Read Sharp MX-DE20 Service Manual online
MX-DE20 OPERATIONAL DESCRIPTIONS 5 – 4
Signal
name
Name
Function/Operation
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.
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.
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.
No.
Name
Function/Operation
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.
against double feed.
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