Abstract: A cabinet with a lock includes a cabinet in which a server is accommodated, a first locking mechanism which does not allow the server to be taken out of the cabinet with a locking manipulation, and a second locking mechanism which locks a position of the cabinet or a position of the server in coordination with a locking operation by the first locking mechanism.

Abstract: A cabinet with a lock includes a cabinet in which a server is accommodated, a first locking mechanism which does not allow the server to be taken out of the cabinet with a locking manipulation, and a second locking mechanism which locks a position of the cabinet or a position of the server in coordination with a locking operation by the first locking mechanism.

Abstract: An image forming apparatus indicates on a display a message prompting placement of paper, which is to be placed in a cassette, on a reading device and issuance of an instruction to start reading, in order to set a size of paper placed in the cassette. When touch of a button is detected after the message is indicated and a user operation giving an instruction to start reading is accepted, the image forming apparatus detects the size of placed paper using the reading device. The image forming apparatus then sets the size of paper placed in the cassette to the detected size.

Abstract: The rotation speed of an intermediary transfer belt 41 when it is brand-new is stored as a reference rotation speed. Registration patches Rk to Ry are formed to calculate displacement amounts, and based on the rotation speed difference between the rotation speed of the intermediary transfer belt 41 and the reference rotation speed, the calculated displacement amounts are corrected into displacement amounts expected when the secondary transfer roller 42 is contacted with the intermediary transfer belt 41. Next, based on the corrected displacement amounts, the positions at which exposing devices 60K to 60Y form electrostatic latent images are corrected. Thus, registration correction can be performed accurately without requiring too much time or toner, with consideration given to the difference in the rotation speed of the intermediary transfer belt 41 depending on whether the secondary transfer roller 42 is contacted with or released from the intermediary transfer belt 41.

Abstract: An image forming apparatus indicates on a display a message prompting placement of paper, which is to be placed in a cassette, on a reading device and issuance of an instruction to start reading, in order to set a size of paper placed in the cassette. When touch of a button is detected after the message is indicated and a user operation giving an instruction to start reading is accepted, the image forming apparatus detects the size of placed paper using the reading device. The image forming apparatus then sets the size of paper placed in the cassette to the detected size.

Abstract: There is provided a cleaning device for removing residual toner on an image carrier. The cleaning device includes a housing to cover a specified region of an image carrier. A first cleaning section and a second cleaning section are respectively placed in upper and lower parts of the housing partitioned by a partition member. The first cleaning section includes a first cleaning brush and a first regulating member. The second cleaning section includes a second cleaning brush and a second regulating member. The partition member substantially extends in a continuous manner with respect to a horizontal direction from the specified region to at least a position equivalent to an end portion on a housing sidewall side of the first or the second regulating member. A clearance exists between the housing sidewall and an end portion on the housing sidewall side of the partition member.

Abstract: The rotation speed of an intermediary transfer belt 41 when it is brand-new is stored as a reference rotation speed. Registration patches Rk to Ry are formed to calculate displacement amounts, and based on the rotation speed difference between the rotation speed of the intermediary transfer belt 41 and the reference rotation speed, the calculated displacement amounts are corrected into displacement amounts expected when the secondary transfer roller 42 is contacted with the intermediary transfer belt 41. Next, based on the corrected displacement amounts, the positions at which exposing devices 60K to 60Y form electrostatic latent images are corrected. Thus, registration correction can be performed accurately without requiring too much time or toner, with consideration given to the difference in the rotation speed of the intermediary transfer belt 41 depending on whether the secondary transfer roller 42 is contacted with or released from the intermediary transfer belt 41.

Abstract: There is provided a cleaning device for removing residual toner on an image carrier. The cleaning device includes a housing to cover a specified region of an image carrier. A first cleaning section and a second cleaning section are respectively placed in upper and lower parts of the housing partitioned by a partition member. The first cleaning section includes a first cleaning brush and a first regulating member. The second cleaning section includes a second cleaning brush and a second regulating member. The partition member substantially extends in a continuous manner with respect to a horizontal direction from the specified region to at least a position equivalent to an end portion on a housing sidewall side of the first or the second regulating member. A clearance exists between the housing sidewall and an end portion on the housing sidewall side of the partition member.

Abstract: It is an exemplified object of the present invention to provide an image-forming device that can form a high-quality multicolor image at relatively low cost. To achieve the above object, the inventive image-forming device includes an endless belt that conveys a recordable medium; plural image-forming units that form a toner layer on the recordable medium via the endless belt; and a fixer that fixes the toner layer on the recordable medium, and a first pressing force applicable to the recordable medium by a last image-forming unit at a downstream side along a direction in which the recordable medium is conveyed among the plural image-forming units is greater than a second pressing force applicable to the recordable medium by another image-forming unit adjacent to the last image-forming unit at the downstream side among the plural image-forming units.

Abstract: It is an exemplified object of the present invention to provide an image-forming device that can form a high-quality multicolor image at relatively low cost. To achieve the above object, the inventive image-forming device comprises an endless belt that conveys a recordable medium; plural image-forming units that form a toner layer on the recordable medium via the endless belt; and a fixer that fixes the toner layer on the recordable medium, and a first pressing force applicable to the recordable medium by a last image-forming unit at a downstream side along a direction in which the recordable medium is conveyed among the plural image-forming units is greater than a second pressing force applicable to the recordable medium by another image-forming unit adjacent to the last image-forming unit at the downstream side among the plural image-forming units.

Abstract: An image forming apparatus includes a transport mechanism transporting a recording medium on a belt which is transported at a constant speed in a transport direction, a plurality of electrostatic recording units arranged in the transport direction of the recording medium and transferring toner images of different colors, a positional error detecting part using the toner image of a reference color transferred by one of the electrostatic recording units as a reference image, and relatively detecting positional error information related to positional errors of the toner images of remaining colors transferred by the remaining electrostatic recording units with respect to the reference image, and a positional error correcting part relatively correcting the positional errors of the toner images transferred by the remaining electrostatic recording units based on the positional error information.

Abstract: An electrophotographic image forming apparatus includes an electrostatic latent image carrying body, an electric charger for uniformly electrifying the carrying body, an optical exposure unit to form an electrostatic latent image on the carrying body, a developer for developing the electrostatic latent image to form a toner image on the carrying body, a transfer unit for transferring the toner image from the carrying body onto a printing sheet, a fixing unit for fixing the toner image to the printing sheet, a cleaner for cleaning to remove residual toner from the carrying body and a toner returning mechanism for returning the residual toner removed by the cleaner to the developer. The developer includes a housing in which a toner chamber is defined, a developing roller rotatably mounted in the housing, an agitator rotatably mounted in the housing so as to be positioned in the toner chamber, a partitioning member provided in the housing for defining a carrier chamber adjacent to the developing roller.

Abstract: A drum phase correction unit for detecting rotational positions of a plurality of photosensitive drums by means of a plurality of drum position sensors and corrects to set rotational phases of the drums to predetermined phases in such a manner that transfer positions on drum circumferential surfaces relative to a belt when employing the thus detected rotational positions as their respective references have a specific relationship including coincidence. A positional offset detection unit detects positional offsets of transfer image on recording paper attributable to the wow and flutter in a drive system including the belt and the photosensitive drums. On the basis of the thus detected positional offsets, a wow and flutter correction unit corrects the positional offsets of the transfer images on the recording paper attributable to the wow and flutter.

Abstract: A drum phase correction unit for detecting rotational positions of a plurality of photosensitive drums by means of a plurality of drum position sensors and corrects to set rotational phases of the drums to predetermined phases in such a manner that transfer positions on drum circumferential surfaces relative to a belt when employing the thus detected rotational positions as their respective references have a specific relationship including coincidence. A positional offset detection unit detects positional offsets of transfer image on recording paper attributable to the wow and flutter in a drive system including the belt and the photosensitive drums. On the basis of the thus detected positional offsets, a wow and flutter correction unit corrects the positional offsets of the transfer images on the recording paper attributable to the wow and flutter.

Abstract: A toner developing quantity detection unit operates a plurality of electrostatic recording units to transfer Y, M, C and K color component toner marks onto a belt. A toner developing quantity correction unit detects toner developing quantities per unit area of color toners on the basis of detection signals of the color component toner marks on the belt optically detected by a sensor. The toner developing quantity correction unit corrects the toner developing quantities so as to allow the toner consuming quantities of the plurality of electrostatic recording units to be substantially the same level, on the basis of the thus detected toner developing quantities.

Abstract: An electrophotographic image forming apparatus includes an electrostatic latent image carrying body, an electric charger for uniformly electrifying the carrying body, an optical exposure unit to form an electrostatic latent image on the carrying body, a developer for developing the electrostatic latent image to form a toner image on the carrying body, a transfer unit for transferring the toner image from the carrying body onto a printing sheet, a fixing unit for fixing the toner image to the printing sheet, a cleaner for cleaning to remove residual toner from the carrying body and a toner returning mechanism for returning the residual toner removed by the cleaner to the developer. The developer includes a housing in which a toner chamber is defined, a developing roller rotatably mounted in the housing, an agitator rotatably mounted in the housing so as to be positioned in the toner chamber, a partitioning member provided in the housing for defining a carrier chamber adjacent to the developing roller.

Abstract: An electrophotographic image forming apparatus includes an electrostatic latent image carrying body, an electric charger for uniformly electrifying the carrying body, an optical exposure unit to form an electrostatic latent image on the carrying body, a developer for developing the electrostatic latent image to form a toner image on the carrying body, a transfer unit for transferring the toner image from the carrying body onto a printing sheet, a fixing unit for fixing the toner image to the printing sheet, a cleaner for cleaning to remove residual toner from the carrying body and a toner returning mechanism for returning the residual toner removed by the cleaner to the developer. The developer includes a housing in which a toner chamber is defined, a developing roller rotatably mounted in the housing, an agitator rotatably mounted in the housing so as to be positioned in the toner chamber, a partitioning member provided in the housing for defining a carrier chamber adjacent to the developing roller.

Abstract: A mounting mechanism for a ribbon cassette for mounting the ribbon cassette on a carrier of a printer having a pair of resiliently deformable arms which are formed in such a manner as to extend forwardly along the opposite side walls from a rear end of the ribbon cassette, and a pin is formed in an integrated relationship on each of the arms. A pair of holes for receiving the pins are formed on the carrier side of the printer, and the ribbon cassette is mounted onto the carrier by resiliently deforming the arms to fit the pins into the holes of the carrier.

Abstract: A ribbon cartridge with an ink ribbon for use in a printer. The printer includes a print head and a carrier, the carrier carrying the print head and ribbon cartridge along a printing position. The carrier has a mounting member for rotatably mounting a first end of the ribbon cartridge and a guide member for positioning a second end of the ribbon cartridge such that the ink ribbon is disposed between the print head and printing position. The second end of the ribbon cartridge has an opening for exposing a part of the ink ribbon loaded in the body of the cartridge. The ribbon cartridge includes a biasing member for producing a force to bias the ribbon cartridge against the guide member by elastic deformation of the biasing member in contact with a part of the carrier. The biasing member is integrally formed as part of the ribbon cartridge, thus eliminating additional and separate components and reducing part and assembling costs.