Hisense HM626R User Manual page 18

Printer
1. Printer paper roll
① Thermal paper roll requirements:
Thermal paper thickness: 0.055mm～0.085mm
Paper roll width: 57.5±0.5mm
Outer diameter of paper roll: ф50mm (maximum)
Inner diameter of paper roll: ф10mm (minimum)
② Recommended thermal paper roll model: PD160R (Oji Paper)
Note:
 Please use recommended paper rolls or paper rolls of equivalent quality. Using other types
of paper rolls may affect the printing effect and the life of the print head;
 If the paper roll is contaminated by chemicals or oil, the contaminated part of the paper
roll may fade or the printing effect is not clear;
 Do not use sharp objects to scratch the thermal layer of the paper, which may make the
printing effect unclear;
 When the temperature exceeds 70°C, the thermal layer of the paper will fade. Therefore,
the use or storage of paper rolls should avoid high temperature, high humidity, strong light,
etc;
 Do not use thermal paper that has been stored for too long.
2. Printer maintenance
①Print head cleaning
The print head should be cleaned when one of the following conditions occurs in the printing
unit:
 Printing is not clear;
 A certain vertical column of the printed page is not clear;
 Paper feeding and unloading are noisy.
The steps for cleaning the print head are as follows:
a.
Turn off the power of the printing unit, turn the opening wrench over, and pull out the
rubber roller;
b. If you have just finished printing, wait for the print head to cool down completely;
c. Use an alcohol cotton ball (should be wrung out) to wipe off the dust, stains and paper
scraps on the surface of the heating body of the printing hair;
d. After the alcohol has completely evaporated, close the printer cover.
②Printing rubber roller cleaning
When one of the following situations occurs in the printing unit, the printing rubber roller
should be cleaned:

Printing is not clear;
 A certain vertical column of the printed page is not clear;
 Paper feeding and unloading are noisy.
The cleaning steps of the printing rubber roller are as follows:
a.
Turn off the power of the printing unit, turn the opening wrench over, and pull out the
rubber roller;
b. If you have just finished printing, wait for the print head to cool down completely;
c. Use an alcohol cotton ball (should be wrung out) to wipe off the dust, stains and paper
scraps on the surface of the printing rubber roller;
d. After the alcohol has completely evaporated, close the printer cover.
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