16. APPENDIX 5. BLOCK DIAGRAM

 

 

OSC 20MHz

FLASH

RAM

 

 

 

 

 

 

 

 

ROM

 

 

 

 

 

 

LED

 

 

 

 

 

FEED Switch

 

 

 

 

Print Head

Cover Switch

 

 

 

 

 

 

 

 

 

 

 

 

 

G/A

 

Cutter

Driver

 

 

 

 

 

 

CPU

DIP Switch

 

Paper Near-end

 

 

 

 

 

 

 

 

 

 

Paper End

 

 

 

Driver

Stepping

 

 

 

Motor

 

 

 

 

 

 

 

 

DC 5V DC 24V

Driver

Interface

Reset

 

Power

 

 

 

 

 

 

 

 

 

 

Source

 

Drawer1

Parallel

 

 

DC 24V 1.8A

 

 

 

 

Drawer2

Centronics compliant

 

 

 

 

IEEE1284 compliant

 

 

 

Serial

RS-232C compliant

—169

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Image 189
Citizen Systems iDP3240 user manual Appendix 5. Block Diagram, Rom Led