摘要:
A main body casing of a ventilator is formed with an outer airflow opening and an inner airflow opening and a ventilating path for connecting these airflow openings is formed in the main body casing. The ventilator ventilates a room and prevents entry of noise from outside into the room through the ventilating path. The ventilating path is bifurcated and these two ventilating paths have different lengths from each other so that a noise sound wave entering through one of the ventilating paths and a noise sound wave entering through the other ventilating path are out of phase with each other to cancel out each other's sound wave energy when the sound waves meet.
摘要:
An electrophotographic image forming apparatus detachably mountable to a main assembly of the apparatus, includes a rotatable image bearing member on which a latent image is to be formed; charging means for contacting said image bearing member to charge a surface of said image bearing member; a frame supporting said image bearing member and said charging means; a covering member, demountably mounted to said frame, for protecting the surface of said image bearing member; and a spacer member including a spacing portion, movably provided on said covering member, for entering between said image bearing member and said charging means to space them therebetween, and a retaining portion, contacting said covering member when said spacing portion is not between said image bearing member and said charging means, for preventing said spacer member from disengaging from said covering member.
摘要:
An image forming apparatus includes an image bearing member, a plurality of development cartridges each having a developer bearing member bearing a developer for developing an electrostatic image and a developer container accommodating the developer, a rotary configured to rotate and move the attached development cartridges toward a development position, an opening defined in an apparatus main body and allowing the development cartridge to pass through for attachment and detachment to and from the rotary, and an indicator provided on a second development cartridge arranged adjacent to a first development cartridge passing through the opening and detached from the rotary being stopped, wherein the indicator indicates an attachment method usable to attach the first development cartridge to the rotary, and wherein the indicator is located at such a position on the second development cartridge as to be visible from outside of the apparatus main body via the opening.
摘要:
A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes a developer carrying member for developing an electrostatic latent image formed on an image bearing member, and an electroconductive developer layer thickness regulating member for regulating a layer thickness of a developer deposited on the developer carrying member. A part of the developer layer thickness regulating member is directly contactable to the main assembly electrical contact.
摘要:
The method for producing a semiconductor chip with an adhesive film of the present invention comprises steps of preparing a laminate in which at least a divided semiconductor wafer comprising a plurality of semiconductor chips, obtained by forming a cut which separates the semiconductor wafer into a plurality of semiconductor chips on one side of the semiconductor wafer in a thickness less than that of the semiconductor wafer and by grinding the other side of the semiconductor wafer on which no cut is formed to reach the cut, an adhesive film for a semiconductor and a dicing tape are laminated, the adhesive film for a semiconductor having a thickness in the range of 1 to 15 μm and a tensile elongation at break of less than 5%, and the tensile elongation at break being less than 110% of the elongation at a maximum load; and dividing the adhesive film for a semiconductor by picking up the plurality of semiconductor chips in a laminating direction of the laminate, thereby preparing a semiconductor chip with an adhesive film.
摘要:
A method for producing a semiconductor chip with an adhesive film, which includes: preparing a laminate in which a semiconductor wafer, an adhesive film and a dicing tape are laminated in that order, the adhesive film having a thickness in the range of 1 to 15 μm and a tensile elongation at break of less than 5%, and the tensile elongation at break being less than 110% of the elongation at a maximum load, and the semiconductor wafer having a section, for dividing the semiconductor wafer into a plurality of semiconductor chips, which is formed by irradiating with laser light; dividing the semiconductor wafer into a plurality of semiconductor chips without dividing the adhesive film, by expanding the dicing tape; and dividing the adhesive film by picking up the plurality of semiconductor chips.
摘要:
A developing cartridge detachably mountable to a main assembly of an image forming apparatus includes a frame; a developer carrying member, provided on the frame, for carrying a developer for developing an electrostatic image; a first portion to be engaged provided on one side of the frame with respect to a direction crossing an axial direction of the developer carrying member; a second portion to be engaged provided on the other side of the frame with respect to the direction crossing the axial direction of the developer carrying member; and a cover member, including a first engaging portion engaging with the first portion to be engaged and including a second engaging portion engaging with the second portion to be engaged, for covering an exposed portion of the developer carrying member by being detachably mounted to the frame. The cover member is detachably mountable to the frame by engaging the first engaging portion with second portion to be engaged and by engaging the second engaging portion with the first portion to be engaged.
摘要:
An image forming apparatus includes an image bearing member, a plurality of development cartridges each having a developer bearing member bearing a developer for developing an electrostatic image and a developer container accommodating the developer, a rotary configured to rotate and move the attached development cartridges toward a development position, an opening defined in an apparatus main body and allowing the development cartridge to pass through for attachment and detachment to and from the rotary, and an indicator provided on a second development cartridge arranged adjacent to a first development cartridge passing through the opening and detached from the rotary being stopped, wherein the indicator indicates an attachment method usable to attach the first development cartridge to the rotary, and wherein the indicator is located at such a position on the second development cartridge as to be visible from outside of the apparatus main body via the opening.
摘要:
An electrophotographic image forming apparatus detachably mountable to a main assembly of the apparatus, includes a rotatable image bearing member on which a latent image is to be formed; charging means for contacting said image bearing member to charge a surface of said image bearing member; a frame supporting said image bearing member and said charging means; a covering member, demountably mounted to said frame, for protecting the surface of said image bearing member; and a spacer member including a spacing portion, movably provided on said covering member, for entering between said image bearing member and said charging means to space them therebetween, and a retaining portion, contacting said covering member when said spacing portion is not between said image bearing member and said charging means, for preventing said spacer member from disengaging from said covering member.
摘要:
A cartridge detachably mountable to a main assembly of an image forming apparatus, the main assembly including a main assembly electrical contact, includes a roller including an electroconductive shaft, the roller being rotatable with the shaft; and a supporting member rotatably supporting the shaft and provided with a hole portion for exposing a part of a surface of a longitudinal end of the shaft to directly contact the part to the main assembly electrical contact and an end surface positioning portion for determining a position of the end surface with respect to a longitudinal direction of the shaft by contacting another part of the end surface.