摘要:
An electrophotographic image forming apparatus is usable with a process cartridge having an electrophotographic photosensitive member. The apparatus includes a transfer member contactable to the photosensitive member to transfer a toner image from the photosensitive member thereonto, a tray carrying the cartridge and movable between a contact position where the photosensitive member contacts the transfer member and a spaced position spaced from the transfer member, a supporting member supporting the tray for movement parallel with a tangent line between the photosensitive member and the transfer member between a first position positioning the tray at the contact position and a second position retracted from the first position away from the transfer member in a perpendicular direction perpendicular to the photosensitive-member axial direction and to the tangent line to position the tray at the spaced position, and engageable and engaging portions engageable with each other. The engaging portion regulates movement of the tray.
摘要:
An electrophotographic image forming apparatus is usable with a process cartridge having a photosensitive member. The apparatus includes a transfer member contactable to the photosensitive member to transfer a toner image from the photosensitive member thereonto, a tray carrying the cartridge and movable between a contact position where the photosensitive member contacts the transfer member and a spaced position spaced from the transfer member, a supporting member supporting the tray for movement parallel with a tangent line between the photosensitive member and the transfer member between a first position positioning the tray at the contact position and a second position retracted from the first position away from the transfer member in a perpendicular direction perpendicular to the photosensitive-member axial direction and to the tangent line to position the tray at the spaced position; and engageable and engaging portions engageable with each other. The engaging portion regulates movement of the tray.
摘要:
An electrophotographic image forming apparatus detachably mounts a process cartridge including an electrophotographic photosensitive drum. The apparatus includes a frame, a door, and a tray carrying the cartridge. The tray is movable among a first position inside the frame when the door is closed and the drum forms a latent image, a second position when the door is open and the tray protrudes from the frame to permit cartridge mounting and demounting, and a third position between the first and second positions where the tray is movable to the first position with closing of the door. Also, a regulating member moves between a regulating position regulating movement of the door from an opening position to a position where the tray is beyond the third position, and a permitting position permitting movement of the door from the opening to the closing position when the tray is at the third position.
摘要:
An electrophotographic image forming apparatus to which a process cartridge including an electrophotographic photosensitive drum is detachably mountable, the electrophotographic image forming apparatus includes a main assembly frame having an opening; a main assembly door movable between a closing position for closing the opening and an opening position for opening the opening; a tray for carrying the cartridge, the tray is movable among a latent image formation position which is inside the main assembly frame and is taken when the main assembly door is at the closing position and in which a latent image can be formed on the drum, a mounting and demounting position which is taken when the main assembly door is at the opening position in which the tray is protruded out of the main assembly frame through opening to permit mounting and demounting of the cartridge thereto, and a movable position which is between the mounting and demounting position and the latent image formation position in which the tray is movable to the latent image formation position in interrelation with movement of the main assembly door from the opening position to the closing position; a regulating member movable between a regulating position for regulating movement of the main assembly door from the opening position to the position when the tray is a mounting and demounting position side beyond the movable position, and a permitting position for permitting movement of the main assembly door from the opening position to the closing position when the tray is at the movable position.
摘要:
In an image forming apparatus, when the openable and closable member is closed, the regulating member is mounted to the main body of the apparatus in a second state that is elastically changed from a first state; when the openable and closable member is opened, the regulating member is elastically returned to the first state; in this state, when the openable and closable member is closed, an abutting portion of the openable and closable member abuts on an abutting portion of the regulating member to regulate the openable and closable member from closing. A direction of pressing caused when the abutting portion of the openable and closable member abuts on the abutting portion of the regulating member is different from a direction in which the abutting portion of the regulating member moves when the regulating member changes from the first state to the second state.
摘要:
A wire-grid polarizer having a high polarization separation ability in the visible light region and an improved transmittance in a short wavelength region, and a process for easily producing such a wire-grid polarizer, are provided.A wire-grid polarizer 10 comprising a light-transmitting substrate 14 having a surface on which a plurality of ridges 12 are formed in parallel with one another at a predetermined pitch; an underlayer 22 made of a metal oxide and present at least on a top portion of each ridge 12; and a metal wire made of a metal layer 24 and present on a surface of the underlayer 22 to cover at least a top portion of each ridge 12.
摘要:
The present invention provides a wire-grid polarizer showing high polarization separation ability in the visible light region and is excellent in heat resistance and durability; and a process for producing such a wire-grid polarizer with high productivity, which enables to produce a polarizer of large area.A process for producing a wire-grid polarizer, comprising a step of coating a supporting substrate with a photocurable composition, a step of pressing a mold having a plurality of parallel grooves at a constant pitch against the photocurable composition so that the grooves contact with the photocurable composition, a step of curing the photocurable composition in a state that the mold is pressed against the photocurable composition, to form a light-transmitting substrate having a plurality of ridges corresponding to the grooves of the mold, a step of separating the mold from the light-transmitting substrate, and a step of forming fine metalic wires on the ridges of the light-transmitting substrate.
摘要:
A novel photochromic liquid crystal comprising a diarylethene compound having both photochromic properties and liquid crystallinity. This compound is a photochromic diarylethene compound having a mesogen group in each of the two aryl groups. The photochromic liquid crystal provides a large change in birefringence by photoisomerization or phase transition, and has high durability against repeated changes in birefringence. A side-chain polymer liquid crystal containing the above photochromic liquid crystal is useful as an optical recording material. Such an optical recording material is capable of performing light modulation by irradiation with light near Tc thereof, and is applicable to photo operator devices, optical memories, and the like. Further, the optical recording material is useful as a material for a recording layer of an optical recording medium such as an optical disk or an optical memory card.
摘要:
An N.sup.- silicon layer is epitaxially grown on an oxide film with predetermined openings disposed on one main face of an N.sup.+ silicon substrate to form monocrystalline portions on the openings and polycrystalline portions on the oxide film. Ion implantation and thermal annealing is used to convert the polycrystalline portions to P.sup.+ external base regions and form P.sup.+ internal base regions in the monocrystalline portions. Arsenic ions are selectively implanted into the internal base regions to form N.sup.+ emitter regions. Then, base and emitter electrodes are formed on the external base and emitter regions so as to be electrically insulated from one another by an oxide film and a collector electrode is formed on the other main face of the substrate.
摘要:
A laminate of the present invention includes a first transparent resin layer, a first polymer liquid crystal layer, a second transparent resin layer, and a second polymer liquid crystal layer. A process for producing the laminate involves curing a resin to form the first transparent resin layer with certain liquid crystal alignment properties. The process then involves forming the first liquid crystal layer from a curable liquid crystalline monomer or a crosslinkable polymer liquid crystal on the first transparent resin layer. The first liquid crystal layer has the liquid crystal alignment properties of the first transparent resin layer. Next, the process involves forming a second transparent resin layer with different liquid crystal alignment properties on the first polymer liquid crystal layer, then forming a second polymer liquid crystal layer on the second transparent resin layer in the same manner.