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3.6 Replacing the Print Head Assembly
1. Refer to section 3.2 to section 3.5 to remove key control board, Bluetooth control board
(option), the media holder assembly, and main board assembly.
2. Use the needle-nose pliers to remove two spring torsions on each side.
3. Take the gear holder and the gear, and push the print head holder on the each side to
remove the print head assembly.
4. Reassemble the parts in the reverse procedures.
Gear holder
Gear
Summary of Contents for Alpha-3R
Page 1: ...i SERVICE MANUAL Alpha 3R Direct Thermal Portable Printer ...
Page 4: ...3 Interior View 1 Print head 2 Black mark sensor 3 Media holder 4 Platen 1 2 4 3 ...
Page 5: ...2 Rear View 1 Li ion battery 2 Battery open clasp 3 USB interface 4 Power jack 3 2 4 1 ...
Page 8: ...5 8 TPH connector 9 Paper sensor Pin Description 1 3 3V 2 BM_E 3 BM_R 4 3 3V ...
Page 9: ...6 Main board bottom Connector Description 1 Battery connector 1 ...
Page 11: ...8 3 Use a needle to remove the iron bar 4 Reassemble the parts in the reverse procedures ...
