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Why are you so sure that it is a ink problem? You can use old ink without problems as long as it is not "falling apart", drying in ore something like that.


You wrote "Drying time is one .....

I would search google after "GR 3750 manual" you can get it for free on the RISO website and don't need to pay on obscure pirate-sites for it.

Or maybe it is just dried in. You can check it by "cleaning" the drum from the outside. Take the drum (without master on it) and spray WD40 oil on the screen surface. You can also rub a little with a...

You should ask the people some own the copyrights on the manuals you are selling if it is "your money" :D

But there is sure a reason, that you have rented the URL and server as an anonymous...
...

OK, Thanks! So I better buy this stuff, even if common silicone sure will do it too...

Do you have a clue what is different between the "EP" Risos and the "non EP"?

Little hint for you: even if the manuals are from the manufacturer someone has the copyright on it (at least for the pictures in it) and without explicit permission you have no right to sell them....

RTV gasket is some sort of fast drying silicone if I see this right? If I let it dry little longer I could sure use simple silicone form sanitary handcrafting?

And there is no problem to...

For someone who is selling copyright protected stuff (I am sure you have the permission of every individual holder of the rights. haven't you?) you are a little rude, aren't you?

Me neither so a list would be fine :-)

Also with some experiences maybe?

I have a "black drum too many" for my RN 2500 now and I am thinking about to refill old black (cleaned) cartridges with...

I will see, new paper is ordered and will be tested soon.

I also got a 2nd RN2500 now very cheap with two extra drums. It is a 2500 EP now, what is different from the normal 2500? The new one has...

Addblock?

If this doesn't help in the first place, maybe you have to use (google) "Angry IP Scanner" a programm that finds all devices within a IP range you give it. Your virusscanner will sure give false...

Don't you have a manual? I have different Tec-Manuals for Risos but the user handbook only for my printer.
If not, try to get it via google with a little search you can find often something...

i googled a litte and found this:
...

I can only guess, as I said, I don't know this Riso and how it is connected.
At older devices it is often that the USB is a USB to LTP device, so you need a driver for that. You can check the...

Do you have drivers with the Riso? For which System?

My old Riso works only on XP, no chance to get it to work with Win7, so I got and old Notebook as remote to drive the RISO.

Maybe you should...

I will get another RN 2500, I will have it for spare parts, but the drum is interesting. As I got 2 black drums now, how can I outsmart the drum to print colour?

I know it is possible, without...

15 minutes were not enough, but I proved to dry about 1-2 hours. I also put the speed down to minimum and it became better, not perfect, but about factor 5-10 better. Now i have one flipped/folded...

Sh***
I have to print much A5 and +/- 2mm is much for such a small sheet of paper.
I will test it with letting the sheets dry first. How long will it take?
Maybe using 100g paper instead of 80g...

I got a RN 2500 and got a 2nd drum for colour now.

I am asking me how accurate is the riso in printing 2 colours?

Are there tricks to get better results in colour-fitting? In the printer menue...

My old RN 2500 works fine with old ink, I would not give this point too much attention, I just would give it a try with the ink.

But first you have to clean your drum carefully, best to do it...