Print quality problems (Continued)

Problem

Cause / action

 

 

 

Unexpected

Ensure correct printer driver is being used.

characters print, or

Select hex trace mode to determine what the problem is.

characters are

Restore factory defaults.

missing.

Make sure the parallel cable or USB cable is firmly plugged in at the back of the printer.

 

 

 

 

Jobs are not printing,

The printer is waiting for an appropriate command.

and an error message

Make sure the print cartridge assembly is installed properly.

is displayed.

Make sure the printer front cover is closed.

 

 

 

 

While in PostScript 3

Ensure the correct PostScript driver is being used.

emulation, the printer

The printer doesn’t have enough memory to print the job. Install more memory.

is flushing data (an

 

 

error message is

 

 

displayed).

 

 

 

 

Printhead service check

FRU

Action

 

 

 

Turn the printer off.

 

Disconnect the printhead cables from J8 and J100 on the controller board.

 

Turn the printer on with the front door closed.

 

On the controller board, verify +5 V dc on pin 10 at J8 and +5 V dc on pins 1, 2, and 3 at

Printhead

J100.

Note: New printhead

Verify grounds on pins 2, 4, and 7 at J8 and on pin 4 at J100.

must be aligned. See

• If voltages or grounds are incorrect, then check the controller board. See “Controller

“Printhead assembly

board service check” on page 2-22 for more information.

electronic

• If voltages are correct, then replace the printhead (comes with cables).

adjustment” on

 

page 3-16.

 

 

 

Transfer roll service check

 

 

FRU

Action

 

 

 

Note: Do not touch the transfer roll except at its ends. Place a sheet of paper over the roll to

 

prevent damage from finger oils or hand lotion.

 

Check the springs in the left and right transfer roll bearings. Do not try to move the left

 

spring. The bearing assemblies should support the transfer roll, applying evenly distributed

 

forces to the PC drum.

Transfer roll

Replace the transfer roll assembly if the springs or bearings show signs of damage, or

 

fatigue.

 

Inspect the transfer roll for signs of wear, damage or contamination.

 

Replace as necessary.

 

 

Diagnostics information 2-37

Page 63
Image 63
Dell 2330dn service manual Printhead service check, Transfer roll service check