TASKalfa xx52/xx53 series light banding in feed direction

[Stooey1871]

Hi Guys,

Hopefully a qucik one...

Have seen this a bit on the 52 and 53 series TASKalfa's, but am struggling to find a solution.

We have tried drum, dev and transfer swap outs to no avail. It seems once the device is about 2-3 years old this occurs.

Has any one come across this phenomenon?? It looks like a mag roller ribbing or some type of jitter.

Any thoughts much appreciated!

Sample.jpg

[sparkycivic]

Re: TASKalfa xx52/xx53 series light banding in feed direction

Are we talking about the black pattern page or the color belt behind it?

[BillyCarpenter]

Re: TASKalfa xx52/xx53 series light banding in feed direction

All I see is black background on the color page. Looks like the belt isn't cleaning properly. What do the individual color pages look like?

[Stooey1871]

Re: TASKalfa xx52/xx53 series light banding in feed direction

sample2.jpg
Its hard to photograph.

If you look at the BW chart and the full bleed cyan patch, in this picture you can see light banding, lines, in the vertical direction.

[PrintWhisperer]

Re: TASKalfa xx52/xx53 series light banding in feed direction

I think you mean the cross feed bands which show up in the sample BK halftones and somewhat in the Cyan 100% fill band in ~2mm increments.

I see them quite often in older machines as well. I attribute it to gear wear in the Main Drive Pack, producing drive jitter (gear lash play) when as you say, DV replacement doesn't resolve it.

[Stooey1871]

Re: TASKalfa xx52/xx53 series light banding in feed direction

I think you mean the cross feed bands which show up in the sample BK halftones and somewhat in the Cyan 100% fill band in ~2mm increments.

I see them quite often in older machines as well. I attribute it to gear wear in the Main Drive Pack, producing drive jitter (gear lash play) when as you say, DV replacement doesn't resolve it.

This is where my thinking is going too, in the process of swapping out the drive with a new one to test this theory, THX

[Stooey1871]

Re: TASKalfa xx52/xx53 series light banding in feed direction

So; to end this thread...

Here is a reply from Kyocera Tech Support



Seems there is no fix for this

[subaro]

Re: TASKalfa xx52/xx53 series light banding in feed direction

This is where my thinking is going too, in the process of swapping out the drive with a new one to test this theory, THX

Nope. Cause if you put in a new PM kit in there those lines would not be there. You said you swapped drum and dev, did you mean you installed new one. ??

[Stooey1871]

Re: TASKalfa xx52/xx53 series light banding in feed direction

Nope. Cause if you put in a new PM kit in there those lines would not be there. You said you swapped drum and dev, did you mean you installed new one. ??

Yes, we recently put in Maint A/B and a new drive in 5053 and still has the same issue, with general office printing the PCQ is still OK. Just a shame that it cant be fixed!!

[BillyCarpenter]

Re: TASKalfa xx52/xx53 series light banding in feed direction

Smart money says to listen to Print Whisperer.

[Stooey1871]

Re: TASKalfa xx52/xx53 series light banding in feed direction

Smart money says to listen to Print Whisperer.

Noted.

However, the main drive replacement yielded no change in the printed result sadly

[BillyCarpenter]

Re: TASKalfa xx52/xx53 series light banding in feed direction

Noted.

However, the main drive replacement yielded no change in the printed result sadly

In your previous post, you said there is no fix to this problem. I don't accept that. There's a fix to every problem.

[KYO_OEM]

Re: TASKalfa xx52/xx53 series light banding in feed direction

i don`t think that new drive unit will be helpfull.
I could see "jitter" in the picture.
take care for the attachment.
It shows the dv drive changes from new iris series to the older ones.
Maybe the drive gears for the dv units needs to be replaced in your case.
The gears are not components from the dr unit!
You has to disassemble the dr unit if you wants to remove the gears.

[KYO_OEM]

Re: TASKalfa xx52/xx53 series light banding in feed direction

additional you get a picture from broken gear

[fishleg]

Re: TASKalfa xx52/xx53 series light banding in feed direction

I see this a lot 52 53 series 54 series halftones are a lot better in my opinion.

I'd also love to know of a fix it's definitely Dev unit related. I think it's to do with the sleeve rollar on the Dev units. I think it's just the way they are and you are seeing the AC charge pattern it applies to that sleeve rollar.

It's there from new but as they get to 300k it becomes very apparent if you do solid half tones. Usually for me after replacing Dev units it's not noticeable for another few hundred k.