Citizen Systems iDP-3550 - Manual (Page 138)

APPENDIX 1. BLOCK DIAGRAM
(iDP-3551 only)
OSC16MHz
Power Supply
120 V AC, 50/60 Hz
230 V AC, 50/60 Hz
Interface
Parallel
(CENTRONICS
Compliant)
Serial
(RS-232C
Compliant)
Reset
Winder
Control
Battery
Back-up
(Option)
Winder
ROM
RAM
CPU
Cutter
Control Auto
Cutter
Drawer
Control
Drawer
DIP Switch
Paper Near
End
Control
Operation
Panel
Vp
Filter
Power
Supply
Vcc
Print Head
Driver
DC Motor/
LF Solenoid/
CC Solenoid/
Drivers
Mechanism
Control
Signals/
PE Signal
Printer
Mechanism
DP-654C
or
DP-657G