Abstract: An image forming apparatus includes a plurality of paper feed portions, an image forming portion, a storage portion that stores, for each of the paper feed portions, sheet delay information indicating an occurrence frequency of a sheet delay that is a phenomenon in which a time required for arrival of a front end of the sheet at a prescribed position from the start of feeding of the sheet is larger than a threshold time, and a control portion that, based on the sheet delay information on the each of the paper feed portions, recognizes the occurrence frequency of a sheet delay of each of the plurality of paper feed portions and preferentially sets, as a paper feed source, one of the paper feed portions whose value of the occurrence frequency of a sheet delay is equal to or less than a prescribed value.

Abstract: An image forming apparatus includes a plurality of paper feed portions, an image forming portion, a storage portion that stores, for each of the paper feed portions, sheet delay information indicating an occurrence frequency of a sheet delay that is a phenomenon in which a time required for arrival of a front end of the sheet at a prescribed position from the start of feeding of the sheet is larger than a threshold time, and a control portion that, based on the sheet delay information on the each of the paper feed portions, recognizes the occurrence frequency of a sheet delay of each of the plurality of paper feed portions and preferentially sets, as a paper feed source, one of the paper feed portions whose value of the occurrence frequency of a sheet delay is equal to or less than a prescribed value.

Abstract: A dot-count calculation section counts the number of dots that are printed, and calculates an amount of toner consumed in a developing device (toner consumption amount). A toner supply amount calculation section calculates an amount of toner supplied to the developing device by the toner supply mechanism (toner supply amount). A cumulative toner supply amount holding section holds a cumulative toner supply amount. A correction toner supply amount calculation section calculates a used amount of the toner in the toner case (correction toner supply amount), based on the toner consumption amount and the toner supply amount. A cumulative toner supply amount updating section adds the correction toner supply amount and the cumulative toner supply amount, and stores a value resulting from the addition in the cumulative toner supply amount holding section, as a new cumulative toner supply amount.

Abstract: An image forming apparatus includes an image forming section including a developing section, a toner container mountable to and removable from the image forming apparatus, an intermediate hopper for replenishing toner supplied from the toner container to the developing section, a toner remaining amount detection sensor for detecting a remaining amount of the toner in the intermediate hopper, a cover to be opened and closed when the toner container is mounted and removed, an opening/closing detection sensor for detecting an operation of opening and closing the openable and closable cover, and a main control section. During a print job, the main control section continues image formation when the cover is opened and an amount of the toner is less than a predetermined amount. Further, the main control section halts the image formation when the cover is opened and the amount of the toner is the predetermined amount or more.

Abstract: A dot-count calculation section counts the number of dots that are printed, and calculates an amount of toner consumed in a developing device (toner consumption amount). A toner supply amount calculation section calculates an amount of toner supplied to the developing device by the toner supply mechanism (toner supply amount). A cumulative toner supply amount holding section holds a cumulative toner supply amount. A correction toner supply amount calculation section calculates a used amount of the toner in the toner case (correction toner supply amount), based on the toner consumption amount and the toner supply amount. A cumulative toner supply amount updating section adds the correction toner supply amount and the cumulative toner supply amount, and stores a value resulting from the addition in the cumulative toner supply amount holding section, as a new cumulative toner supply amount.

Abstract: An image forming apparatus includes: a developing unit; an intermediate hopper including a toner detector, for replenishing the developing unit with toner; a container that replenishes toner to the intermediate hopper and includes a replenishment amount storage unit for storing an accumulated toner replenishment amount; a control unit for determining whether or not the container is empty and whether or not the container has been replaced; a reader/writer for causing the replenishment amount storage unit to update the accumulated toner replenishment amount; and a storage unit for storing an integrated value of toner replenishment amounts in a container empty mode, and the reader/writer causes the replenishment amount storage unit of the container after being replaced to store the accumulated toner replenishment amount.

Abstract: An image forming apparatus includes an image forming section including a developing section, a toner container mountable to and removable from the image forming apparatus, an intermediate hopper for replenishing toner supplied from the toner container to the developing section, a toner remaining amount detection sensor for detecting a remaining amount of the toner in the intermediate hopper, a cover to be opened and closed when the toner container is mounted and removed, an opening/closing detection sensor for detecting an operation of opening and closing the openable and closable cover, and a main control section. During a print job, the main control section continues image formation when the cover is opened and an amount of the toner is less than a predetermined amount. Further, the main control section halts the image formation when the cover is opened and the amount of the toner is the predetermined amount or more.

Abstract: An image forming apparatus includes: a developing unit; an intermediate hopper including a toner detector, for replenishing the developing unit with toner; a container that replenishes toner to the intermediate hopper and includes a replenishment amount storage unit for storing an accumulated toner replenishment amount; a control unit for determining whether or not the container is empty and whether or not the container has been replaced; a reader/writer for causing the replenishment amount storage unit to update the accumulated toner replenishment amount; and a storage unit for storing an integrated value of toner replenishment amounts in a container empty mode, and the reader/writer causes the replenishment amount storage unit of the container after being replaced to store the accumulated toner replenishment amount.

Abstract: An image forming apparatus of the present invention includes an image carrier, an intermediate transfer part, a primary transfer part, a secondary transfer part, and a transfer area change part. The image carrier is configured to carry a visible image formed with developer. The primary transfer part is configured to transfer the visible image from the image carrier to a transfer area on the intermediate transfer part. The secondary transfer part is configured to transfer the visible image from the intermediate transfer part to a recording medium. The transfer area change part is configured to change the transfer area.

Abstract: A multilayered volume hologram structure of the invention comprises a substrate 2 for a certificate or the like, and an adhesive layer 5, a volume hologram layer 5 and a surface protective film 7 laminated on the substrate in the described order. When a multilayer structure consisting of the volume hologram layer 5 and surface protective layer 5 is forcibly released from the substrate for the purpose of making a photograph replacement or falsifying a personal information area, the volume hologram image can break down certainly, thereby ensuring prevention of falsification. A multilayered volume hologram structure-making label is useful for making a multilayered volume hologram structure.

Abstract: An image forming apparatus of the present invention includes an image carrier, an intermediate transfer part, a primary transfer part, a secondary transfer part, and a transfer area change part. The image carrier is configured to carry a visible image formed with developer. The primary transfer part is configured to transfer the visible image from the image carrier to a transfer area on the intermediate transfer part. The secondary transfer part is configured to transfer the visible image from the intermediate transfer part to a recording medium. The transfer area change part is configured to change the transfer area.

Abstract: A method of fabricating a hologram having a pattern made up of pixels in which a photosensitive material for forming a hologram is stacked on either a reflection-type hologram or a transmission type hologram. According to one aspect of the invention, the photosensitive material is stacked on a reflection-type relief hologram and reconstructing illumination light of a given wavelength is struck on the reflection-type relief hologram through the photosensitive material, so that interference fringes produced by interference of the light diffracted from the reflection type relief hologram and the incident light are recorded in the photosensitive material.

Abstract: A method of fabricating a hologram having a pattern made up of pixels in which a photosensitive material for forming a hologram is stacked on either a reflection-type hologram or a transmission type hologram. According to one aspect of the invention, the photosensitive material is stacked on a reflection-type relief hologram and reconstructing illumination light of a given wavelength is struck on the reflection-type relief hologram through the photosensitive material, so that interference fringes produced by interference of the light diffracted from the reflection type relief hologram and the incident light are recorded in the photosensitive material.

Abstract: A multilayered volume hologram structure of the invention comprises a substrate 2 for a certificate or the like, and an adhesive layer 5, a volume hologram layer 5 and a surface protective film 7 laminated on the substrate in the described order. When a multilayer structure consisting of the volume hologram layer 5 and surface protective layer 5 is forcibly released from the substrate for the purpose of making a photograph replacement or falsifying a personal information area, the volume hologram image can break down certainly, thereby ensuring prevention of falsification. A multilayered volume hologram structure-making label is useful for making a multilayered volume hologram structure.

Abstract: A multilayered volume hologram structure of the invention comprises a substrate 2 for a certificate or the like, and an adhesive layer 5, a volume hologram layer 5 and a surface protective film 7 laminated on the substrate in the described order. When a multilayer structure consisting of the volume hologram layer 5 and surface protective layer 5 is forcibly released from the substrate for the purpose of making a photograph replacement or falsifying a personal information area, the volume hologram image can break down certainly, thereby ensuring prevention of falsification. A multilayered volume hologram structure-making label is useful for making a multilayered volume hologram structure.

Abstract: A multilayered volume hologram structure of the invention comprises a substrate 2 for a certificate or the like, and an adhesive layer 5, a volume hologram layer 5 and a surface protective film 7 laminated on the substrate in the described order. When a multilayer structure consisting of the volume hologram layer 5 and surface protective layer 5 is forcibly released from the substrate for the purpose of making a photograph replacement or falsifying a personal information area, the volume hologram image can break down certainly, thereby ensuring prevention of falsification. A multilayered volume hologram structure-making label is useful for making a multilayered volume hologram structure.

Abstract: A reflection type color display device and a reflection type of direct-view color display device are provided. The reflection type color display device includes a spatial light modulator having a collection of pixels and a controllable transmittance per pixel, with a reflection type hologram color filter located on the back side of the modulator. The reflection type of direct-view color display device includes a hologram color filter which has an array of light-collecting holograms. Each of the light-collecting holograms has its own hologram color filter, reflection type hologram, and transmission type spatial light modulator located between the hologram color filter and the reflection type hologram.

Abstract: A multilayered volume hologram structure of the invention comprises a substrate 2 for a certificate or the like, and an adhesive layer 5, a volume hologram layer 5 and a surface protective film 7 laminated on the substrate in the described order. When a multilayer structure consisting of the volume hologram layer 5 and surface protective layer 5 is forcibly released from the substrate for the purpose of making a photograph replacement or falsifying a personal information area, the volume hologram image can break down certainly, thereby ensuring prevention of falsification. A multilayered volume hologram structure-making label is useful for making a multilayered volume hologram structure.

Abstract: A multilayered volume hologram structure of the invention comprises a substrate 2 for a certificate or the like, and an adhesive layer 5, a volume hologram layer 5 and a surface protective film 7 laminated on the substrate in the described order. When a multilayer structure consisting of the volume hologram layer 5 and surface protective layer 5 is forcibly released from the substrate for the purpose of making a photograph replacement or falsifying a personal information area, the volume hologram image can break down certainly, thereby ensuring prevention of falsification. A multilayered volume hologram structure-making label is useful for making a multilayered volume hologram structure.

Abstract: A multilayered volume hologram structure of the invention comprises a substrate 2 for a certificate or the like, and an adhesive layer 5, a volume hologram layer 5 and a surface protective film 7 laminated on the substrate in the described order. When a multilayer structure consisting of the volume hologram layer 5 and surface protective layer 5 is forcibly released from the substrate for the purpose of making a photograph replacement or falsifying a personal information area, the volume hologram image can break down certainly, thereby ensuring prevention of falsification. A multilayered volume hologram structure-making label is useful for making a multilayered volume hologram structure.