Composition; Mechanisms - Konica Minolta 7155 Service Manual

TRAY 3 PAPER FEED UNIT (7155/7165)

[1] Composition

Tray up drive motor/3
(M18)
Side guide
End stopper

[2] Mechanisms

Mechanism
Paper lift-up *1 Up: Driven by wires
Down: Falls down by its own
weight
Tray loading Front loading
Double feed pre- Torque limiter
vention
1st paper feed Paper feed roller
No paper detec- Photosensor + Actuator
tion
Paper size detec- Width: VR
tion *2 Length: Photosensor
(Universal) + Actuators (two)
1st paper feed Photosensor + Actuator
paper loop mech- + Magnetic clutch
anism*3
Drive pulley (for wire C/D)
Paper size PS/2-3
(PS18)
Method
2-K-1
TRAY 3 PAPER FEED UNIT (7155/7165)
Feed roller
Paper feed roller
Double feed prevention roller
Side guide
Paper size VR/3
(VR3)
Paper size PS/1-3
(PS17)
*1 Paper lift-up
a) Hoisting of up/down plate
Paper feed tray is driven by wires. When the
paper tray is loaded, the tray up drive motor 3
(M18) rotates to wind the wires around the
drive pulleys and consequently the up/down
plate in the tray moves up. When the tray
upper limit PS/3 (PS14) detects the actuator
of the roller that has been moved up by paper,
the tray up drive motor 3 (M18) stops.
Drive pulley
(for wire A/B)