RISO GR3770 - Faded print/old ink

[Cp31]

(little question about this specifically : is this "fixable" by increasing heating around the machine for a few minutes before printing, or is it a constant requirement ?)

however : its systematically the top third

[jermyth]

Re: RISO GR3770 - Faded print/old ink

I'd say without looking at samples that the drum needs more cleaning. I suspect the drum shell has A LOT of dried ink in it. You may have to disassemble the drum to clean out the inside of the shell. The GR is a dinosaur. I know a lot of people keep running them, but parts a rare. I don't know about supplies. I don't think I have manuals for them anymore but you can try searching, you will need one to take the drum apart.
Good Luck.

[Cp31]

here that u could "stick a bit of diesel or kerosene in the end of an ink tube and stick in the machine. should disolve the hardened ink inside the drum". how would you go about doing this ? like actually put a small amount of solvant IN the cartridge ?

will give updates ! thanks again

[slimslob]

Re: RISO GR3770 - Faded print/old ink

After sitting that long the ink in it has most likely thickened considerably. You can either disassemble the drum and remove all that thickened ink or just put a fresh ink cartridge in and start running prints with a high coverage percentage. That will eventually thin and flush out the old ink.