Epson EPL-5800, Service Manual

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EPSON EPL-5800 Revision B
Operating Principles Operating Principles of Mechanism 46
2.1 Operating Principles of Mechanism
2.1.1 Paper Path
The following figure shows the major paper paths in the printer.
EPSON EPL-5800 has two paper feed methods as standard; multi paper feed tray (150
sheets) and manual feed (1 sheet). With the optional second paper feed unit (500 sheets),
EPSON EPL-5800 has three paper feed methods.
Paper once fed by the paper feed roller is carried through transfer roller
→
fusing roller
→
paper exit roller and ejected to paper eject tray.
Figure 2-1. Paper Path
2.1.2 Paper Feed Mechanism
Multi Paper Feed Tray
!
When the paper feed solenoid (SL1) is turned ON, the driving power from the
main motor (M1) is transmitted to the paper feed roller via the paper feed clutch
(one-way clutch), and the paper feed roller rotates.
!
At the same time, the push down cam rotates, and it lifts the tray lifting plate.
Paper on the tray is carried into the printer by the paper feed roller.
!
Separation pad method is used in order to separate each paper and prevent feeding
the second paper together.
!
Since there is no paper size sensor mechanism in the multi paper feed tray, the
printer detects the length of paper by the ON period of paper feed sensor (PS1),
and judges the paper size. So, if the paper has the same length, the printer judges
the paper as the same size even its width is different.
4121s020
Multi paper Feed Tray
Face-down Paper Eject
Print Head
Photoconductor
Development
Charging
Transfer
Fusing
Exposure
Paper Feed
Ejecting
Face-up Paper Eject
Second Paper Feed Cassette
(Option)
Paper Feed