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mjmjross
02-18-2021, 05:22 PM
Hey all,

Last week I replaced the black drum on an 808 and after gradation, the counter didn't reset. It showed "Stabilizing" once I closed the door (like normal) but never went back to 100%. I wrote it off to "whatever". Then yesterday I replaced the black drum on a C759 and ran into the same thing. Both were replaced because of imaging issues. Now I'm thinking it's something I might be missing.

Anyone else?

Ideas?

Thanks!

copier tech
02-18-2021, 07:02 PM
Hey all,

Last week I replaced the black drum on an 808 and after gradation, the counter didn't reset. It showed "Stabilizing" once I closed the door (like normal) but never went back to 100%. I wrote it off to "whatever". Then yesterday I replaced the black drum on a C759 and ran into the same thing. Both were replaced because of imaging issues. Now I'm thinking it's something I might be missing.

Anyone else?

Ideas?

Thanks!

What drum are you fitting to the 759?

& what model is an 808 ?

tsbservice
02-18-2021, 07:08 PM
bizhub 808 is from 758-808-958 family. As for not resetting life counts maybe drum has bad chip.

Edit:
Also check for bent pins inside machine may not read correctly new chip.

WLIT
02-18-2021, 09:28 PM
Also, don't forget to press Start after you have completed gradation. In Service Mode it says this in the black box right above where you hit Gradation. Easy to overlook this.

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