Chapter 5 Maintenance & Adjustment
Adhesives and coatings of the media can transfer to the printer parts over time along the media
path including the thermal print head and media sensor. This build-up can accumulate dust and
debris. Failure to clean the print head, media path, and media sensor could result in inadvertent
loss of labels, label jams and possible damage to the printer.
Note:
⚫ Make sure to turn off the printer prior to cleaning.
⚫ As the print head gets hot during printing, if intending to clean the print head, turn the printer
off and wait approximately 2~3 minute before commencement.
⚫ When cleaning the print head, take care not to touch the heated portion of the print head. Print
Head is susceptible to damage from static electricity, etc. So it is strongly recommended to wear
hand gloves during cleaning progress.
⚫ Take care not to allow the print head become scratched and/or damaged in any way.
5.1 Cleaning Media Sensor
Debris or dirt on the paper sensor can cause a miss-read or unstable detection of the label gap.
Clean with a cotton bud dampened with alcohol.
5.2 Cleaning Thermal Print Head
Thermal Paper stock on the print head, which degrades print quality. Clean the print head with
methanol or isopropyl alcohol and a cotton bud. Do not touch the heating elements with your
fingers.
1) Open the Printer Cover and then use the cleaning pen to clean the head in the direction from
the center of the head to two sides.
2) After cleaning the head, do not use the printer until the alcohol used for cleaning evaporates
completely (1~2 min) and the printer has completely dried.
3) Perform the cleaning process each time the paper roll is replaced to prevent print quality
deterioration.
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