Abstract: Provided are a fluorine-containing ether compound that can form a surface layer that excels in durability and a method of manufacturing the same, a fluorine-containing ether composition and a coating liquid, and an article having a surface layer that excels in durability and a method of manufacturing the same. A fluorine-containing ether compound is expressed by the following formula (A1) or (A2): {RfO—(Rf1O)m1—(R1)m2—(CHF)m3—O—(CHF)m4}n1-Q1(-T1)n2?? Formula (A1) (T2)n3-Q2-(CHF)m5—O—(CHF)m6—(R2)m7—O—(Rf2O)m8—(R3)m9—(CHF)m10—O—(CHF)m11-Q3(-T3)n4??Formula (A2), in the above, the symbols in the formulas are as described in the specification.

Abstract: Provided are: a fluorine-containing ether compound, a fluorine-containing ether composition, and a coating liquid that are capable of forming a surface layer having excellent durability; and an article that has a surface layer having excellent durability. The present invention provides a fluorine-containing ether compound represented by formula (A1) or formula (A2) below. RfO—(Rf1O)m—R1-L1-R2-Q1(-T)n??formula (A1) (T-)nQ1-R2-L1-R1—O—(Rf1O)m—R1-L1-R2-Q1(-T)n??formula (A2) In the formulae, symbols are as defined in the description.

Abstract: Provided are a fluorine-containing ether compound, a fluorine-containing ether composition, and a coating liquid, which can form a surface layer having excellent durability, and an article and production method thereof having a surface layer that has excellent durability and that can maintain water and oil repellency, lubricity, and fingerprint stain removability for a long time. The fluorine-containing ether compound includes a polyfluoropolyether chain, a reactive silyl group, and a linking group that includes a group represented by *—O—C(?O)—**, in which the linking group links the polyfluoropolyether chain arranged on the * side and the reactive silyl group arranged on the ** side.

Abstract: A fluorinated ether compound and a composition capable of forming a light resistant surface layer and an article are provided. The fluorinated ether compound of the present invention has a poly(oxyfluoroalkylene) chain, a reactive silyl group and a group (A) represented by —NR—C(O)— (wherein R is a hydrogen atom or an alkyl group), wherein the carbonyl carbon in the group (A) is bonded to a carbon atom, and the poly(oxyfluoroalkylene) chain is located at the nitrogen end of the group (A).

Abstract: A photo interrupter unit includes a photo interrupter and a supporting portion configured to support the photo interrupter detachably. The photo interrupter includes a light emitting portion configured to emit light, a photo sensing portion configured to receive the light emitted from the light emitting portion, and a claw portion configured to be elastically deformable. The supporting portion includes a mounting surface on which the photo interrupter is mounted, a hole portion defining a hole into which the claw portion is inserted, provided in the mounting surface and configured to engage with the claw portion, and a projection projecting from the mounting surface, and configured to regulate a position of the photo interrupter in a deforming direction in which the claw portion is elastically deformable in a state where the claw portion and the hole portion are engaged.

Abstract: A photo interrupter unit includes a photo interrupter and a supporting portion configured to support the photo interrupter detachably. The photo interrupter includes a light emitting portion configured to emit light, a photo sensing portion configured to receive the light emitted from the light emitting portion, and a claw portion configured to be elastically deformable. The supporting portion includes a mounting surface on which the photo interrupter is mounted, a hole portion defining a hole into which the claw portion is inserted, provided in the mounting surface and configured to engage with the claw portion, and a projection projecting from the mounting surface, and configured to regulate a position of the photo interrupter in a deforming direction in which the claw portion is elastically deformable in a state where the claw portion and the hole portion are engaged.

Abstract: A particle adhesion preventing member used for an image forming apparatus that forms an image using charged toner, and configured to prevent adhesion of the charged toner, includes a conductive member, and an insulating member that is attached to the conductive member, including a porous member made of an ethylene propylene diene ternary copolymer having a density of 0.01 g/cm3 or more and 0.2 g/cm3 or less or silicon having a density of 0.01 g/cm3 or more and 0.3 g/cm3 or less, and being negatively charged with negatively charged particles adhering onto a surface thereof.

Abstract: A particle adhesion preventing member used for an image forming apparatus that forms an image using charged toner, and configured to prevent adhesion of the charged toner, includes a conductive member, and an insulating member that is attached to the conductive member, including a porous member made of an ethylene propylene diene ternary copolymer having a density of 0.01 g/cm3 or more and 0.2 g/cm3 or less or silicon having a density of 0.01 g/cm3 or more and 0.3 g/cm3 or less, and being negatively charged with negatively charged particles adhering onto a surface thereof.

Abstract: A main power supply and a backup power supply have the same set voltage. To prevent electrical power from being supplied from the backup power supply to a load circuit, during a normal operation, a power supply control unit gives a standby instruction to the backup power supply so that the backup power supply is on standby at a voltage lower than that of the main power supply. When an AC power supply is stopped, the backup power supply is operated at the set voltage and the main power supply is stopped.

Abstract: A sheet post-processing apparatus which is capable of reliably producing desired labels and suppressing increases in user office expenses, job time, and environmental load. A laser cutting unit cuts a sheet being conveyed along a sheet conveying path or a sheet discharged onto a post-processing tray, with a laser beam, and a CPU circuit section and a sheet post-processing apparatus control section control the laser cutting unit such that the laser cutting unit cuts a label sheet as the sheet, based on layout information in a label sheet mode of the image forming apparatus.

Abstract: An image heating apparatus of electromagnetic induction heating-type capable of providing a proper relative heat-generation distance with a magnetic flux generation member even when the magnetic flux generation member is bent by its own weight or thermally deformed includes at least an exciting coil, a holder for holding the exciting coil, and a rotatable fixation roller for generating heat by magnetic flux from the exciting coil to heat a material to be heated. The holder has an outer diameter ?d1 at a central portion and an outer diameter ?d2 at an end portion in a longitudinal direction of the holder perpendicular to a conveyance direction of the material to be heated. The outer diameters ?d1 and ?d2 satisfies: ?d1<?d2.

Abstract: The present invention relates to an image forming apparatus comprising: an operating part which operates the image forming apparatus; an optional first speaker which outputs information guiding operation of the operating part; and a second speaker which outputs sound information that is different from operation guidance information; wherein when the first speaker and the second speaker disposed such that a surface of the first speaker is directed to a front surface of the image forming apparatus that is opposed to the operating part, and a surface of the second speaker is directed to a side surface of the image forming apparatus that is different from the first speaker.

Abstract: A main power supply and a backup power supply have the same set voltage. To prevent electrical power from being supplied from the backup power supply to a load circuit, during a normal operation, a power supply control unit gives a standby instruction to the backup power supply so that the backup power supply is on standby at a voltage lower than that of the main power supply. When an AC power supply is stopped, the backup power supply is operated at the set voltage and the main power supply is stopped.

Abstract: An image heating device has a magnetic flux generator, a heat generating element for generating heat by a magnetic flux from the magnetic flux generator; a magnetic flux confining member, the magnetic flux confining member including a magnetic flux confining portion for confining the magnetic flux directed toward a predetermined region of the heat generating element at a predetermined magnetic flux confining position and a connecting portion connecting with the magnetic flux confining portion in a longitudinal direction of the heat generating element to hold the magnetic flux confining portion; and a moving unit for moving the magnetic flux confining member to a magnetic flux confining position or to a retracted position where the magnetic flux confining member is retracted from the magnetic flux confining position, wherein the connecting portion has a regulating member for preventing movement to the magnetic flux confining position.

Abstract: An image heating member includes a first region having a Curie temperature higher than a preset temperature, and a second region having a Curie temperature lower than the Curie temperature of the first region. A width of the first region in a conveying direction of a recording material is equal to or larger than a width of the recording material of a maximum size to be fed. The second region is provided outside the first region.

Abstract: An image heating apparatus includes a heating roller for heating an image on a recording material; a coil unit disposed in said heating roller and including a coil for induction heat generation in said heating roller; a supporting member for rotatably supporting said heating roller, wherein said supporting member including a holding portion for substantially non-rotatably holding said coil unit.

Abstract: An image heating apparatus of electromagnetic induction heating-type capable of providing a proper relative heat-generation distance with a magnetic flux generation member even when the magnetic flux generation member is bent by its own weight or thermally deformed includes at least an exciting coil, a holder for holding the exciting coil, and a rotatable fixation roller for generating heat by magnetic flux from the exciting coil to heat a material to be heated. The holder has an outer diameter ?d1 at a central portion and an outer diameter ?d2 at an end portion in a longitudinal direction of the holder perpendicular to a conveyance direction of the material to be heated. The outer diameters ?d1 and ?d2 satisfies: ?d1<?d2.

Abstract: An image heating apparatus of electromagnetic induction heating-type capable of providing a proper relative heat-generation distance with a magnetic flux generation member even when the magnetic flux generation member is bent by its own weight or thermally deformed includes at least an exciting coil, a holder for holding the exciting coil, and a rotatable fixation roller for generating heat by magnetic flux from the exciting coil to heat a material to be heated. The holder has an outer diameter ?d1 at a central portion and an outer diameter ?d2 at an end portion in a longitudinal direction of the holder perpendicular to a conveyance direction of the material to be heated. The outer diameters ?d1 and ?d2 satisfies: ?d1<?d2.