Xerox 7142 Service Manual - page 320

9 Troubleshooting

RJ-901C/RJ-900C 　 Maintenance Manual

9-76

2

Machine power is shut 

off during printing.

1. Is power cable 

shorted?

Check by a circuit tester.

-

2. Is there any electric 

leakage?

Check for short to chassis 

ground due to damaged cable 

insulation.

-

3. Check power supply 

voltage (AC100V).

Replace power board 

assembly. 

"4.3.4 

Replacing 

Power Board 

Assembly" 

p.4-22

4. Check power supply 

voltage (DC5V).

Replace power board 

assembly. 

"4.3.4 

Replacing 

Power Board 

Assembly" 

p.4-22

5. Check power supply 

voltage (DC24V, 

DC42V).

Replace power board 

assembly. 

"4.3.4 

Replacing 

Power Board 

Assembly" 

p.4-22

6. Power board assembly 

may be defective.

Replace power board 

assembly. 

"4.3.4 

Replacing 

Power Board 

Assembly" 

p.4-22

3

Ink cartridge cannot be 

inserted.

1. Is pointer of ink sensor 

assembly deformed or 

damaged?

Replace ink sensor assembly. 

"4.8.1 

Replacing Ink 

Holder (I/H) 

Assembly" 

p.4-55

2. Is ink NOT sensor 

(black resin lever 

switch) of ink sensor 

assembly damaged?

Replace ink sensor assembly. 

"4.8.1 

Replacing Ink 

Holder (I/H) 

Assembly" 

p.4-55

Table 9-15  Symptoms, Check Items, and Actions (Continued)

No.

Event/symptom

Check item

Action

Reference