Phaser 8400/8500/8550/8560 Color Printer Service Manual 5-31
Print-Quality Troubleshooting
Wrinkling
Damage is usually in a corner with solid fills. This problem is more often seen
on short-grain media. Some wrinkling on envelope flaps is normal. Wrinkling
may occur on the second side of a 2-sided print on the secondary colors. This
indicates the Preheater is too open on the duplex side of the print.
o
e
On the paper’s packaging, an underline under the 11 (in 8.5 in. x 11 in.)
indicates the paper is long-grain.
White Stripes Troubleshooting Procedure
Step Questions and Actions
Yes No
1 Print the Solid Fills test print to reveal an X-
axis problem. See
“Primary Solid Fills 10x”
on page 5-40 for more information.
Are the pinstripes apparent on the prints?
Go to Step 2. Complete.
The problem
is not with the
print engine.
2 Check X-Axis motion and verify there is
nothing interfering such as a poorly dressed
cable or screw. Replace any defective parts.
Did this correct the problem?
Complete. Go to Step 3.
3 Check that there are no harnesses
interfering with the Printhead. Repair or
replace any defective part or interference
with the Printhead.
Did this correct the problem?
Complete. Replace the
X-Axis Motor.
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