8400 Light stripes tests

[nicksims]

So I'm having some 1/4" wide stripes problems- more problematic than ever before. Usually one cleaning does the trick for me.

The stripe (consisting of hairline parallel stripes) is showing up in an image with plenty of color and not always in the same place.

I've done the following:
1. Elim. Light stripes test (3 times now.) I held off on the freeze test suggested by xerox since I turned it off last night (I do NOT normally turn this off).
2. Remove print smears test (once)
3. Cleaned the blade on the maintenance kit (about 2-3 months old with plenty of life left)
4. Opened doors and removed whatever dust I could find
5. Went to the xerox site where the next step would be to use the JetFix procedure to clean the jets differently.
6. Printed various test pages directly from the printer's control panel.
7. I do have the updated firmware (my serial number was more recent than this)

I'm about to do the JetFix test- but this seems like it will use a ton of ink. If I have to, I will.

But here is what I don't understand. On the different Light Stripes Tests, the bars that are missing are in different positions (as were the stripes on my various test pages). Does this mean I've simply got dirt floating around in there? Is this a print head problem? Or do you think it the JetFix suggestion by xerox might do it? I'm not really sure how the printheads operate so do I do all 4 colors? On my last stripes test, black, yellow and magenta each had a problem bar. Oddly though, the black stripe that was affected had yellow in it.

Thanks for the help.
Nick

 

[marty5261]

If the missing jets lack consistent placement are moving from color to color and jet to jet, it sounds more like a problem with the wiper assy, either it is out of alignment or needs to be replaced. I tend to think it is an alignment issue. Rotate the assy all the way down, then remove the smaller white gear and rotate the other gear in the direction of moving the assy down. This should realign the assy.

 

[papiste]

I am having the same problem with my 8400 dp. The pale strips test is ok but the cleaning page has pale bands that move.

I have on site guarantee but the Xerox dealership is hopeless. On the one occasion the technician came, he couldn't identify the problem.

Repeated purges are extremely expensive and do not guarantee improvement.

Is this problem frequent for other users ?

 

[marty5261]

If you are getting constant light stripes and cleaning cycles are not recovering or only recover temporarily then you need either or both the printhead replaced and or the wiper assy which cleans the head. If you have an onsite warranty/contract then I suggest you do no more than 3 clean cycles as it only wastes your ink and contact xerox to get them to make the repairs. The problem you are now encountering is that xerox no longer has direct techs for the Phaser products, they have either laid us off, enticed them to take a voluntary severance deal and those that are left were transfered to another division working on other products. So to service the Phaser products they are using 3rd party companies that have techs who are not trained as well nor have the experience on these products. You can use any authorized service partner you want and bypass calling xerox. I have a number of customers that call me direct and then I just file a claim with xerox to get reimbursed. They have a link on their site to help you find someone close to your area.