Brother P-touch PRO DX PT-9200DX, Service Manual

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CONTENTS
CHAPTER II MECHANISMS
2.1 THEORY OF MECHANISM OPERATION .................................................................................... II-1
2.1.1 Printing Mechanism ........................................................................................................ II-1
2.1.2 Roller Holder Assy Setting and Retracting Mechanism ................................................... II-3
2.1.3 Regular Tape and Ribbon Feed Mechanism ................................................................... II-4
2.1.4 Tape Automatic Full Cutter Mechanism .......................................................................... II-6
2.1.5 Tape Automatic Half Cutter Mechanism ......................................................................... II-7
2.1.6 Forced Tape Eject Mechanism ....................................................................................... II-8
2.1.7 Cover Open Button (Cover Lock Button) ........................................................................ II-9
2.1.8 Cover Open (Cover Lock) Sensor................................................................................... II-9
2.2 DISASSEMBLY AND REASSEMBLY......................................................................................... II-10
2.2.1 Disassembly Procedures .............................................................................................. II-11
[1] Removing the Tape Cassette ................................................................................. II-11
[2] Removing the Cassette Cover................................................................................ II-11
[3] Disassembly of the Cassette Cover Components ................................................... II-12
[4] Removing the Lower Cover.................................................................................... II-13
[5] Removing the Bottom Cover and the Front Cover.................................................. II-14
[6] Removing the Power Supply PCB Assy.................................................................. II-16
[7] Removing the Main PCB Assy and the Mechanical Printing Unit ............................ II-18
[8] Disassembly of the Body Cover ............................................................................. II-20
[9] Removing the Eject Unit Assy, the Half Cutter Assy, the Half Spacer,
and the Cutter Assy................................................................................................ II-23
[10] Removing the Half Frame Assy.............................................................................. II-24
[11] Disassembly of the Mechanical Unit ....................................................................... II-26
[12] Disassembly of the Head/Roller Holder Unit ........................................................... II-28