Mitsubishi Denki Kabushiki Kaisha

Hiroshi Nakao

Kunihiko Nakagawa

Kouhei Sunaga

Jyun-ichi Aizawa

Hitoshi Ezaki

Kiyoshi Koike

Jyunichi Aizawa

Hisashi Yamada

Kazuyuki Kokubo

A printing apparatus employs a nearly linear conveying path P2 for printing paper P from a position confronting the platen roller 6 and thermal head 7 for composing the printing unit 3 to the paper discharge unit 2. The capstan roller 4, pinch roller 5, and discharge rollers 10, 10 are disposed opposedly to the conveying path P2, and at an intermediate position of the conveying path P2 intersects the conveying path P1 from the paper supply unit 1 to the printing unit 3. A paper supply port is disposed at the bottom of the paper cassette forming the paper supply unit 1, so that the conveying path P1 from the paper supply port to the printing unit 3 is shortened, and accordingly the paper conveying path is shortened. The printer construction simplified and downsized, while the precision of positioning of the printing paper and positioning of the printing head is enhanced, so that the printing quality may be improved.

Printing apparatus

A printer for printing characters and images on recording paper comprising: a paper cassette for storing the recording paper; a platen roller around which the recorrding paper is wound at the time of the transfer of images for printing; a clamping mechanism for clamping the recording paper between the clamping mechanism and the platen roller; a motor for driving the platen roller through a gear unit; a thermal printing head for transferring images onto the recording paper; paper feeding rollers for feeding the recording paper from the paper cassette to the clamper; paper discharging rollers for discharging the recording paper upon the completion of the transfer of images thereto; and an ink cassette storing an ink sheet inside thereof; in which the clamping mechanism comprises a clamper which is mounted on the platen roller in such a manner as to permit the free movement of the clamper, holds the recording paper by pushing the recording paper onto the platen roller in a first position and also releases the recording paper in a second position.

Printer having a clamping mechanism on the platen roller

An image reading device comprises: a frame; a reading unit provided with a line sensor for reading a text image; a guide member fixed to the frame for supporting the reading unit such that the reading unit is free to slide in a predetermined direction; and a stay fixed to the frame. A screwhole is formed at a predetermined position in the reading unit, a first throughhole is formed in the frame coaxially with the screwhole, and a second throughhole is formed in the stay coaxially with the screwhole and the first throughout. Further, an elastic member having a third throughhole engages with the first throughhole in the frame, and a holding member is provided comprising a grip of large diameter and a screw of small diameter. The reading unit is fixed, when the image reading device is transported, by screwing the screw into the screwhole of the reading unit through the second throughhole of the stay and through the third throughhole of the elastic member.

Image reading device provided with structural features for fixing the

A printer for printing characters and images on recording paper comprising: a paper cassette for storing the recording paper; a platen roller around which the recording paper is wound at the time of the transfer of images for printing; a clamping mechanism for clamping the recorrding paper between the clamping mechanism and the platen roller; a motor for driving the platen roller through a gear unit; a thermal printing head for transfferring images onto the recording paper; a paper feeding rollers for feeding the recording paper from the paper cassette to the clamper; a paper discharging rollers for discharging the recording paper upon the completion of the transfer of images thereto; and an ink cassette storing an ink sheet inside thereof; in which the clamping mechanism comprises a clamper which is mounted on the platen roller in such a manner as to permit the free movement of the clamper, holds the recording paper by pushing the recording paper onto the platen roller in a first position and also releases the recording paper in a second position.

Printer

A reading unit for an image reading device includes a lens tube for forming an image of an object and a line sensor for converting the formed image into an electrical signal. A reducing/magnifying mechanism is included for changing the magnification of the image detected by the line sensor. The lens tube is movable such that the optical path length between the lens tube and the line sensor is adjustable to thereby vary magnification of the image. Further, in response to the movement of the lens tube, a movable mirror is adjusted. The mirror is set in a first predetermined position and directs reflected light from the object to the lens tube to shorten the optical path length between the object and the lens tube and thus relatively increase magnification, in response to the lens tube being in a predetermined normal position with a relatively long optical path length between the lens tube and the line sensor. Then, the mirror is set in a second predetermined position and does not direct reflected light from the object to the lens tube to lengthen the optical path between the object and the lens tube and thus relatively decrease magnification, in response to the lens tube being in a predetermined reducing position with a relatively short optical path length between the lens tube and the line sensor. Movement of both the movable mirror and the lens tube are therefore linked together and are each displaced between predetermined positions so as to vary magnification of the image and to prevent distortion in the image read by the line sensor.

Image reading device for percisely moving optical components to provide

A printer for printing characters and images on recording paper comprising: a paper cassette for storing the recording paper; a platen roller around which the recording paper is wound at the time of the transfer of images for printing; a clamping mechanism for clamping the recording paper between the clamping mechanism and the platen roller; a motor for driving the platen roller through a gear unit; a thermal printing head for transferring images onto the recording paper; a paper feeding rollers for feeding the recording paper from the paper cassette to the clamper; a paper discharging rollers for discharging the recording paper upon the completion of the transfer of images thereto; and an ink cassette storing an ink sheet inside thereof; in which the clamping mechanism comprises a clamper which is mounted on the platen roller in such a manner as to permit the free movement of the clamper, holds the recording paper by pushing the recording paper onto the platen roller in a first position and also releases the recording paper in a second position.

Printer discharge apparatus

A printer for printing characters and images on recording paper comprising: a paper cassette for storing the recording paper; a platen roller around which the recorrding paper is wound at the time of the transfer of images for printing; a clamping mechanism for clamping the recording paper between the clamping mechanism and the platen roller; a motor for driving the platen roller through a gear unit; a thermal printing head for transfferring images onto the recording paper; a paper feeding rollers for feeding the recording paper from the paper cassette to the clamper; a paper discharging rollers for discharging the recording paper upon the completion of the transfer of images thereto; and an ink cassette storing an ink sheet inside thereof; in which the clamping mechanism comprises a clamper which is mounted on the platen roller in such a manner as to permit the free movement of the clamper, holds the recording paper by pushing the recording paper onto the platen roller in a first position and also releases the recording paper in a second position.

Printer having a speed reduction mechanism with integral and

A printer for printing characters and images on recording paper comprising: a paper cassette for storing the recording paper; a platen roller around which the recording paper is wound at the time of the transfer of images for printing; a clamping mechanism for clamping the recording paper between the clamping mechanism and the platen roller; a motor for driving the platen roller through a gear unit; a thermal printing head for transfferring images onto the recording paper; a paper feeding rollers for feeding the recording paper from the paper cassette to the clamper; a paper discharging rollers for discharging the recording paper upon the completion of the transfer of images thereto; and an ink cassette storing an ink sheet inside thereof; in which the clamping mechanism comprises a clamper which is mounted on the platen roller in such a manner as to permit the free movement of the clamper, holds the recording paper by pushing the recording paper onto the platen roller in a first position and also releases the recording paper in a second position.

Apparatus for releasing paper clamp on platen roller

A printer for printing characters and images on recording paper comprising: a paper cassette for storing the recording paper; a platen roller around which the recording paper is wound at the time of the transfer of images for printing; a clamping mechanism for clamping the recording paper between the clamping mechanism and the platen roller; a motor for driving the platen roller through a gear unit; a thermal printing head for transferring images onto the recording paper; a paper feeding roller for feeding the recording paper from the paper cassette to the clamper; paper discharging rollers for discharging the recording paper upon the completion of the transfer of images thereto; and an ink cassette storing an ink sheet inside thereof; in which the clamping mechanism comprises a clamper which is mounted on the platen roller in such a manner as to permit the free movement of the clamper, holds the recording paper by pushing the recording paper onto the platen roller in a first position and also releases the recording paper in a second position so that the paper is guided by the ribbon and printhead.

Sheet guiding in thermal printer

An output mechanism printer which prints characters and images on recording paper includes an input path along which a sheet of paper is conveyed towards the printing unit, a cylindrical platen roller having a longitudinal axis of rotation which is orthogonal to the input direction, and an output device which moves the sheet in the same direction as the input direction, and then automatically moves the paper directly parallel to the longitudinal axis of the platen until it is outside the printer.

Output path in a printer

A printer for printing characters and images on recording paper comprising: a paper cassette for storing the recording paper; a platen roller around which the recording paper is wound at the time of the transfer of images for printing; a clamping mechanism for clamping the recording paper between the clamping mechanism and the platen roller; a motor for driving the platen roller through a gear unit; a thermal printing head for transferring images onto the recording paper; a paper feeding rollers for feeding the recording paper for the paper cassette to the clamper; a paper discharging rollers for discharging the recording paper upon the completion of the transfer of the images thereto; an ink cassette storing an ink sheet inside thereof; in which the clamping mechanism comprises a clamper which is mounted on the platen roller in such a manner as to permit the free movement of the clamper, holds the recording paper by pushing the recording paper onto the platen roller in a first position and also releases the recording paper for feeding by the ink sheet in a second position.

Sheet discharge in multi-color thermal printer

A sublime type thermal transfer printer uses an ink sheet on which a fixing agent of a sublimation ink is coated and thermally transfers the fixing agent of the ink sheet onto a plain printing paper first, then thermally transfers an image on the ink sheet onto the area of the printing paper where the fixing agent is transferred by subliming an ink coated on the ink sheet.

Growing community of inventors

Kyoto, Japan

Hiroshi Nakao