MX3500N SELF DIAG AND TROUBLE CODE 8 – 6
F2 73 Toner cartridge improper cartridge detection
(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)
PCU
80 Half tone process control 1st patch reference value
trouble (BLACK)
PCU
81 Half tone process control 1st patch reference value
trouble (CYAN)
PCU
82 Half tone process control 1st patch reference value
trouble (MAGENTA)
PCU
83 Half tone process control 1st patch reference value
trouble (YELLOW)
PCU
84 Half tone process control 2nd patch reference value
trouble (BLACK)
PCU
85 Half tone process control 2nd patch reference value
trouble (CYAN)
PCU
86 Half tone process control 2nd patch reference value
trouble (MAGENTA)
PCU
87 Half tone process control 2nd patch reference value
trouble (YELLOW)
PCU
92 High-density process control density correction error
(CYAN)
PCU
93 High-density process control density correction error
(MAGENTA)
PCU
94 High-density process control density correction error
(YELLOW)
PCU
F3 12 Main unit tray 1 lift-up trouble PCU
22 Main unit tray 2 lift-up trouble PCU
F6 00 Communication trouble between the ICU and the FAX Refer to FAX manual for details
01 FAX board EEPROM read/write error
04 FAX MODEM operation trouble
21 Combination error between the TEL/LIU PWB and the
FAX soft switch
30 Access error to power controller on the FAX board
(FAX detection)
97 FAX PWB incompatibility trouble
98 Combination error between the FAX-BOX PWB
destination information and the machine destination
information.
F9 00 Communication trouble between the controller and the
printer controller (EF1)
MFP
H2 00 Non-contact thermistor detection thermistor open
(TH_UM_AD2)
PCU
01 Lower thermistor open (TH_LM) PCU
02 Sub thermistor open (TH_US) PCU
03 Non-contact thermistor compensation thermistor open
(TH_UM_AD1)
PCU
04 Hang-up preventing thermistor open (TH-US) PCU
H3 00 Fusing section high temperature trouble (TH_UM) PCU
01 Fusing section high temperature trouble (TH_LM) PCU
02 Sub thermistor fusing section high temperature trouble
(TH_US)
PCU
04 Fusing section high temperature trouble (TH_US) PCU
H4 00 Fusing section low temperature trouble (TH_UM_AD2) PCU
01 Fusing section low temperature trouble (TH_LM) PCU
02 Sub thermistor fusing section low temperature trouble
(TH_US)
PCU
30 Thermistor differential input trouble (TH_UM) PCU
H5 01 5 continuous detection of POD1 not-reached jam PCU
L1 00 Mirror feed trouble Scanner
L3 00 Mirror return trouble Scanner
L4 02 Paper feed motor lock trouble PCU
04 Developing motor trouble (BLACK) PCU
05 Developing motor trouble (COLOR) PCU
06 Transfer belt separation position sensor trouble PCU
11 Shift motor trouble PCU
Trouble code
Trouble code content Remarks
Trouble
detection
Mechanism Option Electricity FAX Supply
Main
code
Sub
code
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