Patent ID: 7364156

Claim:
A data processing apparatus comprising a guide unit having an intermediate roller and an arc-shaped guide surface composing a substantially arc-shaped curved transportation unit inside an external case; a paper feed roller pair, which nips and conveys a transported medium conveyed from said curved transportation unit toward a processing position, disposed at a specific distance from a discharge end of said curved transportation unit, wherein said guide unit comprises an auxiliary guide member which projects from said discharge end of said curved transportation unit toward said paper feed roller pair and guides said transported medium conveyed toward said paper feed roller pair, said guide unit rendered to move circularly and open and close in unison with an outside wall portion of said external case positioned on the outside of said guide unit; opening/closing levers for locking and unlocking a lock unit which restricts circular motion of said guide unit in a closed position; and an auxiliary guide linking mechanism for retracting said auxiliary guide member in a direction separating from said paper feed roller pair in conjunction with said unlocking operation of said lock unit by said opening/closing levers.