Ricoh SP 8400DN Field Service Manual page 1410

7.Detailed Descriptions
Feed/ Transport part
Overview
No.
1 Pick-up roller (1st paper tray)
2 Feed roller (1st paper tray)
3 Friction roller (1st paper tray)
Feed / transport part
The paper feed tray consists of 2 stages, i.e., a main double tray and a bypass feed tray. By using both the 1st and
2nd tray as universal trays, a space-saving two-step feed is enabled.
Tray
1st/2nd paper tray
Bypass feed tray
Duplex unit
Tray bottom plate lifting
When the paper feed tray is set in the machine, the set switch at the rear of the tray switches ON, and it is detected
that the tray is set.
The coupling between the shaft at the rear of the tray and the lift motor then engages, the motor rotates, and the
tray bottom plate is lifted. The tray bottom plate lifts until the paper surface pushes up the pick-up roller, the upper
limit sensor switches OFF (interrupt), and the machine enters the paper feed standby mode.
When the tray is removed, the coupling is released, and the tray bottom plate moves down. The lift motor then
rotates until the coupling returns to the home position.
672
Description
Paper size
A3 - postcard 550 sheets
12 x 18 - postcard 100 sheets
A3 - postcard Interleave
No.
4 Feed roller (2nd paper tray)
5 Friction roller (2nd paper tray)
6 Pick-up roller (2nd paper tray)
Loading number of sheets
Description
Corresponding paper thickness
2
60 – 300 g/m
2
52 – 300 g/m
2
52 – 256 g/m