MP 5055 won't detect new toner

[Lawrence]

Howdy folks

2 weeks back i had a MP 5055 that kept saying to replace the toner even when you put a new toner in.

Checked toner motor & toner detect switch in SP modes. Toner bottle turns and the switch changed states. When you put a toner in and close the door the machine fires up for 5 seconds, spins the drum a few turns and the add toner message never leaves the screen.

I went into SP 3100 and turned off toner end detection and the machine fired up and started printing. It was super overtoned. I ran 50 sky shots with 1" on lead edge blank to prevent jamming and the background went away. Machine seemed good after that.

History on machine:
Machine does about 40k a month.
First drum went 160k, i usually get 200k on these.
We don't rebuild these drums, put in a entire PCUDU
2nd drum had lines at 80k.
3rd drum seems to be ok so far but im wondering if the machine didn't calibrate properly. April 15 we dropped them 2 MP6054 toners which yield 37k each. Customer chewed thru those and ran out on May 4 (obviously the force is not strong there ). I went down with another toner to verify the toners were empty and they were. I put a new toner in and the machine refused to start up. I had to change SP3100 again. Machine started printing fine with no back ground, after about 30 pages it started leaving background on the back of the pages. There is some toner leaking from the front and rear of the drum.

Im thinking new drum and going into SP3701 and manually triggering the drum replacement to make sure the machine calibrates and resets the counters.

Any thoughts or anybody seen this before?

Thanks

[DH1980]

I agree with SP3701. I would trip each item in the PCU and make sure the machine runs like it is doing process control.

[copyaction]

Was the toner waste full? Those 2 toners must have gone somewhere.
Also is it genuine Ricoh toner?

[Lawrence]

Was the toner waste full? Those 2 toners must have gone somewhere.
Also is it genuine Ricoh toner?

I always change the waste toner when a drum is done. When i was there 2 weeks ago i did check the waste toner and it was not full. I pulled the top of the drum and checked the waste auger as there is a TSB about that breaking and causing backups but it was fine and not a ton of toner in there. We are using OEM toner and parts for the machine.

Unless there are any other ideas i think im going to hit it with another drum and put the latest package firmware on it.

Thanks

[BLADE]

I seen one do this, couldn't work out what was going on. I thought maybe the user put a bottle in with the cap on and buggered something, then it fixed itself happy dayz... in the old days you could look for a small door open symbol but that symbol is gone now

[slimslob]

We are using OEM toner and parts for the machine.

OEM or Genuine Ricoh. There is a difference. Though OEM might meet the Original Equipment Manufacturer's specifications it very seldom meets their testing standards and quality of production.

[Lawrence]

OEM or Genuine Ricoh. There is a difference. Though OEM might meet the Original Equipment Manufacturer's specifications it very seldom meets their testing standards and quality of production.

All parts and toners come directly from Ricoh.

[slimslob]

Since you say that you replace the entire PCDU I would suspect that the last one you put in had a bad TD sensor. Turning off toner end detection tends to support that possibility.

[Mark Bbb]

TD sensor, possible.
But also ID sensor could fail.

[dalewb74]

this might not help, but thought i would mention it. an issue i had once with a ricoh ECO model was the ricoh toner that came from ricoh said it fit that model machine. this was the black toner. the ones for the color was fine. but what i discovered on the black was even though the box said it was the correct one that it actually wasn't. but when you open the cover to replace the toner there was a sticker below where the bottle inserts. that gave a different part number and once i ordered that one it worked just fine. kinda odd that ricoh would put the incorrect model number on their box.