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MX-1800N  TRAY PAPER FEED SECTION  E – 5

b. Paper feed roller
1) Remove the tray 1 and 2.
2) Remove the paper guide.

3) Remove the paper pickup roller (a) and the paper feed roller

(b).

c. Separation roller
1) Remove the tray 1 and 2.
2) Remove the paper guide.
3) Remove the separation roller.

d. Tray 1 transport cover opening detection
1)

Remove the tray paper feed unit 1.

e. Transport roller 7 (Drive)
1)

Remove the tray paper feed unit 1.

2)

Remove the screws.

3)

Remove the paper feed reverse PG unit, and remove the belt.

4)

Remove the grounding plate. Remove the parts. Remove the
transport roller 7 (drive).

a

b

MX-1800N  TRAY PAPER FEED SECTION  E – 6

f. Transport roller 4 (Drive)
1) Remove the tray paper feed unit 2.
2) Remove the grounding plate. Remove the parts. Remove the

transport roller 4 (drive).

g. Torque limiter
1) Remove the paper feed unit 1, 2.
2) Remove the E-ring and the bearing, and remove the paper

feed lower PG unit.

3) Remove the pressure release spring, and remove the paper

feed lower PG supporting plate. Remove the separation pres-
sure spring, and the separation pressure release plate.

4)

Remove the separation roller. Remove the E-ring and the sep-
aration shift. Remove the torque limiter.

i. Tray 1, 2 upper limit detection sensor
1)

Remove the paper feed unit 1, 2.

2)

Remove the paper feed reverse PG unit. (Tray paper feed unit
1 only)

3)

Remove the paper feed vertical transport PG unit, then remove
the belt. (Tray paper feed unit 2 only)

4)

Remove the paper feed upper PG supporting plate.

5)

Remove the tray 1, 2 paper presence detector (a) and the tray
1, 2 upper limit detector (b).

a

b

MX-1800N  TRAY PAPER FEED SECTION  E – 7

j. Tray 1, 2 transport detection
1) Remove the paper feed unit 1, 2.
2) Remove the paper feed reverse PG unit. (Tray paper feed unit

1 only)

3) Remove the paper feed vertical transport PG unit. (Tray paper

feed unit 2 only)

4) Remove the paper feed upper PG supporting plate.
5) Remove the tray 1, 2 transport detector.

k. Transport roller 5 (Drive)
1) Remove the tray paper feed unit 1.
2) Remove the paper feed reverse PG unit.
3) Remove the paper feed upper PG supporting plate.
4) Remove the parts, and remove the transport roller 5 (Drive).

Remove the E-ring and the bearing holder from the transport
roller 5 (Drive).

a. Tray 1, 2 paper remaining quantity detection
1) Remove the tray 1 and 2.

2)

Remove the connector and the screws, then remove the tray
1, 2 paper remaining quantity detector.

b. Tray 1, 2 presence detection
1)

Remove the tray 1 and 2.

2)

Remove the connector and the screws, then remove the tray
1, 2 presence detector.

3)

Release the pawl, and remove the tray 1, 2 detection unit.
Remove the spring from the tray 1, 2 presence detector.

MX-1800N  TRAY PAPER FEED SECTION  E – 7

j. Tray 1, 2 transport detection
1) Remove the paper feed unit 1, 2.
2) Remove the paper feed reverse PG unit. (Tray paper feed unit

1 only)

3) Remove the paper feed vertical transport PG unit. (Tray paper

feed unit 2 only)

4) Remove the paper feed upper PG supporting plate.
5) Remove the tray 1, 2 transport detector.

k. Transport roller 5 (Drive)
1) Remove the tray paper feed unit 1.
2) Remove the paper feed reverse PG unit.
3) Remove the paper feed upper PG supporting plate.
4) Remove the parts, and remove the transport roller 5 (Drive).

Remove the E-ring and the bearing holder from the transport
roller 5 (Drive).

a. Tray 1, 2 paper remaining quantity detection
1) Remove the tray 1 and 2.

2)

Remove the connector and the screws, then remove the tray
1, 2 paper remaining quantity detector.

b. Tray 1, 2 presence detection
1)

Remove the tray 1 and 2.

2)

Remove the connector and the screws, then remove the tray
1, 2 presence detector.

3)

Release the pawl, and remove the tray 1, 2 detection unit.
Remove the spring from the tray 1, 2 presence detector.