MP C2003 Black does not dolid image

[PA3040]

DearAll
We have MP C2003 ( Metis yz) machine, it does not properly transfer black image and text ( no solid black).
we sow using magnifier glass then we can see that some dots does not transfer to the paper. we does not see this issue for other colors


Copy volume 3752
Driver used PLC6 and 5
Papers= any papers has this issue

we checked K image transfer roller ...no issue
Please advice

[Cipher]

Re: MP C2003 Black does not dolid image

Off the top of my head.

1. Check the transfer unit lever is fully engaged in the down position.
2. Check the paper weight/thickness is correctly specified on the MFD and print driver for the paper being used.

Thin (52 to 59 g/m2)
Plain (60 to 81 g/m2)
Middle Thick (82 to 105g/m2)
Thick 1 (106 to 169 g/m2)
Thick 2 (170 to 220 g/m2)
Thick 3 (221 to 256 g/m2)

[slimslob]

Re: MP C2003 Black does not dolid image

If this is only in copy and not in printing, run Auto Color Calibration.

[PA3040]

Re: MP C2003 Black does not dolid image

Off the top of my head.

1. Check the transfer unit lever is fully engaged in the down position.
2. Check the paper weight/thickness is correctly specified on the MFD and print driver for the paper being used.

Dear Cipher,
Thanks for the reply

We used correct paper type and also we checked the image transfer lever for black, which is correctly located and we make some changes manually by applying force to the lever,but it not helped. we further observed that this issue heavily affected for black text and adages
Please advice

[Imprestik]

Re: MP C2003 Black does not dolid image

Are the copies washed out on the black only?

Has someone recently replaced the Black PCU?

I bet you the earth plate on the back of the PCU is missing

[PA3040]

Re: MP C2003 Black does not dolid image

Are the copies washed out on the black only?

Has someone recently replaced the Black PCU?

I bet you the earth plate on the back of the PCU is missing

444973]Are the copies washed out on the black only?

Yes only black

Has someone recently replaced the Black PCU?

No, This is new machine copy volume less than 4000

I bet you the earth plate on the back of the PCU is missing

I will check this and update but I assume it is impossible sine this is brad new machine


Please advice

[PA3040]

Re: MP C2003 Black does not dolid image

If this is only in copy and not in printing, run Auto Color Calibration.

This is happening printing too

[Cipher]

Re: MP C2003 Black does not dolid image

Have you a sample that shows the issue clearly that you can post?

[PA3040]

Re: MP C2003 Black does not dolid image

metis.jpg

Have you a sample that shows the issue clearly that you can post?

Dear Cipher,
Thanks for the reply




For better view please download the image and enlarge, then you can see black wash out of the text
Please advice

[Cipher]

Re: MP C2003 Black does not dolid image

Looks like insufficient fusing / the toner is lifting back off the paper.

You could confirm that by stopping the machine when it's printing just before or as the paper enters the fuser.
If the text is solid on the paper BEFORE fusing then that's where the problem is.
WARNING: Stopping the machine during printing could damage the fuser belt, probably won't, but it could.

Also is that paper going though the machine with that raised logo in the corner?

The text does looks a little more solid once it has passed the logo towards the trailing edge.
I'm wondering if that raised logo is making the fusing pressure / nip uneven.

It's hard to see (as could just be JPEG artifact background noise) but the grain of the paper looks pretty rough too, that could also effect fusing / bonding.

Have you tried printing on short edge feed?
Have you tried a different type / brand of paper?

[PA3040]

Re: MP C2003 Black does not dolid image

Looks like insufficient fusing / the toner is lifting back off the paper.

You could confirm that by stopping the machine when it's printing just before or as the paper enters the fuser.
If the text is solid on the paper BEFORE fusing then that's where the problem is.
WARNING: Stopping the machine during printing could damage the fuser belt, probably won't, but it could.

Also is that paper going though the machine with that raised logo in the corner?

The text does looks a little more solid once it has passed the logo towards the trailing edge.
I'm wondering if that raised logo is making the fusing pressure / nip uneven.

It's hard to see (as could just be JPEG artifact background noise) but the grain of the paper looks pretty rough too, that could also effect fusing / bonding.

Have you tried printing on short edge feed?
Have you tried a different type / brand of paper?

Dear Cipher,

It is really really thanks for very logical and informative reply and please give me five hours to check the points that you pointed out

Also is that paper going though the machine with that raised logo in the corner?

Yes. the above printout paper fully out via fusing
We very carefully observed that the logo( above image ) and some four color areas does not affected with this problem and we further observed that this issue heavenly effected for text and edges of the all of rectangle type images

Is it possible toner lifting back only for text area?( I think possible... please give me five Hours to confirm )

Thanks in advance.

[PA3040]

Re: MP C2003 Black does not dolid image

Looks like insufficient fusing / the toner is lifting back off the paper.

You could confirm that by stopping the machine when it's printing just before or as the paper enters the fuser.
If the text is solid on the paper BEFORE fusing then that's where the problem is.
WARNING: Stopping the machine during printing could damage the fuser belt, probably won't, but it could.

Also is that paper going though the machine with that raised logo in the corner?

The text does looks a little more solid once it has passed the logo towards the trailing edge.
I'm wondering if that raised logo is making the fusing pressure / nip uneven.

It's hard to see (as could just be JPEG artifact background noise) but the grain of the paper looks pretty rough too, that could also effect fusing / bonding.

Have you tried printing on short edge feed?
Have you tried a different type / brand of paper?

Dear Cipher
Sorry for the late update
Please see the attached for just before enter the Fuser (Paper type 60 - 81 g/m2)
2014-11-13 18.17.48.jpg

Please see the attached for just before enter the Fuser (Paper type 221 - 256 g/m2)

2014-11-13 18.18.11.jpg

This is the image we can see on the ITB

2014-11-13 18.26.26.jpg

Following image you could see unnecessary yellow pattern, which is we should not know what
2014-11-13 18.30.28.jpg

Please advice

[Cipher]

Re: MP C2003 Black does not dolid image

Hmmm strange.

That yellow pattern is far to precise.
It looks a bit like a copy protection pattern or some kind of identification marker.

I'm starting to think this problem could be some kind of image processing fault.

If you have a PS3 option handy it might be worth trying that.

[SargeNZ]

Re: MP C2003 Black does not dolid image

The yellow dots are the stenography patterns. Don't worry about them.

[PA3040]

Re: MP C2003 Black does not dolid image

The yellow dots are the stenography patterns. Don't worry about them.

Dear Sarge,

Thanks for the valuable reply and It could be much appreciated if you can explain more about "stenography Pattens" which will help to update our knowledge and could you have idea about main issue?

Thanks in advance