RISO GR1700 Drum Problem (see image)

[KevinWWFG]

Hello

So I have a RISO GR1700. I have 6 color drums and 1 black drum. The color drums work well and I don't really have any issues with them The black drum on the other hand seems to have developed an area that won't ink. I attached a picture where you can see the un-inked band that goes around the drum. I'm wondering if anyone has had this issue and if you can recommend a fix.

[docu1]

gr1700 banding

I would check the inking roller inside the drum. It is either damaged or has something stuck to it.

[Joe Foe from Buffalo]

1st I wouldn't keep the drum vertical very long. The ink will start to run to places you don't want. Next clean the screens and then the roller system in the drum mentioned.

[RRodgers]

I agree with both posts above. You are going to have to crack it open and see what's blocking the ink roller. (I'd be willing to bet it's a screw that came loose.)

[KevinWWFG]

thanks. i'll crack it open and give it a whirl.