A control mechanism for a clamper guider in a slot-in drive comprises a
motor used to drive a transmission sheet to move through a gear train;
the transmission sheet drives a control sheet to rotate counterclockwise
or clockwise and further to cause a raised piece of the control sheet to
prop against or separate from the lower end of a downward bended section
of the clamper guider to allow a clamper at the lower section of the
clamper guider to be separated from or entered the location that a disc
is clamped. Whereby, the whole control mechanism has a more power saving
structure and the matching design of the whole transmission structure and
the motor used therein is more convenient.