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MX-CFX1  SELF DIAG MESSAGE AND TROUBLE CODE  10 – 2

Problem

The machine does not detect the paper.

Case1

Cause

JAM cover open/close switch fault 

Check and 
remedy

Check continuity between the switch 
contacts. Replace the switch if no conduction 
is measured. 

Case2

Cause

Reverse unit open/close sensor fault

Check and 
remedy

Measure a voltage of TP9 on the controller 
PCB and check that 1 V or less is observed 
when the reverse unit is open, and that 5 V is 
observed when the reverse unit is closed. 
Replace the sensor if the measured voltage 
exceeds these ranges.

Case3

Cause

Controller PCB fault

Check and 
remedy

If the problem is not solved by a change in 
the sensor level after the above cases 1 to 3 
are confirmed, replace the controller PCB.

Problem

Inserter unset is displayed on the system display.

Case1

Cause

Set sensor fault

Check and 
remedy

Measure a voltage of TP16 on the controller 
PCB and check that 5 V is observed when 
the inserter is set, and that 1 V or less is 
observed when the inserter is not set. 
Replace the sensor if the measured voltage 
exceeds these ranges.

Case2

Cause

Controller PCB fault

Check and 
remedy

If the problem is not solved by a change in 
the sensor level after the above case 1 is 
confirmed, replace the controller PCB.

Problem

The registration clutch does not perform.

Case1

Cause

Loose contact of the clutch connector 
terminal 

Check and 
remedy

Check continuity of the connector contacts. 
(CN4) 

Case2

Cause

Disconnection of the clutch coils 

Check and 
remedy

Inspect the coils for continuity. Replace the 
coils if no continuity is measured. 

Case3

Cause

Controller PCB fault 

Check and 
remedy

If the clutch does not perform in the clutch 
single operation mode, replace the controller 
PCB. 

MX-CFX1  SELF DIAG MESSAGE AND TROUBLE CODE  10 – 3

MX-CFX1  ELECTRICAL SECTION  11 – 1

MX-CFX1

Service Manual

 

Reverse sensor

Paper exit sensor

Reverse unit open/close sensor

Set sensor

Empty sensor

Resistration sensor

Timing sensor

Tray

Housing
Contact

Housing
Contact

Housing
Contact

Tray volume

Tray sensor

Operator panel

BE

BE

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BE

BE

BE

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BN

BN

BN

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BK

BK

BK

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BN

BN

BN

BK

BK

BK

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BE

SPI-337-01

TLP1241(C5,F)

TLP1241(C5,F)

TLP1241(C5,F)

TLP1241(C5,F)

TLP1241(C5,F)

TLP1241(C5,F)

PF3090K210

ASM-SNS-H

PF3090 PBA-CONT

PF3090K212

ASM-SNS-K

PF3092K213

ASM-SNS-TR92

PF3090K214

ASM-PANEL

PF3092K211

ASM-SNS-C-92

MX-CFX1  ELECTRICAL SECTION  11 – 2

Housing
Contact

Housing
Contact

Housing
Contact
Contact

Housing
Contact
Contact

Sleeve

FASTON Terminal

Housing
Contact

Housing
Contact

Housing
Contact

Housing
Contact

Housing
Contact

Paper feed motor

Reverse motor

Flapper solenoid

Resistration clutch

JAM cover open/close switch

Main Unit I/F

Finisher I/F

Horizontal

transport

motor

RD

BK

YW

BE

WE

OE

OE

BE

YW

RD

BK

WE

RD

BK

YW

BE

WE

OE

OE

WE

BE

RD

BK

YW

OE

WE

BE

RD

BK

YW

BN

SB

PK

VT

YW

RD

BK

WE

GY

BK

OE

BE

BN

RD

BK

YW

PK

BE

VT

BK

OE

BE

BE

BE

BE

BE

BE

BE

BE

BE

BK

BK

BE

YW

RD

BE

WE

BK

RD

YW

BE

OE

BE

BE

BE

BE

RD

GY

BN

SB

PK

VT

YW

BK

WE

RD

BN

YW

BK

PK

VT

RD

YW

BE

090 PBA-CONT

PF3090K219

ASM-SOL/CL

PF3092K217

ASM-I/F-92

PF3090K218

ASM-SW