New Phaser 6510 blacks uneven/splotchy

[DavidX28897-xrx]

https://www.xerox.com/downloads/europe/r/RML-2016_10_WC6515_Phaser6510_Media_List_Antalis_Xerox_Octo...

The above is the list of approved and tested media. 

Program as glossy cardstock 210gsm for better transfer. If you are having problems in the middle of the page only it is likely a drum/LED or less likely a transfer belt, 2nd BTR, fuser issue. 

1. t the printer control panel, press Menu.
   
   Note: To navigate through the menu, use the Up or Down arrow buttons.
   
   
2. Navigate to Admin Menu, then press OK.
3. Navigate to Printer Settings, then press OK.
4. To select the paper type, navigate to Paper Type, then press OK.
5. Navigate to the desired tray, then press OK.
6. To select the desired paper setting, press the arrow buttons, then press OK.

Try printing cyan or magenta. They use different drums than black. If those comes with splotches replace the transfer belt/2nd btr. File a claim with Xerox.

However, more likely it is a problem with the black drum/LED. 

If cyan/maganta prints good, clean the black LED using your cleaning wand(behind waste container) then if that fails, change the drum. File a claim with Xerox for a new drum if below doesn't fix and your paper is within spec.

Clean LED:

https://wss.support.xerox.com/GTConnect/UnifiedAcceptor/AddWebFramework.Main/site/XeroxProductSuppor...

Clean color density sensor:

https://wss.support.xerox.com/GTConnect/UnifiedAcceptor/AddWebFramework.Main/site/XeroxProductSuppor...

Give links 10 secs to load the page

[enmanueljp]

iam having the same problem the machine is brand new! i have tested with several papers the only that seems to be working is comun paper! 

[myy]

I'm having trouble finding where to set those values. I can choose "Custom Type 1-5", but there is no apparent menu to set options for these custom profiles.

I'm not entirely knowledgeable how a laser printer works, but will doing this overcompensate the sides which appear fine? Is this normal behavior for a new unit?

[DavidX28897-xrx]

Try bumping the tray settings to say the stock weight is 220 gsm. This will increase the transfer voltage

[myy]

Thanks. I suspected it had something to do with the paper. After changing the settings, the blacks are significantly richer on the sides, but the same problem area is still noticeably lighter with splotches albiet much less than before.

[Joe Arseneau]

It isn't fusing properly, which implies the tray has not been set as what you loaded, which should be Glossy Cardstock at 120 GSM. Which makes the fuser not get hot enough to fuse the toner

[myy]

Testing out a brand new Phaser 6510 using the pre-installed toner. Printing blacks results in spotted appearance, mostly in the center of the page. Is this something I can fix/adjust or will it need to be replaced/serviced? Printing on 32lb color laser gloss paper.