Ricoh 2238C Copy & Print Issue

[DGamer]

The (left page) was printed on the copier, then copied on the same machine, and the result is the (right page). The printed page (left) is nearly flawless, except for the 4 yellow dots. The copied page has is skewed, and full of color lines and bands. If there's an easy fix, please let me know. Thanks all.

[Vulkor]

I'll bite. Was this Scanned on Glass or the ADF (Doc Feeder)?
Color Banding from the Scanner with previous experience is LensBlock/SBU Combo.

The Skew well could be ADF fee issues or scanner assembly bent/warped

[DGamer]

Yes, the banding and lines occur at the ADF. The yellow dots still appear when printed though. What can I do about the ADF?

[msaeger]

Does it look the same if you copy off the glass ?

[DGamer]

No, off the glass it's nearly flawless, except for the 4 yellow dots. The banding, skew, and lines occur through the ADF.

[aabarnes1]

The lines are probably caused by a dirty scan glass and the skew will need to be adjusted in sp mode.Also check all you feed tyres in the adf

[E Winter]

Either the whole scanner or the DF is skewed if it's not just dirt related. Some machines don't like if you use the long shaped screw hole on the right DF hinge up to the max.

[ivacopy]

Hi

If you coping duplex is the same problem with other side

[Vulkor]

And of course yellow dots is prob something to do with Yellow DV unit I could guess.

Now if dots came in any color it would be drum.

[E Winter]

This machine is using 4 drums so I guess his yellow dots are just an arc mark on the y drum.

[Vulkor]

Duh yeah my bad Jan Sommer. I knew that and totally blanked. *I fail lol*

[E Winter]

Yeah no prob, sometimes I've to reboot myself as well^^

[DGamer]

Anything missing from the ADF?

[Scott_Lewis]

For starters, you might want to clean that take-up roller and the feed belt as well. The T-U roller looks to be loaded up pretty good.

I have no idea what is causing the color banding. So, this is just for skewing.

As others have mentioned, loosen and adjust the right hinge for skew. Take a look at the white backer plate while the adf is almost closed and make sure it is lined up and centered reasonably will with the slit glass.

A couple of other things to try.......
Loosen the paper guides on the adf and try feeding again with the original not using the rear guide. IOW, you are looking for the skew to possibly be exagerated due to the rear guide not helping to keep the paper straight. Try stopping the feed process at various degrees of paper feed to look for the skew in progress. If you catch the paper right at the white backer plate above the scan glass, take note. If its straight here, then you likely need to adjust the skew of the adf. If its skewed here, then you have something bent, dirty, broken, etc in the adf feed area/section.

Manually feed a sheet of paper through the adf until it just starts to poke out the underside of the adf. Close up all the covers. Pull the paper out of the adf from the bottom. Can you feel any obvious differences in tension between the rear and front feed rollers? You could also use a narrow strip to feel the tension of each of the five big feed rollers.

I've had to replace the guides due to them being bent by the customer. Specifically, the metal grey one just above and to the right of the set of 5 big rollers as shown in the center of your first picture.

[aabarnes1]

On the second image, the 2 rollers either side of the main (fat) roller they have obvious black marks on them, this is caused by their opposite plastic rollers being too tight against them, probably your adf unit is skewed. may have been caused by a bang or somebody leaning on it. Or just a couple of lazy chinks on a friday afternoon.