MP 2555 drums not making life

[Dark Helmet]

Howdy folks

Got a MP 2555 that keeps taking out charge rollers. First drum made 120k. Next drum 40k. Machine is now at 200k so drum failed at 60k. Last call we did install a new transfer roller as well. We always use entire PCUDU. No rebuilds.

Charge roller is always contaminated with toner. Last drum i took apart and there was a line of toner in one spot of the cleaning blade like it was dusting out. I cleaned that drum up and charger and put in a different machine and it didn't make a week.

Anybody else seeing this? I feel like Ricoh is just sending us crap drums.

[copier tech]

Re: MP 2555 drums not making life

Howdy folks

Got a MP 2555 that keeps taking out charge rollers. First drum made 120k. Next drum 40k. Machine is now at 200k so drum failed at 60k. Last call we did install a new transfer roller as well. We always use entire PCUDU. No rebuilds.

Charge roller is always contaminated with toner. Last drum i took apart and there was a line of toner in one spot of the cleaning blade like it was dusting out. I cleaned that drum up and charger and put in a different machine and it didn't make a week.

Anybody else seeing this? I feel like Ricoh is just sending us crap drums.

PM counters are only to be used as a guide.

PCU life all depends what the customer is printing, how much toner coverage, media type/weight etc etc.

I always rebuild these PCDU works out cheaper.

I assume you are using genuine Ricoh toner?

[Dark Helmet]

Re: MP 2555 drums not making life

PM counters are only to be used as a guide.

PCU life all depends what the customer is printing, how much toner coverage, media type/weight etc etc.

I always rebuild these PCDU works out cheaper.

I assume you are using genuine Ricoh toner?

We use Ricoh toner. Customer is not doing anything funny media wise with these and i have other machines that have less monthly volume than this and are older and have never had a drum replaced yet.

[tsbservice]

Re: MP 2555 drums not making life

Sounds like drum charge roller fault. I would think ozone build up can contribute here. Are machine exhaust filters clean? Is it in dusty/hot/humid environment? Clean drum memory erase strips(leds)?

[Dark Helmet]

Re: MP 2555 drums not making life

Sounds like drum charge roller fault. I would think ozone build up can contribute here. Are machine exhaust filters clean? Is it in dusty/hot/humid environment? Clean drum memory erase strips(leds)?

Machine is in a clean office but ill double check the blanking lamps. Good call there.

[copier tech]

Re: MP 2555 drums not making life

We use Ricoh toner. Customer is not doing anything funny media wise with these and i have other machines that have less monthly volume than this and are older and have never had a drum replaced yet.

You have no way of knowing what the client prints.

Classic example a school will copy book pages with the DF up etc.

[slimslob]

Re: MP 2555 drums not making life

What size paper are they running the most of? The PM counts are based on letter long edge feed. They are also based on a minimum number of clicks per job. For a 55 ppm machine that number is going to be at least 20.

When you replace the drum are you doing a full PM with new blade, charge roller charge cleaning roller and developer?

[Dark Helmet]

Re: MP 2555 drums not making life

What size paper are they running the most of? The PM counts are based on letter long edge feed. They are also based on a minimum number of clicks per job. For a 55 ppm machine that number is going to be at least 20.

When you replace the drum are you doing a full PM with new blade, charge roller charge cleaning roller and developer?

They run a tandem so it's long edge feed. We don't rebuild those drums. We just replace the entire unit. Drum and DV. Power off, replace, power on. Machine calibrates.

Checking the PSG for the MP2555, it shows 1 P/J should yield 94k pages. 3 P/J it should yield 120k.
The MP6055 1 P/J yields 82k and 4 P/J is 150k.

Anyways ill slam another drum in and hope we have better luck.

[copytrust]

Re: MP 2555 drums not making life

You propably have a bad air flow inside the machine client must be using a lot of duplex side, replace all filters and check air flow and check developer unit for overtoning

[Gift]

Re: MP 2555 drums not making life

I don't like this series - we also struggle to get acceptable PM cycles with some customers. I noticed that this series is also pretty sensible when it comes to paper quality. Some paper brands/types makes the drum surface dull or paper dust can end up at the cleaning blade causing issues of all sorts.

[Brianneoe]

Re: MP 2555 drums not making life

I have a lot of 54 and 55 series machines out there and this problem is only on the 55 series machines..The long and short of this is we are replacing the drum frame when we run into this issue. Ricoh came out with a bulletin concerning toner build up in the cleaning unit causing the coil drive breakage but that was not the true issue. So far the only solution that has worked for me is to replace the the drum frame where a customer is having recalls on this problem. The drums as far as I see are not the problem since they are the same as the 54 series machines and we are only having this problem with the 55 series. The only difference between the 54 and 55 series machines is a solenoid for the transport of the toner waste. The 54 series had a solenoid that took some of the toner waste and sent it back to the DV unit for better yield. In the 55 series machines the solenoid was removed.

The cost of the drum frame is about $60 USD

[Dark Helmet]

Re: MP 2555 drums not making life

I have a lot of 54 and 55 series machines out there and this problem is only on the 55 series machines..The long and short of this is we are replacing the drum frame when we run into this issue. Ricoh came out with a bulletin concerning toner build up in the cleaning unit causing the coil drive breakage but that was not the true issue. So far the only solution that has worked for me is to replace the the drum frame where a customer is having recalls on this problem. The drums as far as I see are not the problem since they are the same as the 54 series machines and we are only having this problem with the 55 series. The only difference between the 54 and 55 series machines is a solenoid for the transport of the toner waste. The 54 series had a solenoid that took some of the toner waste and sent it back to the DV unit for better yield. In the 55 series machines the solenoid was removed.

The cost of the drum frame is about $60 USD

I just checked the parts guide and you are correct about the solenoid being gone. Why would the machine not recycling toner cause this? Seems strange but i can definitely agree that any of my 54 series drums seem to last. I think i remember seeing a post where a guy was finding the upper frame was warping and the toner reception seal would leak.

My machine had the exact same toner splashing on the drum blade as last time. I vacuumed the drum unit out, cleaned the blade off and charger roller and it's printing clean now. If it happens again im going to try a new blade on it.

[Brianneoe]

Re: MP 2555 drums not making life

Hi Lawrence..I have been battling this issue for over a year now and just some observations I will pass on about this problem.

1- Once it starts dropping toner onto the charge roller, just cleaning it up will get you out of the door but you will be back very soon for the same problem.

2- If you just replace the drum/charge roller on your second visit without replacing the drum frame you will be replacing those items again in about 40k or less for the same problem.

3- If you replace the frame only you will be back again because the drum has already been damaged and you will get lines again.

Not all the 55 series are having this issue but once you get this problem this is the only solution that I have found. It happens after the first PM rebuilt.

The long and short about this problem is this..You can buy the whole unit as one piece and save yourself a headache or you can piss off the customer, and after 40 years in this business I hate walking out of a customers office with the customer thinking I don't know what Im doing after the 4th time being there for the same problem.

[luca72]

Re: MP 2555 drums not making life

Howdy folks

Got a MP 2555 that keeps taking out charge rollers. First drum made 120k. Next drum 40k. Machine is now at 200k so drum failed at 60k. Last call we did install a new transfer roller as well. We always use entire PCUDU. No rebuilds.

Charge roller is always contaminated with toner. Last drum i took apart and there was a line of toner in one spot of the cleaning blade like it was dusting out. I cleaned that drum up and charger and put in a different machine and it didn't make a week.

Anybody else seeing this? I feel like Ricoh is just sending us crap drums.

hi, it's almost certainly the pcu chassis, it happened to me, the 54 series did it too, the spare part was re-coded, now I don't have the code at hand, but I think if you order it in ricoh, they automatically update the order of the part with the new code, at least, with us they do so