Mpc 2550 false empty toner

[Jomama46]

This machine has about 5000 copies on it and you can only make about 15-20 copies and the black toner end comes up. Open and close the front cover and it adds toner and comes to ready.But then 15-20 copies later same thing. The toner cartridge feels full. I even tried a new cart with the same results.

The black copies are a little light and the VT display is a little high, just as you would expect. But forcing toner doesnt seem to have much effect.
We have replaced the toner hopper unit and the toner motor. Also the RFID board and even the PCDU. The PCDU seemed to have fixed it but its back after only a week.,
I set the black for manual toner add, even up to 10 percent and it didnt make a difference.
It seems like it wants the toner and is trying to add the toner but it isnt going in the PCDU.
Another thing thats strange is on the WIM, it shows that the K toner is half full, even with a new one.

There is a toner end sensor listed but I dont know where it is.
Any good guesses about what is going on here?

[TonerMunkeh]

I'd suggest the toner pump. When you take the K cartridge out, does a bit of toner puff out?

[Jomama46]

Thanks tonermunkeh, this doesn't seem to have a pump like the MCP2500. It looks like the toner drops in from the top down into the dev unit.

[PinevskiS]

Go in SP mode 3045 and put off then put on.
I have this problem .

[TonerMunkeh]

Sorry, I misread. I thought it said MPC2500. Only things I can think of are the TD sensor or the engine's settings have gotten a bit messed up. Try and engine all clear with a brand new toner cartridge, then update all the firmware to latest levels. Failing that, new dev unit.

[Jomama46]

"Enables the toner alert display on the LCD"
Wow Really? I'll give it a shot. Thanks

TonerMunkeh, tried the CRAM and Developer is part of the PCDU.

[PinevskiS]

I agree with TonerMunkeh but he must try first to put off toner reader.

[zico21]

Off topic, (and I haven't been on this site much lately so maybe its been discussed already) but the PCDU (D8092000) cost $255, while the drum (D0392020) is $64 and the DV unit (D8093001/2/3/4) is $80, regardless of color. $110 is a lot to put the two together!

[TonerMunkeh]

That is a bit odd. Good thing you don't have to replace the development unit too often really.

[zico21]

Ricoh pricing is often a bit odd, to say the least. The price for the DV unit includes the developer, but I have been trying to determine if there is a recommended PM cycle for the developer. One could infer that the 60K "drum" PM cycle includes the developer if they are referring to the PCDU. So far we've replaced the black drum and DV units on 2 copiers, both at around 80K pages (mostly black). The copies still looked OK.

[rthonpm]

I have had really good luck of late clearing these with a firmware flash. Seems like it's one of those great firmware Easter eggs...

[Jomama46]

Thanks for the input

[zyqwiz]

Off topic, (and I haven't been on this site much lately so maybe its been discussed already) but the PCDU (D8092000) cost $255, while the drum (D0392020) is $64 and the DV unit (D8093001/2/3/4) is $80, regardless of color. $110 is a lot to put the two together!

The other colour machines are like that as well. At least on these there is only one type of drum unit and not a rip-off 'colour' drum unit!

[PA5RR]

Did you check the toner entrance to the drum-unit? If you cleaned the unit with vacuumcl. you probably succed out the charging developer a bit or all of it !
This will cause problems as discribed....If so, you need a new developer unit and with that comes a tiny bottle developer See your installation manual.
Please let all of us know your problem is solved and what was the cause ? Thanks !!

[Jomama46]

Did you check the toner entrance to the drum-unit? If you cleaned the unit with vacuumcl. you probably succed out the charging developer a bit or all of it !
This will cause problems as discribed....If so, you need a new developer unit and with that comes a tiny bottle developer See your installation manual.
Please let all of us know your problem is solved and what was the cause ? Thanks !!

The Toner Hopper unit comes with the little bottle of developer, not the developer unit.