Konica Minolta 7155 - Composition; Mechanisms

TRAY 3 PAPER FEED UNIT (7155/7165)
2-K-1
2 UNIT EXPLANATION
TRAY 3 PAPER FEED UNIT (7155/7165)
[1] Composition
[2] Mechanisms
*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.
End stopper
Drive pulley (for wire C/D)
Tray up drive motor/3
(M18)
Feed roller
Paper feed roller
Double feed prevention roller
Side guide
Side guide
Drive pulley
(for wire A/B)
Paper size PS/2-3
(PS18)
Paper size VR/3
(VR3)
Paper size PS/1-3
(PS17)
Mechanism Method
Paper lift-up *1 Up: Driven by wires
Down: Falls down by its own
weight
Tray loading Front loading
Double feed pre-
vention
Torque limiter
1st paper feed Paper feed roller
No paper detec-
tion
Photosensor + Actuator
Paper size detec-
tion *2
(Universal)
Width: VR
Length: Photosensor
+ Actuators (two)
1st paper feed
paper loop mech-
anism*3
Photosensor + Actuator
+ Magnetic clutch