Konica Minolta Bizhub Press C7000 streaks stripes uneven prints

[Honpress]

Hello!

First time that I'm placing a post. I think there's a lot of good information on these forums.

I'm having a problem (more than one) on my printer C7000. I've added pictures that I printed on mine machine. It is bit difficult to capture it right!
Basically there are a lot of stripes/streaks in every color. I don't know which parts causes this exactly.
I'm thinking about the drums, developers or maybe even the transfer belt??

f18b020a3e41662e0c4c240892e01e8e.jpgfctest.jpg

I don't want to buy new parts, before I know exactly which ones needs to be replaced.
Main reason why we replace or parts is because it saves us a lot of money. It have been some difficult times sadly.

I hope you guys can help me out!

Sincerely,
Ilse

[Toxic]

Re: Konica Minolta Bizhub Press C7000 streaks stripes uneven prints

What is current parts life for drum, developer, charge units...?
Total bw and color counter?
You should print separately halftone color patterns for CMYK and see what color is affected.
On the first look that could be charge unit problem.

[Honpress]

Re: Konica Minolta Bizhub Press C7000 streaks stripes uneven prints

Thank you for your reply!

I've printed a list (management list) which tells me the counts of the developers, drums, transfer belt and coronas.

BW count is 470.303
FC count is 2.717.872

Developer count: Cyan/Magenta/Yellow are 128% - Black is 206%
Drum count: Cyan/Magenta/Yellow are 195% - Black is 227%
Transfer belt count 242%
Charging corona count: Cyan/Magenta/Yellow are 306% - Black is 401%

They all should be probably maximum 100%, correct? It's only this year the prints started to look bad. Most parts haven't been replaced since 2018/2019.

list.jpg

[Phil B.]

Re: Konica Minolta Bizhub Press C7000 streaks stripes uneven prints

Thank you for your reply!

I've printed a list (management list) which tells me the counts of the developers, drums, transfer belt and coronas.

BW count is 470.303
FC count is 2.717.872

Developer count: Cyan/Magenta/Yellow are 128% - Black is 206%
Drum count: Cyan/Magenta/Yellow are 195% - Black is 227%
Transfer belt count 242%
Charging corona count: Cyan/Magenta/Yellow are 306% - Black is 401%

They all should be probably maximum 100%, correct? It's only this year the prints started to look bad. Most parts haven't been replaced since 2018/2019.

[ATTACH=CONFIG]57635[/ATTACH]

all those parts over 100%
should be replaced.

[Honpress]

Re: Konica Minolta Bizhub Press C7000 streaks stripes uneven prints

Yeah, thought so. Thanks for your reply.

Another question, don't know I have may ask in this post or I should post a new one. Otherwise please tell me

Do you know if the developer for the C7000 is the same as the C6000 and C6500? Because when I look for the part numbers I also get the ones compatible for those older machines.
I want to order all the parts from china, but because it's a lot I need, I want to make sure I have the right ones.
We've already replaced some things on the machine (also ordered from Alibaba), so we think we should be able to do these replacements as well.

Do you have any experience with this?

[tulintron]

Re: Konica Minolta Bizhub Press C7000 streaks stripes uneven prints

Developers are the same
the drums are the same
The coronas of the C7000 have a small difference, but the C6500 fit
transferbelt is the same
Belt of Fusao is the same
Fusion Pressure Roller is the same


And many other parts are the same