C224 problem after replacing drum

[darkocg88]

This is how print looks after replacing the K drum.

Any idea what's the reason for these stripes?https://uploads.tapatalk-cdn.com/20190514/56aecd2db22b58283c4cd4d91c6edfb8.jpg

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[copyman]

Where the same lines there before replacing drum?

Did you use a new "Genuine" OEM drum? Still looks like a bad K drum

Clean laser print heads with wand on front door? And coronas with white rods you pull out and in on each drum unit?

[darkocg88]

Where the same lines there before replacing drum?

Did you use a new "Genuine" OEM drum? Still looks like a bad K drumDifferent lines before replacement.

Genuine drum was put in.



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[mo0651]

Really?? Lines go clear to the edge. Transfer belt, fuser. Stop test.:confused:

[allan]

Swap it out with the yellow drum just change the chips over. If the corner of the chip breaks out its still ok just glue it back.
More likely to be a dev/toner buildup on the dev tank.
Had faulty new drums before but very rare.

Remove and inspect the dev tank.

[darkocg88]

Swap it out with the yellow drum just change the chips over. If the corner of the chip breaks out its still ok just glue it back.
More likely to be a dev/toner buildup on the dev tank.
Had faulty new drums before but very rare.

Remove and inspect the dev tank.Thanks, that was my doubt as well. Dev.

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[allan]

Thanks, that was my doubt as well. Dev.

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If its over or close to 300K then its done its work replace it.
Its quick to pull out the tank and check it, have you done that?

[allan]

So its not done 200K yet?

[tsbservice]

So its not done 200K yet?
Well, atleast if TC it's not over million :D
Might be, but more likely it's under 200k little early for developer.
Agree, do some crash stop testing will help to determine the problem between TBU and IU(drum+dev).

[copier tech]

If you want an accurate answer post 4x gradation prints this will give us more info to go on.

If the laser (print head) was dirty you would have white lines/deletions.

Developer unit will not produce thin black lines as per your print sample.

Silly question (seen it many times) are you sure you fitted a NEW black image unit?

If you have 100 % fitted a new K IU the issue is with the transfer unit.