Instruction Manual
Solving Print Quality Problems
6-14  ❖   DocuPrint 4508 User Guide
Black prints
The page is entirely black
Defective Printer Cartridge, or the 
Printer Cartridge is at its end of life
Replace Printer Cartridge 
(Perform the Printer Cartridge 
cleaning procedure discussed on 
page 6-16 before replacing the 
Printer Cartridge)
Printer power supply has failed Contact your dealer or Xerox/
Rank Xerox
Spot deletions
Areas of the print are extremely 
light or missing
Damp paper stock Replace paper stock
Defective Printer Cartridge, or the 
Printer Cartridge is at its end of life
Replace Printer Cartridge
Vertical line deletions
Localized print deletions forming 
narrow lines running in the 
direction of the paper movement
Printer Cartridge not installed 
correctly.
Remove or reinstall the Printer 
Cartridge
Defective paper stock, creases, 
folds, etc.
Replace paper stock
Defective Printer Cartridge, or the 
Printer Cartridge is at its end of life
Replace Printer Cartridge
Horizontal line deletions
Localized print deletions 
appearing as bands running 
across the page perpendicular to 
the direction of paper movement
Defective paper stock, creases, 
folds, etc.
Replace paper stock
Page too complex Decrease page complexity or add 
printer memory
Vertical dark streaks
Black lines running across the print 
in the direction of paper 
movement
Contaminated paper path Clean paper path. Print several 
blank sheets of paper to remove 
any toner accumulations
Defective Printer Cartridge, or the 
Printer Cartridge is at its end of life
Replace Printer Cartridge
(Perform the Printer Cartridge 
cleaning procedure discussed on 
page 6-16 before replacing the 
Printer Cartridge)
Table 6.3 Solving print quality problems (continued)
Problem Possible Cause(s) Corrective Action(s)
Table6.3  Page2 of 4
4508-c06.frm Page 14 Wednesday, May 22, 1996 7:48 AM










