Kathy,
How much shift are you seeing from sheet to sheet? Is it impacting certain label materials (e.g. matte white, gloss, weatherproof polyester) more than other materials?
There are a variety of things that can impact the way your printer feeds. Keeping the rollers clean can definitely help to improve the amount of slip when the material feeds into the printer. Unfortunately, there is always going to be some very minor shift when printing labels using a desktop printer. In most cases, the best strategy is to reduce use of borders and make modifications to your artwork to make it so it is harder to tell when there is shift. Printing borders on small circular labels is always going to be challenge, and I typically discourage that type of design when printing your own labels unless you are fine with having a decent amount of wasted labels.
You have probably reviewed this alignment guide below in the past, but I wanted to post it here just in case.
https://www.onlinelabels.com/articles/printer-alignment-guide.htmKeeping the sheets tight in the tray is important. It sounds like you are already doing all that can be done there. The feeding mechanism and rollers on the printer definitely play a role. Making sure your rollers are clean and selecting the correct media type in the print settings are critical. Do you notice any difference when you use the manual feed tray?
Are you putting the sheets in the same direction every time? It is important to put the sheets in the same orientation each time as the curl or grain direction of the paper can make an impact on the way it feeds. In addition, there can sometimes be small variations in the margins on our label sheets. Always putting in the sheets in the same direction in the tray helps with that since the margin variance tends to be consistent throughout a batch of a specific item.
I am happy to try to offer more advice once I get some additional details.
Thanks.
Dave C.
OnlineLabels.com