A portable image-forming device includes a housing, an exposure member for exposing an instant film disposed inside of the housing by means of a light radiating from the screen of a portable display device, a shading member linked in movement with the exposure member so as to shade the instant film, a traction member connected to the exposure member so as to move the exposure member to a pre-exposure position, and a developing-agent-spreading member for spreading a developing agent, which is provided on the instant film, over the entire instant film. The traction member and the developing-agent-spreading member are manually operated by a user.

A portable interactive photo kiosk comprising a weighted base section comprising a bottom surface for abutting support on a floor surface and a top surface defining a bore for rotatably receiving a rotational shaft; a body section housing a drive mechanism to control oscillating rotation of the body section relative to the base section between a first angular end position and a second angular end position; a display comprising a processor and interactive touch screen display coupled to a top portion of the body section; a camera communicative with the processor, a printer housed within the body section and communicative with the processor and a proximity sensor communicative with the processor for sending a control signal to stop oscillating rotation of the body section. Networked systems and methods incorporating the same are also described.

A portable interactive photo kiosk comprising a weighted base section comprising a bottom surface for abutting support on a floor surface and a top surface defining a bore for rotatably receiving a rotational shaft; a body section housing a drive mechanism to control oscillating rotation of the body section relative to the base section between a first angular end position and a second angular end position; a display comprising a processor and interactive touch screen display coupled to a top portion of the body section; a camera communicative with the processor, a printer housed within the body section and communicative with the processor and a proximity sensor communicative with the processor for sending a control signal to stop oscillating rotation of the body section. Networked systems and methods incorporating the same are also described.

A printer includes an encoder plate that rotates in conjunction with transport of a recording medium and on which slits are radially formed, a photo-interrupter that emits light to the encoder plate and receives the light to output a rotation detection signal, a fixed slit plate that narrows the light emitted from the photo-interrupter, and a positioning portion that positions the photo-interrupter with respect to the fixed slit plate and includes a reference holding portion and a deformable holding portion provided at a position facing the reference holding portion, in which the deformable holding portion is deformed to hold the photo-interrupter.

A printer includes an encoder plate that rotates in conjunction with transport of a recording medium and on which slits are radially formed, a photo-interrupter that emits light to the encoder plate and receives the light to output a rotation detection signal, a fixed slit plate that narrows the light emitted from the photo-interrupter, and a positioning portion that positions the photo-interrupter with respect to the fixed slit plate and includes a reference holding portion and a deformable holding portion provided at a position facing the reference holding portion, in which the deformable holding portion is deformed to hold the photo-interrupter.