Paper jam as red lights

JDRW is correct.

That little "Stick-thing" is a rod connected to the sensor inside the printer that triggers the warning for paper jams.

The little "stick-thing" is part of a rod assembly that extends to the right side (if you're looking at the back of the printer) of the printer. It is connected to the black panel via a couple of semi-circular channels and held with a spring.

Unfortunately the rod connecting the "stick" part of the sensor trigger and the actual sensor trigger is somewhat flexible and a good paperjam (particularly with thicker paper) can dislodge the rod from its semi-circular snaps and, hence, the "stick" won't line up to the channel in the black panel in which it normally rests.

Run you hand along the inside of the black panel making sure that you genltly press the rod back into place so the "stick-thing" part of the sensor actuator can gently fall into the little channel for it in the black panel.
Close everything up and, like JRW said, VOILA!

I had this same problem and fixed it today. I had a paper jam 3 days ago and after opening the back and removing the jammed paper, the red paper light continued to flash no matter what I did. But today, what I did fixed it.
I opened the outside back "door" on the printer. Inside that, there is a black panel with a warning "hot" label on it, and blue "buttons" that you can press to release the roller to un-jam paper that is caught. I carefully un-hooked that black panel and lowered it down just like I did to un-jam the paper. At this point, you will see in the center of this black panel, a small toothpick-like black sensor "stick" for lack of a better word. This "stick" is attached to some kind of rod that connects at the right side of the black panel. I gently moved the rod back and forth...it has about 1/8th of an inch movement left to right. and I re-positioned the black "stick" so that it lined up better with the inside of the printer. Then, I re-attached the black panel into place and shut the outside "back door" on the printer and viola! the red light was off and the green light was on. So I have to believe this whole problem is related to that little black "stick" thing and it must be some kind of sensor. that's all I can guess. By the way, we re-loaded the print driver before this and it didn't do any good. Hope this helps someone! --drw

I did both of the things. I replaced the catridge and I blew out the entire insides with the canned air. It printed with a lot of verticle streaks for about 40 copies ( I just kept feeding the used paper back in and flipping it over and feeding it again so as to not waste a bunch of paper) It seems to be fine, now. I'm keeping my fingers crossed. It was NOT the toner light flashing, just the paper light.

Some of the newer printers a flashing red light means the toner is empty try replacing it.

just had the same problem today 6th of jan 2009 , 2 lights flashing, the answer is'nt above , the answer to slove the problem , i found by chance, turn off the printer and take out ubs cable, open up the top and move along the ink cart to reveal the resting plate and ink pad, all i did was to wipe the plate of ink and also the little sponge , leave the ink cart where they are .plug in the leads and press the green button and the ink cart will go up and down as normal and come to rest as normal at end of printer and the reds lights should be out and just the green light on., hope thios helps
bertie