TRAY 1/2 (7155/7165), TRAY 3/4 (7255/7272) PAPER FEED UNIT
2-J-1
2 UNIT EXPLANATION
TRAY 1/2 (7155/7165), TRAY 3/4 (7255/7272)
PAPER FEED UNIT
Caution: Tray 1/2 of 7155/7165 and tray 3/4 of 7255/7272 have the same shape and mechanism.
Therefore, the explanation for only tray 1 and 2 shall be given here.
[1] Composition
[2] Mechanisms
*1 Paper lift-up
a) Hoisting of up/down plate
Paper feed trays are driven by wires. When a
paper tray is loaded, the tray up drive motor/
1(M16)/2(M17) 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/1(PS2)/2(PS8) detects
the actuator of the roller that has been moved
up by paper, the tray up drive motor/1(M16)/
2 (M17) stops.
End stopper
Drive pulley (for wire C/D)
Tray up drive motor /1/2
(M16/17)
Feed roller
Paper feed roller
Double feed prevention roller
Side guide
Side guide
Drive pulley
(for wire A/B)
Paper size PS /2-1/2-2
(PS6/12)
Paper size VR /1/2
(VR1/2)
Paper size PS /1-1/1-2
(PS5/11)
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: Phtosensor + Actu-
ators (two)
1st paper feed
paper loop mech-
anism*3
Photosensor + Actuator
+ clutch
MODEL MANUAL REVISED EDITION DATE PAGE METHOD
SERVICE MANUAL Dec. 2003
7155/7165/7255/7272
2-J-1 ADDITION
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4
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