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You have to be really careful with this. Not only the melting point, but the grain size of the toner matters. (smaller grain = better resolution-quality, etc). Trying to run chunky toner...

I have nothing but bad things to say about non Ricoh toner and I have had nothing but issues with them. Many years ago, I had a customer that had a MPC 2051. After about $3000 in repair bills because...

These are a huge upgrade from the MP301.

The two things to watch for are to put a pin in the back guide of the tray to keep the paper from falling back in the tray and also make sure the customer...

Best one I had for a toner bomb was a lady at an apartment complex shook a 2 series black toner bottle that was pretty much full and it went all down the front of the machine and all over the floor....

Imagine that.. a Ricoh having issues coming out of sleep mode. Shocking I say! (considering just about every series and model of Ricoh that has come out with sleep mode then requires some sort of...

I have a pile of 307's and IMC 300-400.

The yields according to the manual are the same for the PCDU's, but in my experience, it has been the 300-400's that barely make yield. Color easily goes...

Late to the party on this one.

As others have mentioned, you can't turn off the waste message and as a tech, you absolutely don't want to do that because there are a lot of things that can go...

So although I am late to this one, I will add a few items for those who have not had the pleasure of experiencing this first hand themselves.

If you have a PCDU with a packed dev unit (toner up...

Late to the party on this one.

In short, I am not a fan. You can read on if you want to see specifics.

Fusers do not reach yield at all. Not even close in most cases.
PCU's are not a lot...

Yeah, SC899 and Ricoh always doing firmware upgrades since the dawn of when network cables have been attached to machines. It goes right up there with death and taxes as being a certain in life.
...

Lot of questions, but not much information.

Color only or does it do it on B&W as well?
Have you tried running output checks just to run a specific motor at a time to see if you can isolate what...

Typical 301.

Most of the time you can change the PCDU after cleaning up the mess. Make sure you cancel the end toner condition or it will add more toner to the new PCDU, which is not what you...

Slim and Anothertech have it right.

These are notorious for having HDD issues stalling the controller, causing it to throw a SC672. I have also seen bad panels and in particular, bad...

I have to respectfully disagree about the reliability of this model/family of machines, especially the earlier versions of the machine with the SC672 code issues with the IOB board issues. I had...

401 and 402 have been ok after the initial batch of PCDU issues with them. Agree that customers that are rough with machines are not a good fit. Linkage from the door to the led array is fragile and...

Nice work getting it figured out.

As far as the differences in the toner bottles, the 4503 and up models use a different one. The differences are the keyway on the bottom of the black guide and...

Several good posts here both regarding the filters and also the paper.

If the machine didn't code, then it was very likely not really out of spec. If it was and went much higher, the thermo-fuses...

First, check the power like Slim suggested.

Secondly the fact that it bombs a 204 and then resets itself could be an indication that you have a poor ground on the door frame and/or high voltage...

Big +1 on the Rainx. That is my go to these days and I still use it from time to time, but mainly as a anti-static measure in paper paths, which it does a decent job at.

I also used Brillanize...

I agree. I have dumped the tank repeatedly and on machines that run a lot of black and white along with little color fill can expect to get more than what the PM count would indicate. However, once...

You managed to print out 1500 color pages in a single night on a MPC 2051? Was the machine reduced to a puddle of plastic after that? Just constantly loading paper in those 250 sheet drawers would...

Bit late to this one, but I used to work on a pile of these.

The other guys are pretty much all over it, but replacing the ITB cleaning unit is the correct answer.

Cleaning the ITB cleaning...

I still have a pile of these machines and have been using the new version of the PCDU. Despite whatever Ricoh says, I will believe improved performance when I see it. I use both the 411844 and had...

Not to mention people trying to use the cheapest labels they can find. I believe the only labels Ricoh recommends are Avery.

Just to echo the experience of others here along with my own.

In most cases, it simply doesn't matter which PCU you use (411844 or D1272110). The performance of the machine revolves around what...