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MX-DE20  OPERATIONAL DESCRIPTIONS  5 – 1

MX-DE20

Service Manual

 

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Main Unit

MX-DE20  OPERATIONAL DESCRIPTIONS  5 – 2

CLUD2

Paper feed tray 2 upper limit 
detector

This detector detects when the tray in paper feed tray 2 reaches its upper limit.

CLUM2

Paper feed tray 2 lift-up motor

This motor lifts up the tray in paper feed tray 2.

CPED2

Paper feed tray 2 paper empty  
detector

This detector detects when there is paper in paper feed tray 2.

CPFC2

Paper feed tray 2 transport clutch

This clutch controls the ON/OFF status of the  transport roller 1.

CPFD2

Paper feed tray 2 paper transport  
detector

This detector detects when paper is in the transport path for paper feed tray 2.

CPUC2

Paper feed tray 2 paper feed clutch

This clutch controls the ON/OFF status of the paper feed roller (paper feed tray 2).

CSPD2

Paper feed tray 2 paper level 
detector

This detector detects the amount of paper remaining in paper feed tray 2.

CSS21

Paper feed tray 2 paper rear edge 
detector 1

The paper feeder recognizes that the tray for paper feed tray 2 has been inserted when any of paper feed 
tray 2 paper rear edge detector 1 to 4 turns ON.
This detector detects the paper size of the tray in paper feed tray 2.

CSS22

Paper feed tray 2 paper rear edge 
detector 2

CSS23

Paper feed tray 2 paper rear edge 
detector 3

CSS24

Paper feed tray 2 paper rear edge 
detector 4

CSS2SET

Paper feed tray 2 attachment 
detection detector

This detector detects when paper feed tray 2 is attached.

DSW-C2

Paper feed tray 2 open/close 
detection detector

This detector detects when the right door is opened or closed.

1

Paper pickup roller (Paper feed tray 2)

Feeds paper to the paper feed roller.

2

Paper feed roller (Paper feed tray 2)

Feeds paper to the paper transport section.

3

Transport roller 1 (Drive)

Transports paper from the paper feed roller to the main unit.

4

Idle roller

Transports paper from the transport roller 1 to the main unit.

5

Transport roller 1 (Idle)

Applies a pressure to paper and the transport roller to provide a transport power of the transport roller to 
paper.

6

Separation roller (Paper feed tray 2)

Separates paper to prevent double feed.

MX-DE20  OPERATIONAL DESCRIPTIONS  5 – 3

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MX-DE20  OPERATIONAL DESCRIPTIONS  5 – 4

DCDT

Tandem tray installation detector

Detects installation of tandem tray.   

D2PQD

Tray 4 remaining quantity detector

Detects the remaining paper quantity in tray 4.

D1PQD

Tray 3 remaining quantity detector

Detects the remaining paper quantity in tray 3.

D2LUD

Tray 4 upper edge detector 1

Either of upper edge 1 - 4 of tray 4 is detected to detect tray insertion.
The paper size of tray 4 is detected.

D1LUD

Tray 3 upper edge detector 1

Either of upper edge 1 - 4 of tray 3 is detected to detect tray insertion.
The paper size of tray 3 is detected.

D2LM

Paper tray lift motor (Tray 4)

Drives the lift of the paper tray.

D1LM

Paper tray lift motor (Tray 3)

Drives the lift of the paper tray.

D2PED

Tray 4 paper empty detector

Detects paper presence in tray 4.

D1PED

Tray 3 paper empty detector

Detects paper presence in tray 3.

DPFM

Desk feed motor

Drives the paper feed section.

D2PFC

Tray 4 paper feed clutch

Controls ON/OFF of the paper feed roller in the tray 4 paper feed section.

D1PFC

Tray 3 paper feed clutch

Controls ON/OFF of the paper feed roller in the tray 3 paper feed section.

1

Paper pickup roller (Paper feed tray 3)

Picks up paper to send to the paper feed roller.

2

Paper feed roller (Paper feed tray 3)

Feeds paper to the paper transport section.

3

Separation roller (Paper feed tray 3)

Separates paper to prevent double-feeding.

4

Paper pickup roller (Paper feed tray 4)

Picks up paper to send to the paper feed roller.

5

Paper feed roller (Paper feed tray 4)

Feeds paper to the paper transport section.

6

Separation roller (Paper feed tray 4)

Separates paper to prevent double-feeding.

7

Torque limiter

Applies a certain level of resistance power to rotation of the separation roller in order to prevent 
against double feed.