| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device with a paper feeding device realized in high through put and high reliability when feeding the sheet material to an image forming unit. SOLUTION: When a carrying sensor 27 detects a rear end of a former sheet material S, the operation for preparing feeding of a following sheet material S is started, and a register sensor 7 detects re-carrying of the former sheet material S to the image forming unit by a register roller 8, and informs with the TMG signal 47 to start the feeding operation of the following sheet material S. With this structure, the feeding operation of the following sheet material S is carried out step by step, confirming the normal carrying of the former sheet material S, and these operation are done in the earliest timing. An engine control unit 29 sends a command for reserving paper feeding before the timing of starting the paper feeding, and an option device control unit 30 received the reservation performs the paper feeding by itself in the described timing. |
