Operation Manual

Wrinkles or creases
1. Print a few more pages to see if the problem corrects itself.
2. Make sure that the environmental specifications for the printer are being met. (See
Operating environment.)
3. Turn over the stack of paper in the tray. Also, try rotating the paper 180°.
4. Make sure that paper is loaded correctly and all adjustments have been made. (See
Loading trays.)
5. Make sure that the type and quality of the paper you are using meet HP specifications.
(See
Paper specifications.)
6.
If envelopes are creasing, try storing envelopes so that they lie flat.
Vertical white lines
1. Print a few more pages to see if the problem corrects itself.
2. Make sure that the type and quality of the paper you are using meet HP specifications.
(See
Paper specifications.)
3. Replace the print cartridge.
Tire tracks
A
A
A
A
A
B
B
B
B
B
C
C
C
C
C
a
a
a
a
a
c
c
c
c
c
b
b
b
b
b
This defect typically occurs when the print cartridge has far exceeded its rated life of 6,000
(Q6511A) or 12,000 (Q6511X) pages. For example, if you are printing a very large quantity
of pages with very little toner coverage.
1. Replace the print cartridge.
ENWW Correcting print-quality problems 135