Ricoh 1515 The cable in the manual feed tray came disconnected. This cable runs across the bottom of the tray and I can't see where it connects to.

http://www.ehow.com/how_8271268_change-toner-ricoh-aficio-1515.html
follow these instructions :)

is thera paper jam sensor wigle paper in and out unplug unit from wall 2 min ten back in hit sensor with paper hit reset on unit

Replace the the torque limiter, clutch gear, and feed lever this should resolve the jamming issue from tray one. Hope this helps.

You must first try to clean the paper feed roller which you will inside of the printer (bottom) when you pull out the paper tray. If this not works, then I am 100 % sure that the magnetic clutch which operates this feed roller must be replaced. I can tell you the part number for ricoh part catalog:
GX20-0014. If you don't have tech skills please don't do it by yourself because it's a hard and precision work. Call for help tech support
pifonski

Sometimes with those small copiers, the cap from the old toner bottle will remain when you put in a new bottle. Take out the toner bottle and look in the mouth of the toner hopper (where the top of the bottle sits) to make sure there isn't a plastic cap with two fins on it sitting there. If it is there, that's your problem -- just throw it away.

If there's no old toner cap there, make sure the toner bottle is sitting on the hopper tray and the tray is pushed in, snapped into place, and the green handle on the front is in the downward position. If the toner hopper isn't pushed in all the way so it snaps in, the machine won't be able to load toner.

If neither of these scenarios is the problem, check to make sure you have the right kind of toner. I believe for a 1515 it should be type 1170D, but you might want to check your owner's manual to be sure.

It is the polygonal mirror error code.Inspect the polygonal mirror motor,the connection between the motor and BICU unit,the cable and BICU unit.For reset turn the copier main switch OFF disconnect the main cable,wait 1 minute,connect the main cable and turn ON the copier..

The lights are misaligned with the paper, meaning that it doesn't sense the paper.
Sensor problem.

Open up the doors and blow some compressed air throughout the paper path (where the paper travels up). Make sure to blow air onto the sensors, because paper dust can coat them, causing false jams.

Does the paper get out of the tray at all? There is a feed roller that feeds the paper up into the machine; if you remove the paper tray you can see this roller -- it's big and gray and has grooves across it -- above where the paper sits toward the front of the printer. Blow air onto this roller as well, and if you have either D-ink or a rubber rejuvinator, clean the roller with a lint-free cloth.

Also make sure the paper is snug in the tray and not bent or crooked.

On the left inner corner has a white female connector for it

get your manual owner, and do the following instruction there