C224 QUALITY PROBLEM

[karim-tech]

hey every body some help plz

i have a quality problem with a KM c 224

for the test pattern shown in the first picture is with 2 level

the first 4 colors wirth the 255

and the second with 100

the problem is too light in the side with the red circl for the 4 colors

i have changed the transfert belt the fusing unit also the k DRUM but problem persisted

12814053_904943986288950_17618109695856221_n.jpg

1915275_904943929622289_2789824715439641008_n.jpg

[EarthKmTech]

Re: C224 QUALITY PROBLEM

since its all 4 colours I'd be looking at the second transfer roller first of all, is it pressing properly against the belt ?

Have you stopped the machine mid paper feed to see if the image is formed perfectly on the belt ? if it is, you can be assured its a second transfer issue.

[karim-tech]

Re: C224 QUALITY PROBLEM

since its all 4 colours I'd be looking at the second transfer roller first of all, is it pressing properly against the belt ?

Have you stopped the machine mid paper feed to see if the image is formed perfectly on the belt ? if it is, you can be assured its a second transfer issue.

thx
EarthKmTech
for the replay

i have changed the second transfert also and the problem persiste
i stopped the machine to creat a missfeed paper to check out the latent image created on the transfert belt and the image was with the same problem


thanx again

[Copier Addict]

Re: C224 QUALITY PROBLEM

thx
EarthKmTech
for the replay

i have changed the second transfert also and the problem persiste
i stopped the machine to creat a missfeed paper to check out the latent image created on the transfert belt and the image was with the same problem


thanx again

Did you clean the printheads?

[karim-tech]

Re: C224 QUALITY PROBLEM

Did you clean the printheads?

thx for the replay

yes i did for the 4 printheads

let me tell you that the problem is in the 4 test colors

if it was the printheads maybe will be just in one color

thax again
best regards

[emujo]

Re: C224 QUALITY PROBLEM

Have you double checked to ensure the shipping locks were removed from both sides of the X-fer roller? I've seen this bite more than a few techs thinking that since the string came out, the lock must be out also. If the image is being laid on the xfer belt the same way, then the issue has to be related to the print head, or x-fer belt. Emujo

[kingarthur]

Re: C224 QUALITY PROBLEM

is the m/c level...

[allan]

Re: C224 QUALITY PROBLEM

I have a similar problem on a C280 all seems fine second transfer and ITB replaced the machine is level the drums and DEV unit are all good. I changed the paper to SEF and the call is gone for months already.

Have you tried adjusting the transfer currents??

[mo0651]

Re: C224 QUALITY PROBLEM

We had a c454 non e model with a similar quality issue. We had a bad printhead.

[allan]

Re: C224 QUALITY PROBLEM

That is one of the few things i did not change?? I will try that when the call comes back...

[gordonu10]

Re: C224 QUALITY PROBLEM

Have you tried cleaning the IDC sensors under the transfer belt?

[Elmo]

Re: C224 QUALITY PROBLEM

what copy count have the developers done
have you tested a different developer unit
from the comparison pics all pages looks weak not just the edge

[Synthohol]

Re: C224 QUALITY PROBLEM

I've seen similar issues when the floor tilts the copier towards the wall so all the DV bulk is in the middle to rear.
Put a level on the platen glass and see if it's off kilter.

[DelawareJim]

Re: C224 QUALITY PROBLEM

Check the 2nd transfer assembly housing. In perticular, the 4 springs and 2 tabs that hold it onto the frame. Simply remove the whole assembly and reinstall making certain that the 2 tabs and all 4 springs go where they are supposed to go.