Sharp Mx 2300n Service Manual

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 22
 
H4-00 Fusing section low temperature trou-
ble (TH_UM_AD2)
 
H4-01 Fusing section low temperature trou-
ble (TH_LM)
 
H4-02 Sub thermistor fusing section low
temperature trouble (TH_US)
 
H4-30 Thermistor differential input trouble
(TH_UM)
 
H5-01 5 continuous detection of POD1 not-
reached jam
 
L1-00 Mirror feed trouble
 
L3-00 Mirror return trouble 
 
L4-02 Paper feed motor lock trouble
Trouble content The temperature does not reach the specified...

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 23
 
L4-04 Developing motor trouble (BLACK)
 
L4-05 Developing motor trouble (COLOR)
 
L4-06 Transfer belt separation position sen-
sor trouble
 
L4-11 Shift motor trouble
 
L4-30 Controller fan/HDD fan motor trouble
 
L4-31 Paper exit cooling fan trouble
Trouble content The motor lock signal is detected during rotation of the 
developing motor.
Section PCU
Case 1 Cause Harness connection trouble between the PCU PWB 
and the developing motor.
Check 
and...

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 24
 
L4-32 Power cooling fan/ozone exhaust fan
trouble
 
L6-10 Polygon motor lock detection
 
L8-01 No full wave signal
 
L8-02 Full wave signal width abnormality
 
L8-20 Power controller communication trou-
ble
 
PC--- Personal counter not installed
 
U1-01 Battery trouble
 
U2-00 EEPROM read/write error 
(MFP detection)
 
U2-05 HDD/Flash/EEPROM data discrepancy
Trouble content When the power cooling fan/ozone exhaust fan is 
operated, the fan operation...

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 25
 
U2-10 SRAM user authentication index
check sum error
 
U2-11 EEPROM check sum error 
(MFP detection)
 
U2-22 SRAM memory check sum error
 
U2-23 MFPC section SRAM memory 
individual data check sum error
 
U2-24 SRAM memory user authentication
counter check sum error
 
U2-25 Flash memory user authentication
counter check sum error
 
U2-30 Serial number data discrepancy 
(MFP ↔ PCU)
 
U2-50 HDD section individual data check
sum error
Trouble content...

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 26
 
U2-80 EEPROM read/write error 
(SCU detection)
 
U2-81 Adjustment value check sum error
(SCU detection)
 
U2-90 EEPROM read/write error 
(PCU detection)
 
U2-91 EEPROM (PCU) check sum error
 
U6-00 Desk communication trouble
 
U6-01 Tray 1 lift-up trouble
 
U6-02 Tray 2 lift-up trouble
 
U6-09 LCC lift motor trouble
Trouble content 1) EEPROM version error
2) Write error to EEPROM
Section Scanner
Case 1 Cause EEPROM trouble, installation of EEPROM...

MX-2300/2700 N/G  SELF DIAG AND TROUBLE CODE  8 – 27
 
U6-10 Desk transport motor trouble
 
U6-20 LCC communication trouble
 
U6-21 LCC transport motor trouble
 
U6-22 LCC 24V power abnormality
 
U6-50 Desk incompatibility trouble
 
U6-51 LCC incompatibility trouble
 
UC-02 CPT-ASIC abnormality
 
UC-20 Document control module trouble
Trouble content Desk transport motor operation trouble
Section PCU
Case 1 Cause Motor lock, motor RPM abnormality, overcurent to the 
motor, console finisher control PWB...

MX-2300/2700 N/G  MAINTENANCE  9 – 1 MX2700N
Service Manual [9] MAINTENANCE
1. Maintenance system table
✕: Check (Clean, replace, or adjust according to necessity.) {: Clean ▲: Replace U: Adjust ✩: Lubricate †: Shift the position.
Unit name Part nameMonochrome 
supply/
Mechanical 
partsWhen 
calling100
K200
K300
K400
K500
K600
K700
K800
K900
K1000
K11 0 0
K1200
KRemark/Refer to the 
Parts Guide. Block/Item No. (Only the replacement 
parts are described.) Color supply 60
K120
K180
K240
K300
K360
K
Drum...

MX-2300/2700 N/G  MAINTENANCE  9 – 2
Transfer 
sectionSecondary belt 
follower rollerMechanical 
parts✕✕{✕✕{✕✕{✕✕{
Secondary transfer 
idle gear✕✕✕▲✕✕▲✕✕▲✕✕▲(P/G No.: [29]-6)
Sensors (Process 
control resist 
sensors)✕{{{{{{{{{ { { {
Primary CL roller▲▲▲▲▲▲▲▲▲ ▲ ▲ ▲(P/G No.: [26]-56)
Cleaner seal✕ ✕✕✕✕✕✕✕✕✕ ✕ ✕ ✕
Cleaner seal R✕ ✕✕✕✕✕✕✕✕✕ ✕ ✕ ✕
Transfer toner 
reception seal✕ ✕✕✕✕✕✕✕✕✕ ✕ ✕ ✕
Fusing 
sectionUpper heat roller Mechanical 
parts✕ ✕▲✕▲✕▲✕▲✕ ▲ ✕ ▲(P/G No.: [32]-32)
Lower heat roller✕ ✕▲✕▲✕▲✕▲✕...

MX-2300/2700 N/G  MAINTENANCE  9 – 3
2. Details of maintenance
A. Drum peripheral
✕: Check (Clean, replace, or adjust according to necessity.) {: Clean ▲: Replace U: Adjust ✩: Lubricate †: Shift the position.
No.Part nameMonochrome 
supply/
Mechanical partsWhen 
calling100
K200
K300
K400
K500
K600
K700
K800
K900
K1000
K11 0 0
K1200
KRemark/Refer to the Parts Guide
. Block/Item No. (Only the replacement parts are 
described.) Color supply 60
K120
K180
K240
K300
K360
K
1 Drum (BK) Monochrome...

MX-2300/2700 N/G  MAINTENANCE  9 – 4 The PM cycle means the replacement timing of periodic replace-
ment consumable parts which are required for maintaining the per-
formance.
The PM cycle is specified only for B/W output. For color output, it is
used as a reference value.
[Reason] Since the ratio of B/W to color differs depending on the
users operation scene which varies every day, the PM cycle can-
not be specified in a certain cycle for color output.
Replacement of a PM item at the recommended life is...