Ricoh MP 2550 - Light Copies

[printsnow]

I have a MP 2550 that continues to have light copies. I have put new developer, new drum, etc and it will not correct the problem. I did the forced toner supply and it will be OK for awhile, then copies get light again. Any tips, we have always had issues with this unit! Thanks in advance this thing is driving us crazy!

[TonerMunkeh]

Could be the TD sensor's had it. Try replacing the PCU, B205 0151.

[printsnow]

Thanx TonerMunkeh, I just ordered one of those. Hopefully, that will take care of it, we have basically rebuilt the whole thing prior to this. Thanx again.

[Eric1968]

Is the laser shield glass clean?

[printsnow]

Yeah, the shield glass is clean as a whistle! Thnx!

[TonerMunkeh]

How many copies has this machine done? Could be tha auger gears in the PCU have been stripped. Does the machine ever go to toner end or do the copies just go pale?

[printsnow]

It only has about 130,000 on it. We didn't experience the light copies until we replaced the drum/developer. Talked to RFG rep and said to add the toner, didn't work, then we replaced drum again, because we thought it was defective. Just put a new toner in it when we replaced the developer. It doesn't say add toner, copies just fade after multiple prints (about three days) in between calls. This unit has been a nightmare since we got it. It squeaks on and off all the time, replaced everything possible for that, It's a good customer, but we have had hell with this machine.

[XXX]

Type 1027 Photoconductor Units

It only has about 130,000 on it. We didn't experience the light copies until we replaced the drum/developer. Talked to RFG rep and said to add the toner, didn't work, then we replaced drum again, because we thought it was defective. Just put a new toner in it when we replaced the developer. It doesn't say add toner, copies just fade after multiple prints (about three days) in between calls. This unit has been a nightmare since we got it. It squeaks on and off all the time, replaced everything possible for that, It's a good customer, but we have had hell with this machine.

I gave up rebuilding 3025 & 3030 PCU's in favour of swapping in the 1027/2027 PCU's along with the A2673831 transfer roller assy and never looked back.

The MP2550 is the same machine and takes the same T-2120D toner, so I can't see why this fix wouldn't work.

[iMind]

The MP2550 is the same machine and takes the same T-2120D toner, so I can't see why this fix wouldn't work.

[TonerMunkeh]

It only has about 130,000 on it. We didn't experience the light copies until we replaced the drum/developer. Talked to RFG rep and said to add the toner, didn't work, then we replaced drum again, because we thought it was defective. Just put a new toner in it when we replaced the developer. It doesn't say add toner, copies just fade after multiple prints (about three days) in between calls. This unit has been a nightmare since we got it. It squeaks on and off all the time, replaced everything possible for that, It's a good customer, but we have had hell with this machine.

Ooooh, hang on - which developer did you put in it?

[NeoMatrix]

Howdy Printsnow....
Sounds very much like you have two stripped developer stirring gears(one coloured white, one coloured black) in the bottom section of the developer tank.
You will have to purchase the entire bottom dev tank case as these two dev gears are attached as a
sealed unit into the lower case. These gear become so thing and small in the mesh-teeth can flex and jump over(no-mesh) the top gears in the top section of the dev-tank. If you have no toner orga you will have no toner distributed through the tank and light copies after two or three days....

HTH
GDM

[printsnow]

Thanks everyone, I am getting a whole PCU in Monday and hopefully it will take care of everything, hated to do that but I just want to get this thing overwith. I did put the Type 28 developer in it for the 2550. I will let you all know on Monday what the outcome is. Really appreciate all the help!

[XXX]

Thanks everyone, I am getting a whole PCU in Monday and hopefully it will take care of everything, hated to do that but I just want to get this thing overwith. I did put the Type 28 developer in it for the 2550. I will let you all know on Monday what the outcome is. Really appreciate all the help!

iMind had a good point, but if you're a small dealer and all of your customers are on contract & you only have a few Tech's then there is no reason not to switch to the 1027 PCU's other than the cost maybe.

We rebuild 1018/2018 PCU's because they work and it's cheaper but you have to look at the lower dev gears when you're working on it or you'll be back soon and waste a load of dev.

Like I said, I gave up on PM'ing 3025 PCU's because of the undertoning problem and it made sense to use the cheaper transfer roller assy' from the 270/1027/2027's to match the PCU.

I have a hard time picturing an experienced tech mistaking a type 1027 PCU for a 3025 or 2550 PCU but it really wouldn't matter as "most" parts would fit anyways.

[printsnow]

Hey all, PCU seemed to take care of problem, thank you for all the posts!

[iMind]

Nice too hear that, thanks for the feedback.