TDP-643R PLUS BAR CODE PRINTER
SERVICE MANUAL
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4.5 Gap Sensor Transmitter/Receiver Replacement
1. Turn off printer power.
2. Remove power cord and RS-232 and/or parallel port cable.
3. Form the button of the printer, remove the 6 screws.
4. Detach the printer top cover and disconnect peel-off sensor connector from the
cover.
5. Loosen the 4 mechanism fixing screws on the mechanism mount.
6. Detach print head mechanism.
7. Loosen 1 screw on the gap sensor transmitter and 1screw on the gap sensor
receiver.
Fig. 4-9 Loosen gap sensor screws
8. Replace gap sensor.
9. Assemble the detach parts in the reverse order of the above.
Screw
Gap sensor transmitter
