Xerox WORKCENTRE C2424, Service Manual

Page: 281 / 432

Image-Quality Troubleshooting 5-41
11: Head-to-Drum Check
These prints indicate if the gap between the
printhead and the drum is correct.
Lines:
The horizontal lines of the print are
made up of long and short dashes. Inspect the
first and last 1/2 in. (12 mm) of the black lines
for the vertical distance between the short
dashes and long dashes.
A difference indicates the printhead gaps at
each end of the printhead are not equal.
Text
: Examine each end of the band of text.
Look for fuzziness or differences between the
quality of the characters on the left and right
ends of the print.
A difference indicates the printhead gaps at
each end of the printhead are not equal.
The ends of this system’s printhead rests on
two spacers on the ends of the drum that hold
the head-to-drum gap under much tighter
control than in previous solid ink systems.
There is no head-to-drum adjustment possible
in this system. If the gap is suspect, check that
the printhead is correctly and completely
installed.
12: Manuf X-Axis (Scanner)
This print is used by Manufacturing and
Engineering.
Test Print Examples (Continued)
EFGHIJKLMNOPQ
EFGHIJKLMNOP
EFGHIJKLMNOPQR
EFGHIJKLMNOPQ
EFGHIJKLMNOP
EFGHIJKLMNOP
s