Canon Patente

The optical system according to the present invention consists of a first lens unit with positive refractive power disposed closest to an object side, a middle group including at least two lens units, and a final lens unit with negative refractive power disposed closest to an image side. The middle group includes a first focus lens unit configured to move during focusing, and a second focus lens unit disposed on the image side of the first focus lens unit and configured to move during focusing. An aperture stop is disposed between two lenses included in the middle group. A lens surface at the object side in a lens disposed closest to the object side in the first lens unit is convex toward the object side Here, a focal length of the optical system, a focal length of the final lens unit, and a focal length of the second focus lens unit are appropriately determined.

A biological processing apparatus (100) includes a biological information acquisition unit (31) that acquires biological information; a biological information use unit (36) that uses the biological information and feature extracted from the biological information; an explicit consent acquisition unit (34) that acquires consent for use of biological information for a person; a biological information use limiting unit (37) that limits the use of the biological information based on a value for the consent; and a consent state presuming unit (32) that presumes a consent state representing consent for use of the biological information for the person based on an acquisition state at the time of acquisition of the biological information. In addition, the biological information limiting unit (37) relaxes the limits on the use of the biological information for the person and the feature that have been extracted from the biological information based on the consent state presumed by the consent state presuming unit (32).

A printing apparatus operable by receiving power supply from a device connected via a wired connection, the printing apparatus determines a power supply level of the power supply, sets a printing mode based on the determined power supply level, and controls printing based on the set printing mode.

Provided is an ink-repellent member including an underlying portion that contains a tantalum oxide, and has a hydrocarbon compound represented by the following formula (1) bonded to a surface thereof via a Ta-O-Si bond:in the formula (1), R¹ to R⁶ are each independently selected from a methyl group and an ethyl group, "I" represents an integer of 0 or more, "m", "n", and "o" each represent an integer of from 0 to 2, p1, q1, and r1 each represent an integer of from 0 to 2, and p1+q1+r1=2 is satisfied, and p2 and p3 each represent an integer of from 0 to 2, and q2, r2, q3, and r3 each represent an integer of from 0 to 3, and p2+q2+r2=3 and p3+q3+r3=3 are satisfied.

A polymer including a polyethylene terephthalate linked by a polycarbodiimide represented by formula (1), wherein the polymer has a melt flow rate (MFR) of 41 g/10 min or more: <img class="EMIRef" id="6afdbd79-1e24-4354-bea2-14fcdac6cab1-ia01" /> in formula (1), R represents an alkylene group having 1 to 12 carbon atoms, and n represents an integer of 2 or more and 10 or less.

An image forming apparatus includes a printing unit, a plurality of discharge trays including a first discharge tray, a second discharge tray, and a third discharge tray, the plurality of discharge trays being subjected to discharge of a sheet with an image printed thereon by the printing unit, an accepting unit configured to accept a specified number of sheets by a user. A switching unit does not switch a discharge destination tray to the first discharge tray having a number of dischargeable sheets that is less than the specified number of sheets among the plurality of discharge trays, and switches the discharge destination tray to which the sheet is discharged for each specified number of sheets among the second discharge tray and the third discharge tray having a dischargeable number of sheets that is larger than or equal to the specified number of sheets among the plurality of discharge trays.

There is included a spacer portion (14) including a saturable absorption layer (16) provided between a first electrode (140), which is a back electrode, and a resonator portion (18, 29). The spacer portion (14) has a first spacer layer (134) provided on the first side with respect to the saturable absorption layer (16) and a second spacer layer (144) provided on the second side with respect to the saturable absorption layer (16). Each of the first spacer layer (134) and the second spacer layer (144) is of a first conductivity type.

A communication apparatus (100) includes a time control unit (107) configured to manage date and time information, a file acquisition unit (100) configured to acquire a file, a recording unit (110) configured to record an acquisition date and time at which the file has been acquired, based on the date and time information managed by the time control unit, and a transmission control unit (101) configured to compare an acquisition date and time of a file to be transmitted to an external device with a current date and time managed by the time control unit, and, when a comparison result does not satisfy a predetermined condition, to prevent transmission of the file to the external device.

An imaging assistance device detects a plurality of subjects from a captured image obtained by image capturing in accordance with an input of an imaging setting related at least to focusing, and estimates a defocus range indicating a region of a defocus amount of each subject. The imaging assistance device selects at least one subject from among the plurality of detected subjects based on a detection result of each subject and an estimation result of the defocus range of each subject, and outputs information regarding the focusing on the selected subject or subjects.

In color verification based on a user-specific standard, there is an issue that it is difficult to create a user-specific color verification specification. A method for controlling an information processing apparatus configured to perform color measurement on a color patch arranged on a chart output by an image forming apparatus and verify color accuracy of the image forming apparatus includes acquiring a color verification specification, acquiring image data, determining, in the acquired image data, a color corresponding to a color that does not exist in the acquired color verification specification, and adding the color corresponding to the color that does not exist in the color verification specification to a color verification chart and the color verification specification.

A communication apparatus for communicating with an external apparatus having a plurality of connection destinations includes an acquisition unit configured to acquire, from the external apparatus, a transmission destination address of a file, a management unit configured to manage the transmission destination address for each connection destination of the plurality of connection destinations, and a transmission unit configured to transmit the file to the external apparatus by using the transmission destination address.

A device receives designation of a size of an image to be output; in a case where the designated size is a predetermined size and the image is a target of margin removal processing, arranges a drawing region obtained by excluding a margin from the image using a first position as a reference point, the first position being located inward from an end of an output sheet by an amount corresponding to a predetermined print margin; and in a case where the designated size is the predetermined size and the image is not a target of the margin removal processing, arranges the image using a second position as a reference point, the second position being an intersection between a first side of the output sheet in a conveyance direction and a second side of the output sheet orthogonal to the first side.

A technique for detecting a medium's edge portion with high accuracy is provided. To this end, a liquid ejection apparatus adjusts a differential output by having a plurality of light reception units (212), obtaining a differential output based on outputs from the plurality of light reception units (212), and adjusting the light reception sensitivity of the light reception units (212) using an adjustment unit.

A printing apparatus (10) includes: a first detection unit (36) provided on one side of a carriage (32) in a width direction (X); and a second detection unit (38) provided on the other side of the carriage (32) in the width direction (X), at least one of the first and second detection units includes: a light emitting unit (312) configured to emit light to a platen (34) and the print medium (M); a first light receiving unit (322) capable of receiving reflected light from the platen (34) and the print medium (M); and a second light receiving unit (324) capable of receiving the reflected light from the platen (34) and the print medium (M), overlapping the first light receiving unit (322) in the conveyance direction (Y), and spaced apart from the first light receiving unit (322) in the width direction (X).

According to the present disclosure, an information processing apparatus (100) includes a drive unit (101) and a display unit (211). In the information processing apparatus, based on an instruction to retry a job that is being executed by the drive unit, processing of the drive unit in accordance with the job is cancelled, and information about the retrying of the job is displayed by the display unit. Based on an instruction to start the retrying of the job, the job is retried.

A developing device includes a first rotatable member, a second rotatable member, a first feeding screw, a second feeding screw, and a guiding portion. In a case where a normal component of magnetic flux density of the second rotatable member is Br, a tangential component of the magnetic flux density is Bθ, and an angle Θ of a magnetic brush is arctan (Br/Bθ), there is a portion where the angle Θ of the magnetic brush is 45° or more in a range from an intersection point where a rectilinear line passing through an end portion of the guiding portion and a rotation center of the second rotatable member crosses an outer peripheral surface of the second rotatable member, to a closest point where the outer peripheral surface of the second rotatable member is closest to the guiding portion.

A heating device includes a heater, a switching element connected between the heater and an AC power, and a controller performing a wave number control. A power control pattern includes a first pattern of which a control period is a first number, equal to or more than 2, of half waves and which satisfies a positive/negative symmetry, and a second pattern of which the control period is a second number, equal to or more than 2 and divisible by 4, of half waves and which satisfies the positive/negative symmetry. The controller sets the second pattern in a case where a supplying power duty is a first duty and sets the first pattern in a case where the supplying power duty is a second duty which is the supplying power duty larger or smaller by one step than the first duty, and performs wave number control.

An image forming apparatus (IF) includes a first cartridge (CK), a second cartridge (CY), and an apparatus body (100) including a pump portion (135), a first developer container (12K), a second developer container (12Y), a first tube (QK), and a second tube (QY). A portion, of the first tube (QK) is configured to extend in a horizontal direction, a downwardly inclined direction, or an upwardly inclined direction at an angle of 45 degrees or less with respect to the horizontal direction. The length from the first end (EK1) to the second end (EK2) of the first tube (QK) is longer than the length from the third end (EY1) to the fourth end (EY2) of the second tube (QY). A cross-sectional area of an interior space of the first tube (QK) is larger than a cross-sectional area of an interior space of the second tube (QY).

An image forming system (400) includes an image forming apparatus (100) configured to form an image on a sheet (S), and a static eliminator (300) having a charge eliminating component (51b) configured to neutralize a sheet (S) having an image formed by the image forming apparatus. The static eliminator includes a first setting unit (54a) configured to set a voltage to be applied to the charge eliminating component. The image forming apparatus includes a second setting unit (157) configured to set a voltage to be applied to the charge eliminating component. The image forming system includes a third setting unit (153; 54c) configured to set which voltage is applied as a voltage to be applied to the charge eliminating component, the voltage set by the first setting unit or the voltage set by the second setting unit.

There is provided a recording apparatus that records data to a memory card, characterized by comprising: control means for repeatedly transmitting a data recording instruction that includes information designating recording target data and a recording destination to the memory card which manages a memory for data recording in the memory card as a plurality of recording areas and which can execute data recording with a guaranteed minimum recording speed in units of recording areas, wherein when transmitting a first data recording instruction that designates a start portion of a first recording area as a recording destination, the control means requests the memory card to execute data recording with the guaranteed minimum recording speed with respect to the first recording area by including a speed guarantee request in the first data recording instruction.

An image forming apparatus includes a first developing unit that is disposed above a first toner container and a second toner container, a second developing unit that is aligned with the first developing unit in a second direction intersecting a first direction and the direction of gravity and is disposed above the first toner container and the second toner container, a first path through which first toner passes, and a second path through which second toner passes, and is characterized in that the first developer container is replenished with the first toner from the first toner container through the first path, and the second developer container is replenished with the second toner from the second toner container through the second path.

An image forming apparatus configured to form an image on a recording material includes a first casing, a second casing connected to the first casing in a vertical direction, a positioning projection (50a, 50b) provided to the first casing, and a fitted portion (170a, 170b) provided to the second casing, the positioning projection (50a, 50b) fitting to the fitted portion (170a, 170b). The fitted portion (170a, 170b) is formed to allow relative sliding movement between the positioning projection (50a, 50b) and the second casing in a first direction intersecting the vertical direction and to limit a range of relative movement between the positioning projection (50a, 50b) and the second casing in a second direction intersecting the vertical direction and the first direction when the first casing and the second casing being connected to each other.

A liquid ejection head (1) includes: an ejection module (11) which includes an ejection driver element (MD1) and an ejection heater (RhA) capable of being electrically connected to the ejection driver element (MD1); a circulation module (12) which includes a circulation driver element (MD2) and a circulation heater (RhB) capable of being electrically connected to the circulation driver element (MD2); and a controller (202) which controls each of the ejection driver element (MD1) and the circulation driver element (MD2) into any one of a conduction state and a non-conduction state. The controller (202) makes an ejection drive frequency utilized to drive the ejection driver element (MD1) and a circulation drive frequency utilized to drive the circulation driver element (MD2) different from each other.

A booklet making apparatus comprises a heating and pressing unit that heats and presses an adhesive layer in a state where a plurality of sheets on which the adhesive layer has been formed are layered. The heating and pressing unit includes a pressing plate, a heating body that heats the pressing plate, a reception member, and a pressing mechanism. A booklet is made by heating and pressing the adhesive layer while holding the plurality of sheets on which the adhesive layer has been formed between the pressing plate and the reception member. The pressing mechanism applies pressure to the plurality of sheets held between the pressing plate and the reception member by pressing the pressing plate without applying a force to the heating body.

A liquid ejection head in which a plurality of ejection nozzles is arranged in a first direction includes: a first flow passage communicating with one end of each of a plurality of individual flow passages; a second flow passage communicating with the other end of each of the plurality of individual flow passages; a plurality of first openings provided in the first flow passage; and a plurality of second openings provided in the second flow passage, in which D2 > D1, in which D1 represents a size of a non-open part in a first direction between the two adjacent first openings, and D2 represents a size of a non-open part in the first direction between the two adjacent second openings.

A communication apparatus (102) that concurrently performs communication with an access point using a first communication interface as a station and communication with another apparatus functioning as a Client using a second communication interface as a Group Owner of a Wi-Fi Direct standard changes (S606, S607), in a case where a first wireless frame indicating a change of a frequency channel in use is received from the access point during a time when the first communication interface uses a frequency channel in a predetermined frequency band that needs support of a Dynamic Frequency Selection function and where the second communication interface uses a same frequency channel in the predetermined frequency band as that of the first communication interface, the frequency channel of the first communication interface and the second communication interface based on the first wireless frame.

An ejection head includes multiple ejector modules (101) each including an ejector driver element (MD1) and an ejector heater (RhA) capable of connecting with the ejector driver element (MD1); multiple circulator modules (102) each arranged in a pair with the ejector module (101), and including a circulator driver element (MD2) and a circulator heater (RhB) capable of connecting with the circulator driver element (MD2); a group selection circuit (112, 113) configured to select at least one ejector group from among ejector groups into which the multiple ejector modules (101) are divided by a predetermined number, and select at least one circulator group from among circulator groups into which the multiple circulator modules (102) are divided by the predetermined number; and a control unit configured to determine whether or not to enable each of the selections by the group selection circuit (112, 113) based on an operation mode.

A liquid ejection head is provided, in which first flow passage with which a one end of a first individual flow passage communicates, a second flow passage with which a the other end of the first individual flow passage and a one end of a second individual flow passage communicate, a third flow passage with which a the other end of the second individual flow passage communicates, and a plurality of first, second, and third openings that are disposed respectively in the first flow passage, the second flow passage, and the third flow passage and cause liquid to flow in or flow out are included, and, when sizes of non-open parts between two first openings, two second openings, and two third openings that are adjacent to each other in a first direction are respectively denoted by D1, D2, and D3, D1 > D2 and D3 > D2 are satisfied.

A printing apparatus, comprises a housing including an opening at an upper portion, a printing unit arranged in the housing, a guide mechanism arranged in the housing and configured to guide a sheet from the printing unit, and a cover portion configured to move between a first position at which the opening is opened and a second position at which the opening is closed, wherein the guide mechanism includes a first guide portion for guiding a first surface of the sheet, and a second guide portion for guiding a second surface of the sheet, arranged to face the first guide portion, and the first guide portion is movable to open a conveyance path of the sheet formed between the first guide portion and the second guide portion in a case where the cover portion is at the first position.

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A liquid ejection apparatus (1) includes an ejection head (22) configured to include an ejection port surface in which ejection ports for ejecting liquid are arranged, a cap (181) configured to be movable to a capping position where the ejection port surface is capped, and to an uncapped position where the ejection port surface is not capped, and a cleaning mechanism (191) configured to be movable, independently of the cap, to a cleaning position where the ejection head is cleaned, and to a standby position where the ejection head is not cleaned. The cap at the uncapped position is positioned above the cleaning mechanism at the standby position.

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