Paper Feeding - Epson EPL-5500 Service Manual

EPL-5500 Service Manual

2.1.1.1 Paper Feeding

Paper can be fed into the printer from the paper feed tray (150 sheets) or from the manual feed slot
(1 sheet at a time). Installing an optional second paper feed unit (lower cassette, 250 sheets) adds
another feeding method. Paper fed by the paper take-up roller is transported to the transport roller,
pre-image transfer roller, and then exit roller. After this, the paper is fed out onto the print tray. The
starting position of an image is decided by the paper take-up sensor (PC1). A photo sensor is used
as the paper take-up sensor (PC1) and the paper exit sensor (PC3).
Paper Feeding Tray (Standard Tray)
When the paper take-up solenoid is energized, the main motor (M1) drive is transmitted to the
paper take-up roller via the paper take-up clutch (a one-way clutch) to rotate the paper take-up
roller one revolution. At the same time, the depression cam rotates and releases the paper lift-up
plate to feed the top (first) paper. The fixed separating pad is used for the paper separation system.
It prevents the second or later sheets from being fed together with the top paper.
Upper Fusing Roller
Lower
Fusing
Roller
PC Drum
Pre-Image Transfer
Roller
Paper Lift-Up Plate
Fixed Separating
Pad
Transport Roller
Paper Take-Up Sensor (PC1)
Figure 2-3. Paper Feeding from the Paper Feed Tray
Rev. B
Paper Exit Roller
Paper Exit Sensor
(PC3)
When SL1 is de-energized
Paper Take-Up
Roller
Depression
Cam
When SL1 is energized
Paper Take-
Up Clutch
Paper Take-Up
Solenoid (SL1)
Paper Lift-Up Plate
Operating Principles
Paper
2-3