Trickle Duct Assembly (for Developer) (OEM 054K25205, 054K25203) for Xerox® 4110 style

For Xerox® models: 4110, 4110EPS, 4112, 4112EPS, 4127, 4127EPS, 4590, 4590EPS, 4595, 4595EPS, D95, D110, D125, D136

Developer Trickle Duct Assembly - 054K25205, 054K25203 Genuine Xerox^®

Note that the Developer Bias Contact Spring on this unit (see the 3rd photo) is critical.  If you lose the developer bias, the copies and prints will come out with a gray background.  Check this spring to make sure it did not get dislodged and if it is still there, try cleaning it and stretching it a little so it will make more certain contact.