Brother P-touch QL-710W - Brother P-touch Specifications; Brother P-touch Theory of Operation; Brother P-touch Disassembly and Reassembly

CONTENTS
CHAPTER I SPECIFICATIONS
1.1 MECHANICAL SPECIFICATIONS.......................................................................................I-1
1.1.1 External Appearance ...........................................................................................................I-1
1.1.2 Control Button and LED .....................................................................................................I-1
1.1.3 Display.................................................................................................................................I-2
1.1.4 Printing Mechanism.............................................................................................................I-2
1.1.5 Thermal Tape.......................................................................................................................I-3
1.1.6 Cutter...................................................................................................................................I-4
1.1.7 PC Interface.........................................................................................................................I-4
1.2 ELECTRONICS SPECIFICATIONS ......................................................................................I-4
1.2.1 Character Generator.............................................................................................................I-4
1.2.2 Power Supply.......................................................................................................................I-4
CHAPTER II THEORY OF OPERATION
2.1 OUTLINE OF MECHANISMS ............................................................................................. II-1
2.1.1 Print Mechanism................................................................................................................ II-1
2.1.2 Press Contact and Release Mechanism of Thermal Head................................................. II-2
2.1.3 Tape Feed Mechanism....................................................................................................... II-3
2.1.4 Automatic Tape Full Cutter Mechanism........................................................................... II-4
2.1.5 Cover Open (Cover Lock) Sensor (Push Switch).............................................................. II-5
2.2 OUTLINE OF CONTROL ELECTRONICS......................................................................... II-6
2.2.1 Main PCB ASSY............................................................................................................... II-7
2.2.2 Media Type Detect Switch PCB (Media PCB ASSY)...................................................... II-7
2.2.3 Media Position Detect Sensor PCB (Tape Sensor PCB ASSY)........................................ II-7
2.2.4 Button, LED PCB (SB PCB ASSY).................................................................................. II-8
2.2.5 Cutter Sensor (Cutter Home Position Detect Sensor) ....................................................... II-8
2.2.6 Media Feed Motor (Tape Feed Motor ASSY) .................................................................. II-8
2.2.7 Full Cutter Motor (Cutter Motor ASSY)........................................................................... II-8
2.2.8 Thermal Head.................................................................................................................... II-8
2.2.9 Wi-Fi PCB ASSY.............................................................................................................. II-8
2.3 MAIN PCB............................................................................................................................. II-9
2.3.1 Media Type Detect Sensor Circuit,
Media Position Detect Sensor Circuit and Cover Open Sensor Circuit.......................... II-10
CHAPTER III DISASSEMBLY AND REASSEMBLY
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 Thermal Tape and the Top Cover ASSY................................................III-5
[2] Removing the Panel Cover.............................................................................................III-8
[3] Disassembling the Upper Cover and the Under Cover ................................................III-11
[4] Removing the PCB WYSAGBUX7-1 05.....................................................................III-14