Re: Z4M is printing fine white lines in the barcode
As the label comes out of the printer...it sounds like your printing in picket fence mode (vertical bars). You most likely have 1 or more pixels out on the printhead...try cleaning first...if that fails... you will have to replace the printhead.
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Hi, if is the vertical line, its the print head that need to be replaced, try to clean the print head and try this to confirm: turn printer off, press PAUSE button and at the same time, power on, don't release the button, please wait until printer LCD screen come on, then release button. It will print the PAUSE test and after few 3-4 prints, u can turn off and on again otherwise printer not ready to print your labels until u restart it. (pause test stops after 10-15 labels). this pause print just show how the print head is and if come with vertical lines, u will need to replace. other idea is (if u can) turn the bar code different position or on vertical way at label format. Thanks.
You may have an element or two on the left side of the printhead that is worn out and not printing. The best way to see if elements are not working is to use the widest label you have and run the PAUSE test. Turn the printer off, press and hold the PAUSE key while you turn the printer on. Keep pressing for about 10 seconds and then you can let go. When the printer is finished starting up, a test pattern will print. Part of the pattern is a black box. Any elements that are not working will show as white vertical lines. The only way to correct is to replace the printhead.
This is a custom setting. You will find on the user manual (and also at the bottom of the Quick Start guide) a special barcode that, when scanned, toggles between "CR after barcode" and "No CR after barcode".
Mechanically there isn't much difference. Electronically the 4Mplus replaced the 4M giving it more memory, ZPLII capabilities, and the ability to work with new barcodes and fonts that weren't supported by the 4M firmware.
Not sure if this is 100% fixed but the teklynx had two zebra printers listed, one 200 dpi and another 203 dpi, when switched to 203 dpi the barcodes came back. The labels prompt for conversion to 203 dpi and aren't perfect but close enough to use.