I have a 740 that is leaving dots of toner on the printout. The dots are random and are coming from a pile that forms along the transfer roll above the waste bin. I have three of these printers, and now I have this issue in all three. The test pages come out with horrible multicolored spots and lots of these dots. When I follow with a normal b/w printout, the random dots of toner are a lot less. If these weren't so heavy I would toss them out the window.