Feeding Part - Samsung ProXpress M337x Service Manual

2. Product Specifications

2.2.4.1. Feeding Part

It consists of a cassette, an MP tray for supplying different types of media (envelope, label, special paper) and parts
related to paper feed initialization.
1) Cassette
The paper trays consist of the Main trays, Optional trays (SCF), and one Multi-Purpose (MP) tray. The basic cassette is
located on front side of the machine and allows feeding of common paper. Paper size is set using the Size Guides in each
tray. Adjust the Paper length/width guides to match the paper size.
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2) Pick up / Reverse(Retard) roller
When pickup takes place, the pickup roller rotates to separate and transport the paper. The pickup roller rotates when the
pickup clutch is activated. The retard roller serve to make sure that a single sheet of paper is moved to the paper path, and the
paper is moved as far as the registration roller by the work of the feed roller. The following is a diagram of the pickup section :
3) Registration roller
It is used as an anti skew device, and to setup proper registration timing with that of the toned image on the drum. It also is
used for jam detection to ensure paper has left the paper tray.
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