GR3770 Funky Master / Prints

[admgreen]

I recently dug up a few old color drums and gave them a try on my GR3770. The results were pretty funky. The print is full of spots / holes. Here's a picture of the master paper and the resulting print:
IMG_1221.jpgIMG_2151.jpg
Any ideas? What's the best way to clean the screens of an old color drum?
Thanks!

[ddude]

Talked about this here:


Riso GR dried up drum