Xerox 7142, Service Manual

Page: 304 / 341

9 Troubleshooting RJ-901C/RJ-900C Maintenance Manual
9-60
13
14
15 17. Main board assembly
may be damaged.
Replace main board
assembly. "4.3.3
Replacing
Main Board
Assembly"
p.4-21
16 Mixed color lines are
not overlaid. 1. Is CR belt tension
adjusted to
specification?
Adjust CR belt tension. "7.6 CR
Belt Tension
Adjustment"
p.7-25
2. Is registered head
voltage different from
actual head voltage?
Enter correct head voltage. "5.5.2
Head Rank
Input Menu"
p.5-25
3. Is head slant
inappropriate?
Adjust head slant. "7.6 CR
Belt Tension
Adjustment"
p.7-25
4. Are Bi-Directional
printing positions
aligned correctly?
Align Bi-Directional printing
positions. "5.5.6 CW
Adjustment"
p.5-31
5. Is CW adjustment
inappropriate?
Perform CW adjustment. "5.5.6 CW
Adjustment"
p.5-31
17 Black and other colors
do not align. 1. Check if TF_ENC
assembly and T fence
contact with each
other.
• If they contact with each
other, adjust TF_ENC
assembly and T fence
positions.
• If problem remains even
after position
adjustment, replace CR
board assembly and T
fence.
"4.10.1
Replacing CR
Board
Assembly"
p.4-64
"4.5.4
Replacing T
Fence" p.4-33
Table 9-11 Symptoms, Check Items and Actions for Printing Problems(Continued)
No. Symptom Check item Action Reference