

Replace the Toner Cartridge.

 

 

Incompatible media. During media

Change type of media.

manufacture, inks, or other finishing

 

processes may interfere with the

 

electro-photographic or fusing process.

 

 

 

 

Table 7-26

 

 

Large Print Voids

 

 

 

 

 

 

Possible Cause

Action

 

 

Defective laser shutter.

Check the laser shutter for free operation

 

 

when inserting the EP Toner Cartridge.

 

 

EP Cartridge Support damaged,

Refer to item 4 in Figure 8-4a. Guide

improperly positioned, or missing.

must be installed properly above the EP

 

 

Cartridge, between the laser shutter

 

 

opening and the fuser stop plate.

 

 

Bad transparencies. Transparencies

Use Hewlett-Packard-approved

exhibit this problem if they are not

transparencies (refer to the HP LaserJet

designed for proper toner adhesion.

Family Paper Specifications Guide).

 

 

Bad paper lot. The surface of the paper

Try a known good paper from a reliable

may be too smooth for proper toner

source (refer to the HP LaserJet Family

adhesion.

 

Paper Specifications Guide).

 

 

Poor fusing. Toner may not be fused

Try a known good paper from a reliable

properly to the media.

source (refer to the HP LaserJet Family

 

 

Paper Specifications Guide).

 

 

Print image fusing may not occur

Replace Fuser Assembly (see Figure

correctly.

 

7-11 for location).

 

 

Wet paper. The paper may be damp.

Try a new batch of paper. Store the paper

 

 

in a dry area.

 

 

Transfer roller is dirty.

Replace the transfer roller.

 

 

 

7-46 Troubleshooting