The bar code printhead is the most fragile and fragile device in a bar code printer. It is a lossy product like a car and will eventually be damaged. However, continuous maintenance can extend the life of the bar code printhead.
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Pre-maintenance:
To get the best out of it, clean the printhead every time you use a roll of ribbon or a roll of thermal paper. Note that when cleaning the bar code printhead, remove the ring to prevent scratching the printhead and use a grounded metal strap or antistatic mat to prevent static damage to the printhead.
You can use a 70% alcohol swab to turn off the printer and turn on the printhead, brush a small amount of cotton on the mechanical part of the printer, or gently blow off the dust (eg, roller, paper/ribbon sensor, and printhead). Do not use any hard metal or abrasive tools (such as screwdrivers) to tamper with the print head contaminants.
Use an alcohol-based cotton swab to press it on the print head from the head, then rotate the roller and use it to wipe it while the cotton swab is dirty. Do not use it again.
Factors that cause premature printhead damage: scratches - Long-term movement of the label/ribbon through the printhead can wear the protective layer of the ceramic coating, exposing the printhead needle (dot) and eventually damaging it.
Ways to avoid scratches:
Clean the printhead frequently and use a high-quality smooth, back-coated film thermal transfer ribbon to reduce friction.
Minimize printhead pressure and print temperature.
Make sure the ribbon width is wider than the label to prevent the exposed printhead from being scratched by the label.
Ribbon problem:
The dirty-print head caused by the back layer of the ribbon is contaminated by thermal paper and thermal transfer ribbon and requires high temperature, high pressure, high speed and other high setting values. The accumulation of contaminants on the print head needle creates a heat transfer barrier that affects the quality of the printed image. The increase in contamination gradually reduces the print quality and looks dull or damages the print pins. Contaminants make it difficult to clean the wetted cotton swabs.
In order to avoid the dirt caused by the back layer of the ribbon, it is necessary to use a thermal transfer ribbon that has been protected by a back layer. This ribbon needs to refer to a non-adhesive ribbon, and has a static electricity and a more lubricating effect.
In addition:
Always do print head maintenance.
Use the protective printhead film to quickly and easily remove printhead debris.