Bzzhub c452 baclk IU or Transfer belt?

[Desert Rat]

Re: Bzzhub c452 baclk IU or Transfer belt?

Markrich130,
Thank you for that post. I just sold a BHC452 a month before this post.
Does this happen on all BHC452?

DR

Re: Bzzhub c452 baclk IU or Transfer belt?

The transfer roller voltages have been revised by Konica Minolta through special firmware for this issue.
A new transfer roller may help resolve the issue, sometimes only for about a month. The special firmware version is GCJ.

[konica7022]

Re: Bzzhub c452 baclk IU or Transfer belt?

Yes it is the Transfer Belt, i pulled it out and checked several times and once found the exect same stains/patterns on TB

i have asked the dealer to replace it.

hopefully he will replace or i will change the cleaning blade for the TB

ok i got the replaced TB which is not in that good condition but the machine is now working fine

those patterns are gone now
thanks for all those who replied and who watched as well

[konica7022]

Re: Bzzhub c452 baclk IU or Transfer belt?

Yes it is the Transfer Belt, i pulled it out and checked several times and once found the exect same stains/patterns on TB

i have asked the dealer to replace it.

hopefully he will replace or i will change the cleaning blade for the TB

[Mitch Barron]

Re: Bzzhub c452 baclk IU or Transfer belt?

I would guess the TR also...hope you get it sorted!

[allan]

Re: Bzzhub c452 baclk IU or Transfer belt?

i don't remember the last time i was able to reuse a dv-612 on a 652 series, they are always visibly worn in the centre by the the time the first drum life is up. I always change the drum and dev a pair now. Some techs/companys may just ignore the poor print quality most noticeable on solid blacks and reuse it but I cannot.

On the other hand the dv-711 on the big 4 series does actually consistantly last life, I dont know what they changed but it made a difference.

Yea, the 4 series is much better i can get up to 1.5M from a tank.

[sauce_boss]

Re: Bzzhub c452 baclk IU or Transfer belt?

It's the transfer roller, replacing it should take care of the issue.

[EarthKmTech]

Re: Bzzhub c452 baclk IU or Transfer belt?

i don't remember the last time i was able to reuse a dv-612 on a 652 series, they are always visibly worn in the centre by the the time the first drum life is up. I always change the drum and dev a pair now. Some techs/companys may just ignore the poor print quality most noticeable on solid blacks and reuse it but I cannot.

On the other hand the dv-711 on the big 4 series does actually consistantly last life, I dont know what they changed but it made a difference.

[Desert Rat]

Re: Bzzhub c452 baclk IU or Transfer belt?

Check the black Developer unit for excessive dusting. Stop the page before it gets to the transfer and check the paper and transfer belt.
I'm thinking that something is getting dusted with toner.

DR

[allan]

Re: Bzzhub c452 baclk IU or Transfer belt?

I would just change the drum if there is nothing visibly wrong with dev tank.

[konica7022]

Re: Bzzhub c452 baclk IU or Transfer belt?

Guys sorry for the late reply




"Try adjusting the Transfer Belt-Cleaning Bias first. positive +5"


where in service mode is it ? how to get there ?






"I just install a new transfer belt when I see that. Its the belt cleaning section."


i was thinking the same so i removed the TB opened it it was filled with toner, cleaned it , closed it and installed back in




It is much much better now but i those spots are still there




there is a ring around the Black Drum(see attached picIMG_20150706_001626.jpg) either the black drum has issue or Drum Cleaning balde/developer




my question should i change the drum alone or change the Entire unit along with developer?

[femaster]

Re: Bzzhub c452 baclk IU or Transfer belt?

How does that work?

How does what work?

[EarthKmTech]

Re: Bzzhub c452 baclk IU or Transfer belt?

I just install a new transfer belt when I see that. Its the belt cleaning section.

[HoonBoy]

Re: Bzzhub c452 baclk IU or Transfer belt?

Try adjusting the Transfer Belt-Cleaning Bias first. positive +5

[hotfuser]

Re: Bzzhub c452 baclk IU or Transfer belt?

Image enhanced and contrast increased for better view

defect is on the upper right side of the paper[ATTACH=CONFIG]29735[/ATTACH]

usually it is the ITB ecspecially if it is only on the first copies.

it is the mylar below the cleaning blade assy that gets damaged.