FujiXerox DocuCentre-III C7600 (Printer cant detect % darkness)

[ConfusedWolf]

Hi,

I'm having trouble with the machine detecting percentages of Black. K100%, K70% and K50 look exactly like 100% black. This happened after i changed a new drum. However the older drum does not have this issue. Could it be the setting? Anyone have clue for this issue? Thanks

[GabiE-Xerox · Accepted solution]

Hi,

It is not from settings. I think it is from the new drum.

Gabi

[ConfusedWolf]

Hi Gabi,
Which mean the drum is defected?
So the drum can't be used anymore?

[ConfusedWolf]

HI Gabi,

I bought a new drum, replaced. The % darkness is correct now. But however the missing area is back agian with the new drum. could it be the ROS agian? i just printed 50 pages and the missing area is back agian. I have have cleaned 2 times (using the method the video you shown me) but the problem is back afte 50 pages print. Do you know what is wrong with the machine?

[GabiE-Xerox]

Hi,

It could be from the used black developer housing which let the toner to blow towards laser. 

[ConfusedWolf]

Hi Gabi,

Do you mean this part? 

I noticed everytime i printed 50 pages, there will be accumlated toner on top.

How should i fix the blowing part towards the laser ?

[GabiE-Xerox]

You can fix it by replacing the black developer housing together with black developer material.

[ConfusedWolf]

Hi Gabi,
Once again thank you so much for taking so much time to resolve my issue. replying to me at 4AM. very appreciated for your time.
Right now i don't have a new black developer housing unit. I've ordered, will update you. :) thanks so much