hp color lj 4700

[Orion2010]

hello to all,i have problem with hp lj 4700, in the front side the image is ok, but in the behind makes dirty IMG_1045.JPGIMG_1046.JPG i change all toner, transfer beld but nothing. any idea?

sorry for my english

thanks

[Wild Bill]

Re: hp color lj 4700

Using Reman Toners?
I would start with the Magenta cause in the pic I see a Red Haze on the front side. Pretty sure that's the issue. Let us know

[Printerdude]

Re: hp color lj 4700

Use the disable cartridge in the diagnostic menu. Remove all toner cartridges and insert one cartridge at time until print defects appears, that way you will know which cartridge(s) is causing the problems.

Looks like the magenta and cyan are defective cartridges.

[Printerdude]

Re: hp color lj 4700

Just notice in picture one, the test sheet is from a CLJ 4600 printer. Anyway, the troubleshooting procedure is the same.

[theengel]

Re: hp color lj 4700

You mean when you make a print, the blank side of the paper is getting dirty? Or do you mean the 2nd side of a duplex print?

I would look toward the fuser... unless you're using a refurb transfer unit. These transfer units aren't reliable when they're refurbed.

Also, look at the stickers on the toner ctgs... the labels. Sometimes they start to peel off a drop toner on different parts of the transfer unit as it's moving.