SendDataToPrinter(str,4);//
deepen ‘
0X30’
Chapter 4:
Maintenance and Troubleshooting
To ensure the printer to work normally, particularly note that we don't optionally
remove the print head and do not make changes to the printer through ourself. For
users not using the printer shell, more particularly note protecting the printing
head.
1. If the printer is not used for a long time, we do not turn on the printer power.
2. If the printer is not working properly, please turn off the printer's power.
3. Power supply must meet the requirements, or it is unfavorable for the printing head,
and even damages the printing head.
4. When replacing the paper roll, please note whether there are the paper scraps and
dust on the printing head. If having paper scraps and dust, please gently remove.
Note the thermal paper's obverse and reverse side, and if the reverse side is uncoated,
the printer can‘t print out the handwriting.
5. When the printer is printing or paper feeding, we can't tear the paper, and can't more
reversely drag the paper
6. Keep the printer control panel clean
7. When thermal printer prints unclearly, we can use the clean cotton ball soaked some
alcohol to gently wipe the surface dirt on the print head chip heating element.
8. When we connect the printer to the host, we should connect the printer data cable,
and then power on the printer.
9. To choose a good quality paper when we select the paper for the thermal printer can
not only improve the printing quality, but also reduce the abrasion for thermal film.
Summary of Contents for RD-FH8C7
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