Panasonic DP-1510P Service Manual page 351

6. Interlock Safety Circuit
This safety circuit turns OFF the +24 VDC and +5 VDC supply voltages when the Front Door Cover is
opened. When the Front Door Cover is opened, the microswitch(es) on the ILS PC Board are de-
actuated, turning OFF +24 VDC to the Printer Motor Drive Circuit, the HVPS, the Paper Feed Solenoid
Circuits, the Clutch Drive Circuit, and the Laser Driver Circuit on the Laser Unit.
Front
Door
Micro
Switch
Edition 2.0
LPC3 PCB
+24V
+24VD1
Q9
DC/DC
Converter
Open Door
Detection
Interlock Safety Circuit Block Diagram
+24VM
MA152A
1W 270
TA78M05F
1W 270
IN OUT
GND
1W 270
MGND
351
DP-1510P/1810P
Printer Motor
Paper Feed Clutch
Lift DC Motor
Bypass Paper
Feed Clutch
2nd Paper Feed
Module
HVPS
LSU (Motor)
L+5V
LSU (Laser)
/1810F/2010E
APR 2002