TSB

screen printing => Equipment => Topic started by: ScreenPrinter123 on October 26, 2016, 10:22:44 AM

Title: 4880 weird streak on film
Post by: ScreenPrinter123 on October 26, 2016, 10:22:44 AM
I have attached two pictures, one zoomed out and one zoomed in to show the problem we are having.  I just recently cleaned the capping station and flushing box but it did not fix the issue so I am wondering if it is something with the printhead.  Any ideas what is causing the little lines on the edge of the print and what we can do about it.  After sitting idle the printer will do this for the first foot or so of film and then it goes away.
Title: Re: 4880 weird streak on film
Post by: Doug S on October 26, 2016, 12:51:55 PM
My 7900 on the rocket launcher was doing that until I replaced the head.  Hopefully you won't have to go that route.  You could try cleaning the encoder strip.
Title: Re: 4880 weird streak on film
Post by: mimosatexas on October 26, 2016, 01:23:17 PM
I've seen this occasionally on my 4800, but only for 3 or 4 inches of the first print after it sits for days without being used, like a long weekend plus a day or two.
Title: Re: 4880 weird streak on film
Post by: ScreenPrinter123 on October 26, 2016, 02:48:21 PM
I've seen this occasionally on my 4800, but only for 3 or 4 inches of the first print after it sits for days without being used, like a long weekend plus a day or two.

Ours does sit days at a time here and there, but now it is starting to maintain the streaks when they used to go away after printing a little.  In fact today it has not gone away after several feet of film.  Anyone have a source for printheads?
Title: Re: 4880 weird streak on film
Post by: ScreenPrinter123 on October 27, 2016, 03:32:05 PM
My 7900 on the rocket launcher was doing that until I replaced the head.  Hopefully you won't have to go that route.  You could try cleaning the encoder strip.

I cleaned the encoder strip and the problem went away.  Hopefully that solved it and it was not just a coincidence.