Lexmark Optra W810 Service Manual page 303

4023-001
Symbol Name
PC2 Synchronizing Roller
Sensor
PC3 Paper Exit Sensor
PC4 1st Cassette Paper
Empty Sensor
PC5 1st Cassette Paper
Near Empty Sensor
PC6 1st Cassette Set
Sensor
- Double Feed Sensor Detects the possibility of double feeding on
PC22 2nd Cassette Paper
Empty Sensor
PC23 2nd Cassette Side
Door Detecting
Sensor
PC25 2nd Cassette Paper
Near Empty Sensor
S1 Power Switch
S2 Right Door Interlock
Switch
S3 Right Door Switch
S4 Toner Detection Plate
Read Switch
S5 1st Cassette Paper
Size Detect Switch
TH1 Fusing Roller
Thermistor
TH2 I/C Thermistor
TS1 Fusing Roller
Thermostat
TF1 Fusing Roller Heater
Lamp Fuse
Function
Detects the paper fed from the tray. Active:
"L".
Detects paper ejection from the printer.
Active: "L"
Detects paper empty condition of the 1st
paper cassette.
Detects paper near empty condition of the 1st
paper cassette.
Detects that the 1st paper cassette is
installed in the tray 1. Active: "H"
the 1st paper cassette. Active: "L" (Detects
whether the leading edge of the paper to be
taken up next runs 10 mm or more from the
nip point.) The sensor is on the double feed
sensor board (PWB-H)
Detects paper empty condition of the 2nd
paper cassette. Active: "L
Detects open/close condition of the 2nd
cassette side door. When it is opened, the
sensor output is "H".
Detects paper near empty condition of the
2nd paper cassette. Active: "L"
Turns power on and off.
Detects open/close condition of the right
door. When it is closed, the switch is ON.
Detects open/close condition of the right
door. When it is closed, the switch is ON.
Checks the toner level by detecting the
position of the toner detection plate.
Detects the paper width of the 1st paper
cassette.
Detects the temperature of the upper fusing
roller.
Detects the temperature of the imaging
cartridge.
Shuts off the application voltage to the fusing
roller heater lamp (H1) when temperature
becomes abnormal.
Blows own fuse immediately to shut off the
application voltage to the fusing roller heater
lamp (H1) when temperature rises
abnormally.
5-7
Locations