Weird EPS Printing Issue

[1964GN]

Windows 7, CS6, Accurip, Epson 4800 rolled 5mil film.

I am having an issue printing DSC EPS files. All SEPS are now done Photoshop, placed in Illustrator and the channels are printed. In a few case recently the underbase channel doesn't print.

I create channels, do my seps, convert each channel to spot, save as DCS 2, new illy doc, place file, set artboard size, set print size, print. It actually gets sent to Accurip but zips right through and nothing prints... like there is no data in that channel. I have to create a new channel copy/paste into the new channel in order to get it (underbase) to print in Illy. Very strange.

I have tried changing the mode from CMYK to multichannel but get the same results.

While I haven't tested everything I am wondering if I should be creating a new SPOT channel instead of an alpha then changing to spot, but I don't think that's the issue. I know I have done that with colors other that the underbase and they print fine.

I have tried renaming the channel, and/or resaving the PS file and replacing the original but nothing. The only thing that seems to work is creating a new channel and dumping the old/bad one.

I must be missing a step somewhere?

[Ross_S]

I've had that problem years ago and not sure what really fixed it.  Quick fix though go to photoshop and change the whitebase to a grey or another color other than white.  For some reason it seams to not pick up white as a color.  I use to change it to grey and it would work just fine.

[blue moon]

try opening the .psd file in illustrator directly or dragging and dropping it into your template. Eliminating the DCS file might fix it and will save you some headache.

pierre

[Gilligan]

I had this happen twice to the same file.  I was using reserved names.

Make sure your channels have "odd" unique names.

Just what happened to  me, might be something completely different for you.

[Squeegie]

The only time I have troubles like this is when the base color is set as white (CMYK 0,0,0,0 or RGB 255,255,255)...any other color setting will print fine.

Best of luck,
Bill

[1964GN]

Thanks for all of the tips. I have tons of film to print over the next 24 hours!