Paper Empty Sensor; Second Paper Feed Unit(Option); Mechanism - Epson EPL-5700 Service Manual

EPL-5700

2.1.3.2 Paper Empty Sensor

Paper empty sensor(PE1) is mounted at the upper parts of the multi paper
feed tray and detects if there is any paper in the tray or not.
If there is a paper in the tray, actuator stands up and the sensor goes to
OFF condition. Also, if there is no paper, actuator falls into the hole of tray,
and the sensor goes to ON condition.
Rev. A

2.1.4 Second Paper Feed Unit(Option)

2.1.4.1 Mechanism

Since second paper feed unit does not have driven motor, the motive power
for feeding paper and carrying paper is transferred from the connecting gear
on the main motor. Paper feed method is the same as from multi paper feed
tray.
As separation method, separation pad method is used for multi paper feed
tray, but the separator claw is used for the second paper feed unit.
The separator claw is the method that uses elasticity between the separator
installed at the paper feed cassette and the paper. Only one paper is fed at
one time paper feed operation. Therefore, it is not good for the thick paper,
but it is good for thin paper. Paper feed solenoid(SL21) is controlled from
printer body side through the relay board of the second paper feed unit.
Paper Feed Roller
Connecting Gear
Paper
Paper Feed Solenoid
Figure 2-5. Second Paper Feed Unit Mechanism
Chapter2 Operating Principles
Relay Board
Paper Empty Sensor
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