Adjusting the Print Image
Operator’s Guide 21
The following table lists possible print
quality problems and a brief description
of the corrective action required. If the
corrective action does not fix the
problem, clean the corona wires or call
your authorized service technician.
Problem
Corrective Action
Skewed
print
Properly reset the paper on the tractors. (See the “Skewed
Paper” section on page 16
.)
W
rong character
size; wrong font
Make sure that your software asks for the right font. In
addition, make sure the font is available on the printer disk or
has been downloaded to printer RAM.
Light print on one
side; dark print on
the other
Remove the developer unit and gently rock it side to side to
evenly distribute the toner
. Replace the developer unit into
the printer; resume printing. Properly set the green locking
clamps on the developer unit.
Uniformly light
prints
Locate the green print density knob located along the left
side of the printer
. T
urn the knob clockwise to darken the
print (more toner will be consumed). Check the LCD for error
messages. If “ADD TONER AND CHK WASTE BOTTLE”
appears, add toner
. Check the number of copies, and, if
necessary
, replace the OPC drum unit. (See the section on
replacing printer supplies, page 22
.)
Uniformly dark
prints
Locate the green print density knob located along the left
side of the printer
. T
urn the knob counterclockwise to lighten
the print (less toner will be used).
note
If all printer consumables have been
replaced and image defects and/or paper
creases persist, the fuser may need to be
replaced. The fuser is the unit that heats
the toner so that it adheres to the paper
.
When the fuser is worn, print quality may
deteriorate. On average, the fuser should
provide optimum print quality for 300,000
pages when using paper rated between 16
and 25 pounds. Label stock and other
heavier media may reduce the life of the
fuser
. Contact your authorized service
representative for fuser replacement.
