C454e Light Copies, prints are fine

[mrfuser]

Ok, cleaned white strip, replaced IU and DV assembly. Still copies very light. Not much difference in changing to different original settings.

Any ideas?

K

[Ziggy]

Re: C454e Light Copies, prints are fine

Ok, cleaned white strip, replaced IU and DV assembly. Still copies very light. Not much difference in changing to different original settings.

Any ideas?

K

If prints look good and the internal demo page is good then there is nothing wrong with Print head(laser) IU or DV assembly. When is the last time you cleaned the optics and both sides of the glass?

[mrfuser]

[/QUOTE]

[Ziggy]

Re: C454e Light Copies, prints are fine

[/QUOTE]


What about the mirrors?

[mrfuser]

Re: C454e Light Copies, prints are fine

Yep mirrors also. All optics cleaned


What about the mirrors?[/QUOTE]

[Ziggy]

Re: C454e Light Copies, prints are fine

Yep mirrors also. All optics cleaned


What about the mirrors?

[/QUOTE]

If all optics clean and internal prints and print jobs look good you might have a bad ccd

[femaster]

Re: C454e Light Copies, prints are fine

I hate to ask the obvious, but have you run the gradation adjustments? Prints can look good and copies can look like crap if these get out of wack.

You generally don't see that big of an issue with these models needing gradation run all that often. The ones we always had trouble with were the C227/C287, which would need to have the gradation run quite frequently to keep the copy and print quality looking good.

[tsbservice]

Re: C454e Light Copies, prints are fine

I hate to ask the obvious, but have you run the gradation adjustments? Prints can look good and copies can look like crap if these get out of wack.

You generally don't see that big of an issue with these models needing gradation run all that often. The ones we always had trouble with were the C227/C287, which would need to have the gradation run quite frequently to keep the copy and print quality looking good.

Agree plus black & white bizhub 227/287/367.

[mrfuser]

Re: C454e Light Copies, prints are fine

Swapped ccd and still poor. Ran gradation in service mode and in admin mode.
head scratcher this is

[mrfuser]

Re: C454e Light Copies, prints are fine

Ok replaced black drum and quality came back perfect for about 20 pages. Then started fading again!

any other ideas?

[mrfuser]

Re: C454e Light Copies, prints are fine

Ok replaced lamp assembly and ccd and black dv assembly, transfer belt and drum. Print is always great. If we scan letter R and have it rotate to letter it prints fine but if we scan letter to letter it is faded on non op side! This is really nuts! Anyone ever seen this??

[tsbservice]

Re: C454e Light Copies, prints are fine

Clean Poly mirror.

[mrfuser]

Re: C454e Light Copies, prints are fine

remove the entire laser assembly?



QUOTE=tsbservice;2237452]Clean Poly mirror.[/QUOTE]

[copyman]

Re: C454e Light Copies, prints are fine

If prints are fine then you can rule out the laser. Just to be clear is light quality the same copying through feeder and if you place original on glass?

[mrfuser]

Re: C454e Light Copies, prints are fine

yes same

QUOTE=copyman;2237542]If prints are fine then you can rule out the laser. Just to be clear is light quality the same copying through feeder and if you place original on glass?[/QUOTE]