BTP-R990 User’s Manual
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5 Routine maintenance
Caution:
Before starting routine maintenance, confirm that the printer power is turned off.
Do not use solvents like gasoline or acetone.
When cleaning sensors, the printer should not be switched on until the pure alcohol has totally
evaporated.
It is recommended that the maintenance cycle should not be longer than one month.
5.1 Print head and roller cleaning
Steps for TPH and roller cleaning are as follows:
1) Turn off the printer and open the top cover;
2) If printing is just finished, please wait for the print head to cool down completely;
3) Wipe off dust and stains on the surface of the print head and roller with soft cotton cloth dipped with
pure alcohol (it should be wrung out);
4) Wait until the alcohol is completely evaporated, then close the top cover.
5.2 Mark sensor cleaning
If the printer does not identify the mark effectively, you should clean the mark sensor.
Steps for mark sensor cleaning are as follows:
1) Turn off the printer;
2) Pull the latch to open the back cover of the printer;
3) Wipe off dust and stains on the surface of the sensor with soft cotton cloth dipped with pure alcohol
(it should be wrung out);
4) Wait until the alcohol is completely evaporated, then close the back cover and finish sensor
cleaning.
5.3 Clear paper jam
1) Turn off the printer power, rotate the cover open lever, and the cutter sliding blade will release the
cutter cover during the top cover open(top cover and cutter cover are released at the same time);
2) Clear paper jam, close the top cover and cutter cover;
3) Turn on the printer power.
Caution:
Slowing open the top cover and cutter cover, and carefully check during the opening. Do not force
suddenly so as to avoid damaging the cutter sliding blade.
