Abstract: A cleaning solution is a cleaning solution for cleaning an ink ejection surface of a recording head of an inkjet recording apparatus, including: water; a water-soluble organic solvent; an amphoteric surfactant having a betaine structure; a silicone surfactant; a nonionic surfactant other than the silicone surfactant; and an inorganic salt having a pH buffering effect. The cleaning solution has viscosity at 25° C. of 2.5 mPa·s or less. The cleaning solution has a static surface tension of 25 mN/m or less. The cleaning solution has a pH of 8.0 or more and 9.5 or less after being sealed and allowed to stand at room temperature for one year.

Abstract: A cleaning liquid penetration device includes an impregnated member and a holding member. The impregnated member is impregnated with a cleaning liquid. The holding member holds the impregnated member in a planar shape by a planer surface facing a nozzle surface of an inkjet head, and brings the planar-held portion of the impregnated member into contact with the nozzle surface. The holding member is more flexible than the nozzle surface.

Abstract: A cleaning liquid penetration device includes an impregnated member and a holding member. The impregnated member is impregnated with a cleaning liquid. The holding member holds the impregnated member in a planar shape, and brings the planar-held portion of the impregnated member into contact with a nozzle surface of an inkjet head. The planer-held portion of the impregnated member is wider than a region where an ejection port is provided on the nozzle surface.

Abstract: A cleaning method is a method of cleaning a recording head that has an ink-ejecting surface and ejects ink from the ink-ejecting surface. The cleaning method includes supplying a cleaning liquid to the ink-ejecting surface of the recording head, and wiping the ink-ejecting surface of the recording head twice with a wipe blade after the supplying a cleaning liquid. A first wiping speed in the wiping is 5 mm/sec or more and 25 mm/sec or less. A second wiping speed in the wiping is 45 mm/sec or more and 100 mm/sec or less. The cleaning liquid contains water, a water-soluble organic solvent, an amphoteric surfactant having a betaine structure, and a silicone surfactant. The viscosity of the cleaning liquid is 1.0 mPa·s or more and 3.1 mPa·s or less. The static surface tension of the cleaning liquid is 10 mN/m or more and 25 mN/m or less.

Abstract: An information processing apparatus includes a processor which executes an OS; a speaker which outputs a sound; a short-distance wireless communication unit which outputs first information indicating that a specific signal is received by short-distance wireless communication; an EC which outputs first sound data to output a sound in response to acquiring the first information output from the short-distance wireless communication unit; and an audio processing device which exclusively switches between the sound based on the first sound data output from the EC and a sound based on second sound data output from the processor by processing based on the OS in order to output either one of the sounds from the speaker. When acquiring the first information output from the short-distance wireless communication unit, the EC causes the audio processing device to output the sound based on the first sound data from the speaker.

Abstract: A cleaning liquid contains water, a specific organic solvent, and an acetylene surfactant. The specific organic solvent is at least one selected from the group consisting of polyhydric alcohol and polyalkylene glycol. The specific organic solvent has a percentage content of at least 1% by mass and no greater than 18% by mas to the mass of the cleaning liquid. The acetylene surfactant has a percentage content of at least 0.3% by mass and no greater than 1.0% by mass to the mass of the cleaning liquid.

Abstract: A communication setting method of enabling a first communication device and a second communication device that are shipped together as a set and are compliant with common wireless communication to be connected to each other by the wireless communication includes a step in which a storage controller in the first communication device causes a storage in the first communication device to store, at a predetermined stage before the shipping, communication connection information that is issued for the first communication device and includes predetermined identification information used for the connection; and a step in which a storage controller in the second communication device causes a storage in the second communication device to store, at a predetermined stage before the shipping, the same communication connection information as stored in the storage in the first communication device.

Abstract: A cleaning method is a method of cleaning a recording head that has an ink-ejecting surface and ejects ink from the ink-ejecting surface. The cleaning method includes supplying a cleaning liquid to the ink-ejecting surface of the recording head, and wiping the ink-ejecting surface of the recording head twice with a wipe blade after the supplying a cleaning liquid. A first wiping speed in the wiping is 5 mm/sec or more and 25 mm/sec or less. A second wiping speed in the wiping is 45 mm/sec or more and 100 mm/sec or less. The cleaning liquid contains water, a water-soluble organic solvent, an amphoteric surfactant having a betaine structure, and a silicone surfactant. The viscosity of the cleaning liquid is 1.0 mPa·s or more and 3.1 mPa·s or less. The static surface tension of the cleaning liquid is 10 mN/m or more and 25 mN/m or less.

Abstract: A heat-exchanger fixing plate fixes a side portion of a heat exchanger to a housing panel of an air-conditioning apparatus, the heat exchanger including a heat radiation fin and a heat transfer tube. The heat-exchanger fixing plate includes a heat-exchanger support portion facing the side portion of the heat exchanger, and having an insertion hole through which a hairpin portion of the heat transfer tube of the heat exchanger is inserted; and a housing-panel fixing portion separate from and fitted to the heat-exchanger support portion fastened with a screw to the housing panel such that the heat exchanger is fixed to the housing panel. The housing-panel fixing portion is made of material having a higher mechanical strength than that of the heat-exchanger support portion, and the heat-exchanger support portion is made of the material having a lower friction coefficient than that of the housing-panel fixing portion.

Abstract: An ink set includes an inkjet ink and a pretreatment liquid. The inkjet ink contains pigment particles, an anionic dispersant, and binder resin particles. The pigment particles have a major axis of at least 50 nm and no greater than 200 nm. The pigment particles have an aspect ratio of at least 2.0 and no greater than 3.0. The binder resin particles contain a specific binder resin. The specific binder resin has a glass transition point of at least 0° C. and no higher than 45° C. The pretreatment liquid contains water and a cationic material.

Abstract: A cleaning liquid contains water, a specific organic solvent, and an acetylene surfactant. The specific organic solvent is at least one selected from the group consisting of polyhydric alcohol and polyalkylene glycol. The specific organic solvent has a percentage content of at least 1% by mass and no greater than 18% by mas to the mass of the cleaning liquid. The acetylene surfactant has a percentage content of at least 0.3% by mass and no greater than 1.0% by mass to the mass of the cleaning liquid.

Abstract: An information processing apparatus includes a processor which executes an OS; a speaker which outputs a sound; a short-distance wireless communication unit which outputs first information indicating that a specific signal is received by short-distance wireless communication; an EC which outputs first sound data to output a sound in response to acquiring the first information output from the short-distance wireless communication unit; and an audio processing device which exclusively switches between the sound based on the first sound data output from the EC and a sound based on second sound data output from the processor by processing based on the OS in order to output either one of the sounds from the speaker. When acquiring the first information output from the short-distance wireless communication unit, the EC causes the audio processing device to output the sound based on the first sound data from the speaker.

Abstract: According to one embodiment, an image forming apparatus includes a conveyance system, a capacitance sensor, a processor, an image forming mechanism, and a tag writer. The conveyance system conveys paper. The capacitance sensor detects a value indicating the capacitance at a plurality of detection positions for the paper conveyed by the conveyance system. The processor detects that the paper conveyed by the conveyance system is provided with an RFID tag, and that the paper is being conveyed without overlapping with other paper based on the value indicating the capacitance detected at a plurality of detection positions by the capacitance sensor. If the processor detects that the paper is provided with an RFID tag and is conveyed without overlapping with other paper, the image forming mechanism forms an image on the paper. The tag writer writes data to the RFID tag provided on the paper on which the image forming mechanism forms the image.

Abstract: A heat-exchanger fixing plate is to fix a side portion of a heat exchanger to a housing panel of an air-conditioning apparatus, the heat exchanger including a heat radiation fin and a heat transfer tube. The heat-exchanger fixing plate includes a heat-exchanger support portion facing the side portion of the heat exchanger, and having an insertion hole through which a hairpin portion of the heat transfer tube of the heat exchanger is inserted; and a housing-panel fixing portion formed separately from the heat-exchanger support portion and fitted to the heat-exchanger support portion, the housing-panel fixing portion being fastened with a screw to the housing panel such that the heat exchanger is fixed to the housing panel.

Abstract: An information processing apparatus includes: a main control unit that executes processing based on an operating system (OS) and that changes to a low power consumption mode to stop some functions including a display unit while making a predetermined function work; a setting information storage unit that stores a usage status mode based on usage status and setting information in association with one another, where the setting information indicates whether to stop the predetermined function implemented by a device driver added to the OS in the low power consumption mode; a mode control unit that changes the main control unit to the low power consumption mode; and a change processing unit that changes a stopped state of the predetermined function.

Abstract: An ink set includes an inkjet ink and a pretreatment liquid. The inkjet ink contains pigment particles, an anionic dispersant, and binder resin particles. The pigment particles have a major axis of at least 50 nm and no greater than 200 nm. The pigment particles have an aspect ratio of at least 2.0 and no greater than 3.0. The binder resin particles contain a specific binder resin. The specific binder resin has a glass transition point of at least 0° C. and no higher than 45° C. The pretreatment liquid contains water and a cationic material.

Abstract: An information processing apparatus includes: a main control unit that executes processing based on an operating system (OS) and that changes to a low power consumption mode to stop some functions including a display unit while making a predetermined function work; a setting information storage unit that stores a usage status mode based on usage status and setting information in association with one another, where the setting information indicates whether to stop the predetermined function implemented by a device driver added to the OS in the low power consumption mode; a mode control unit that changes the main control unit to the low power consumption mode; and a change processing unit that changes a stopped state of the predetermined function.

Abstract: An information processing apparatus includes a BIOS storage unit that stores at least a Basic Input Output System (BIOS) program, a main controller that starts up an operating system by executing the BIOS program, and a sub-controller that manages peripheral apparatuses and accesses the BIOS storage unit, in which the sub-controller includes a digest computation unit that computes a digest value on the basis of BIOS program data stored in the BIOS storage unit in parallel to execution of a process in the main controller, and in which the main controller determines validity of the BIOS program on the basis of the digest value.

Abstract: An information processing apparatus includes a BIOS storage unit that stores at least a Basic Input Output System (BIOS) program, a main controller that starts up an operating system by executing the BIOS program, and a sub-controller that manages peripheral apparatuses and accesses the BIOS storage unit, in which the sub-controller includes a digest computation unit that computes a digest value on the basis of BIOS program data stored in the BIOS storage unit in parallel to execution of a process in the main controller, and in which the main controller determines validity of the BIOS program on the basis of the digest value.

Abstract: A post-processing apparatus comprises a first processing tray on which fed paper is placed; a paper binding section configured to bind a plurality of sheets of paper stacked on the first processing tray into one bundle; a second processing tray which a plurality of paper bundles bound on the first processing tray are sequentially conveyed to and placed on; a paper bundle gluing section configured to coat glue at a given position of the top surface of a first paper bundle placed on the second processing tray before a second paper bundle is placed on the first paper bundle; a pressing section configured to press and bind the first paper bundle with the second paper bundle between which glue is coated; and a control section configured to control the timing for conveying the second paper bundle onto the first paper bundle after the glue is coated.