Printing Quality Issue

[maddy4u]

Please looks in to the attachment & suggest possible remedies

[blackcat4866]

Please looks in to the attachment & suggest possible remedies

It might be pertinent to know what make/model that you are working on.

[maddy4u]

thanks for your reply. its Konica C454e

[Synthohol]

whats the life on the DV unit?
do all colors act the same?
way more info please.

[femaster]

It's hard to say, but it looks like there is Cyan streaking on that magenta print. Might help if you were to post a half-tone from each of the colors. Run then at a reduced setting of like 128 instead of 255.

[tsbservice]

Swap colour drums to see if it makes any difference. We are copier nerds NOT copier gods.
Next time post more than one simple picture.

[copyman]

With the 4 series 99% of the time it comes down to the drum(s) or developer(s) as the issue.

[maddy4u]

Thanks for your reply. yes all colour have issue except yellow. dv unit re manufactured with original developer power. swap drum unit still problem is same

[copyman]

Thanks for your reply. yes all colour have issue except yellow. dv unit re manufactured with original developer power. swap drum unit still problem is same

What original developer powder? Only developer powder I know of is aftermarket for 4 series. I guess you are using aftermarket toner & drums as well?

[maddy4u]

yes

[tsbservice]

yes

Good luck then and bye.

[dibyendu2008]

Aftermarket consumables are not reliable and you cannot get satisfactory output with aftermarket consumables.

[Tech09]

Without knowing the age of the drums and developer units I would say replace all of them and also make sure you clean the laser lenses below the drum units. If, after replacing everything and cleaning the laser lenses, you still have a lighter image on the sides you might want to pull the laser unit itself and clean the hexagonal mirror. They can sometimes build up a white powder on one side of each face of the mirror.

[Gift]

I think this looks not bad considering everything is sourced from aftermarket stuff, the cheapest solution would be adjusting the "expectation management".

I also agree that cleaning the laser glasses/optics/polygon mirror might help to reuce the lighter density on the side. A worn out transfer belt also reduce the image quality, usually visible in irregulations/lines that are visible across different colors (use 100/255 full bleed halftone tests).

[4Toon]

Thanks for your reply. yes all colour have issue except yellow. dv unit re manufactured with original developer power. swap drum unit still problem is same

Yellow would be hard to see this issue on. either belt or drum. if you put your yellow drum in cyan and it still looks the same as the original cyan drum I would look at a new belt. lightness could be the laser like stated above.