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7462
Image quality trouble
Printer Related Troubleshooting
Note: First, get a printout as a base, and follow the symptom table to identify the possible failing FRU's.
Image quality symptoms
•
Faint print (low contrast)—
•
Blank print (no print)—
•
Solid black—
•
Vertical blank lines (White stripes in media transport direction)—
direction)" on page
•
Horizontal
band—"Horizontal white stripes or bands (side to side direction)" on page 2-159
•
Vertical stripes—
•
Horizontal stripes—
•
Partial lack—
•
Spots—
"Spots" on page
•
Afterimage—
•
Background (fog)—
•
Skew—"Skew" on page
•
Media damage—
•
No
fuse—"No fuse" on page
Note: When horizontal lines and/or spots occur periodically, it is possibly caused by a particular roll. In this
case, measure the interval on the print test, and check the relation to the roll in the printer. The interval does not
necessarily match circumference of the roll.
2-152
Service Manual
"Faint print (Low contrast)" on page
"Blank print (no print)" on page
"Solid black" on page
2-157.
2-158.
"Vertical stripes (process direction)" on page
"Horizontal stripes (side to side direction)" on page
"Partial lack" on page
2-163.
2-164.
"After image" on page
2-166.
"Background (fog)" on page
2-168.
"Media damage" on page
2-171.
2-153.
2-155.
"Vertical lines and bands (process
2-160.
2-167.
2-169.
2-161.
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