Read Sharp MX-6500N / MX-7500N (serv.man27) Service Manual online
MX-7500N OPERATIONAL DESCRIPTIONS 13 – 14
Signal name
Name
Function/Operation
CPFM
Paper feed motor
Drives the paper feed section and the transport section.
T1LUD
Tandem tray 1 upper limit detector
Detects the upper limit position of the upper limit tandem tray 1.
T1LUM
Paper tray lift motor (Tandem tray 1)
Drives the lift of the paper tray.
T1PED
Tandem tray 1 paper empty detector
Detects presence of paper in tandem tray 1
T1PUC
Tandem tray 1 paper feed clutch
Controls ON/OFF of the paper feed roller in the tandem tray 1 paper feed section.
T1PUS
Paper pickup solenoid (Tandem tray 1)
Controls the paper pickup.
T1SPD
Tandem tray 1 paper remaining quantity detector
Detects the remaining paper quantity in tandem tray 1.
T2LUD
Tandem tray 2 upper limit detector
Detects the upper limit position of tandem tray 2.
T2LUM
Paper tray lift motor (Tandem tray 2)
Drives the lift of the paper tray.
T2PED
Tandem tray 2 paper empty detector
Detects paper presence in tandem tray 2.
T2PUC
Tandem tray 2 paper feed clutch
Controls ON/OFF of the paper feed roller in the tandem tray 1 paper feed section.
T2PUS
Paper pickup solenoid (Tandem tray 2)
Controls the paper pickup.
T2SPD
Tandem tray 1 paper remaining quantity detector
Detects the remaining paper quantity in tandem tray 2.
TNDSET
Tandem tray installation detector
Detects installation of tandem tray.
No.
Name
Function/Operation
1
Paper pickup roller (Tandem 1, 2 paper feed tray)
Picks up paper to send to the paper feed roller.
2
Paper feed roller (Tandem 1, 2 paper feed tray)
Feeds paper to the paper transport section.
3
Separation roller (Tandem 1, 2 paper feed tray)
Separates paper to prevent double-feeding.
4
Torque limiter
Applies a certain level of resistance power to rotation of the separation roller in order to
prevent against double feed.
prevent against double feed.
5
Lift wire
Transmits the drive power of the paper tray lift motor to the paper feed tray.
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