Abstract: A photo printer includes a housing, a circuit board having a first set of female conducting terminals and a control circuit for controlling the operation of the printer, a connection module having a connector that contains both a first set of male conducting terminals for engaging with the first set of female conducting terminals and a second set of female conducting terminals, and an external card for storing data having a second set of female conducting terminals for engaging with the first set of female conducting terminals.

Abstract: A self-positioning guard of a printer includes a cover for blocking an access opening of the printer and a positioning apparatus coupled to the cover for controlling movement of the cover. The cover has a plate for blocking the access opening and a hinge coupled to the plate for allowing the plate to pivot away from the access opening. The positioning apparatus has a motor for supplying a rotational motion, and a Scotch yoke coupled to the motor for converting the rotational motion into a linear motion for moving the cover.

Abstract: A photo printer includes a housing, a circuit board having a first set of female conducting terminals and a control circuit for controlling the operation of the printer, a connection module having a connector that contains both a first set of male conducting terminals for engaging with the first set of female conducting terminals and a second set of female conducting terminals, and an external card for storing data having a second set of female conducting terminals for engaging with the first set of female conducting terminals.

Abstract: A printer has a housing and a recording apparatus set in the housing for printing information on a recording media. The recording apparatus has a paper feed-out roller in the housing for driving the recording media, and a set of paper feed-out clipping rollers set on one side of the paper feed-out roller for clipping the printing media between the paper feed-out clipping roller and the paper feed-out roller for driving the recording media out of the housing. The paper feed-out clipping roller has a circular circumference and a plurality of protuberances on the circumference surface. When the paper feed-out clipping rollers and the paper feed-out roller are driving the recording media forward, the circular circumferences of the paper feed-out clipping rollers will not completely contact the recording media and so will not cause ink smearing.