https://ij.manual.canon/ij/webmanual/PrinterDriver/W/MG2500%20series/1.0/EN/PPG/Dg-pagesetup.html

https://ij.manual.canon/ij/webmanual/PrinterDriver/W/MG2500%20series/1.0/EN/PPG/Dg-pagesetup.html

https://www.inkdropprinterservices.com/free-printer-service-manuals

The link below takes you to instructions on how to set up your page when printing on your system, look it over and see if it helps.

What curing oven do you have? Without seeing a pic of the oven I have two ideas off the bat: 1. Most of these ovens are intended for 220v , so if you have it plugged into a 110 volt outlet without a step up converter then the oven won't get the amperage it needs to heat up. Are you using a step up converter from 110v to 220v? They can be found at home depot , walmart, amazon...etc. 2. These ovens have relays, maybe the relay is bad. Send pics of your oven with a good description of what its doing in the form below, hopefully we can help. https://www.inkdropprinterservices.com/printer-repair-request-form

I also STRONGLY suggest getting a "Step Up Power Converter" from 110-220 that can handle atleast 200 amps.

I two systems DTF systems here at the shop and honestly they are both working well (L1800 and R1390).....I wish the R1390 was a bit faster though....what are you printing with?

Kristi, How many prints into the run are you getting before you start seeing the banding (1 shirt,2 shirts...etc?) And what color is banding? Can you post some pics?