On off missing color for Xerox 700i

[hadi]

I encounter printing problem on Xerox 700i. Printing black color some time appear some times not appear or blank. I tried print full black several sheets then the result some sheets blank / no black color, some sheets appear good solid black color, some sheet partial black and blank in one sheet. Is there any body facing the problem? I really need the advise what is the cause of this problem, please.

 

[Possumgal]

My guess would be the black drum. Even if yours is fairly new, it could be defective.

 

[hadi]

My guess would be the black drum. Even if yours is fairly new, it could be defective.

Thanks for the input, I am going to order the black drum

 

[hadi]

I have replaced drum, HVPS, and also developer. The problem still same, no black color appear especially on the front side paper. Any body similar problem & what is the effective action taken/

 

[Stickman42]

Does this happen with different types of paper?

 

[hadi]

Does this happen with different types of paper?

It happens on all types of papers

 

[hadi]

The root cause has been identified.!It was caused by intermittent failure of solenoid driver of K developer spin. The solenoid has been replaced and problem was solved.