2
Print head has a certain life span, which is related to the working
environment and the quality of paper. The bad environment such as dusty
environment and the poor quality of paper will reduce the service life of the
print head. After a period of time of use, the print head requires the cleaning
and maintenance.
After the thermal print head is used for some time, the thermal element will
turn dirty, which will cause unclear printing effect. Just use the cotton cloth
dipped with alcohol to clean the thermal element.
The problem that the paper moves properly but the printer does not print
completely or partially may be caused by the poor contact between the print
head and the mainboard. Pull out the connecting cable and re-plug it, the
fault may be solved.
2.
Mainboard:
The mainboard is also one of the most important parts of the
printer and it is used to control all the actions of the printer, mainly composed
of the CPU control circuit, power circuit, motor control circuit, box circuit
and interface circuit.
When the printer is not typing, printing messy codes or the paper
abnormalities appear, it is possibly because the components on the
mainboard are broken. You can replace the failed mainboard with a good one
to judge whether it is the problem caused by the mainboard.
3.
Case holder:
The plastic parts and hardware used to install the mainboard
and print head so as to assemble all components into a complete printer.
The Case holder are not prone to be damaged, unless by violent transport,
falls, collisions. Once damaged, please replace with a new one.
4.
Power supply:
Change the AC into DC so as to provide a stable DC power
supply for the printer.
Please check whether the power supply meets the requirements of the printer
before getting the printer powered on and try to use the original power supply.
If the power adapter’s light is not on after the power supply is provided, it
means the power supply is damaged and replace it.
