Konica 7222 printing blur when power on

[KM7155]

Hi Guys,

good day to all.
i have a 7222 print out very blur only when the machine start up early in the morning.
the print out will become normal after around 10 copies.
i have try to change the t/s block, the high voltage casing (at the ADU door), but the
problem still remain, something wrong with the transfer charges.

any help will be appreciated.

[cycle66]

Re: Konica 7222 printing blur when power on

Hi Guys,

good day to all.
i have a 7222 print out very blur only when the machine start up early in the morning.
the print out will become normal after around 10 copies.
i have try to change the t/s block, the high voltage casing (at the ADU door), but the
problem still remain, something wrong with the transfer charges.

any help will be appreciated.

Have you considered the paper picking up moisture over night and when you get farther down into the stack you are using paper not exposed to moisture? Just something to consider.

[Luther]

Re: Konica 7222 printing blur when power on

This usually happens in high humidity environments ,or the ozone filter are dirty, remove or clean the ozone filters

[Flash]

Re: Konica 7222 printing blur when power on

Cleaning the drum with alcohol also helps.

[cycle66]

Re: Konica 7222 printing blur when power on

I've had a similar problem with a 7145 in a correctional facility where cleaning the drum with alcohal would help short term. Replacing the drum and blade fixed it. Have you tried new paper to rule out moisture in it?

[EarthKmTech]

Re: Konica 7222 printing blur when power on

theres a cooling fan next to the ph unit and it has a filter on it that gets clogged, check this also.

[barratec]

Re: Konica 7222 printing blur when power on

Repalcing the drum i've solved something similar.

[KM7155]

Re: Konica 7222 printing blur when power on

Thanks guys for the inputs.
Yes, this machine is in very high humidity environment.
i will try to clear the filter first, btw, may i know where is the ozone filter located?
is it at the back of the machine?
i have rule out paper moisture as the culprit.

[Flash]

Re: Konica 7222 printing blur when power on

There is one on the left side of the machine. If it has a finisher you need to slide it out enough to access it.

[Luther]

Re: Konica 7222 printing blur when power on

there is ne above the bypass its for the optics, i usually just removed them

[wiliamsclarken]

Re: Konica 7222 printing blur when power on

3D printing has become very popular and many people are showing interest to do 3D printing by their own.

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