Users Manual for T4000+ Series 24
7. Cleaning and basic maintenance
7.1. Cleaning information
DANGER!
Risk of death via electric shock!
► Disconnect the printer from the power supply before performing any maintenance work.
The label printer requires very little maintenance.
It is important to clean the thermal print head regularly. This guarantees a consistently good
printed image and plays a major part in preventing premature wear of the print head.
Otherwise, the maintenance is limited to monthly cleaning of the device.
ATTENTION!
The printer can be damaged by aggressive cleansers.
Do not use abrasive cleaners or solvents for cleaning the external surfaces or modules.
► Remove dust and paper fluff from the print area with a soft brush or vacuum cleaner.
► The cover of the printer can be cleaned with a standard cleanser.
7.2. Cleaning the Print Roller
Accumulations of dirt on the print roller may impair the media transport and the print quality.
► Lift the print head.
► Remove labels and transfer ribbon from the printer.
► Remove deposits with roller cleaner and a soft cloth.
► If the roller appears damaged, replace it Æ Service Manual.
7.3. Cleaning the print head
Cleaning intervals: direct thermal printing - every media roll change
thermal transfer printing - every ribbon roll change
Substances may accumulate on the print head during printing and adversely affect printing,
e.g. differences in contrast or vertical stripes.
ATTENTION!
Print head can be damaged!
Do not use sharp or hard objects to clean the print head.
Do not touch protective glass layer of the print head.
ATTENTION!
Risk of injury from the hot print head line.
Ensure that the print head has cooled down before starting cleaning.
► Lift the print head.
► Remove labels and transfer ribbon from the printer.
► Clean print head surface with special cleaning pen or a cotton swab dipped in pure
alcohol.
► Allow print head to dry for 2–3 minutes before commissioning the printer.
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