Xerox 7142 Service Manual - page 304

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