MX-DE21. Service Manual. - Sharp Copying Equipment Service Manual (repair manual). Page 3

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MX-DE21  EXTERNAL VIEW AND INTERNAL STRUCTURE  2 – 1
MX-DE21
Service Manual
 
[2] EXTERNAL VIEW AND INTERNAL STRUCTURE
1. Sensor, detector, switch 
Signal 
name
Name
Type
Function/operation
D1LUD
Paper feed tray 3 upper limit 
detector
Transmission type
This detector detects when the tray in paper feed tray 3 reaches its upper limit.
D1PED
Paper feed tray 3 paper  empty  
detector
Transmission type
This detector detects when there is paper in paper feed tray 3.
D1PPD1
Paper feed tray 3 paper pass 
sensor 1
Transmission type
This detector detects when paper is in the transport path for paper feed tray 3.
D1PPD2
Paper feed tray 3 paper pass 
sensor 2
Transmission type
This detector detects when paper is in the transport path for paper feed tray 3.
D1PQD
Paper feed tray 3 paper quantity 
detector
Transmission type
This detector detects the amount of paper remaining in paper feed tray 3.
D2LUD
Paper feed tray 4 upper limit 
detector
Transmission type
This detector detects when the tray in paper feed tray 4 reaches its upper limit.
D2PED
Paper feed tray 4 paper  empty  
detector
Transmission type
This detector detects when there is paper in paper feed tray 4.
D2PQD
Paper feed tray 4 paper quantity 
detector
Transmission type
This detector detects the amount of paper remaining in paper feed tray 4.
DCDT
Tandem tray installation detec-
tor
---
Detects installation of tandem tray.   
DPFD1
Paper feed tray 4 paper pass 
detector
Transmission type
This detector detects the amount of paper remaining in paper feed tray 4.
DSW-TD
Paper feed tray TD open/close 
detection detector
Transmission type
This detector detects when the right door is opened or closed.
$37 4$
$00$
$0&$
$0%$
$01$
$0%$
$,5$
$#$4
$,5$
$01$
$00$
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