Table of Contents
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1. FEATURES..............................................................................................................
2. SPECIFICATION ....................................................................................................
3. MAC (Memory All Clear) OPERATION ..............................................................
4. DIAGNOSTIC OPERATION ................................................................................
4-1. How to start ..................................................................................................
4-2. Mode switch and PAD status display check ....................................................
4-3. Hard key code check ....................................................................................
4-4. Hard check function .....................................................................................
6. CIRCUIT EXPLANATION .....................................................................................
6-1. Power supply circuit ......................................................................................
6-2. CPU .............................................................................................................
6-3. Motor error detection circuit ..........................................................................
6-4. Mode key switch status read .........................................................................
6-5. RAM address / head drive signal switching circuit ............................................
6-6. Initilize IC (Reset IC) ......................................................................................
6-7. Printer error condition of CPU ........................................................................
7.TO OPEN THE UPPER CASE ............................................................................
8. PCB LAYOUT ........................................................................................................
9. CIRCUIT DIAGRAM ..............................................................................................
10. PARTS LIST ........................................................................................................
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