Abstract: Printing methods and devices identify distortable ink colors in a print job. These distortable ink colors interact with one another when printed in the same printing pass on the same area of a sheet. These methods and devices control printheads and sheet feeders to separately print the distortable ink colors in different print passes.

Abstract: A printing apparatus includes a pattern correction unit configured to change a mutual positional relationship among a plurality of divided pieces of first image data obtained by dividing first image data representing a first pattern formed in a fabric to generate corrected first image data having a center made up of four corners of the first image data, a pattern extracting unit configured to compare the corrected first image data with second image data generated by imaging the fabric to extract a pattern region corresponding to a second pattern represented by the corrected first image data from the second image data, a printing image generation unit configured to arrange third image data representing an image to be printed overlaid on the first pattern so as to match a region having centers of the pattern regions as four corners to generate printing image data, and a printing control unit.

Abstract: An inkjet printer is described. The inkjet printer has a gas cushion substrate support having a metal support surface; a print assembly with a dispenser having ejection nozzles facing the support surface; a gas source fluidly coupled to the gas cushion substrate support by a gas conduit; and a thermal control system coupled to the gas conduit.

Abstract: A print job having a number of pages is printed in a continuous mode, on media advanced at a constant speed. The print job can thus be effectively treated as having a single page. The media that are advanced for printing the print job can similarly be effectively treated as being a single medium.

Abstract: A medium-discharging device includes: a medium-discharging section that discharges a medium; a medium-receiving tray that receives the medium discharged by the medium-discharging section; a light-emitting section that emits light to the medium-receiving tray; and a control section that controls the light-emitting section, in which the medium-receiving tray is configured to switch between a first state in which the medium-receiving tray is stored in an apparatus main body that includes the medium-discharging section and a second state in which the medium-receiving tray protrudes from the apparatus main body, and the control section controls the light-emitting section in accordance with a state or operation of the medium-receiving tray.

Abstract: In some examples, a sheet-fed printing press includes a dryer for drying sheets printed by a non-impact printing device. A cooling unit is directly downstream from the dryer in the transport direction, and includes a cooling module above a conveying plane. The cooling module uses air as a cooling medium, and may include a blower module with blower nozzles that blow the cooling medium onto the surface of the sheets being cooled. The blower module forms, with a guide surface, a gap with respect to the surface of the sheet being cooled. The guide surface of the blower module is arranged at a height above the surface of the sheet being cooled so that the cross-section of an outer annular gap, through the cooling medium exits, is smaller than or almost equal to a sum cross-section across all opening surfaces of the blower nozzles in the guide surface.

Abstract: An image forming apparatus includes an accommodating part configured to accommodate a sheet-like medium wound in a roll shape, an apparatus main body provided with a conveyer and an image forming engine, an electrically driven cutter, a cover configured to take a closed position for forming an exposable portion of a conveying path downstream in the conveying direction of the cutter and an open position to expose the exposable portion of the conveying path to the outside, a detector configured to detect a conveyance jam of the medium at a position downstream in the conveying direction of the exposable portion of the conveying path, a notifier configured to make notification to a user, and a controller configured to cause the notifier to prompt the user to cut off the medium at an arbitrary position in the exposable portion of the conveying path when the detector detects the conveyance jam.

Abstract: At step S115, a printer control unit refers to a table using an average print duty as an input, and determines a saturation temperature and a drum preliminary heating temperature. In this example, since the saturation temperature and the preliminary heating temperature with respect to the print duty are stored as a table, the printer control unit refers to the table using the average print duty as the input, and determines the saturation temperature and the drum preliminary heating temperature. At step S120, the printer control unit investigates a current drum temperature based on a measurement result of a temperature sensor. Subsequently, at step S125, the drum is heated or cooled until it reaches, of the saturation temperature and the drum preliminary heating temperature, the temperature for which the difference with the current drum temperature is smaller.

Abstract: A printing device may include two printers for printing to the front side and the back side of a recording medium. The physical page length of at least one print image applied onto the front side of the recording medium is determined. The required page length of at least one print image to be applied onto the back side of the recording medium is adapted to the determined page length. At least one print line of the print image for the back side is printed repeatedly if the required page length for application of the rear print page onto the back side of the recording medium is smaller than the determined page length.

Abstract: There is provided a liquid discharge apparatus including: a head, a conveyer having a roller arranged at the downstream of the head according to a conveyance direction, and a controller. The controller is configured to carry out: a recording process, a first determining process to determine whether or not a predetermined time has elapsed since the recording process, a conveying process to convey a medium in if the first determining process determines that the predetermined time has elapsed, and a setting process to set a predetermined time based on a discharge amount of a liquid from a plurality of nozzles onto a recording area and a conveyance time for the conveyer to convey the medium from the recording area to the roller, before the first determining process.

Abstract: An image forming system includes: an image former that forms a label image on a long sheet conveyed in a sheet conveyance direction on a basis of a print job; an image defect detector that detects an image defect of the label image that is formed; and a sheet conveyer that conveys the long sheet in accordance with the label image where the image defect is detected after execution of the print job has been completed.

Abstract: A printing apparatus includes a printing part configured to perform printing on a recording medium in which a label is attached to a backing sheet, transport rollers configured to sandwich and transport the recording medium, a peeling member configured to peel off the label from the backing sheet by bending the recording medium, and a tensioner configured to apply a tension in a direction opposite to a transport direction of the recording medium transported by the transport rollers to the recording medium, wherein, in the transport direction, the transport rollers are positioned downstream of the peeling member, and the tensioner is positioned upstream of the peeling member.

Abstract: A control device includes a processor configured to: acquire information on a direction in which continuous paper is wound up, specify a viewable surface, which is a surface of the continuous paper viewable from a user in a state where the continuous paper has been wound up, on a basis of the direction in which the continuous paper is wound up, and control a printer to print print information, which is information on a job printed on the continuous paper, on the viewable surface.

Abstract: A printer includes a recording unit, a support portion, a negative pressure chamber, a first sectioned chamber, a second sectioned chamber, a first suction port, and a second suction port. The support portion includes a support face configured to support roller paper. The negative pressure chamber is disposed at an opposite side of the support portion from the recording unit side. The first and the second sectioned chamber include a first and a second bottom surface. The first and the second suction port cause an outside space and the negative pressure chamber to communicate with each other. An opening area of the second suction port is smaller than an opening area of a first suction portion. The second suction port disposed most upstream in the first sectioned chamber is disposed upstream, in the transport direction, of the first suction port disposed most upstream in the second sectioned chamber.

Abstract: Printing apparatus (20) includes a continuous blanket (24) and a set of motorized rollers (31), which advance the blanket at constant speed through an image area. Print bars (38) eject droplets of ink at respective locations onto the blanket in the image area. Monitoring rollers (42), in proximity to the locations of the print bars, contact the blanket to be rotated by blanket advancement. Each monitoring roller includes an encoder (44), which outputs a signal indicative of a rotation angle of the monitoring roller. A control unit (40) collects, during a calibration phase, the signal from the encoders over multiple rotations of the monitoring rollers, detects a deviation of the signal from the encoder relative to a clock signal having a predefined frequency, and computes runout correction factors. During an operational phase, the control unit applies the runout correction factors to synchronize the droplets ejection from the print bars.

Abstract: A printing apparatus includes a head which discharges liquid onto a printing medium; and a light irradiation unit which is aligned with the head in a first direction and which irradiates the liquid on the printing medium with light. The light irradiation unit has light source arrays arranged in the first direction, each of the light source arrays includes light sources aligned in a second direction, and the light source arrays include a first light source array which is disposed most closely to the head in the first direction. The light, which is radiated by each of the light sources included in the first light source array, has an intensity that is smaller than an intensity of the light which is radiated by each of the light sources included in the light source arrays different from the first light source array.

Abstract: An image forming apparatus includes a stacking unit, a feeding unit, an image forming unit, a discharge stacking unit, a detecting unit, a double-side feeding passage, and a controller. In a case that subsequent to a current recording material, a subsequent recording material is discharged, the controller determines a feeding timing of the subsequent recording material depending on a discharge interval time from discharge of the current recording material on the discharge stacking unit to discharge of the subsequent recording material on the discharge stacking unit, and determines the discharge interval time on the basis of print information of at least the subsequent recording material.

Abstract: A printer is provided with a platen support member, a platen, and a positioning portion. The platen support member supports the platen. The platen includes a rear engaging portion. The positioning portion includes a rear roller. The rear roller is provided at the platen support member, and can move in the front-rear direction with respect to the platen support member. The rear roller engages with the rear engaging portion in a state in which the platen is supported by the platen support member. The positioning portion positions the platen at a prescribed printing position in the front-rear direction, by the rear roller moving forward in a state in which the rear engaging portion is engaged with the rear roller.

Abstract: Systems and methods for printing a plurality of images on a substrate include, for each of the plurality of images: determining whether that image is a removable image or a permanent image, identifying, based on the determination, at least one layer to be used for printing that image in addition to a marking material layer that forms the image. The at least one layer may be a pre-coat layer applied under the marking material layer and/or a post-coat layer applied over the marking material layer. The marking material layer and the at least one layer are then printed on the object.

Abstract: A base material processing apparatus includes a first detector, a second detector, and an arithmetic unit. The first detector intermittently detects the position of the edge of the base material in the width direction at a first detection position to acquire a first detection result (Ra). The second detector intermittently detects the position of the edge of the base material in the width direction at a second detection position located downstream of the first detection position to acquire a second detection result (Rb). The arithmetic unit calculates a transport error of the base material by comparison between the first detection result (Ra) and the second detection result (Rb). The controller changes detection timing of at least one of the first detector and the second detector.

Abstract: A printing apparatus, comprises a first circuit board configured to control a first motor and a printing unit that performs printing to a print medium, a second circuit board configured to control a second motor, a sensor configured to output a sensor signal used to control the first motor and the second motor, and a signal line configured to input the sensor signal from the sensor to the first circuit board and the second circuit board.

Abstract: A switch status detection device includes a power source, a first resistor, a first switch, a control device, and a first capacitor. The first resistor has one end connected to the power source. The first switch is configured to switch between a connected state and a disconnected state of a first contact point, provided on a first current path between the other end of the first resistor and ground. The control device detects an on/off status of the first switch, on a basis of a voltage at the other end of the first resistor. The first capacitor has one end connected to the first contact point at a position on the first current path on a side of the first resistor with respect to the first contact point, and the other end connected to the power source or the ground.

Abstract: A method and system for detecting one or more failing nozzles in an inkjet printhead of an inkjet printer for printing an image on a substrate and compensating failing nozzles, as well as for correcting colour uniformity of a printed image in inkjet printing an image on a substrate includes printing a first test pattern on a dedicated substrate, which is optically scanned and includes a system for the same. From the scan failing nozzles are identified, which are to be compensated by other nozzles. To these compensating nozzles compensated nozzle control data are allocated, which are used in printing a second test pattern that is also scanned and analysed for local deviations of colorimetric greyscale value. Corrected nozzle control data are allocated to the nozzles associated with the local deviation.

Abstract: A printing apparatus includes a pattern extracting unit for, based on a comparison between first image data representing a pattern and second image data generated by imaging a fabric transported, extracting a pattern region from the second image data, a printing image generation unit for arranging third image data representing an image to be printed overlaid on the pattern so that the third image data matches the pattern region to generate printing image data, and a printing control unit for causing a printing unit to print the printing image data on the fabric transported.

Abstract: An image forming system includes processing circuitry. The processing circuitry generates print image data to for printing a first image included in print job data, on a conveyance medium. The processing circuitry controls printing on the conveyance medium based on the print image data. The processing circuitry sets an area for printing a second image including identification information to identify each page of the conveyance medium, in a first area where the first image is not printed, to generate the print image data.

Abstract: A cutting device includes: a movable blade; a moving mechanism moving the movable blade and having a first mechanism portion movable between a first operating position and a first non-operating position and a second mechanism portion movable between a second operating position and a second non-operating position; a first detecting portion and a second detecting portion detecting positions of the first mechanism portion and the second mechanism portion; and a controller configured to perform: setting, when one of the first detecting portion and the second detecting portion detects abnormally, updated positions of the first operating position and the second operating position or the first non-operating position and the second non-operating position. The updated positions are set based on detection result of another of the first detecting portion and the second detecting portion and are new start points of movement of the first mechanism portion and the second mechanism portion.

Abstract: A liquid discharge device determines, in a state of a liquid discharger discharging liquid onto a continuous form sheet conveyed by a conveyor at a first conveying speed, in response to a seam of the continuous form sheet detected by a seam detection sensor, whether a heater temperature detected by a temperature detection sensor is a threshold or higher; causes, in response to the heater temperature being determined to be the threshold or higher, the conveyor to stop conveying the continuous form sheet, until the heater temperature decreases to be less than the threshold; and causes, in response to the heater temperature having decreased to be less than the threshold, the conveyor to convey the continuous form sheet at a second conveying speed slower than the first conveying speed until the seam of the continuous form sheet is wound up around a winding roller.

Abstract: An image forming apparatus includes a transportation belt, a print engine, and an ejection timing control unit. The transportation belt transports a print sheet. The print engine ejects ink onto the print sheet. The ejection timing control unit adjusts an ink ejection timing of the print engine. The transportation belt includes a flushing opening part. The print engine repeatedly performs ink flushing to the flushing opening part at predetermined timings. Further the ejection timing control unit derives an adjustment amount for the ink ejection timing of the print engine on the basis of: a number of the ink ejection timings in a period from a previous flushing time to a current flushing time, a distance from the flushing opening part for the flushing at the previous flushing time to the flushing opening part for the flushing at the current flushing time, and a print resolution.

Abstract: In some examples, a printing press includes a support element with a circulatingly movable contact surface for contacting a printing substrate. An ink jet print head includes an ejection opening arranged to be directed at the support element. Additionally, the printing press includes a charging device that includes a charging electrode, which is arranged to be directed at the contact surface. The charging device further includes a counter-electrode, and the movable contact surface is at least partially arranged between the charging electrode and the counter-electrode of the charging device. A smallest distance between the charging electrode and the movable contact surface is greater than a smallest distance between the ejection opening of the ink jet print head and the contact surface. For example, the smallest distance between the charging electrode and the contact surface may be at least 50 mm.

Abstract: A liquid ejection apparatus includes a plurality of liquid ejection head units that eject liquid onto a conveyed object at different positions along a conveying path; a first support member and a second support member that are respectively provided at an upstream side and a downstream side of a landing position of liquid ejected by a corresponding liquid ejection head unit; a first detection unit that is installed between the first support member and the second support member and is configured to detect a position of the conveyed object in a direction orthogonal to a conveying direction of the conveyed object; a second detection unit that is installed upstream of the first detection unit; and a movement control unit that moves each liquid ejection head unit based on a plurality of detection results output by the first detection unit and/or the second detection unit.

Abstract: A method, apparatus, and non-transitory computer-readable storage medium for altering a digital image for a printing job, the method comprising receiving a requested printing job including the digital image, performing a segmentation on the digital image, extracting values of properties for a segment of the segmented digital image, determining, based on the extracted values of the properties for the segment, whether the segment of the digital image should be altered, and altering the segment of the digital image when it is determined the segment of the digital image should be altered, a resulting altered digital image being transmitted to a printer for printing.

Abstract: A liquid ejection device includes: a casing; a holder for rotatably supporting a sheet roll including a continuous sheet; a power transmission mechanism positioned beside the holder for transmitting a rotational driving force thereto; a cartridge attachment portion for receiving a cartridge; a conveying mechanism for conveying the continuous sheet to a discharge opening on a front surface of the casing; a head; and a maintenance unit. The holder supporting the sheet roll is rotatable about a rotation axis extending in a leftward/rightward direction. The cartridge and the holder are detachably attachable to the casing through an opening thereof. The cartridge attachment portion and the power transmission mechanism are positioned at the same side of the holder in the leftward/rightward direction. An occupying range of the maintenance unit is across respective occupying ranges of the cartridge attachment portion and the power transmission mechanism in the leftward/rightward direction.

Abstract: Techniques for operating a printer are provided. In an example, the printer can include a print head a cure light and a controller. The controller can be configured to move the print head relative to a print media to print a given image, to move the cure light relative to the print media at a cure speed in response to the cure light passing over a printed portion of the given image to cure the ink of the given image, and to move the cure light at an index speed in response to the cure light passing over a non-printed portion of the given image, wherein the index speed is greater than the cure speed.

Abstract: An untaken sheet notification device to notify that the sheet is untaken from an ejection tray if an ejection tray sensor that detects presence or absence of the sheet on the ejection tray detects presence of the sheet, after a sheet is ejected, a document feeder, and an image forming apparatus include a counter that counts the number of the ejected sheets and a notification controller that performs a specific notification control to notify that the sheet is untaken if the number of the sheets counted by the counter is equal to or less than a predetermined reference number.

Abstract: A recording device includes a transport unit configured to alternately repeat transport and stop of a recording medium, a recording head configured to discharge ink onto the recording medium to form an image while the recording medium is stopped in an image forming region, a drying unit including a plate in which a plurality of openings for blowing an air flow are formed in a position facing the recording medium transported by the transport unit, and being configured to dry the recording medium on which an image is formed by the recording head, and a relative movement unit configured to move the recording medium and the plate relatively in an intersecting direction that intersects a facing direction in which the recording medium and the plate face each other, while the recording medium is stopped in the image forming region.

Abstract: A conveyance apparatus includes a liquid discharge head unit, a conveyance rotator, and a plurality of detection devices. The liquid discharge head unit discharge liquid to an object conveyed in a conveyance direction. The conveyance rotator conveys the object. The plurality of detection devices output a detection result indicating a position of the object. The adjacent two of the plurality of detection devices are spaced at a prescribed distance. The prescribed distance is an integral multiple of a circumference of the conveyance rotator.

Abstract: Techniques for operating a printer are provided. In an example, the printer can include a print head a cure light and a controller. The controller can be configured to move the print head relative to a print media to print a given image, to move the cure light relative to the print media at a cure speed in response to the cure light passing over a printed portion of the given image to cure the ink of the given image, and to move the cure light at an index speed in response to the cure light passing over a non-printed portion of the given image, wherein the index speed is greater than the cure speed.

Abstract: A medium transport device includes a feeding roller that feeds a recording medium, a transport roller that transports the recording medium toward a recording head, and a transport motor which is a common driving source for the feeding roller and the transport roller. The medium transport device includes a power transmission mechanism that transmits power of the transport motor to the feeding roller, and a control section that controls a current of the transport motor. The control section measures a current value flowing through the transport motor during driving as a measured current value, and adds a predetermined offset value to the measured current value to set a second limit value as a limit value of the current supplied to the transport motor.

Abstract: A main TP is formed by N pattern element groups formed of a plurality of pattern elements disposed in cycles of N in a first direction, and disposed in positions shifted with respect to each other in a second direction intersecting the first direction. A first sub TP is configured by pattern elements printed by the nozzles used to print the pattern elements of the pattern element group positioned furthest away from the one region, in the second direction, among the N pattern element groups, and a second sub TP is configured by pattern elements printed by the nozzles used to print the pattern elements of the pattern element group positioned furthest away from the other region, in the second direction, among the N pattern element groups.

Abstract: An image print apparatus capable of printing multiple pages on a rolled printing medium includes a conveyance unit that conveys the printing medium, a printing unit that prints on the printing medium, and a cutting unit that cuts out the printing medium. The conveyance unit performs a first conveyance operation to convey the printing medium by a predetermined length in a direction to discharge the printing medium and to stop the conveyance, which is carried out after completion of printing of one page by the printing unit and before settlement of a print start position of a next page, and a second conveyance operation including an operation to convey the printing medium in the direction to discharge until the print start position reaches a position of the printing unit, which is carried out after settlement of the print start position of the next page.

Abstract: A printing apparatus includes a conveyance unit configured to convey a medium, a suction unit configured to suction the medium, a control unit configured to control the conveyance unit and the suction unit, and a communication interface configured to communicate with a server apparatus. The control unit performs preliminary conveyance in which the conveyance unit conveys the medium in a state where the suction unit performs suction, measures a load determination value that changes in accordance with a conveyance load of the medium in the preliminary conveyance, acquires a conveyance load coefficient on a basis of the load determination value and a suction force of the suction unit, and transmits, to the server apparatus through the communication interface, the conveyance load coefficient or parameter determination information, together with medium type information about a type of the medium. the parameter determination information includes the load determination value and the suction force.

Abstract: Printing apparatus (20) includes a continuous blanket (24) and a set of motorized rollers (31), which advance the blanket at a constant speed through an image area. One or more print bars (38) eject droplets of ink at respective locations onto the blanket in the image area. One or more monitoring rollers (42), in proximity to the locations of the print bars, contact the blanket so as to be rotated by advancement of the blanket. Each monitoring roller includes an encoder (44), which outputs a signal indicative of a rotation angle of the monitoring roller. A control unit (40) collects, during a calibration phase, the signal from the encoders over multiple rotations of the monitoring rollers and computes runout correction factors. During an operational phase, the control unit synchronizes ejection of the droplets from the print bars using the computed runout correction factors.

Abstract: The inventions relates to a method for producing a decorative workpiece with a structured surface comprising the following steps: (B) applying a first liquid lacquer having a coarse structuring over the entire surface, wherein a difference in thickness between thicker regions and thinner regions is at least 50 ?m, in particular at least 100 ?m; (E) applying a second liquid, at least partially transparent lacquer for producing a fine structuring in some regions. Furthermore, an apparatus for performing the method and a workpiece produced by the method are claimed.

Abstract: An inkjet recording apparatus includes memory, a processor, an image forming section, and a bending mechanism. The memory stores therein bending information in which a plurality of bending amounts corresponding to respective ejection amounts of an ink ejected from the image forming section are defined. The processor sets a bending amount of a sheet to be conveyed. The bending mechanism includes a roller and a belt that hold the sheet therebetween, and bends the sheet by moving a position of a center of the roller toward the belt based on the set bending amount. The processor calculates for each of areas of the sheet an amount of the ink ejected to the area, and sets the bending amount of the sheet based on the bending amounts corresponding to the calculated amounts of the ink ejected to the respective areas in the bending information.

Abstract: Inkjet printing apparatus including: ink accommodating unit storing ink; ejection head configured to eject the ink to form print layer; and heating unit configured to heat print target, wherein the ink is clear ink including resin and water, dry film of the clear ink has glass transition temperature of 50° C. or more, the inkjet printing apparatus has first printing mode and second printing mode, and the heating unit is configured to heat the print target so that expression: Tmatte>Tgloss is satisfied, where the Tmatte is temperature (° C.) of the print target in printing region printed in the first printing mode obtained when the clear ink is deposited on the print target, and the Tgloss is temperature (° C.) of the print target in printing region printed in the second printing mode obtained when the clear ink is deposited on the print target.

Abstract: An information processing device includes an acquisition unit acquiring image data and ink data, the image data being obtained by digitizing, as an image, the fabric before the printing process is performed, the ink data indicating a type of the ink, a storage unit storing derivation data for deriving a recommended parameter for at least one of the pre-processing device and the post-processing device, and a control unit deriving, based on the derivation data, the recommended parameter from the image data and the ink data, wherein the derivation data includes first data and second data, the first data being configured to define a learned model learned by machine learning, the learned model being configured to, when the image data is input, output fabric data indicating a feature value of the fabric, the second data indicating a correspondence relationship between the fabric data and the ink data, and the recommended parameter.

Abstract: Embodiments of an apparatus, system and method for facilitating the tracking of consumable pharmaceutical articles are disclosed. A marking apparatus is configured to apply unique indelible identifiers to pharmaceutical articles at the point-of-sale. The indelible identifiers on the articles are visually or electronically readable to allow each respective article to be traced with respect to its manufacturer, prescribing physician, patient to whom it was prescribed, dispensing location, expiration date, dosage, or some combination thereof. An associated system and method may involve the provision of a remote database element configured to be in network communication between the marking apparatus, manufacturer, distributor, prescriber, dispensing location, scanning tool, or some combination thereof. The indelible identifier may initially be generated by the apparatus and then obtained and recorded by the remote database element.

Abstract: There is provided image recording apparatus including: memory and controller. The controller is configured to store, in the memory, first identification information for identifying recorded image and minimum margin value being a minimum value of partial image margins of recorded partial images. The controller is configured to obtain second identification information for identifying image-to-be-recorded. In a case that second identification information is same as first identification information stored, the controller is configured to determine whether the minimum margin value is smaller than threshold or not, and then: in a case that the minimum margin value is smaller than threshold, the controller is configured to derive an edge position of the sheet, and then execute ejection based on the derived edge position; and in a case that the minimum margin value in not smaller than threshold, the controller is configured to execute the ejection without deriving the edge position.

Abstract: Object: A liquid material application apparatus and a liquid material application method are provided with which a liquid material can be discharged in a predetermined discharge amount per unit time regardless of a relative moving speed in a series of application works.

Abstract: Provided is an inkjet printing apparatus capable of wiping off contamination on a platen efficiently. To that end, a cleaning sheet in which a first crease and a second crease are formed is conveyed to clean the platen in the printing apparatus. In this operation, the conveyance of the cleaning sheet is controlled so that the cleaning sheet moves back and forth with the first crease of the cleaning sheet being in contact with a first region of the platen. Further, the conveyance of the cleaning sheet is controlled so that the cleaning sheet moves back and forth with the second crease of the cleaning sheet being in contact with a second region of the platen, the second region being at a position different from the first region in the conveyance direction.