Recent content by jonprintz

Jack, it would be helpful to explain a little more about what you are trying to do. Do you have a press set up for waterless printing? Or, just wanting to trial waterless printing on an existing press? What type of press? UV or Conventional inks? Mantman has a good summary of waterless...

The lamp output of the iron doped lamp is of a narrower wavelength compared to a mercury vapor lamp and runs at a lower power level. Typical installation uses only 1 lamp to cure with on a straight press. If all of your work is 4-color process on paper substrates with an occasional coating this...

This is a problem that has popped up in several LED press applications that I am aware of. If rollers & pressure settings are set to specifications then you need to take a good look at fountain solution. This is a good time to get the technical representative from your fountain solution supplier...

I have nothing but nice thoughts about a Davidson 701 that I ran for a year back in the late 1980's. It did everything that it was asked to do at a high level. Great registration no matter what the stock.

A prime consideration when you purchase a used press with some age on it is whether parts are available to keep it running.

When I ran the Goss Community heatset 4 high back in the early 90's registration was always moving. The infeed working correctly and a clean bottom of the press roller are critical for keeping good register. As you mention, the cheaper grades of newsprint will give you more problems. A bigger...

Henry, My first thought is pressure. Are all of the blankets packed the same? Check the bearer pressures next.

MB, I was a web press operator from 1988-2004 and currently work for a large printing company in Dallas, TX that has 3 web presses along with many types other print processes. I handle the R&D for all departments as part of my duties. The problem presented above is not unique to web UV...

I think you have nailed it. The traps are not set up for the ink sequence the press is running. UV inks do not require a different sequence than conventional inks. Black ink is more difficult to cure. The black may be sequenced last on your press to keep that layer closest to the lamps. This...

Goss Community 4-high. I hope that I never see another of those pieces of junk in my lifetime.

Plasticpro, I've not seen this problem on the Genius in our shop. It would be a good idea to check the lamp hours but I don't think that is the issue. Is your customer having this problem with other stocks?

The scratch resistant properties of black (with no undercolor) on styrene are always less than on other stocks...even when the ink is fully cured. As already stated, make sure your lamps / reflectors are in optimum condition. The main problem is just the styrene. It is preferable to coat or...

I agree..this press is the most innovative press of the decade. It won't feed 60# paper though.....the minimum is 70#. M/R is normally closer to 20 sheets but that is still a very impressive figure.

Normally when we run a "bump plate" it refers to an additional solid or heavy screened plate with the same image the heavy ink areas in the art in order to get more ink on the sheet for increased density or vibrancy. This is helpful for PMS colors or for heavy solid colors. This also helps if...

If I read your questions correctly you want to print 4 cp / opaque white / 4 cp in small quantity various versions for a 2-sided image on clear stock. The below will work for both static cling and ps vinyl. My first choice of printing this combination would be to use the Litho UV process...