Konica C220 print quality problem

[ferro10]

Hello everybody A customer reports quality problems printing on black. He says that wavy print (see file)
In My opinion The Problem is the BK Development Group.

Do you have other ideas?4974049741

[Synthohol]

needs a new black DV unit.

[tsbservice]

K developer unit almost developer empty.

[mandongo]

Black developing unit 100%.
I had the same issue. After replacing it everything was ok.

[femaster]

Just to add yet another +1 for the K dev unit. Make sure K drum isn't over life as well, replace if it is.

[ferro10]

thank you all

ok then I replace K dev unit

[avecosat]

Also check the clutch of the dev unit K A0EDM20000

[ferro10]

replaced Dev BK now everything works regularly

thank you all

[copyman]

replaced Dev BK now everything works regularly

thank you all

Like other poster mentioned replace black drum as well or you will be back there when the developer dumps again from over life drum shorting out.

A lot of posts on this forum about "4 series dumping developer

[ferro10]

Like other poster mentioned replace black drum as well or you will be back there when the developer dumps again from over life drum shorting out.

A lot of posts on this forum about "4 series dumping developer

For 4-5 days the printer worked regularly.
now the same problem has been presented

Now I try to change only the drum bk? or I have to change the dev bk again together with the drum?

PS: Can it be a toner hopper problem that does not download toner inside the dev bk?

[femaster]

You will need to do both, including K dev unit. Replacing just the K drum won't get your developer back, which is now sitting in your waste toner box, along with the developer from the last dev unit.

[avecosat]

Is the clutch ,I have had the same problem a couple of times

[ferro10]

Is the clutch ,I have had the same problem a couple of times


What clutch are you talking about?

[Zesti]

Which toner are you using? sometimes bad toner also causes developer going in waste. How did you change dv only unit comes as whole... with drum.

[ferro10]

Which toner are you using? sometimes bad toner also causes developer going in waste. How did you change dv only unit comes as whole... with drum.

The black toner is original

[avecosat]

What clutch are you talking about?

Is the figure 20 MAIN DRIVE SECTION in parts manual ref : A0EDM20000 .

Look in the manual pag 126 5.5.73 Developing clucth K CL6 for how to remove it .

[ferro10]

Is the figure 20 MAIN DRIVE SECTION in parts manual ref : A0EDM20000 .

Look in the manual pag 126 5.5.73 Developing clucth K CL6 for how to remove it .

OK thank

In your case you had to replace the dev bk too? In addition to the clutch

[Todd Glenn]

Check to see if the K developer unit is turning, if its packed full of toner clear to the top, its usually a sign its not, and that clutch mentioned is bad. If you run with the cover open, and place your fingers on the k developer, should feel some vibration if the auger is turning.

[femaster]

How did you change dv only unit comes as whole... with drum.

C220 has separate dev and drum.

[avecosat]

OK thank

In your case you had to replace the dev bk too? In addition to the clutch


Yes because the developer is gone

[thanakon1995]

Consumable!!!
49809

[Zesti]

C220 has separate dev and drum.
My BAD.....:rolleyes::rolleyes::rolleyes:

[ferro10]

I updated this discussion

Replacing the CL6 + Developer BK everything works regularly

[allan]

Did any one mention its the DV311K?