DUPLICATOR GR3770 DRUM

[JCABRERA]

Hello!
I'm going to purchase a GR3770 and I'd like to know if this drum model is ok for a GR 3770:

FR/GR COLOUR DRUM (W)

Thanks!!

[ddude]

Re: DUPLICATOR GR3770 DRUM

Should work- p/n is S2806. See below-

Legal Machines - Inkless Cylinders for Color and black Ink
Model	Cylinder Color	Cylinder Black
All RA	S-657L	S-657L
All RC	S-918L	S-918L
TR1510	S-2100	S-2100
CR1610	S-2460	S-2460
All GR	S-2763	S-2763
FR2950	S-2763	N/A
RN21/22/25	S-3189
RN2000	S-3190
A3 Machines - Inkless Cylinders for Color Ink
Model	Cylinder A3	A4 Wide (Short Drum)
RP37xx	S-3534	S-3378
RP31xx/35xx	S-3534	S-3378
GR3770	S-2806	S-2807
GR3750	S-2806	S-2807
GR3710	S-2806	S-2807
FR3950	S-2806	S-2807
FR3950a	S-2806	S-2807
Fr3910	S-2806	S-2807
RC6300	S-824	S-424
A3 Machines - Inkless Cylinders for Black Ink
Model	Cylinder A3	A4 Wide (Short Drum)
RP3700/RP3790	S-3372B	S-3377
RP310x/RP350x	N/A	S-3373
GR3770	N/A	S-2325
GR3750	S-2806	S-2807
GR3710	S-2806	S-2807
FR3950	N/A	S-2809
FR3950a	N/A	S-2809
FR3910	N/A	S-2809
RC6300	S-824	S-424

[JCABRERA]

Re: DUPLICATOR GR3770 DRUM

Should work- p/n is S2806. See below-

Legal Machines - Inkless Cylinders for Color and black Ink
Model	Cylinder Color	Cylinder Black
All RA	S-657L	S-657L
All RC	S-918L	S-918L
TR1510	S-2100	S-2100
CR1610	S-2460	S-2460
All GR	S-2763	S-2763
FR2950	S-2763	N/A
RN21/22/25	S-3189
RN2000	S-3190
A3 Machines - Inkless Cylinders for Color Ink
Model	Cylinder A3	A4 Wide (Short Drum)
RP37xx	S-3534	S-3378
RP31xx/35xx	S-3534	S-3378
GR3770	S-2806	S-2807
GR3750	S-2806	S-2807
GR3710	S-2806	S-2807
FR3950	S-2806	S-2807
FR3950a	S-2806	S-2807
Fr3910	S-2806	S-2807
RC6300	S-824	S-424
A3 Machines - Inkless Cylinders for Black Ink
Model	Cylinder A3	A4 Wide (Short Drum)
RP3700/RP3790	S-3372B	S-3377
RP310x/RP350x	N/A	S-3373
GR3770	N/A	S-2325
GR3750	S-2806	S-2807
GR3710	S-2806	S-2807
FR3950	N/A	S-2809
FR3950a	N/A	S-2809
FR3910	N/A	S-2809
RC6300	S-824	S-424

Thanks thanks, could I share this important information on "wiki stencil web". Do you know it? stencil.wiki | A RISO wiki for artists, designers, and printers

[ddude]

Re: DUPLICATOR GR3770 DRUM

Thanks thanks, could I share this important information on "wiki stencil web". Do you know it? stencil.wiki | A RISO wiki for artists, designers, and printers

Sure, share away.

[mwillems]

Re: DUPLICATOR GR3770 DRUM

I'm still wondering, what part number the black drum for GR3770 has. It's different to S-2806, because it needs HD ink/master. But i am not sure, what is really different technically. And i'd like to buy one

Also, all this searching for compatible parts/consumables brings up an idea of an overall compatibility chart for machines/drums/ink/masters. All information with names/part numbers in one chart/sheet or even a collection of charts would be great.

[Phil B.]

Re: DUPLICATOR GR3770 DRUM

I'm still wondering, what part number the black drum for GR3770 has. It's different to S-2806, because it needs HD ink/master. But i am not sure, what is really different technically. And i'd like to buy one Also, all this searching for compatible parts/consumables brings up an idea of an overall compatibility chart for machines/drums/ink/masters. All information with names/part numbers in one chart/sheet or even a collection of charts would be great.

you sound like an end user.. not a tech.. I suggest calling a dealer in your area.. posing that question and have THEM give you the P/N's .. that way if you EVER need service tech you have their #!

[20gaugeO/U]

Re: DUPLICATOR GR3770 DRUM

You know you are talking about a machine from the mid 90's, right??? If you can find a drum it has probably been sitting in storage for years and if you can find a drum it and the machine are one part away from being a boat anchor. Which is why nobody is jumping to dig up old info on this dinosaur.

I threw my manuals out years ago when the last one bit the dust so from memory the drum differences are probably all internal. The PCB on the drum may be different or dip switches just in different settings, should be able to look at the stamped P/N on the PCB. Then I believe the squeegee 1 way gear and belt are different to stir the HD ink at a different rate... if you have an available drum buy it cheap and play detective with it. At the very least you'd have a spare mechanical parts drum. The Black ink is the only HD ink so the color drum (S-2806) may just need a dip switch change on the board or swap the entire board (4 screws and maybe 3 small connectors). The catch would be the rib that runs down the side of the ink tube that triggers the actuator switch... is it in the same spot??? Idk and have spent more time on this than I should... good luck