Checking Sensors - Epson EPL-5700 Service Manual

EPL-5700

3.2.3 Checking Sensors

Table below shows the easy way to check the various sensors in this printer.
Table 3-3. Sensor Check List
Sensor Measuring
Name Terminals
Paper Empty Connector
Sensor CN212/Pin1 and
Pin2
Paper Feed Connector
Sensor CN210/Pin1 and
Pin2
Paper Eject Connector
Sensor CN208/Pin2 and
Pin3
Interlock Power board
switch connector CN3
Thermister Connector
CN202/Pin1 and
Pin2
Paper empty Connector
sensor(in the CN211/Pin5 and
second paper Pin6
feed unit)
Cassette Connector
type sensor CN211/Pin7, Pin8
switch(in the and Pin9.
second paper
feed unit)
Rev. A
Signal Level Sensor
Condition
High Paper in
Low Paper out
High Paper out
Low Paper in
High Paper out
Low Paper in
--- On/Off by switch
operation.
Analog output
1.7M (20 C)
High Paper in
Low Paper out
Refer to Chapter2 "Second Paper
Feed Unit".
Chapter3 Troubleshooting
3-2