light copy for mp2852

[en.]

hi every one

problem with mp2852 its give me light copy from scanner(ardf+expose class) and when i print from pc the qulity is good

i clean all mirror and replace all pcu and problem is still

just from copy is light

best regards

[LNorris]

Re: light copy for mp2852

how many copies on the pcu?

[Gary Bowen]

Re: light copy for mp2852

I believe he said he replaced the PCU and cleaned the Optics. What "Original" setting is being used for exposure - Text, Photo, Text/Photo? Has the setting for Auto Exposure been changed - on the screen or in SP Mode? Also check the "Birth Certificate" for any settings that somebody might have changed. Are test prints OK as well?

[en.]

Re: light copy for mp2852

yes .... printer test is ok ...just from copy is light

[tonnerboy]

Re: light copy for mp2852

Has the setting for Auto Exposure been changed - on the screen or in SP Mode?

Hi.

Can you please give some info about this? What can we do with it?

Thanks

[logrady2331]

Re: light copy for mp2852

The scanner assembly itself could be bent down (or up) where the bracket mounts to the machine. It would more than likely be darker (or lighter) on the top (or bottom) of the copy but it's worth a shot.

[tufbnme]

Re: light copy for mp2852

There has been MANY posts on this issue and I have experienced it as well. My issue was repaired by replacing the laser unit.

[Debs1964]

Re: light copy for mp2852

Try doing a memory clear on copier application ONLY

[Iowatech]

Re: light copy for mp2852

Used to be a dirty or damaged white reference strip in the optics cavity could cause this, the machine will automatically adjust exposure lighter to compensate.
Funny thing about that, the white reference strip gets contaminated so slowly that many people would subconsciously excuse that for quite a while. Then one day they would compare a print to a copy, and say "Yuck! This copy is awful!".
Also I have tweaked the scanner manual gamma settings for problems like this, but I am not trained on this machine so I don't know if that adjustment is available.