Dell 1720dn printer paper stops halfway. No obvious cause.

SOURCE: fuser drum ?

Were you able to fix your printer?  Mine is doing the same thing.  Thanks. smack48

SOURCE: toner dumps all over the inside, paper coated all black and jams behind fuser

We to have this issue with one of our 1600's. I tried to resolve this by replacing the fuser with a new one. Haven't got back around to trying to resolve this as it such a mess to get started. Someone resolve this issue yet?

SOURCE: Pages full of toner / toner streaking

First off, this is a comment from a random person who may or may not know ALOT about these printers and toner/printer design in general. All toners are not designed to the same specification. Toner is a combination of plastic "pigment" and iron like shavings to make it magentically attracted to the electrical charges within the unit. Different toners conform to different grades and mainly size of the particles within the blend. The manufacturer doesnt only recommend that you use their toner to make them money, yes of course it makes money, but its because when the unit is designed it is designed to use a certain grade of toner, trust me if you put the non-branded toner vs the branded toner under a microscope you would see quite a difference. Often the non-branded toner is much larger in particle size (obviousely because its cheaper to make at this spec). This causes a variety of issues from excess toner not being cleaned off of developer rollers, IDT rollers, or clogging of toner dispenser tubes in the unit and the micro filters contained at the toner dispenser assy and developer assys. Also as for the issue not changing when switching to dell branded toner - the dispenser tubes within this unit contain up to 500-1000 pages worth of toner, making no change in toner you make immediately visible. Also depending on the damage caused by the previous toner, it may not be able to be fixed until all the components in between the toner and final delivery (drum cart) are replaced. In this case more than likely the toner dispenser assy, all developer assy's, and drum cartridge need to be replaced, and than be sure to stick with factory branded toner :)

SOURCE: Paper jam on back rollers

If it jams every time while printing only 1 page and stops just past the exit of the fuser unit, it is most likely that there is a problem with the paper exit sensor on the fuser unit. We have many of the 1700N printers and have seen several times that the paper exit sensor actuator arm gets broken off when removing a paper jam.

SOURCE: paper cannot pass the Fuser/pressure rollers

The little rubber rollers can be taken off and turned inside out and I'll betcha that ****** starts worling.