Printing grainy in the middle of the print run

[Zarah.Y]

Hi everyone,

Wonder if someone can help. I have HP Latex 335 and printing ok on but after around 200mm printing, it will become grainy. Anyone having the same issue as well. Note: Run all the test and alignment and been using the same material for years. Photos are attached. Thanks.

 

[balstestrat]

It would be wise to test on a completely different roll in a case like this, you always want to rule out a bad roll or even a bad batch of same material rolls.

However your optimizer printhead is likely toast. I would replace it.

 

[cornholio]

Optimizer head