Table of Contents
Advertisement
TRAY 1/2 PAPER FEED UNIT
b) Lowering of up/down plate
When the paper feed tray is pulled out, the
guide lever shown below is disengaged from
the rail, thus releasing the coupling gear that
transmits the drive force of the up drive motor
1 (M19), 2 (M20) to the drive pulleys. Then,
the up/down plate falls down naturally by the
weight of papers.
Coupling gear
*2 1st paper feed
To keep a constant contact pressure on the
paper by the paper feed roller at the time of paper
pick-up, the weight of the paper feed roller itself
is used. The pick up solenoid 1 (SD8), 2 (SD9)
moves the paper feed swivel plate down so that
the paper feed roller mounted on the plate falls
down to touch the paper as well. Then, the paper
feed roller picks up a paper and feeds it toward
the paper conveyance unit. The first paper feed
solenoid moves the paper feed swivel plate down
only when paper is to be fed. Otherwise, it
releases contact.
Paper feed swivel plate
Feed roller
Feed roller
Up drive motor
1 (M19), 2 (M20)
Tray
insertion
direction
Guide lever
Pick up SD
1 (SD8), 2 (SD9)
2-J-2
*3
Paper size detection
Length: The rear guide of the tray moves, caus-
ing the paper size detection actuator to
move as well. As a result, the two paper
size detection PS1-1, 2-1 (PS32, PS33),
1-2, 2-2 (PS35, PS36) turn ON and/or
OFF. Thus, the paper size is automati-
cally determined according to the com-
bination of the ON/OFF states of these
PSs.
Width: The side guide of the tray moves, caus-
ing the side guide (front) rack gear of the
paper size detection arm to turn the gear
of the paper size detection VR1, 2.
Thus, the paper size is automatically
determined according to the change in
the resistance value of the VR.
Paper size detection
PS1-1, 2-1
(PS32, PS33)
1-2, 2-2
(PS35, PS36)
Side guide (front)
Actuator
Rack gear
Paper size
VR gear
Advertisement
Table of Contents
