Trimming apparatus operable in auto mode or manual mode

A trimming apparatus operable in an auto mode or a manual mode for trimming a document in either said auto mode or said manual mode, said trimming apparatus comprising:

• a platform for placing said document thereon;
• a cutter frame mounted on said platform and including a cutting tool for trimming said document;
• a transmission belt disposed beside said cutter frame for moving said cutter frame;
• a motor disposed on one edge of said platform for driving said transmission belt;
• a clamping element for selectively clamping said transmission belt or releasing said transmission belt;
• a switch disposed on said cutter frame for issuing either a conducting signal to enable said motor or an interrupt signal to disenable said motor;
• and
• a mode-switching unit arranged on said cutter frame for switching the operating mode of said trimming apparatus, and selectively combined with or detached from said cutter frame according to said operating mode, wherein when said mode-switching unit is switched to a first position, said mode-switching unit is detached from said cutter frame to trigger said switch to issue said conducting signal and to have said clamping element clamp said transmission belt such that said trimming apparatus is operated in said auto mode, and when said mode-switching unit is switched to a second position, said mode-switching unit is disconnected from said switch to issue said interrupt signal and to have said clamping element release said transmission belt such that said trimming apparatus is operated in said manual mode.