Duplo DF-920 Maintenance Manual page 24

y Secure the set screw of the drive gear, and apply a
very small amount of thread locking to the set screw.
(Loctite 242: Medium strength)
DF-915
Adjust the paper feed tray stopping position so that the paper stacking amount satisfies the specifications, and the
position of the tray is detected accurately when the tray is raised/lowered manually.
q Move the roller unit of the hinge lever up and down and adjust so that when the paper feed tray up/down lever is
raised and the paper feed tray is lowered, the hinge lever touches the stopper, and the paper feed tray stops at a
depth of 45 ± 1 mm (1.77" ± 0.04") from the bent part of the lower paper feed inlet.
The paper stacking amount given in specifications is 500 sheets (approximately 44 mm (1.73")) for fine quality
paper 64 g/m 2 (16 lb).
w Move the switch angle and adjust so that when the
paper feed tray up/down lever is lowered and the
paper feed tray is raised, the actuator of the
microswitch turns ON the switch and a clearance of
0.5 to 0.7 mm (0.02" to 0.03") is formed at the position
shown in the figure.
e After completing the adjustment in w, check that the
R hinge of the actuator and the actuator press of the
paper feed tray up/down lever do not press the
actuator by continuous point contact and cause
damage.
The switch angle is provided with a stopper to prevent
damage of the switch by the damage of the actuator.
1-22
When the paper feed tray descends
12H-M12M0-0309-0
When the paper feed tray rises