Black color problem

[Rohullah]

Hi everyone
Still I have a problem with konica C6500
The black output is gray
I have cleaned Dv and charged new Dv powder
Toner density sensor int...
Auto Gamma adjustment
Printer offset gamma adjustment
I/O check 54 09 is about 150
Toner is in Dv
But still not work, no error no signal

Thank you in advance
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[tulintron]

Re: Black color problem

Within Process Adjustment, run Recall Standard Data for Factory Default.


Then perform developer change procedure as technical manual.


But according to the first image, the machine is ok. The problem seems to be the IC. Your controller must be out of calibration, with a corrupted profile or some bad contact. Operating system may be corrupted and formatting required.

[Rohullah]

Re: Black color problem

Within Process Adjustment, run Recall Standard Data for Factory Default.


Then perform developer change procedure as technical manual.


But according to the first image, the machine is ok. The problem seems to be the IC. Your controller must be out of calibration, with a corrupted profile or some bad contact. Operating system may be corrupted and formatting required.

Thank you
tulintron
I have runed factory reset, i will check calibration and color profile

[Synthohol]

Re: Black color problem

on the first pattern black is mint.
IIRC what you circled is process/composite black.
do the visual adjustments to adjust for composite gray.