Xerox 7142 Service Manual - page 290

9 Troubleshooting

RJ-901C/RJ-900C 　 Maintenance Manual

9-46

9.3.3

Printing Problems

Table 9-11  Symptoms, Check Items and Actions for Printing Problems

No.

Symptom

Check item

Action

Reference

1

Machine cannot print 

sequentially.

1. Plotter driver may be 

defective.

Update plotter driver.

"7.3.5 

Firmware 

Installation" 

p.7-15

2. Program ROM may be 

defective.

Update firmware.

"7.3.5 

Firmware 

Installation" 

p.7-15

3. Main board assembly 

may be damaged.

Replace main board 

assembly.

"4.3.3 

Replacing 

Main Board 

Assembly" 

p.4-21

2

Media feed after 

printing is excessive.

1. Is P_REAR sensor 

assembly judged as 

normal when checked 

through "Test: Sensor" 

of self-diagnosis 

function?

•

Reconnect main board 

assembly connector 

J130, J131.

•

Replace P_REAR sensor 

assembly.

"4.3.3 

Replacing 

Main Board 

Assembly" 

p.4-21

"4.9.2 

Replacing 

P_REAR 

Sensor 

Assembly" 

p.4-63

2. Program ROM may be 

defective.

Update firmware.

"7.3.5 

Firmware 

Installation" 

p.7-15

3. Main board assembly 

may be damaged.

Replace main board 

assembly.

"4.3.3 

Replacing 

Main Board 

Assembly" 

p.4-21

4. Main board assembly 

may be damaged.

Replace main board 

assembly.

"4.3.3 

Replacing 

Main Board 

Assembly" 

p.4-21