Bizhub 500 C2803

**ROP84** · 10-21-2017

PM time. Did a drum and developer change. Reset the drum/dev/ life and pm counters. Ran the TCR adjust. It set up at 46. Copies looked good. Over the last couple days the customer ran 5k and had three 2803 codes during the run. I went back today. Started over, reset the counters and ran the TCR again. This time it set up at 107. Not sure if the higher the number the more or less toner in the developer but I'm thinking there's a problem with the toner feed assemblies over or under toning the dv unit. Customer called back this afternoon saying copies are lighter on the top.
Fun for me again this coming Monday morning!
Any help is appreciated.

**Synthohol** · 10-22-2017

the TCR adjustment is only for after fresh developer is installed. the exact TCR is what it calibrates off of.
once toner is allowed to enter the DV the reading is screwed up.

if 46 was the original # i would set it back to that manually.

**Woxner** · 10-23-2017

35 to 46 is fine for the set up 107 is way too high. may be a bad tcr sensor. but best to start with new dev when doing tcr. i have done it at other times and it will work as long as it set at the lower numbers.

**ROP84** · 10-23-2017

Thanks for the feedback. Can you please explain the procedure for manually adjusting the TCR setting from 107 back down to 46. I have done that
on the bizhub 200/250/350 series but could not figure out how to do it on the 500. Would like to try that first before I dump another $80 bag of toner in the dv and start over.
Appreciate the help.