Printer Related Troubleshooting; Image Quality Trouble - Lexmark X651de Service Manual

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 2-162
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.
"Faint print (Low contrast)" on page
"Blank print (no print)" on page
"Solid black" on page 2-160.
2-161.
"Vertical stripes (process direction)" on page
"Horizontal stripes (side to side direction)" on page
"Partial lack" on page 2-166.
2-167.
"After image" on page 2-169.
"Background (fog)" on page
2-171.
"Media damage" on page
2-174.
2-156.
2-158.
"Vertical lines and bands (process
2-163.
2-170.
2-172.
7462
2-164.
Diagnostic information
2-155
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