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MX-M1100  DSPF SECTION  C – 25

7)

Remove the spring (a) and the screw (b), and remove the plate
(c).

8)

Remove the screw (a), and remove the DSPF scan transport
motor (b).

1)

Remove the rear cabinet.

2)

Disconnect the connector (a) and the screw (b), and remove
the stay (c).

3)

Loosen the screw (a). Slide the DSPF resist motor (b) and the
DSPF transport motor (c) to reduce the tension of the belt (d).
Tighten the screw (a).
* Before installing the resist transport drive unit, perform this

procedure. After installing the paper feed scan transport
drive unit, set the spring in the compressed state to apply a
tension to the belt. 

4)

Remove the screw (a), and remove the resist transport drive
unit (b).

5)

Remove the screw (a), and remove the DSPF resist motor (b)
and the DSPF transport motor (c).

a

b

c

a

b

a

a

b

c

a

a

a

a

a

b

c

d

d

a

b

a

b

c

MX-M1100  DSPF SECTION  C – 26

1)

Remove the rear cabinet.

2)

Remove the spring (a). Remove the screw (b), and remove the
PS drive unit (c).
* When installing, temporarily tighten the screw (b) in loos-

ened state and install the spring (a). Then apply a tension to
the belt (c) and tighten the screw (b) securely.

3)

Remove the screw (a), and remove the DSPF PS motor (b).

1)

Remove the screw (a), and remove the cover (b).

2)

Push the lock (a), and remove the DSPF-Flash PWB (b).

3)

Remove the rear cabinet.

4)

Remove the screw (a) at the bottom of the DSPF unit.

A

DSPF-Flash PWB

C - 26/ (1)

B

DSPF cnt PWB

C

DSPF Driver PWB

D

DSPF motor cooling fan 1

E

DSPF open/close sensor

C - 27/ (2)

F

DSPF lower door open/close sensor

b

c

a

d

a

b

F

E

D

A

C

B

a

b

a

b

a

MX-M1100  DSPF SECTION  C – 27

5)

Disconnect the connector (a), and remove the screw (b). 
Pull out the DSPF cnt PWB unit (c).

6)

Remove the screw (a), and remove the DSPF cnt PWB (b).

7)

Disconnect the connector (a), and remove the screw (b). 
Remove the DSPF Driver PWB (c).

8)

Disconnect the connector (a), and remove the screw (b). 
Remove the DSPF motor cooling fan 1 (c).

1)

Remove the front cabinet.

2)

Disconnect the connector (a), and remove the screw (b). 
Remove the holder (c). Remove the DSPF open/close sensor
(d).

3)

Disconnect the connector (a), and remove the screw (b). 
Remove the holder (c). Remove the DSPF lower door open/
close sensor (d).

b

b

c

a

a

a

a

a

a

a

b

b

b

c

b

a

a

a

a

c

b

b

a

b

c

d

a

b

c

d

MX-M1100  DSPF SECTION  C – 27

5)

Disconnect the connector (a), and remove the screw (b). 
Pull out the DSPF cnt PWB unit (c).

6)

Remove the screw (a), and remove the DSPF cnt PWB (b).

7)

Disconnect the connector (a), and remove the screw (b). 
Remove the DSPF Driver PWB (c).

8)

Disconnect the connector (a), and remove the screw (b). 
Remove the DSPF motor cooling fan 1 (c).

1)

Remove the front cabinet.

2)

Disconnect the connector (a), and remove the screw (b). 
Remove the holder (c). Remove the DSPF open/close sensor
(d).

3)

Disconnect the connector (a), and remove the screw (b). 
Remove the holder (c). Remove the DSPF lower door open/
close sensor (d).

b

b

c

a

a

a

a

a

a

a

b

b

b

c

b

a

a

a

a

c

b

b

a

b

c

d

a

b

c

d