2HJ/2HK
2-1-1
2-1 Mechanical construction
2-1-1
Paper feed section
There is paper feed from the paper cassette which can load paper 500 and paper feed from the MP tray which can load
paper 100 in paper feed method of this printer.
The paper feed section is composed of paper cassette, paper feed unit, paper feed drive unit, MP tray and, MP tray feed
unit.
(1) Paper feeding from paper cassette
The paper cassette is fit underneath the paper feed unit. The paper stored in the paper cassette is lifted up so that it is
pressed against the pickup roller as the bottom plate in the paper cassette is raised by the lifter mechanism. The sheet at
top is rewound to the pick up roller and sent to the paper feed roller which forward the paper in the printer. In order to pre-
vent paper misfeed during feeding, the retard roller which is positioned face-to-face with the paper feed roller acts to pre-
vent feeding more than one sheet at a turn of the pick up roller. The paper cassette has an opening at the front side. This
opening is a loophole for the paper that is fed by the optional paper feeder or the duplexer which feeds paper into the
printer.
Figure 2-1-1Paper cassette
Figure 2-1-2
1.
Guide roller
2.
Paper guide
3.
Upper registration roller
4.
Lower registration roller
5.
Secondary transfer roller
6.
Feed base
7.
Registration sensor (actuator)
8.
Pickup roller
9.
Feed roller
10. Cassette base
11. Bottom plate
12. Feed pulley
13. Retard roller
Bottom plate
Retard roller
To
registration roller
Bottom springs
From
optional paper feeder
or duplexer
Feed pulley
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