Portable printer fuzzy reason? _ printing equipment

by:Xprinter     2020-07-19
Portable printer if appear blurred, black etc. What reason is caused? Problem a, print some words don't come out reason: the print head is dirty, layout is wrong. Methods: cleaning the print head, the layout to see if the printed word overlap together, recomposition. Question 2, print black line is not clear and appear when reason: the print head is dirty or the print head is broken needle methods: cleaning the print head, if not to replace the print head. Question 3, print the font clear, barcode is not clear why: bar code content is too much, the density is too small. Methods: shorten the barcode content or increasing density, for 200 dpi and 300 dpi machine, bar code density generally want to be in more than 7 mils to scaling factor to 2 or more than 2, the miniature printer to print out the barcode is clear.
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