Auto Printing Light

[discounttshirts]

So I am open to suggestions- i have a Javelin 6/8 Auto I had a job setup with white/gold/black and had to change the gold to end of the run due to the small gold text being covered by the dot gain on the black -- so after we reset it - the black prints light on heads 3 and 8 only. the white it on a 180 with the gold and black on 230's

Just a few months ago we replaced all the squegee rubber and releveled the boards - i am open to suggestions- it is in head #3 and we dont use it much - mostly when you do sim process and head 3 almost always has the red screen - its possible it has been this way we just didn't notice-- do you think it could be the head or are we talking strictly about a board problem - the press is 8 years old aluminum boards- I guess we could switch out the 3 and 8  boards with another and see if the problem moves also?
thanks for any help

[blue moon]

it would not be the platens, they rotate from head to head. It could be many things a picture or a video would help. Trying to figure out what light means without visuals is difficult.
To clarify, you took the black screen that was printing fine and moved it to head 3 and it is now depositing less ink? Were you using the same squeegee and floodbar angles? Same pressures and speed?

based on the limited amount of info here I would guess air delivery problem or head out of alignment. Getting more info will help figure it out.

pierre

[aauusa]

we have the same press and i would look at adjusting the pressure to make sure you are clearing the screen.  when we move a color which has been in one head for a while like your black and red(we do the same red in 3 and black in 6 majority of the time)   but when we move black into 3 we have to read just the pressure.  this is where I would start.