Ricoh Company, Ltd.

Nec Corporation

Nippon Sheet Glass Company, Limited

Takashi Yokota

Satoru Tomita

Shigeru Yamazaki

Akira Shimura

Takayuki Andoh

Shigeru Suzuki

Takuji Takahashi

Yoshihide Ohta

Kohji Hatayama

Masaichi Niro

Yutaka Kodama

Takamasa Shiraki

Kunihiko Ikeda

Yoshiaki Kanmoto

Motoaki Kawazu

Takashi Hisada

Noboru Murayama

Youichi Hidaka

Masanori Takashima

Toshiyuki Inokuchi

Kazuyuki Suzuki

Tsugio Okamoto

Hisao Chikano

Tetsu Izawa

Masashi Hayashi

Koichi Tsuchiya

Shihomi Sato

Daisuke Abe

Minaxay Philavong

Sachiko Nishikawa

A single glass panel for a fire door and a double glazed glass panel for a fire door that have a fireproofness with which the glass sheet passes an international standard ISO 0834 flame insulating performance test and are as inexpensive as possible. For example, the single glass panel for a fire door is obtained by forming a heat reflecting coating with a low emissivity on at least one surface of a glass sheet that is a heat strengthened glass sheet or is more thermally strengthened than a heat strengthened glass sheet, and the double glazed glass panel for a fire door includes a first glass sheet (B) obtained by forming a heat reflecting coating () with an emissivity of 0.07 or less on at least one surface of a glass sheet that is a heat strengthened glass sheet or is more thermally strengthened than a heat strengthened glass sheet and a second glass sheet (C) that is a heat strengthened glass sheet or is a glass sheet more thermally strengthened than a heat strengthened glass sheet, the first glass sheet (B) and the second glass sheet (C) being arranged to face each other with a gap therebetween such that at least one layer of said heat reflecting coating () is placed between the two glass sheets (B) and (C).

Single glass panel for fire door and double glazed glass panel for fire door

In a switching node, high-speed and advanced service protocol processing function is achieved by utilizing an external control server without affecting performance of conventional service protocol processing. Specifically, a forwarding engine has PCI express and an LAN interface. Depending on a type of an input packet, destination of the packet is switched to the PCI express side for conventional network service and to the LAN interface side for extended network service that cooperates with the external control server. A CPU having the PCI express and the LAN interface is provided ahead of the LAN interface. The CPU performs communication of service inquiry with the external control server at high speed via the LAN interface. After response from the control server is obtained, setting of the forwarding engine is performed through the PCI express.

Communication control system, switching node, communication control method and communication control program including PCI express switch and LAN interface

An image forming apparatus that includes an image reading part to read an image of an original, an image recording part to record the image read by the image reading part on a sheet, a sheet discharge part to discharge the sheet recorded by the image recording part from front to rear of a main body of the image forming apparatus, a sheet stack part to stack the sheet discharged by the sheet discharge part between the image reading part and the image recording part, first and second supporters provided outside the sheet stack part along a discharge direction of the sheet to form a space between the sheet stack part and the image reading part, and a lock mechanism to lock the image reading part. The image reading part slides relative to the first and second supporters in the discharge direction.

Image forming apparatus

An image forming apparatus includes an image reading part configured to read image information on an original document, an image forming part configured to form an image on a sheet according to the image information, a sheet discharge part configured to discharge the sheet on which the image is formed from a front side to a backside of a main body, a sheet stack part onto which the sheet is discharged, and first and second supporters located outside the sheet stack part along a sheet discharge direction. The sheet stack part is located between the image reading part and the image forming part. The first and second supporters form a space between the sheet stack part and the image reading part. The second supporter is smaller than the first supporter in the sheet discharge direction.

Image forming apparatus including a reading part supported by first and second supporters

A compact printer has a sheet feeder positioned at its front wall and electrophotographic components arranged along a sheet moving path for receiving a sheet from the sheet feeder and for exposing, developing, then transferring a toner image onto the sheet. At its rear side, the printer has an image fixing unit and a discharge portion for discharging the sheet to a side output tray or onto the top wall of the printer. The discharge portion is provided with a detachably hinged, sheet turning apparatus when it is desired to discharge sheets onto the top wall, or with a detachably hinged cover with a rear opening to discharge sheets onto a rear side output tray.

Printer with face-down delivery of collated printed sheets at the top, and a manually removable PC/developer cartridge

Printer

An improvement in the structure for connecting various optional units to the body of a printer, copier or like recording apparatus and to each other. The optional units include a mass feed unit for feeding a large amount of paper sheets, a stack unit for stacking paper sheets discharged, and a re-feed unit for conditioning copies for re-feed. The optional units are accurately matched to each other and to the apparatus body when they are connected to the latter, without resorting to changes in the configuration of paper transport paths. Any of the units which has an outlet opening is provided with a device for changing the direction of transport of an outgoing paper sheet.

Paper feeding arrangement

When images are repeatedly recorded on a recording medium such as a single sheet of paper, the length of the second image to be recorded is varied dependent on the shrinkage factor of the recording medium which is derived from the period of time in which the recording medium is left from the time when the recording of the first image is completed to the time when the second image starts to be recorded. Positional deviation or size difference between the images which would otherwise be caused by the shrinkage of the recording medium upon repetitive image recording can be eliminated.

Double image recording method

A receptacle for detachably receiving a memory cassette is disclosed. A holder member reciprocates in unison with the movement of an openable cover member to hold the memory cassette thereon. Drive means is provided for driving the holder member in a reciprocal movement. The holder member includes means for locating the memory cassette. A protector is provided for protecting electric terminals of a memory cassette. The protector includes a casing and a fixing device for fixing the terminals of the memory cassette in position.

Receptacle for memory cassette

A receptacle for detachably receiving a memory cassette is disclosed. A holder member reciprocates in unison with the movement of an openable cover member to hold the memory cassette thereon. Drive means is provided for driving the holder member in a reciprocal movement. The holder member includes means for locating the memory cassette.

An apparatus for cleaning a recording medium is provided. The cleaning apparatus of the present invention is applicable to an electrophotographic or electrographic recording system. The present cleaning apparatus comprises a toner cleaner for removing residual toner particles from the surface of a recording medium, a counter member disposed on the opposite side of the recording medium with respect to the toner cleaner, and a mechanism for urging at least either one of the toner cleaner and the counter member against the other. Accordingly, the recording medium is kept in pressure contact with the toner cleaner so that cleaning of the recording medium may be carried out at upmost efficiency at all times. Besides, due to the provision of the urging mechanism, the alignment of parts is made less severe in assemblage of the apparatus, thus facilitating the manufacturing process.

Apparatus for cleaning a recording medium

A solid-state scanning apparatus for scanning the surface of an original to convert light information into electrical signals suitable for application to a facsimile system is provided. The scanning apparatus comprises a stationary original holder, on which an original to be scanned is placed, a stationary optical system including a solid-state line sensor comprised of at least two CCD image sensing devices arranged in a line to carry out the split scanning with a predetermined overlapping scanning section between the two adjacent scanning sections, a pair of first and second storing devices provided for each of said CCD image sensing devices, a control circuit for controlling the operation of the CCD image sensing devices and the storing devices, and a reciprocatingly movable mirror system for leading the light information of the original to the solid-state line sensor.

Solid-state scanning apparatus

A developing unit is adapted to be inserted into or withdrawn from a recording system and carries on a recording unit including a recording member in the form of an endless belt. A pair of rollers which support and drive the recording member as well as a developing sleeve which is utilized for converting a latent image formed on the record into a visual image are substantially aligned with each other in a direction which is parallel to the direction in which the developing unit is inserted or withdrawn. A transmission member is disposed at a location offset substantially perpendicular to such direction and transmits power from the recording system to one of the drive rollers which support the record. The power transmission takes place from the transmission member to the drive roller and then to the developing sleeve.

Apparatus for holding a recording member in the form of an endless belt

A recording system including a recording member of the endless belt form in which a series of information is recorded while the recording member is being moved, deviation sensing means operative to sense a deviation of the recording member, deviation correcting means operative to correct the deviation of the recording member, and a control circuit for actuating the deviation correcting means based on a signal generated by the deviation sensing means upon sensing the deviation. A deviation of the recording member of the endless belt form can be corrected without causing deformation of the recording member, and the recording system can be fabricated simply at low cost.

Recording system provided with a device for correcting deviation of

An original document for facsmile transmission or the like is fed over a horizontal transparent platen by rollers for scanning. A light source illuminates the document and a mirror reflects a light image of a linear portion of the document perpendicular to the direction of movement horizontally to a converging lens. The light image from the lens is reflected upwardly by another mirror onto the light receiving surface of a linear photosensor array. The light receiving surface of the array faces downwardly, minimizing accumulation of dust thereon. A light baffle in the form of a box is provided between the first mirror and converging lens and is formed with apertures for the light image to pass therethrough. A scan drive and amplifier circuit for the array is mounted closely adjacent thereto while a signal processing circuit comprising a quantization means is mounted on the box and electrically connected to the drive unit. The various units of the apparatus are individually detachable for ease of servicing. The arrangement of the various units prevents heat and stray light from the light source from reaching and affecting the array.

Growing community of inventors

Tokyo, Japan

Takashi Yokota