Patent ID: 8495957

Claim:
An image-forming machine, comprising: an image forming device for printing sheets; a plurality of paper feeders for supplying the sheets to the image forming device; a plurality of traveling routes extending from the respective paper feeders toward the image forming device, said traveling routes associating with the paper feeders and having predetermined paper feeding speeds depending on a curvature radius thereof, respectively; a paper feeder selection unit for selecting one of the paper feeders performing a highest maximum allowable image-forming speed set based on the paper feeders; a control unit electrically connected with the image forming device, the paper feeders, and the paper feeder selection unit, for controlling the image forming device, the paper feeders, and the paper feeder selection unit, said control unit having a setting of speed-priority; and an operation panel indicating settings of operations manually selectable by a user of the image-forming machine, wherein when the user selects the setting of speed-priority on the operation panel, the paper feeder selection unit selects the paper feeder of the highest maximum allowable image-forming speed and operates the image forming device according thereto.