| 摘要 |
An apparatus for scanning an original comprises an original table for receiving an original, the table having protrusions on its underside corresponding to a home position (HP), a starting position (SP), and a forward going position (FP), respectively, whereby microswitches are located for sensing the protrusions as the original table moves back and forth, for producing digital signals indicative of the original table being at one of the aforesaid positions at a given time. |
