Riso RZ 970 master disposal error, problem with one drum

[thibaut]

IMG_2410.jpg

[s817]

Re: Riso RZ 970 master disposal error, problem with one drum

try replacing the clamp unit assy , I have had many fail and the symptoms are as you describe especially where the master tears
in half , ( normally the front half of master is still under clamp plate ), and yes it can affect different drums to differing degrees
and can be intermittent

good luck

[thibaut]

Re: Riso RZ 970 master disposal error, problem with one drum

Thanks for your last suggestion s817. I have another problem very different I got to fix, but in the next days I have to test a new drum !
Since one month, I've had NO problem at all but my drums still have the tape on them. I think, right, it's something very subtle and unclear from the clamps...

[jermyth]

Re: Riso RZ 970 master disposal error, problem with one drum

If you look at the pictures 20gauge posted earlier the ejection plate is sticking to base and the base needs either smoothed out or as in the first picture cut off.

Good luck.