Question about Printers & Copiers
The exit rollers at the top of the printer, after the fuser, are turning the wrong way when starting printing. causing paper to stop at these rollers.
My solution to this problem was different: I cleared the paper jam from the rear of the machine, pulling the paper out from the back. This fixed the constant paper jams that were preventing me from printing duplex.
Back story: I began getting paper jams in high humidity (but not necessarily outside the operating levels recommended in the manual), and sometimes changing paper to "recycled" or "thin" allowed me to print without curling or creasing. But then it got to the point where I could no longer print duplex at all without curling or creasing. I didn't notice at the time that I could print single-sided okay, and after research feared the fuser unit was breaking down, with too high temperature, hence the curling. However, the machine has only seen light use, and at 13k pages printed was way under the projected 100k pages life of the fuser. Once I figured out I could print single sided alright, that suggested a problem with the duplex. I tried the solutions above, taking everything apart, cleaning them, opening/closing the rear, making sure the white latches were fully engaged (I think I know which ones were being discussed, but still not entirely sure). This didn't fix the problem, still constant jams with curled paper when printing duplex.
Then I realized I normally clear them by opening the front and pull the paper out. This is the reverse direction from the way the paper feeds. I switched to clearing from the rear, which means pulling the paper out in the feed direction, which fixed the problem. I suspect that the paper wasn't feeding properly back into the fuser/drum from the duplex tray, and pulling it in the right direction helped get the rollers back in the right position?
FWIW, this is a refurbished Brother HL-5250DN with a serial number indicating it's from the production run up to K6J702822 that SoulVisitor mentioned. Presumably it was fixed by Brother, but perhaps the fix wasn't totally reliable...
Posted on Sep 05, 2013
My rollers were also inexplicably turning the wrong way when trying to print -- like it was an incomplete duplex job. But in my case, my cat LOVES to sit on the printer and gaze out the window. I suspected that debris or whatever was causing some sensor somewhere to freak out.
So, I took one of those dust remover air cans, took out the toner cartridge, opened up the unit as best I could, front and back, and just sprayed as best I could.
The unit sure LOOKED good, but, better yet, the rollers started going the correct way and now she prints as good as ever.
Posted on Jan 01, 2011
I have had the same exact problem; make absolutely sure that the exit chute is seating properly. With the exit chute open (as if to clear a paper jam) actuate the white spring loaded clips that hold the exit chute, mine were not traveling to their full extension and by moving them a few times this resolved and the exit chute was held more firmly and the rollers spin the right direction.
Posted on Nov 22, 2007
I have never seen that happen on one of these.
check to be sure that they go backward at the end of printing, they may reverse on startup
I think maybe you are missing the door that sits inside the rear door (called outer shute assy). When you open rear door there should be another before fuser.
How old is this machine, because there is a fuser and outer shute and cover mod, that goes in to early product run of this model. Machines affected are from the Initial production up to and including Serial No.'s K6J702822 (last 9 digits of S/N), this mod is to help with paper curling at exit causing jams.
Posted on Nov 08, 2007
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