II - 2
2.1.2 Tape & Ribbon Feed Mechanism
This mechanism consists of the tape feed motor (DC motor), gear train, and roller holder
ASSY.
■
Structure of Thermal Head
When you load a tape cassette and close the cassette cover, the tape feed roller inside
the cassette and the tape feed sub roller in the roller holder ASSY sandwich the tape
(the laminate tape or adhesive tape when using laminated tape cassettes) inbetween,
as described in Subsection 2.1.1.
As the tape feed motor rotates, the encode gear rotates together. (The rotation of the
encode gear is controlled by the photo interrpter ASSY.)
Then, the rotation is transmitted to the tape idle gear (which rotates the tape feed sub
roller gear) and platen idle gear (which rotates the tape feed platen gear) through the
gear train, so that the tape and ink ribbon to be sandwiched inbetween are fed forwards.
(The laminate tape, adhesive tape and ink ribbon to be sandwiched inbetween are fed
when using laminated tape cassettes.)
The feed amount of the platen is slightly less than that of the tape feed sub roller.
Figure 2.1-2 Tape Feeding Mechanism
Photo interrupter ASSY
Tape feed motor
(DC motor)
Encode gear
Chassis ASSY
Platen idle gear
Tape idle gear
Roller holder ASSY
Platen roller
(Tape feed)
sub roller gear
Tape feed roller
Adhesive tape
Head ASSY
Transparent
laminate tape
Summary of Contents for P-Touch PT-2730
Page 1: ...P touch SERVICE MANUAL MODEL PT 2730 ...
Page 7: ...I 3 Figure 1 1 2 Key Arrangement 1 PT 2730 USA ...
Page 8: ...I 4 Figure 1 1 3 Key Arrangement 2 PT 2730 UK ...
Page 9: ...I 5 Figure 1 1 4 Key Arrangement 3 PT 2730 DEU ...
Page 10: ...I 6 Figure 1 1 5 Key Arrangement 4 PT 2730 FRA ...
Page 78: ...III 58 Figure 3 3 27 Key Depressing Order ...
Page 84: ...III 64 3 4 Troubleshooting for the Test Mode 1 LCD Indication Check mode ...
Page 85: ...III 65 2 Cassette Sensor Switch Check mode ...
Page 86: ...III 66 ...
Page 87: ...III 67 3 Key Check mode ...
Page 88: ...III 68 4 Print Check mode 5 Cut Check mode ...
Page 89: ...III 69 ...
Page 90: ...III 70 6 Encode Reading Check mode ...
Page 93: ...IV 2 4 3 Troubleshooting Flows 1 Tape feeding failure ...
Page 94: ...IV 3 ...
Page 95: ...IV 4 2 Printing failure ...
Page 96: ...IV 5 ...
Page 97: ...IV 6 3 Powering failure Nothing appears on the LCD and the backlight does not light ...
Page 98: ...IV 7 ...
Page 99: ...IV 8 4 No key entry possible 5 Tape cutting failure ...
Page 100: ...IV 9 6 Interface port failure 7 LCD indication error or backlight error ...
Page 101: ...IV 10 8 Tape cassette type not identified ...
Page 102: ...A 1 APPENDIX 1 CIRCUIT DIAGRAMS Main PCB circuit diagram 1 2 ...
Page 103: ...A 2 Main PCB circuit diagram 2 2 ...
Page 104: ...A 3 Key PCB circuit diagram ...
Page 105: ...Sep 2010 SM PT037 ...