Read Sharp MX-1800N (serv.man16) Service Manual online
MX-1800N SELF DIAG AND TROUBLE CODE 8 – 5
E7
28
LSU control ASIC connection abnormality
PCU
29
LSU-ASIC frequency abnormality
PCU
50
Engine connection trouble
PCU
55
PWB information sum error (Engine detection)
PCU
60
Controller connection trouble (Engine detection)
MFP
61
Controller connection trouble (Engine)
MFP
62
Controller connection trouble (Scanner)
MFP
65
PWB information sum error (Controller detection)
MFP
70
Scanner connection trouble
SCU
75
PWB information sum error (Scanner detection)
SCU
80
Communication trouble between the controller and the
scanner
scanner
MFP
90
Communication trouble between the controller and the
engine
engine
MFP
EE
EC
Auto developer adjustment trouble (The sample level
for every rotation is other than 128
for every rotation is other than 128
± 10.)
PCU
EL
Auto developer adjustment trouble (overtoner error)
PCU
EU
Auto development adjustment trouble (Under-toner
abnormality)
abnormality)
PCU
F1
00
Finisher communication trouble (Machine side
detection)
detection)
PCU
03
Finisher swing motor trouble (MX-FNX1)
PCU
08
Finisher stapler shift motor trouble
PCU
10
Finisher staple motor abnormality
PCU
15
Finisher tray lift motor abnormality
PCU
19
Finisher pre-alignment motor abnormality
PCU
20
Finisher after-alignment motor abnormality
PCU
21
Finisher fan motor abnormality (MX-FNX1)
PCU
33
Finisher punch shift motor trouble
PCU
34
Finisher punch motor trouble
PCU
37
Finisher backup RAM trouble
PCU
50
Finisher incompatibility trouble
PCU
F2
39
Process thermistor trouble
PCU
40
Toner empty sensor abnormality (BLACK)
PCU
41
Toner empty sensor abnormality (CYAN)
PCU
42
Toner empty sensor abnormality (MAGENTA)
PCU
43
Toner empty sensor abnormality (YELLOW)
PCU
44
Black exclusive image density sensor trouble (Transfer
belt surface reflection ratio abnormality)
belt surface reflection ratio abnormality)
PCU
45
Color exclusive image density sensor trouble
(Calibration plate surface reflection ratio abnormality)
(Calibration plate surface reflection ratio abnormality)
PCU
49
LSU thermistor trouble
PCU
50
K phase sensor sensing trouble
PCU
51
CL phase sensor sensing trouble
PCU
58
Process humidity sensor trouble
PCU
64
Toner supply abnormality error (BLACK)
PCU
65
Toner supply abnormality error (CYAN)
PCU
66
Toner supply abnormality error (MAGENTA)
PCU
67
Toner supply abnormality error (YELLOW)
PCU
70
Toner cartridge improper cartridge detection (BLACK)
PCU
71
Toner cartridge improper cartridge detection (CYAN)
PCU
72
Toner cartridge improper cartridge detection
(MAGENTA)
(MAGENTA)
PCU
73
Toner cartridge improper cartridge detection
(YELLOW)
(YELLOW)
PCU
74
Toner cartridge CRUM error (BLACK)
PCU
75
Toner cartridge CRUM error (CYAN)
PCU
76
Toner cartridge CRUM error (MAGENTA)
PCU
77
Toner cartridge CRUM error (YELLOW)
PCU
78
Registration exclusive image density sensor trouble
(Transfer belt surface reflection ratio abnormality)
(Transfer belt surface reflection ratio abnormality)
PCU
80
Half tone process control 1st patch reference value
trouble (BLACK)
trouble (BLACK)
PCU
81
Half tone process control 1st patch reference value
trouble (CYAN)
trouble (CYAN)
PCU
82
Half tone process control 1st patch reference value
trouble (MAGENTA)
trouble (MAGENTA)
PCU
83
Half tone process control 1st patch reference value
trouble (YELLOW)
trouble (YELLOW)
PCU
Trouble code
Trouble code content
Remarks
Trouble
detection
Mechanism
Option
Electricity
FAX
Supply
Main
code
code
Sub
code
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