1.4 Switches, Sensors, and Solenoids
• SW101, the LVPSA door switch, is mounted inside the LVPSA and
interrupts the fixing heater current and +24 Vdc motor current. (See
Section 1.9.)
• SW11 turns the ac power on and off.
Sensors:
The following sensors are designated and referred to in Figure 1–7 and on the
wiring diagrams in Section 1.8.
• TH1 is the thermistor in the fixing unit. (See Section 1.10.)
• PS11 is the EP-L and front door open sensor.
• PS13 is the paper pickup sensor, part of the feed roller assembly.
• PS12 is the paper exit sensor.
• PS501 is the tray paper out sensor.
• PS502 is the fixing unit door open sensor.
• PS901 is the cassette feeder paper out sensor.
Solenoids (SL):
The following solenoids are designated SL in Figure 1–7 and on the wiring
diagrams in Section 1.8.
• SL501 actuates the clutch that turns the tray pickup roller.
• SL901 actuates the clutch that turns the cassette pickup roller.
• SL902 actuates the clutch that turns the cassette feed roller.
1.5 Electronic Block Diagrams
Figure 1–8 shows the major electronic components that operate the DEClaser
1100 series printer.
1–14 Physical and Functional Description
