Bizhub 4422

[davidmay]

Customer says it prints fine but copies(off glass & doc feeder) are extremely light. They can manually darken it up but it’s still light. Also the scans to desktop are fine.
I haven’t been there yet. I’ve been out of the field for about 3 years but still have some customers who call me.
Any suggestions ?
Thanks,
Dave

[copyman]

Not familiar with that model but I would start by cleaning the optics including the CCD lens.

[Toxic]

Check imaging unit life.
If under 50% propably that is problem, seen that many times on 4052.

[davidmay]

Wouldn’t bad imaging unit not affect the print also ?

[Dianon]

This model is a labeld Lexmark A4 MFP, Maybe you want to look in the Lexmark forum as well.

If i remember correct it is called MX622 (consumer line) or XM3250 (business line) on the lexmark side.

[AlaskaCopyTech]

I had a really stupid solution to this issue awhile back. If you change the original settings, sometimes, the copier will print just fine on a particular original setting in copy mode.

[Dianon]

I had a really stupid solution to this issue awhile back. If you change the original settings, sometimes, the copier will print just fine on a particular original setting in copy mode.

Thats what my colleague also tells me he often do in this case.
Not my kind of approch, but if it works.

[Toxic]

Wouldn’t bad imaging unit not affect the print also ?

I was thinking the same first time but for some weird reason when IU is weak print still does not show obvious problem, only copy jobs.

[blackcat4866]

I have found that on Lexmark products the original settings choice is very effective in improving image quality for specific situations.

Here's an example: We had Konica Minolta rebadged Lexmark placed at a discount car insurance provider. To qualify for a policy, the agent would copy the insured's drivers license, then scan the copy to an application. When it was set to "Text" original type the copy was mostly black. After scanning that bad copy, the license image was a solid black rectangle, completely illegible. We did two things to improve that image. 1) We set the original type to "Photo". 2) Rather than making a copy, the agent scanned the license image directly to the application. It was a HUGE improvement.

Here's another example: My customer was copying originals that had been printed on a crappy inkjet printer. The individual image pixels were clearly visible, and very light. With original settings at "Text/Photo" the resulting copy was illegible. With the original setting at "Text" and a change in the background setting, the resulting copy came out better than the original.

I guess that I'm saying that I have no problem with this sort of solution.