RJ-901C/RJ-900C
Maintenance Manual
9 Troubleshooting
9-33
9.3 Troubleshooting Without Error Messages
This section describes the symptoms of errors without an error message as well as the check items and
recovery actions.
9.3.1
Initial Operation Problems
Table 9-9 Symptoms, Check Items and Actions for Initial Operation Problems
No.
Symptom
Check item
Action
Reference
1
Machine power
cannot be turned ON
1. Is operation panel
unit assembly cable
broken or shorted?
Replace panel cable.
"4.2.2
Removing
Operation
Panel Unit"
p.4-8
2. Panel unit assembly
may be damaged.
Replace panel unit
assembly.
"4.2.2
Removing
Operation
Panel Unit"
p.4-8
3. Inlet assembly may
be defective.
Replace inlet assembly.
"4.3.5
Replacing
Inlet
Assembly"
p.4-24
4. Power board
assembly may be
defective.
Replace power board
assembly.
"4.3.4
Replacing
Power Board
Assembly"
p.4-22
2
Abnormal LCD
operation (no
displays/garbled
characters)
1. Check power supply
voltage (AC100V).
Replace power board
assembly.
"4.3.4
Replacing
Power Board
Assembly"
p.4-22
2. Check power supply
voltage (DC5V).
Replace power board
assembly.
"4.3.4
Replacing
Power Board
Assembly"
p.4-22
3. Check power supply
voltage (DC24V,
DC42V).
Replace power board
assembly.
"4.3.4
Replacing
Power Board
Assembly"
p.4-22
Summary of Contents for 7142
Page 24: ...1 Safety Instructions RJ 901C RJ 900C Maintenance Manual 1 12...
Page 34: ...2 Product Overview RJ 901C RJ 900C Maintenance Manual 2 10...
Page 50: ...4 Parts Replacement RJ 901C RJ 900C Maintenance Manual 4 4 Rear Upper Lower Right Front Left...
Page 118: ...4 Parts Replacement RJ 901C RJ 900C Maintenance Manual 4 72...
Page 121: ...RJ 901C RJ 900C Maintenance Manual 5 Self Diagnosis Mode 5 3 5 9 9 Media Feed Menu 5 69...
Page 188: ...5 Self Diagnosis Mode RJ 901C RJ 900C Maintenance Manual 5 70...
Page 198: ...6 Maintenance Mode2 RJ 901C RJ 900C Maintenance Manual 6 10...
Page 236: ...7 Adjustment RJ 901C RJ 900C Maintenance Manual 7 38...
Page 244: ...8 Maintenance RJ 901C RJ 900C Maintenance Manual 8 8...
Page 340: ......
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