Problem with et8550 after firmware update
tldr; 4x6 borderless prints are not printing all the way to the bottom edge after firmware update to ET 8550.
I have used multiple epson et 8550s for a long time with good results. I recently purchased a new one and noticed that 4x6 borderless prints were not printing all the way to the bottom. I returned the printer thinking it was defective and bought another one. The new one has the same issue. I have done tons of troubleshooting and I am stumped. The only other thing that I can think of is that it might be related to the latest firmware update.
The image shows a sample of 9 prints of the same image. 2 on the left came out fine while the 7 on the right all have a small unprinted sliver at the bottom. I have done this test with multiple images and the issue is the same. Some prints are fine, others come out with the unprinted edge.
I use all epson paper and ink, no 3rd party.
Things I have tried:
Turn on/off printer and PC
Power off printer and unplug for 30 min
Verify all settings (4x6, premium photo paper glossy)
Alignment check/adjustment (x5)
Nozzle check/cleaning (x5)
Using a different pack of paper
Update firmware/software
Upscaling/downscaling images
Adjust expansion slider
Printing from other trays
Adjust paper feed tray to make sure paper is entering straight
Change ink drying time
Has anyone else experienced this? Does anybody have a solution? Thanks.