| 摘要 |
PURPOSE:To reduce the titled device at its size by storing paper to be copied at both sides from a branch path arranged between a fixing part and a discharging part in a tray for both-side copying paper and moving the tray to a re-feeding position located on the upper part of a photosensitive drum. CONSTITUTION:The required number of sheets for requiring back copying after surface copying are obtained from branch parts arranged on the fixing part and the discharging part of an unshown elctrophotographic copying device body on the basis of keyboard operation and temporarily stored from a receiving port 60 to the both-side copying paper tray 58. When the stored paper reaches the required number of sheets, a driving motor 68 is automatically started, the tray 58 is moved forward by a rack 54 and a gear 62 along a guide rail 56 and moved up to a refeeding device arranged on the upper part of the photosensitive drum. When the tray 58 reaches a fixed position, a message indicating the capability of rear copying is displayed. When the original in front of a platen is turned upside-down, the paper in the tray 58 is successively fed, copied and discharged from the discharge part. Thus, a carrying circuit is partially omitted and simplified and the titled device is reduced at its size. |
