Duplo DF-920 Maintenance Manual page 23

t After adjusting the paper stacking amount, raise and lower the paper feed tray from the control panel, and check the
following.
To raise the paper feed tray from the control panel, press the "+" key of the folding plate 1 folding stopper adjusting
key while pressing the stop key.
To lower the paper feed tray, press the "–" key of the folding plate 1 folding stopper adjusting key while pressing the
stop key.
The paper feed tray can also be raised and lowered using the maintenance mode "Code No.24: Paper feed tray up/
down motor test".
See See
"3. MAINTENANCE MODE" in CHAPTER 2 ELECTRICAL COMPONENTS
When the paper feed tray descends
The actuator of the lower limit detection
microswitch should not be pressing the switch
completely, and no load should be applied on Z at
the rack long hole upper edge from overrun of the
drive motor.
(When load is applied to Z, the slack of the
opposite tension idler side of the drive belt
changes.)
The paper feed tray stops at the specified position
of the paper stacking amount (approximately 44
mm (1.73")).
When the paper feed tray rises
When the paper feed pressure setting is "–1", the paper separator at the tip of the paper feed tray touches the
paper feed ring to maintain appropriate paper feed pressure.
The actuator of the upper limit detection microswitch must not be pressing the switch completely, and there
should be a clearance between the rack long hole lower edge and Z.
When the paper feed pressure setting is "6", there should be a clearance between the up/down lever and bearing
outer ring so that the paper feed pressure set is not affected.
When the paper feed tray rises
12H-M12M0-0309-0
When the paper feed tray descends
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