II - 3
■
Adhesive tape Feeding (only for laminated tape cassettes)
A laminated tape cassette contains both a transparent laminate tape roll and a separate
adhesive tape roll.
When a transparent laminate tape and an adhesive tape pass through the contact point
(between the tape feed roller and tape feed sub roller), they are then bonded together
into a single, printed tape. The ink printed on the transparent laminate tape is, therefore,
sealed up with the adhesive tape.
■
Ink Ribbon Feeding (except for stamp tape cassettes)
As the tape feed motor rotates, the ribbon drive cam located at the middle of the gear
train rotates counterclockwise. The ribbon take-up roll in the tape cassette, which is
engaged with the ribbon drive cam, also rotates to take up the ink ribbon.
To apply proper tension to the ink ribbon between the platen roller and the ribbon drive
cam, the feed amount of the ribbon drive cam is slightly greater than that of the tape
feed roller. The difference between the tape feed speeds at the platen roller and at the
ribbon drive cam is absorbed by the clutch spring which is integrated in the ribbon drive
cam and allows the cam to slip.
This way, the ink ribbon is kept proper tense, which enables the ribbon to clearly
separate from the tape at the stabilized angle after printing.
Figure 2.1-3 Ribbon Feeding Mechanism
Tape feed motor
(DC motor)
Chassis ASSY
Roller holder ASSY
Platen roller
(Tape feed)
sub roller gear
Tape feed roller
Head ASSY
Ribbon drive cam
Ribbon take-up roll
Содержание P-Touch PT-2730
Страница 1: ...P touch SERVICE MANUAL MODEL PT 2730 ...
Страница 7: ...I 3 Figure 1 1 2 Key Arrangement 1 PT 2730 USA ...
Страница 8: ...I 4 Figure 1 1 3 Key Arrangement 2 PT 2730 UK ...
Страница 9: ...I 5 Figure 1 1 4 Key Arrangement 3 PT 2730 DEU ...
Страница 10: ...I 6 Figure 1 1 5 Key Arrangement 4 PT 2730 FRA ...
Страница 78: ...III 58 Figure 3 3 27 Key Depressing Order ...
Страница 84: ...III 64 3 4 Troubleshooting for the Test Mode 1 LCD Indication Check mode ...
Страница 85: ...III 65 2 Cassette Sensor Switch Check mode ...
Страница 86: ...III 66 ...
Страница 87: ...III 67 3 Key Check mode ...
Страница 88: ...III 68 4 Print Check mode 5 Cut Check mode ...
Страница 89: ...III 69 ...
Страница 90: ...III 70 6 Encode Reading Check mode ...
Страница 93: ...IV 2 4 3 Troubleshooting Flows 1 Tape feeding failure ...
Страница 94: ...IV 3 ...
Страница 95: ...IV 4 2 Printing failure ...
Страница 96: ...IV 5 ...
Страница 97: ...IV 6 3 Powering failure Nothing appears on the LCD and the backlight does not light ...
Страница 98: ...IV 7 ...
Страница 99: ...IV 8 4 No key entry possible 5 Tape cutting failure ...
Страница 100: ...IV 9 6 Interface port failure 7 LCD indication error or backlight error ...
Страница 101: ...IV 10 8 Tape cassette type not identified ...
Страница 102: ...A 1 APPENDIX 1 CIRCUIT DIAGRAMS Main PCB circuit diagram 1 2 ...
Страница 103: ...A 2 Main PCB circuit diagram 2 2 ...
Страница 104: ...A 3 Key PCB circuit diagram ...
Страница 105: ...Sep 2010 SM PT037 ...