Banding Parallel To Long Edge Of Print; Wrinkling - Tektronix PHASER 840 Service Manual

Banding parallel to long edge of print

Wrinkling

6.
Replace the drum/transfix assembly.
78 Phaser 840 and 850 Color Printers
Fills are inconsistent with wide bands
of variegated color.
1.
The head-to-drum gap is too great.
Perform the adjustment detailed in
the topic, "Printhead-to-drum
spacing adjustment (Phaser 840
printer)" on page 102.
2.
Refer to the topic "Evaluating the
printhead and cap/wipe/purge
system" on page 80. A properly
functioning printhead maintenance
system is essential for proper
printhead operation.
3.
If the problem persists, replace the
printhead.
0388-55
The print is usually damaged in a
corner with solid fills.
1.
Try different media from a sealed
package. In high-humidity
environments, paper left exposed
(unpacked) absorbs moisture and
begins to warp.
2.
Increase the margin size of the
image, if feasible. Wrinkling
generally occurs in solid fills near
the print's edge.
3.
Ensure the deskew fingers inside
the front cover are not damaged or
missing.
4. Inspect the maintenance drawer
wiper blade. Replace the
maintenance drawer, if necessary.
5. The transfix spring pressure is
incorrect. Perform the procedure
0388-74
"Transfix roller pressure spring
adjustment" on page 110.