Citizen CBM-270 Service Manual page 3

1. HANDLING AND MAINTENANCE OF PRINTER ..........................................................................4
2. SPECIFICATIONS .............................................................................................................................5
2.1 Basic Specifications ................................................................................................................................... 5
2.2 Paper Specifications (Recommended Paper)............................................................................................ 6
3. DISASSEMBLY AND REASSEMBLY ...............................................................................................7
3.1 Disassembly Procedure ............................................................................................................................. 7
3.2 Reassembly Procedure ............................................................................................................................ 12
4. TROUBLESHOOTING ....................................................................................................................13
4.1 Troubleshooting Procedure ..................................................................................................................... 13
4.2 Troubleshooting Guide ............................................................................................................................ 13
5. SERVICE PARTS LIST ....................................................................................................................19
5.1 Parts List for Mechanism ....................................................................................................................... 19
5.2 Disassemble Drawing.............................................................................................................................. 20
5.2.1 Drawing for Operation Panel Board .............................................................................................. 21
5.3 Parts List for Control Board ................................................................................................................... 22
5.4 Parts Layout Drawing............................................................................................................................. 24
5.4.1 Serial Interface (Parts side) ........................................................................................................... 24
5.4.2 Serial Interface (Solder side).......................................................................................................... 25
5.4.3 Parallel Interface (Parts side) ........................................................................................................ 26
5.4.4 Parallel Interface (Solder side)....................................................................................................... 27
6. DRAWING ........................................................................................................................................28
6.1 Block Diagram ......................................................................................................................................... 28
6.2 Circuit Diagram....................................................................................................................................... 29
6.2.1 Serial Interface (CBM270-RF) ....................................................................................................... 29
6.2.2 Parallel Interface (CBM270-PF) .................................................................................................... 30
7. OUTLINE DRAWING ......................................................................................................................31
C C C C O O O O N N N N T T T T E E E E N N N N T T T T S S S S
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CBM-270 Service Manual
CITIZEN