Paper Jam Sensor; Overview; Paper Jam Sensor Conditions; Resetting The Paper Jam - Epson EPL-5700 Service Manual

EPL-5700

3.3.2 Paper Jam Sensor

3.3.2.1 Overview

This sensor checks if there is any paper in the printer or not by detecting the
conditions of signals from paper feed sensor and paper eject sensor.
The paper jam sensor during the paper passing in the printer monitors
condition by detecting rise and fall of paper feed sensor signal and paper
eject sensor signal. All the operation is turned off when the paper jam is
detected(except for continuous printing and single printing).
Continuous Printing
The paper jam is detected if the paper feed sensor is not turned On
within 2.8 seconds after the paper feed starting(in other words, the paper
feed roller starts rotating by turning on the paper feed solenoid) from
multi-paper feed tray or second paper feed unit. If there is any
transporting paper in the printer, all driving is turned off after the all
papers in the printer are ejected.
Single Printing
The paper jam is detected if the paper feed sensor is not turned On
within 2.8 seconds after the paper feed starting(in other words, the paper
feed roller starts rotating by turning on the paper feed solenoid) from
multi-paper feed tray or second paper feed unit. If there is no paper in
the fusing mechanism, the heater light is not turned off but other driving
is turned off.
Rev. A

3.3.2.2 Paper Jam Sensor Conditions

The paper feed sensor is not turned On within 2.8 seconds after the
paper feed starting(in other words, the paper feed roller starts rotating by
turning on the paper feed solenoid) from multi-paper feed tray or second
paper feed unit.
The paper eject sensor is not turned Off within 8.2 seconds after the
paper's heading tip reaches the paper feed sensor(in other words, the
paper feed sensor is turned on).
The paper eject sensor is not turned on within 2.84 3.79 seconds after
the paper's heading tip reaches the paper feed sensor(in other words,
the paper feed sensor is turned on).
The paper eject sensor is not turned Off within 2.6 3.63 seconds after
the paper's ending tip passes the paper feed sensor(in other words, the
paper feed sensor is turned off).
When the power switch is On, or upper cover is closed, the paper feed
sensor is On.
When the power switch is On, or the upper cover is closed, the paper
eject sensor is On.

3.3.2.3 Resetting the Paper Jam

After the paper jam is cleared, the error is canceled by closing the upper
cover.
Chapter3 Troubleshooting
3-9