Abstract: A currency stacker is disclosed which a pusher is positioned within a first chamber of a casing. This pusher comprises a base plate, a pusher plate and a link connecting the base plate and pusher plate for traveling the pusher plate from the retracted position within the first chamber to the extended position in a second chamber of the casing toward and away from the base plate. A bill supplied to the first chamber through a slit of the casing is moved by the pusher plate to the second chamber when the pusher plate is moved to the extended position. Disposed within the first chamber is a driver for operating the link to travel the pusher plate between the retracted and extended positions. The driver keeps the pusher in the extended position to prevent unauthorized removal of the bill from the second chamber.

Abstract: An electrophotographic printer having a print head which moves in a direction perpendicular to the direction of paper feed. The print head comprises a photosensitive drum, a transfer roller disposed in opposition to the recording paper where it moves over the platen, and a toner image bearing belt passing around the photosensitive drum and passing between the transfer roller and the recording paper over the platen. An electrostatic latent image is formed on the photosensitive drum, and a toner image corresponding to the latent image is formed on the toner image bearing belt. The toner image is transferred to and fixed on the recording paper at the location where the transfer roller presses the toner image bearing belt against the recording paper. The print head is moved for spacing while the transfer and fixing are taking place. The sequence of the toner images transferred to and fixed on the recording paper form a desired print out of one line.

Abstract: In electrophotographic process and apparatus of this invention, a drum-like photosensitive member and an endless toner-image bearing member are used. The bearing member is brought into close contact at a part thereof with the sensitive member. The sensitive member is electrically charged. After the bearing member is brought into close contact with the sensitive member, a latent image is formed on the sensitive member. The latent image is developed from an outer side of the bearing member so that a toner image is formed on its surface. To perform ordinary printing, the toner image is transferred onto a support member and then fixed. To conduct printing of multiple copies by using a master, the toner image on the bearing member is fused first to form a master, followed successively by electrical charging of the sensitive member, close contact of the master with the sensitive member, and whole-surface exposure from an outer side of the master. A latent image is formed on the sensitive member.

Abstract: In a focus servo apparatus for moving an objective lens in an optical disk drive from a distant position toward the surface of the disk and maintaining the lens in the correct focus position by means of a servo loop having a lead-in detection circuit for generating an acquisition signal when the objective lens is within the controllable range and a servo loop switch for closing the servo loop in response to the acquisition signal, a lead-in circuit generates a drive signal to move the objective lens into this range before the servo loop is closed. The drive signal rises to an initial peak, then falls back to a lower level. A bias signal is added to the drive signal when the optical disk drive is horizontally mounted. This apparatus overcomes problems caused by friction and the weight of the objective lens.

Abstract: A track-seeking apparatus for an optical disk drive seeks a target track by counting track crossings according to a track-crossing signal. The track-seeking apparatus also has means for detecting the ID fields on the disk and substituting a simulated track-crossing signal for the track-crossing signal in these fields, thus enabling high-speed seeking without track-count errors.

Abstract: An optical head assembly for use with an optical disk apparatus includes a magnetic circuit block having permanent magnets each being elongate in a track traversing direction and a yoke for forming a magnetic circuit which conducts a magnetic field generated by the permanent magnets. The yoke includes a first through hole extending in a focusing direction, magnetic gaps located at opposite sides of the first through hole in the track traversing direction and individually accommodating the permanent magnets, and a second through hole for admitting the light beam issuing in the track traversing direction to guide it to the first through hole. The first through hole and magnetic gaps each has a cross-section relatively long in the track traversing direction. A beam deflector is loosely fitted in the first through hole for deflecting in the focusing direction the light beam which is incident thereto from the second through hole. The beam deflector is supported by a carriage.