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?

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[copyman]

Re: C224 problem after replacing drum

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]

Re: C224 problem after replacing drum

Where the same lines there before replacing drum?

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

Different lines before replacement.

Genuine drum was put in.



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[mo0651]

Re: C224 problem after replacing drum

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

[allan]

Re: C224 problem after replacing drum

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]

Re: C224 problem after replacing drum

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]

Re: C224 problem after replacing drum

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]

Re: C224 problem after replacing drum

So its not done 200K yet?

[tsbservice]

Re: C224 problem after replacing drum

So its not done 200K yet?

Well, atleast if TC it's not over million
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]

Re: C224 problem after replacing drum

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.