I'm having problems with the ribbon on my zebra zm600 printer. I've tried loosening and tightening each side of the plate (in every combination), but the ribbon is constantly moving left/right and make crinkles in the labels. Any suggestions on how to solve this?

SOURCE: Problem printing on Glossy Label [butterfly label] using Zebra TLP 2844 EPL

You must make sure that the ribbon is compatible with the label you are attempting to print on. It must be a permanent resin. We use the AXR7+ material. Try to avoid using such a high printer head temperature as this will reduce the life of the head.

SOURCE: Zebra LP 2844 fuzzy print

1. Clean the print head with cleaning pen.
2. Adjust print speed/darkness in software.
3. Check the media and verify that print surface is facing up.
4. Check that correct thermal media is in use.

SOURCE: Zebra 105 SE Printing Blank Labels

Seagull Scientific has drivers. Their Zebra driver is recommended by many.
http://www.seagullscientific.com/aspx/drvrmain.aspx

That's the link for their printer drivers page. Go to the bottom and click on 'Download a printer driver'. Then scroll the list to find the one you need.

SOURCE: Zebra S600 printer

1. Try just storing your labels in a cool dry place before using them. Peeling labels are usually a sign the glue is poor or weak.
2. When tearing you labels off, feed them out before tearing them off, then hit the auto-align. See if that helps it.
   
3. Try pushing a normal playing card under the metal cutter that tears the labels and pull it up and through the front to bend the blade slightly outward. This will hopefully allow the labels to pass underneath.
   

SOURCE: Zebra TLP2844 does not print the barcode label

Turn off the printer, then hold down the feed button while you turn it on again. After the configuration label prints, turn the printer off and on again,then try to print your labels.

If the barcodes still don't print, make sure they don't extand past the top, bottom or side of the label. If you software allows you to "clear the label cache" or "re-image the enitre label", try that.