DR-313 Color Drums?

[Oystercopy]

Hey guys..

So I used to use the color reset chip on the black drums to make them into color drums, but it appears you can't do that any more??
I understand KM changed the drums so you can't swap them out, the way you could on the 4 series. As many of you may know, the image quality is horrible on the black drums when used in the color spaces.

Does anyone know of a good, reliable Color drum (cylinder) that can be used to convert these into color?

Thanks in advance,
OC

[Miltan]

That's interesting. Never had trouble converting DR313K / A7U4-0RD into colour unless they changed something recently. You said you reset chip. I just remove it from the black drum and replace it with 582M2SUB8 colour chip. Just make sure it sits perfectly.

[kingarthur]

have you changed the front end plates and spacers, and removed the tab half way along the unit - if i remember on the 4 series , you only had to change the chip...

[copyman]

Agree with King, on the DR313 you not only need to change chip but also need to change a few things. You will need old color drums for the parts needed to convert B&W to color.
The procedure to make B&W drums to color has been discussed on this forum many times. Hopefully it will come up if you search forum.

[Oystercopy]

Thanks guys yes I've definitely swapped out the units from black to color I know about the tab halfway through and of course put a color chip where black used to be..
What happens is even though the drum physically fits in the slot, (no need to change end caps or any other parts), image quality is totally faded. I'm told KM purposely did this to keep you from using the black drum in the color slot. I'm told they actually change the formulation of the drum itself in the unit to not function (the same) in the color slot

if you haven't converted one lately, you may not be aware of this but this is what I'm seeing and it's happened on three machines so far.

[tsbservice]

OC do you swap front end drum to dev spacer?

[kingarthur]

You HAVE to change the front black end cap, and the parts associated with it - or you will get the fault you are describing - I think you are having a "senior moment"

[Oystercopy]

And exactly what does that do to change how the drum reacts to light?!

Is there something about the end caps that changes the trajectory or the angle of the drum to the laser?

[tsbservice]

And exactly what does that do to change how the drum reacts to light?!

Is there something about the end caps that changes the trajectory or the angle of the drum to the laser?

OC
Seriously, we can't help without your assistance.
Once you did it with BC before don't you think it's time to step up and actually listen to valuable friendly FREE advices?

[copyman]

Nothing to do with laser. It's really simple, it's the spacing between drum and developer unit and why prints will be faded.. Like my previous post states this has been discussed many times on this forum. Try using search feature.

FYI, I've rebuilt about 50 of the DR313 drums and use same drum for B&W and color. Again only difference are the plastic end cap, spacer that are different and specific to either B&W or color

[Oystercopy]

Guys, and especially you TSB, I apologize and don't mean to be difficult. I'm not having a "senior moment", I just want to know what it is that was actually DIFFERENT about the two units and why I'd be having this problem. Now that I understand it has something to do with spacing, that makes total sense.

However, I did go looking through the forum with all kinds of relevant search words and only found one post that actually showed the difference between the front flanges on the two drum units. Based on that picture, I still don't understand what it is (a spacer?) that's different and I guess I'm going to have to tear one apart and see if I can figure it out.

But I was also told that by one of my suppliers that KM had changed something about the drum (itself) so that's why I was going that way.

My sincere appreciation for all that offered help!
OC

[copyman]

Guys, and especially you TSB, I apologize and don't mean to be difficult. I'm not having a "senior moment", I just want to know what it is that was actually DIFFERENT about the two units and why I'd be having this problem. Now that I understand it has something to do with spacing, that makes total sense.

However, I did go looking through the forum with all kinds of relevant search words and only found one post that actually showed the difference between the front flanges on the two drum units. Based on that picture, I still don't understand what it is (a spacer?) that's different and I guess I'm going to have to tear one apart and see if I can figure it out.

But I was also told that by one of my suppliers that KM had changed something about the drum (itself) so that's why I was going that way.

My sincere appreciation for all that offered help!
OC

No need to apologize, you did nothing wrong except some miscommunication. Attached is pic of the spacer and different from B&W to color. I know the front end cap is different as well. Also need to remove a plastic piece from bottom of B&W drum unit if it's going to be converted to color.

[tsbservice]

OC, PM me and I will send you some pics.

[Oystercopy]

I did my first conversion last night. looks like you have to change the outer flange as well as the spacers(?) inside it. Worked like a champ.

Thanks again guys!

[tsbservice]

Congrats OC. The key is to move that black plastic part held with 3 screws. It has spacer which is held with 2 screws and those are different and don't touch them.