237 Maintenance7.1 Cleaning InstructionsDanger!Risk of death via electric shock! Disconnect the printer from the power supply before performingany maintenance work.It is important to clean the thermal printhead regularly. This guarantees aconsistently good printed image and reduces wear of the printhead.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 theexternal surfaces or modules. Remove dust and paper fluff from the print area with a soft brush orvacuum cleaner. The cover of the printer can be cleaned with a standard cleanser.7.2 Cleaning the PrintheadCleaning intervals:direct thermal printing - every media roll changethermal transfer printing - every ribbon roll changeSubstances may accumulate on the printhead during printing and adverselyaffect printing.! Attention!Printhead can be damaged! Do not use sharp or hard objects to clean the printhead. Do not touch protective glass layer of the printhead.! Attention!Risk of injury from the hot printhead line. Ensure that the printhead has cooled down before startingcleaning.