In this machine, to maintain the paper gap constant, the paper feed sensor (S12) (S22) [A] near the paper feed roller adjusts the paper feed timing.

  1. The paper feed motor (M6) is switched ON, and the first sheet is supplied.
  2. Just before the rear edge of the first sheet leaves the paper feed roller [B], the paper feed motor (M6) switches OFF.
    At this time, if the paper feed sensor (S12) (S22) [A] detects "Paper Out" (if a second sheet has not been transported to the paper feed sensor position), the paper feed motor (M6) does not switch OFF, and pre-feed is performed. Pre-feed is as follows:
    1. The second sheet is transported to the paper feed sensor position.
    2. When the rear edge of the second sheet passes the paper feed roller [B], the paper feed motor (M6) switches OFF.
  3. When the first sheet is transported a predetermined distance by the downstream transport roller, the paper feed motor (M6) switches ON to supply the second sheet of paper.