Clean the optics platen glass under. There's the white sti under the platen glass, make sure that its clean.
Anthony Kamau, Kenya., May 2011
On the Konica 7035, I'm also getting an error message. My question though, is how do you remove the paper trays? There is a piece or two behind them and I can't get the trays out..
John, November 2009
The problem is in the optics. If it happens when you first turn it on. It may be the ribbon cable not totally seated, or is damaged and needs replacing. Which in turn doesn't allow proper voltage to be read. Becareful when removing it and reinserting it. It is the ribbon from the main control board on the back to the ccd on the top. And if it happens when you make copies the optics v mirror may be catching on somethings due to it being bent or out of shape. Which in turn doesn't allow the optics to make a complete rotaion. Good Luck and sorry for my typing skills
Gen, February 2009
edit
I can answer this question...
How to fix my Photocopier konica-Minolta 7035 error code F-46-11?