ii
2.3 MAIN PCB................................................................................................................. II-8
2.3.1 Logic Components............................................................................................. II-9
[ 1 ] CPU ................................................................................................................ II-9
[ 2 ] EEPROM ........................................................................................................ II-9
2.3.2 Key, LED Circuit................................................................................................. II-9
2.3.3 Head and Motor Power Supply ON/OFF Circuit................................................ II-10
2.3.4 Full Cutter Motor Driver Circuit and Media Feed Motor Driver Circuit............... II-11
2.3.5 Media Type Detect Sensor Circuit, Media Position Detect Sensor Circuit
and Cover Open Sensor Circuit ........................................................................ II-12
2.3.6 Head Temperature Detect Circuit...................................................................... II-15
2.3.7 Cutter Home Position Detect Sensor Circuit ..................................................... II-15
2.3.8 Reset Circuit ...................................................................................................... II-16
2.3.9 USB Interface Circuit ......................................................................................... II-16
CHAPTER III DISASSEMBLY AND REASSEMBLY.......................................... III-1
3.1 SAFETY PRECAUTIONS ......................................................................................... III-1
3.2 TIGHTNING TORQUE LISTS................................................................................... III-2
3.3 LUBRICATION POINTS LIST................................................................................... III-3
3.4 DISASSEMBLY PROCEDURE................................................................................. III-5
[ 1 ] Removing the Top Cover and Thermal Tape ................................................. III-5
[ 2 ] Removing the Front Cover and Tray S........................................................... III-7
[ 3 ] Removing the Power Supply ASSY and Main PCB ASSY............................. III-8
[ 4 ] Removing the Sub ASSY Inlet........................................................................ III-12
[ 5 ] Removing the Media PCB ASSY.................................................................... III-13
[ 6 ] Removing the Side Cover L, R ....................................................................... III-14
[ 7 ] Removing the Panel Cover............................................................................. III-17
[ 8 ] Removing the Upper Cover ............................................................................ III-19
[ 9 ] Removing the Mecha ASSY ........................................................................... III-21
[ 10 ] Removing the Cutter Unit ASSY..................................................................... III-22
[ 11 ] Disassembly of the Mecha ASSY ................................................................... III-23
3.5 REASSEMBLING PROCEDURE.............................................................................. III-28
[ 1 ] Reassembling the Mecha ASSY .................................................................... III-28
[ 2 ] Installing the Cutter Unit ASSY....................................................................... III-34
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