MX3114N TROUBLESHOOTING 7 – 3
Laser trouble
• LSU breakdown
PCU
E7 (20, 28,
29)
L6 (10)
✕
✕
✕
✕
✕
✕
✕
✕
*10
Engine trouble 1
• Connection
trouble (Model
data discrepancy)
(PCU detection)
A0 (21)
E7 (50, 55)
F1 (50)
✕
✕
✕
✕
✕
✕
✕
✕
✕
Engine trouble 2
• PCU troubles
(motor, fusing,
etc.)
C1 (10, 14)
C4 (00)
F2 (22, 40, 64,
70, 74, 91)
H2 (00, 01,
02, 03)
H3 (00, 01,
02)
H4 (00, 01,
02, 30)
H5 (01)
H7 (10, 11)
L4 (02, 03, 04,
05, 06, 11, 12,
16, 31, 32, 35,
43, 50, 51)
L8 (01, 02)
U2 (90, 91)
✕
✕
✕
✕
✕
✕
✕
✕
*10
Process system
trouble
• LSU/Process
system
breakdown
E7 (21, 22,
23)
F2 (23, 24, 25,
41, 42, 43, 65,
66, 67, 71, 72,
73, 75, 76, 77,
92, 93, 94)
✕
*19
✕
*19
✕
*19
✕
*19
✕
*19
✕
*19
✕
*19
✕
*10
*19
Paper feed tray 1
trouble
• Paper feed tray 1
breakdown
F3 (12)
3
3
3
3
*10
Paper feed tray 2
trouble
• Paper feed tray 2
breakdown
F3 (22)
3
3
3
3
*10
Paper feed tray 3
trouble
• Paper feed tray 3
breakdown
U6 (01)
3
3
3
3
*10
Paper feed tray 4
trouble
• Paper feed tray 4
breakdown
U6 (02)
3
3
3
3
*10
Paper feed tray
other troubles
• Paper feed tray
other breakdown
U6 (00, 10,
50, 52)
11
11
11
11
*10
Staple trouble
• Staple breakdown
F1 (08, 10)
4
4
4
4
4
4
4
4
*10
Finisher trouble
• After-process
breakdown
F1 (00, 03, 15,
19, 20, 33, 34,
37)
4
4
4
4
4
4
4
4
*10
Other troubles
• Other troubles
EE (EC, EL,
EU)
Process control
trouble
• Process control
breakdown (PCU
detection)
F2 (39, 49, 50,
51, 58, 78)
*12
Operation
disable trouble
• Connection
trouble (Model
data discrepancy)
(SCU detection)
SCU
A0 (22)
✕
✕
✕
✕
✕
✕
✕
✕
✕
SCU CPT ASIC
trouble
• SCU CPT ASIC
error
UC (02)
9
9
9
9
9
SCU ASIC
trouble (SCU
detection)
• SCU ASIC error
(SCU detection)
UC (20)
✕
✕
✕
✕
✕
Scanner trouble
1
• SCU EEPROM
error
U2 (80, 81)
✕
✕
✕
✕
✕
Scanner trouble
2
• Scanner section
breakdown
(mirror motor,
lens, copy lamp)
L1 (00)
L3 (00)
✕
✕
✕
✕
✕
CCD trouble
• CCD breakdown
(shading, etc.)
E7 (10, 11, 14)
✕
✕
✕
✕
✕
Trouble content
Judg-
ment
block
Trouble code
Operatable mode
Copy scan
(including
interrup-
tion)
Scan
(Push)
Scan
(Pull)
Scan-
To
HDD
List
FAX
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