MX-M850 (serv.man16). Details of Each Section - E Tray Paper Feed Section - Sharp Copying Equipment Service Manual (repair manual). Page 4

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MX-M1100  TRAY PAPER FEED SECTION  E – 4
Signal name
Name
Type
Function  /  Operation
C3LUD
Cassette 3 upper limit detection
Transmission type
Detects lift up of the cassette 3.
C3LUM
Paper lift up motor (Tray 3)
DC brush motor
Drives the paper tray lift.
C3PED
Cassette 3 paper presence detection
Reflection type
Detects the cassette 3 paper presence.
C3PFC
Cassette 3 paper transport clutch
Electromagnetic clutch
Controls ON/OFF of the paper feed roller in the tray 3 paper 
feed section.
C3PFD
Cassette 3 paper presence detection
Reflection type
Detects the cassette 3 paper presence.
C3PUS
Cassette 3 paper pickup solenoid
Electromagnetic 
solenoid
Paper pickup solenoid (Tray 3)
C3SPD
Cassette 3 remaining quantity detection
Transmission type
Detects the cassette 3 remaining quantity.
C3SS1
Cassette 3 size detection 1
Tact switch
Detects the cassette 3 paper size.
Detects insertion of the cassette 3 by detecting one of 
cassette 3 size detection 1 to 4.
C3SS2
Cassette 3 size detection 2
Tact switch
C3SS3
Cassette 3 size detection 3
Tact switch
C3SS4
Cassette 3 size detection 4
Tact switch
C4LUD
Cassette 4 upper limit detection
Transmission type
Detects lift up of the cassette 4.
C4LUM
Paper lift up motor (Tray 4)
DC brush motor
Drives the paper tray lift.
C4PED
Cassette 4 paper presence detection
Reflection type
Detects the cassette 4 paper presence.
C4PFC
Cassette 4 paper transport clutch
Electromagnetic clutch
Controls ON/OFF of the paper feed roller in the tray 4 paper 
feed section.
C4PFD
Cassette 4 paper entry detection
Reflection type
Detects the cassette 4 paper pass.
C4PUS
Cassette 3 paper pickup solenoid
Electromagnetic 
solenoid
Paper pickup solenoid (Tray 3)
C4PWS
Cassette 4 width detection
Volume resistor
Detects the cassette 4 width.
C4SPD
Cassette 4 remaining quantity detection
Transmission type 
Detects the cassette 4 remaining quantity.
C4SS1
Cassette 4 size detection 1
Tact switch
Detects the cassette 4 paper size.
Detects insertion of the cassette 4 by detecting one of 
cassette 4 size detection 1 to 4.
C4SS2
Cassette 4 size detection 2
Tact switch
C4SS3
Cassette 4 size detection 3
Tact switch
C4SS4
Cassette 4 size detection 4
Tact switch
MM2
Paper feed motor 2
DC brushless motor
Drives the paper feed section 2. 
No.
Name
Function / Operation
1
Paper size detection plate
Changes its own position in conjunction with the paper size (length) adjustment lever. 
By this operation, the paper size detector detects the paper size.
2
Paper width guide R
Suppresses skew to the minimum by restricting the paper width.
3
Paper size detection rotation plate
Changes its own position in conjunction with the paper size (length) adjustment lever. 
By this operation, the paper size detection plate position is changed and the paper size detector 
detects the paper size.
4
Paper size (length) guide plate
Regulates the paper size (length).
5
Paper width guide L
By restricting the paper width, skew is restricted to the minimum.
6
Lift plate
Lifts the paper to maintain the paper feed position at the fixed position.
7
Paper pickup roller
Sends paper to the paper transport section.
8
Separation roller
Separate paper to prevent against double feed.
9
Paper feed roller
Feeds paper to the paper transport section.
10
Torque limiter
Provides a certain level of resistance power for the paper separation roller rotation to prevent 
against double feed.
11
Transport roller 3 (Drive)
Transports paper from the paper feed tray 3 to the transport roller 4.
12
Transport roller 1 (Drive)
Transports paper from the paper feed tray 4 to the transport roller 2.
13
Transport roller 4 (Drive)
Transport paper from the transport roller 2 and the transport roller 3 to the transport roller 5.
14
Transport roller 2 (Drive)
Transports paper from the transport roller 1 to the transport roller 2.
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