| 摘要 |
A system for exchanging a developer unit (16) of a copying or printing machine (10) by moving the developer unit between a transporter cart (20) or the like and the development station (12) of the machine while the cart is docked in alignment therewith. The cart has a liftable development unit holder (32) and a simple but effective foot pedal-operated lifting system (26,28,30) for automatically lifting the holder up to the same level as the development station in said machine, so that developer unit rails (18a) thereon are in accurate alignment with rails (18) in the development station for easily moving a developer unit therebetween, irrespective of variations in the level of the cart and the machine due to floor or machine alignment differences. Also disclosed is a system (24,25) of assisting the lateral alignment of the cart with the machine for docking, and safety interlock systems (40,34,42). <IMAGE> |
