Need Help Weird Print Pattern on Sihl 3747 Backlit Film using HP Latex 260

[Andrew Hodgson]

Hello, see the attached image for reference. I am getting jagged off-color lines in my print. I ran a print job that was 476" long and this only happened to a couple of signs on the run. I checked the graphic and it should be a solid color.

- This only happened to red and purple color solid blocks. The graphic is just several colors of squares
- I have plenty of ink
- I just lubricated the printer
- I can run the same graphics again and not have this problem. But at least one of the graphics in the run will have this issue
- I did a print quality test and didn't notice anything weird

Any ideas on what I can do?

 

[BIG EASY DOES IT]

I would say a head issue. Probably not alignment, probably has more to do with clogged nozzles. do a printhead test and post the picture. Probably magenta head.

 

[Andrew Hodgson]

I would say a head issue. Probably not alignment, probably has more to do with clogged nozzles. do a printhead test and post the picture. Probably magenta head.

This is the correct answer. I had to replace the magenta printhead. Thank you!

 

[BIG EASY DOES IT]