Samsung ML-651x series Service Manual page 30

2.2.5.1 Feeding Part
It is consists of a basic cassette, an MP tray for supplying different types of media (envelope, label, special
paper) and parts related to paper transferring.
1) Basic cassette
The paper trays consist of the Main trays, Optional trays (SCF,HCF), and one Multi-Purpose (MP) tray. The
MP tray is located on the front side of the machine and allows feeding of specialty media stock, envelopes,
and custom size paper.
Paper size is set using the Size Guides in each tray. Adjust the Paper length/width guides to match the paper
size.
2) Pick up / Forward / Retard roller
When pickup takes place, the pickup roller moves down to come into contact with the surface of the paper.
The pickup roller moves down when the pickup clutch is activated. The forward roller and 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 (cassette) or the forward roller (MP).
The following is a diagram of the MP pick up system :
Forward Roller
Service Manual
ML-551x / 651x series
2. Product specifi cations and descriptions
1 2
1
2
Retard Roller
2-19
Paper width guide
Paper length guide
Pick up Roller
Samsung Electronics