I'm developing several ideas to pitch to agents next year:   1. A series featuring Ricoh Cannon, copier repairman and amateur crime-solver. First books: "TONER CARNAGE," "THE COPY CAT KILLINGS" and "THE CORPSE LEFT BUTT PRINTS."   2. A series centered around Bea Buffer, city land-use planner and crime-fighting busybody, along with the sweet, dotty ladies of the Riprap Cove Zoning Klatsch. First v…