Where can I get instructions on how to replace the transfer unit of my Bizhub C252?

Question edited for clarity.
Question moved from MISC.

lots of videos and info,

https://www.google.com/search?q=Konica+Minolta+Bizhub+C252+-+Copier.+It+displays+a+message+%27replace+fuser+unit%27+and+%27replace+transfer+unit%27.

..

Clean IDC sensors that read toner density on transfer belt.
And do Image stabilise reset.

If that doesn't help then:

If Imaging units are over life -replace them if Transfer belt is over life replace it.

Konica Minolta BizHub C252 Repair Questions,... - Fixya

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How to clean the drums/i units on the konica minolta number ...

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https://www.youtube.com/watch?v=eD8HdNq0MlE
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How to clean the drums/i units on the konica minolta number plate printer ... Fix or repair color laser printer with fading, lightprint, or lines samsung clp 300 ... Imaging Unit Reset for Konica Minolta Bizhub C203 / C253 / C353

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push down, slide out, pull tapes and fixtures off new unit(s) and replace. These IU's have chips in them to keep track of life. Another option instead of replacing the unit is to buy just the chip and replace it on the old image unit. This depends on the condition of the existing unit(s).

Possibly a dirty main charge wire on the black drum unit. Open the front door and locate a small light blue knob on the black drum unit. If you you pull that knob in and out of the drum unit it will clean the charge wire. If this doesn't you may hve to replace the drum unit.

replace it yes

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

the transfer unit transfers the image off the drums to the paper

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

open right door, remove 2 lock screws and pull out the tbu

whY?

its not so hard, open side door, remove 2 screws, and pull out the transfer unit gently. and reinstall new TBU. BE VERY CAREFUL WITH NEW UNIT, DO NOT DAMAGE IT.