Xerox 7750 User Manual

Dark or light marks appear on the page in all 
colors and/or in non-printed areas.

Verify that the paper type currently loaded in the 
tray from which you are printing matches the:

■

Correct type for the printer and is properly 
loaded. For information on supported paper 
types and weights, at the printer’s front panel, 
select 

, select 

, then select 

.

■

Paper type selected on the printer’s front 
panel, and in the printer driver. 

If the problem continues, remove toner print 
smears:

At the printer's front panel, select 

, select 

, then select 

. 

Several cleaning pages are printed. 

Repeat Step 1 until no toner appears on the 
pages.

If the problem is not resolved by removing the 
toner print smears, follow these steps:

At the printer’s front panel, select 

, select 

, then select 

. 

The Repeating Defects Page prints with 
instructions for identifying defective units. 

Replace the routine maintenance item(s) 
identified on the Repeating Defects Page to 
correct the problem.

If the Transfer Roller is replaced, at the 
printer’s front panel, select 

, 

select 

, then select

.

Color has shifted outside the designated 
area or is superimposed over another color.

Open and close the front door. The printer 
performs an automatic registration calibration 
with the next print.