Deli 888T, User Manual

5  CLEANING THE PRINTER

Printing quality might be degraded by dust, foreign substance, adhesive 
substance, or other pollution materials stuck in the printer head or 
inside the printer.When dirty, clean the print head as follows

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 Caution

1)  Make sure to turn the printer power off prior to cleaning.
2) Turn the printer off and wait for 2 -3 minutes before cleaning the printhead 
because it gets very hot during the printing process.
3) When cleaning the print head, take care not to touch the heated portion 
of the print head to avoid any damage caused by static electricity or other 
factors. 4) Take care not to allow the print head to become scratched and/or 
damaged in any way.

5.1 Cleaning the print head

1) Open the top cover of the printer, and then use the cleaning pen or a 
cotton swab dipped in diluted alcohol (or isopropanol) to clean the print 
head in the direction from the center of the head to the edges.
2) After cleaning the head, do not use the printer until the alcohol used for 
cleaning evaporates completely (1~2 min) and the printer head has com-
pletely dried. 

5 .2Cleaning the sensor, roller and paper path

1) Open the top cover of the printer and take out the paper roller. 
2) Remove any dust or foreign materials using a dry cotton cloth or cotton 
swabs. 
3) Use an alcohol-soaked cotton cloth or cotton swabs to wipe off any adhe-
sive substance or pollution materials
4) After cleaning the parts, do not use the printer until the alcohol used for 
cleaning evaporates completely (1~2 min) and the printer has completely 
dried.

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 Please clean the parts in case the print quality deteriorates or paper 

detection performance decreases