Interlock Safety Circuit - Panasonic DF-1100 Service Manual

Panasonic DF–1100

6.2.12 Interlock Safety Circuit

This safety circuit turns OFF the +24 VDC supply voltages when the Printer Cover is opened. When the
Printer Cover is opened, the microswitch(es) on the ILS PC Board are de–actuated, turning OFF +24 VDC
to the Printer Drive Circuit, the HVPS, and the Paper Feed Solenoid Circuits, turning OFF the +5 VDC supply
voltage for the Laser Driver Circuit on the Laser Unit.
+24V
LVPS
6–34
+24V
Rush Current
Protection Circuit
pMPOW
DC/DC
Converter
(LPC PCB)
Interlock Safety Circuit Block Diagram
+24V
Printer
Cover
ILS PCB
+24VD
+24VM
Printer Motor
+24VM
HVPS
+24VM
Paper Feed Solenoid
L+5V
LSU