Printer leaves black band on label and does not printthe letters in this area

The print head may need to be clen, follow the instructions in this user guide:
http://www.ptouchdirect.com/ptouch/manual/PT65.pdf

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

This is due to the quality of the ribbon.
When the paper moves back, since the head is not raised, the paper rubs on the ribbon en is the cause of the black smudge. Use correct Ribbon

By gaps, do you mean a "void" area ? Over time, the elements on the printhead will wear down and finally they won't transfer heat to the ribbon. This causes a gap or void area. Usually the elements go out one or two at a time. If the area that is worn out is supposed to be printing bars for the barcode, this will cause the scanning problem you are experiencing.

The best way to see if elements are worn out is to design a label that has a thick solid black line across the label or a solid black box. You will see white vertical lines in the areas where elements are worn out. Another method would be to use the widest and longest label you have and print a 'pause" test label. This is done by turning off the printer, pressing and holding on the PAUSE key while turning on the printer. Hold the pause key for 10-15 seconds and when the printer is done with it's power on self test, it will start printing out a test pattern label which includes a nice black area where you can look for the white vertical lines.

Hope that helps !

yes .. the print heads can be calibrated to compensate for cold labels or you could just warm them up .. if they are really cold then it takes longer to expose the image .. if you dont compensate for that then the letters will not be fully developed (grey)

You can change it by pressing and holding the function (or special) button while you touch the button with a black background.

I was having the ame issue. Found the solution on the user manual (posted online). Press Function, scroll to "Margin", press "Function", use arrows to select "#" or "##", then press Function again. Now it should print with a margin, thus not cutting off your letters. Mine was set to "-", which is basically no margin.

This is a problem of label sensing.

You are probably using the Gap sensor on the 2844, unfortunately the shape of the butterfly labels means you are sensing the wide gap between the labels in the centre, so it will not print anything in the apparent gap area on both ends of the label.

What your label or system supplier should have done is supplied you with the same labels but with a 3mm wide black mark on the underside of the label backing paper, centred between the labels. You can then change the printer sensor setting in the driver to Black Mark. You will then be able to print anywhere between the black marks.
Any problems with this contact us directly at Lancer labels Ltd

Samsung CLP-300 color laser leaves 3-4 lines of various shades of black in middle of paper. Otherwise everything is great.
Posssible black toner cartridge problem?

Check the temperature settings. If all of the text and barcode is clear and not fuzzy, check the platten roller for low areas, cuts, or other deformity.

The problem of your unit is its printer. Probably the gears has misaligned. Only an authorized technician can align the printer of that unit, because it is a bit difficult to align the gears.

Try to contact the nearest service center of casio in your area.