Paper Feed/Conveying Section; Cassette Paper Feed Section - Kyocera FS-3040MFP Service Manual

2-1-1 Paper feed/conveying section

2-1 Mechanical Construction
Paper feed/conveying section consists of the paper feed unit that feeds paper from the cassette and the MP
tray paper feed unit that feeds paper from the MP tray, and the paper conveying section that conveys the fed
paper to the transfer/separation section.

(1) Cassette paper feed section

Paper cassette is the universal type that is applicable to various paper sizes by adjusting the side guides and
paper stopper and approximate 500 pages can be put in. Mechanism in the paper cassette consists of the bot-
tom plate that lifts the paper in order to let it touch the pickup roller and the retard roller that prevents papers
from multiple feeding. Paper that is drawn out by the rotation of pickup roller of the cassette paper feed sec-
tion is then sent in between the feed roller and the retard roller. Function of the built-in torque limiter in the
retard roller gives weak resistance force against the rotation. Normally, when only a page is drawn out by the
rotation of pickup roller, the paper is conveyed to the machine by the rotation of feed roller on its own. If the
pickup roller drew out two lapped pages someway, the upper paper is conveyed by the feed roller and the
lower paper stays due to the rotation resistant force of the retard roller because the friction force between
papers is smaller than the rotation resistance force of the retard roller and then the multiple paper feed can be
prevented.
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Figure 2-1-1 Cassette paper feed section
1. Pickup roller
2. Paper feed roller
3. Feed holder
4. Retard roller
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2
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8
5. Retard holder
6. Bottom plate
7. Retard guide
8. Cassette base
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2LW/2LX