Xerox 540 User Guide

Large, uneven and repeating 
streaks appear on the page.

An internal belt on the imaging unit is 
slipping.

Replace the imaging unit.

One vertical, dark and even 
fine line appears on the print 
through all colors.

Either the imaging unit or the fuser is 
scratched.

Replace the imaging unit; make sure that 
the old imaging unit is not exposed to light 
for more than 45 seconds.  

If a new imaging unit does not correct the 
problem:

■

Put the old imaging unit back into the 

printer.

■

Repack the new imaging unit.

■

Replace the fuser.

Front panel reports:

Fuser:replace

The fuser is worn out.

Replace the fuser.

A piece of the printed image 
is missing and reappears out 
of place, approximately 
100 mm (4 in.) down on the 
page.

The fuser is worn out.

Replace the fuser.

Print Quality Test Page

Cyan

Magenta

Yellow

Black

Count

Image Unit

1505

Corona

487

Transfer Kit

484

Fuser

0

Print Quality Test Page

Cyan

Magenta

Yellow

Black

Count

Image Unit

1505

Corona

487

Transfer Kit

484

Fuser

0