Sharp Kabushiki Kaisha Corporation

Katsuyuki Sakai

Shigeru Kida

Motohiko Hayashi

Matahira Kotani

Kenichi Shiraishi

Masafumi Matsumoto

Ryoichi Kawai

Masafumi Yamanoue

Kouichi Mino

Mamoru Fujii

Naomitsu Murata

Junichiro Matsumoto

Hiroya Inagaki

Mitsunobu Kondo

Sadaaki Shimonaga

Jun Hiraoka

Masaya Kawatsuri

Manabu Sakata

An image recording apparatus in which a line-type thermal head is used, which image recording apparatus can switch recording modes without an operation of attaching or detaching an ink ribbon cartridge and heat-sensitive recording paper by an operator. An image recording apparatus includes a line-type thermal head, a thermal-transfer recording platen and a heat-sensitive recording platen. By switching the thermal-transfer recording platen and the heat-sensitive recording platen, a thermal transfer recording mode and a heat-sensitive recording mode are switched.

Image recording apparatus and facsimile apparatus

A thermal transfer facsimile apparatus of the type having a transmitting system disposed above a recording system, which construction is compact and allows a user to open a body cover to remove a document jammed in the apparatus with no fear of damaging the document. In the apparatus, a part of an ink-ribbon cartridge serves as a lower guide for supporting a document to be transported, while a part of the body cover, to which a platen and rollers for feeding and delivering recording paper are attached, also serves as a lower guide for the document. When a body cover is opened to replace an ink ribbon with new one or remove a document jammed in the apparatus, a distance formed between a document feeding roller fixed to the body and a lower free end of the body cover is so elongated by virtue of the existence of the guiding part of the cartridge that document may be gently curved and stretched therebetween without being damaged. This can also assure a compact design of the apparatus.

Thermal transfer facsimile apparatus

An inventive apparatus for feeding rolled paper comprises rolled paper, a feed roller for feeding the rolled paper, a cutting unit for cutting the rolled paper, a driving source for actuating the feed roller and the cutting unit, a first gear train interposed between the driving source and the feed roller and a second gear train interposed between the driving source and the cutting unit. A reverse feed gear for transmitting driving force for a cutter gear to a feed gear is interposed between the first gear train and the second gear train and connects the first gear train with the second gear train when a movable cutter moves from a cutting position to a non-cutting position. Thereby, the feed roller is rotatively driven in the direction opposite to the feed direction by the driving force from the cutter gear.

Roll paper feeding apparatus

In a holding construction for holding a recording paper rolled up around a cylindrical base, by inserting a holding member into each end of the base and supporting the holding member with a supporting member, either projections or recesses are formed on the outer circumferential surface of at least one of the holding members at predetermined pitches in the circumferential direction, and either recesses to be engaged with said projections or projections to be engaged with said recesses are formed in the portion of the supporting member which abuts against the outer circumferential surface of the holding member, at pitches determined on the basis of said predetermined pitches.

Construction for holding recording paper roll

A recording apparatus includes a roll of recording paper, a roll conveying roller for feeding a roll of recording paper, and a sheet conveying roller for feeding sheets of recording paper. Power from a DC motor is transmitted to both rollers through a switching mechanism. The switching mechanism includes a system gear, a planetary gear, and a planetary gear arm, and a locking member for fixing the planetary gear arm at a prescribed position. A head release cam, a head release pulley, and a timing belt cooperate with the switching mechanism to remove pressure from a print recording head to prevent damage to the head during switching. Accordingly, a roll of recording paper and sheets of recording paper can be selected and used as needed without increasing the manufacturing cost and size of the apparatus.

Recording apparatus

A facsimile apparatus having a housing (10) for the apparatus and a telephone placing portion (12) disposed at an upper part of the housing, on which a telephone (11) connected to a public telephone network can be placed. The facsimile apparatus further including elements (18) for scanning an original by feeding the original to generate electrical signals representing image information of the original and elements (19) for recording image information applied to the apparatus through the public telephone network on a sheet. Both the scanning elements and the recording elements are disposed side by side along the direction of feeding of the original. The telephone placing portion is disposed above both the scanning elements and the recording elements to cover the upper portion of both the scanning elements and the recording elements. The apparatus further includes a first passage (32) disposed between the telephone placing portion and the scanning elements for feeding the original and second passage (33) disposed between the telephone placing portion and the recording elements, for feeding the original passed through the first passage. Both the first passage and the second passage can be opened to the outside by opening the placing portion.

Facsimile apparatus

A thermal printing device for printing an image data on a thermosensible paper includes a platen roller for conveying the thermosensible paper, a thermal head having a plurality of heater elements provided in opposition to the platen roller, a unit for pressing the thermal head against the platen roller with the thermosensible paper laid therebetween when the image data is printed on the thermosensible paper, a unit for controlling the pressing unit to release the thermal head out of a pressing state against the platen roller under predetermined conditions, and a unit for selectively actuating the heater elements in accordance with the image data.

Thermal printing device including jam detection means

A printer in which a rolled recording paper is housed in a recording paper cassette formed integrally with a printer proper and openably with respect thereto, and one of a thermal recording head or a platen roller is disposed at an openable free end of the cassette with the other disposed in the printer proper, whereby printing onto the recording paper is effected by conducting electrical current to the recording head while the recording paper being clamped by the recording head and platen roller.

Printer with openable paper web cassette mounting a platen roller

A paper feeding device, having a capability of feeding a tip end of a recording paper to between a recording head and a platen roller, includes a detachable paper storage cartridge to be mounted to or de-mounted from the recording device itself and storing the recording paper, a unit for releasing the recording head out of the pressing state against the platen roller, and a unit for feeding the recording paper included in the detachable paper storage cartridge. The device further comprises a unit for sensing that the detachable paper storage cartridge is mounted to the recording device itself. The recording paper is fed automatically between the recording head and the platen roller by means of the releasing means and the feeding means in response to an output signal from the sensing means when the detachable paper storage cartridge is mounted.

Paper feeding device capable of quickly replacing recording paper

Disclosed is an image data transmission apparatus which includes an image reading unit for reading the original image, and a transmission apparatus main body. The main body includes a memory for storing the image data read by the image reading unit and transmits the content of the memory. The image reading unit is detachably mounted on the transmission apparatus main body. The transmission apparatus main body is further provided with a conveying device for conveying the original in a state in which the image reading unit is mounted on the transmission apparatus main body to thereby read the original. The image reading unit may also scan the original to read an original image, in a state in which the image reading unit is dismounted from the transmission apparatus main body. Further, a sheet element made of a material of a low coefficient of friction, as opposed to the original, may be disposed at a position corresponding to the mounted state of the image reading unit on the transmission apparatus main body. Further, an image data transmission apparatus is disclosed which possesses the telephone function and copy function, and is also provided with, as desired, a facsimile function by mounting a detachable facsimile processing device in the transmission apparatus main body. Further, the operation panel may be, in order to use it as the original stacker, disposed angularly dislocatably around the axial line crossing with the original inserting direction.

Image data transmission apparatus

A power switching apparatus in accordance with present disclosure includes a sun gear which can be driven to rotate in a first and second direction, an arm which can swing freely relative to the rotating axis of the sun gear. A transfer gear is pivotally provided at the arm for engaging with the sun gear. There is a pair of driven gears disposed a prescribed distance apart from each other in the circumferential direction of the sun gear so that each of said driven gears can engage independently with the transfer gear. A control device controls the position of the transfer gear so that the transfer gear can engage with one of the driven gears before initiation of rotation of the sun gear.

Power switching apparatus with power switching timing

A facsimile apparatus has a single conveying roller in it, above which an image sensor is set and below which a printing head is set. Pressing pins are set respectively near the upper and lower ends of components supporting the conveying roller to freely rotate. In transmission, the lower pressing pins keep away the printing head from the conveying roller and the image sensor presses an original document onto the conveying roller. In reception, the upper pressing pins keep away the image sensor from the conveying roller and the printing head presses the recording paper onto the conveying roller. In this way, structure of the facsimile apparatus is simplified.

Image data processing apparatus

A thermal recording apparatus includes a roller for transferring thermosensitive recording paper, a thermal head including heating resistance elements, and a flat spring for biasing the thermal head to press against the thermosensitive recording paper on the roller. A cam is further provided in the thermal head, including a cam face along with contact members for keeping the thermal head at a distance from thermosensitive recording paper, and pushing the roller against the biasing force of the flat spring, under the condition where the heating resistance element of the thermal head is positioned on the line including the shaft of the roller and the contact point with the cam face.

Thermal head separating mechanisms

Disclosed is an image data transmission apparatus which includes an image reading unit for reading the original image, and a transmission apparatus main body. The main body includes a memory for storing the image data read by the image reading unit and transmits the content of the memory. The image reading unit is detachably mounted on the transmission apparatus main body. The transmission apparatus main body is further provided with a conveying device for conveying the original in a state in which the image reading unit is mounted on the transmission apparatus main body to thereby read the original. The image reading unit may also scan the original to read an original image, in a state in which the image reading unit is dismounted from the transmission apparatus main body. Further, a sheet element made of a material of a low coefficient of friction, as opposed to the original, may be disposed at a position corresponding to the mounted state of the image reading unit on the transmission apparataus main body. Further, an image data transmission apparatus is disclosed which possesses the telephone function and copy function, and is also provided with, as desired, a facsimile function by mounting a detachable facsimile processing device in the transmission apparatus main body. Further, the operation panel may be, in order to use it as the original stacker, disposed angularly dislocatably around the axial line crossing with the original inserting direction.

Growing community of inventors

Nara, Japan

Katsuyuki Sakai