| Greetings & Questions on FR and GR Drums
I have a little business in Key West, FL and have wanted to get a Risograph for a long time and have watched eBay a lot. Either too far away or too expensive.
Anyway, I just purchased and picked up two Risograph FR2950ui units. They look good and only have 3700 masters and 111000 copies. They were used by a printer and have been in a storage unit for 6 months.
The ink on the masters in the disposal boxes was still wet, so I hope the drums are not dried out. There were no masters so I have those ordered, but can't do anything until I get those.
Which machines were made first, the GR or the FR? I see no drums ever for sale for the FR but I see an occasional drum that are FR/GR. These drums are all 8.5 inches wide. I gather if they have the (W) they are 11 inches for the machines that use those. I assume that the 8.5 will work in machines that also do 11x17. It seems there are different size masters too.
The 8.5 GR drums look the same. I purchased a green one. I figured if they don't work I will get a GR machine too in the not too distant future.
Want to buy some more GR drums as the price is really good. Will they work, and if not, why not? Then, where are all the FR drums? It makes no sense to me to make changes to drums for machines that must be about the same age and have the same specs.
In fact, can anyone explain why Riso has so many different machines that seem to have the same or very similar specs? | 
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