iDP3420/3421/3423 User’sMa nual
127 CITIZEN
APPENDIX 1. BLOCK DIAGRAM
Power Supply
120 V AC, 50/60 Hz
230 V AC, 50/60 Hz
Interface
OSC16MHz
POWER LED
ERROR LED
FEED Switch
Drawer
Parallel
(CENTRONICSBased)
Serial
(RS-232CBased)
DIP Switch
Driver
Reset
Driver
Driver
Filter Power
Supply
V
p
Vcc
Print
Head
Pa
p
er
End
DC
Moter
Printer
Mechanism
V
p
: For mecha nism drive
,
Fordrawerkick
Vcc:Forcircuit drive
ROM
RAM
CPU
AutoCutter
(iDP3421/3423 only)
Winder
(iDP3423 only)