Abstract: A letter number specifying unit specifies a letter number of a sealed letter to be informed to a user, based on a content of a transfer error detected by an error detector. A searching unit searches a letter-number-specific print content table, in which letter number identification information for identifying each letter number, and print content information indicating a content of an image to be printed on a sheet which forms the sealed letter of each letter number are associated with each other, and finds the print content information associated with the letter number identification information of a letter number identification code read by a code reader from the sheet which forms the sealed letter of the letter number specified by the letter number specifying unit. An information displaying unit displays the print content information found by the searching unit on a display.
Abstract: The ink jet printing apparatus includes: an ink jet head having a nozzle row in which a plurality of nozzles for ejecting ink are arranged and a nozzle guard with an opening at a portion corresponding to the nozzle row, provided at a position via a gap with respect to an ink ejection surface of the nozzle row; a sheet shaped absorbing member having a size that covers a range of the opening of the nozzle guard; and a capping unit that presses the absorbing member onto the opening of the nozzle guard.
Abstract: A controller, upon a web roll being set on a web roll support shaft: drives a brake to apply a braking force of a first value to the web roll support shaft, the first value being a value at which the web roll does not rotate when a predetermined tension is applied to a web, and drives a conveyance motor to generate a drive force for the predetermined tension; drives the brake with the drive force generated to gradually reduce the braking force from the first value while determining whether rotation of a conveyance roller starts; and upon determining that the rotation of the conveyance roller starts, determines a second value of the braking force as an initial value of the braking force in conveyance of the web for printing, the second value being a value at which the rotation of the conveyance roller starts.
Abstract: A printing apparatus includes: a conveyor configured to convey a web print medium with holes arranged at a predetermined pitch in a conveyance direction; a printer configured to perform printing on the web print medium conveyed by the conveyor; a detector configured to detect the holes; and a controller. The controller is configured to drive the printer to start printing on the web print medium based on a timing at which a count value of the holes detected by the detector from start of conveyance of the web print medium by the conveyor reaches a setting value of a number of the holes located from the detector to a print start reference position on the web print medium at the start of conveyance of the web print medium by the conveyor.
Abstract: A controlling unit causes a valve and a pump to perform the following operations: (i) the controlling unit closes the valve and drives the pump in initial filling of an inkjet head with ink; (ii) the controlling unit stops the pump and opens the valve on or after a time point when a tip of ink within an ink route reaches a prescribed position, which is higher than that of the ink cartridge and on an inkjet head side viewed from a joining joint part; (iii) the controlling unit closes the valve after the ink within the ink route flows backward to move air in a direct route into the ink cartridge; and (iv) the controlling unit drives the pump to fill the inkjet head with ink.
Abstract: An aqueous inkjet ink is disclosed which contains water, a polyoxyethylene polyglyceryl ether and a colorant, wherein a ratio (B/A) of the total number (B) of hydroxyl groups within a molecule of the polyoxyethylene polyglyceryl ether relative to the weight average molecular weight (A) of the polyoxyethylene polyglyceryl ether is within a range from 0.002 to 0.012.
Abstract: A printing apparatus includes: a case having a door; a duct installed on an inner side of the door in the case and communicating with an outside of the case; a cover installed in the case and having an opening, the opening allowing an inside of the case and the outside of the case to communicate with each other via the duct of the door being closed; a fan configured to perform at least one of drawing of air into the case or exhausting of air from the case via the opening and the duct with the door being closed; and a shutter configured to open the opening during drive of the fan and close the opening while the door is open.
Abstract: An image reading device includes: a platen on which a document is placed; a platen cover openable and closable with respect to the platen; a cover-open sensor which detects a fact that the open/close angle of the platen cover has passed a predetermined angle from a close state; a CCD line sensor including charge coupled devices (CCD) arranged for recording a variation in distribution for a fixed period of time of incident light when detecting passing of the platen cover; a variation amount calculator which calculates a variation amount of incident light at each distribution point on the basis of a variation in distribution recorded by the CCD line sensor; and a variation amount determination unit which determines whether or not a variation amount calculated by the variation amount calculator exceeds a predetermined threshold.
Abstract: A controlling unit performs the following operations: (i) the controlling unit drives a pump with a direct valve closed and an air compression valve opened in initial filling of an inkjet head with ink; (ii) the controlling unit closes the air compression valve when a tip of ink introduced in an ink route reaches a prescribed position between a joining joint part and the air compression valve; (iii) the controlling unit stops the pump and opens the direct valve after closing the air compression valve; (iv) the controlling unit closes the direct valve and opens the air compression valve after the ink, which flows backward due to restoration of compressed air between the air compression valve and the ink, moves air in a direct route into the ink cartridge; and (v) the controlling unit drives the pump to fill the inkjet head with ink.
Abstract: An inkjet printer includes: at least one ink receptor having a tray shape with a bottom plate and an opening facing upward and being horizontally movable; and a suction unit. The at least one ink receptor is configured to receive ink ejected from at least one inkjet head as waste liquid. The suction unit includes at least one suction nozzle arranged above the bottom plate within a movable range of the at least one ink receptor and is configured to suction the ink in the at least one ink receptor through the opening with the at least one suction nozzle.
Abstract: An inkjet printer includes: at least one inkjet head configured to eject ink to a sheet and print an image; at least one stiffening conveyor configured to convey the sheet toward the at least one inkjet head in a conveyance direction while stiffening the sheet by deforming the sheet into a wave shape in a width direction orthogonal to the conveyance direction; and at least one platen arranged to face the at least one inkjet head and having a protrusion, the protrusion provided on a surface of the at least one platen facing the at least one inkjet head and configured to support a convex portion in the wave shape of the deformed sheet, the at least one platen configured to support the sheet while keeping the sheet deformed in the wave shape.
Abstract: A controller performs a positioning operation by driving an elevator motor before starting a paper feed operation using a paper feed roller unit. While the controller performs the paper feed operation using the paper feed roller unit after an upper limit sensor is brought into an on-state by the positioning operation, when the upper limit sensor is brought into an off-state, the controller performs a paper feed position following operation by driving the elevator motor to raise a paper feed tray until the upper limit sensor is brought into the on-state. The controller controls the elevator motor with setting a current limit in the positioning operation such that a current flowing to the elevator motor does not exceed a predetermined current limit value and controls the elevator motor without the current limit in the paper feed position following operation.
Abstract: A print-mode determination processor determines the print mode of a print job that is described in a page description language (PDL) and that has a print mode set to an automatic determination mode, using image data generated for a preflight check by a preflight checker that performs a preflight check of image data of a print job. The image data for a preflight check has a resolution lower than that of thumbnail image data and sufficient to determine whether to set a color print mode or a black-and-white print mode, such as presence or absence of a color part in the image data of the print job or the degree of the color part, so that the time required for generating and analyzing image data for print mode determination can be shortened.
Abstract: The ink jet head module includes: at least one ink jet head that ejects ink; an ink path that supplies ink to the ink jet head; a joint for connecting the ink path and a fitting portion of a printing apparatus main body; a handle which is operated according to attachment and detachment of the ink jet head module to the printing apparatus main body; and a fitting mechanism that inserts and extracts the fitting portion of the printing apparatus main body into and out from the joint in response to movement of the handle.
Abstract: A printer includes: a housing; a paper delivery table on which paper sheets delivered from an inside of the housing are stacked; a suction fan that sucks a gas that cools down the inside of the housing from an outside of the housing; and a first suction port that is a suction port through which a gas is sucked from the outside of the housing by the suction fan and through which a gas below a paper sheet that is delivered from the inside of the housing is sucked.
Abstract: The present invention discloses a method for producing a decorative article which includes a step of performing inkjet printing onto the surface of a humidity-conditioning base material using an aqueous inkjet ink containing at least water, a water-dispersible resin and a colorant, and also discloses a device for producing the decorative article.
Abstract: An inkjet printer includes: a closing unit configured to close at least part of an ink passage connected to an inkjet head to form a closed passage; a negative pressure generator configured to generate a negative pressure in the closed passage; an ink deliverer configured to deliver ink to the inkjet head via the ink passage; and a controller. The controller: drives the closing unit to form the closed passage; drives the negative pressure generator to generate the negative pressure in the closed passage; and, upon the negative pressure in the closed passage reaching a prescribed pressure, stops the negative pressure generator while driving the closing unit to release closure of the at least part of the ink passage, and drives the ink deliverer to discharge an air bubble together with the ink in the at least part of ink passage from the inkjet head.
Abstract: A calculator performs in parallel gamma correction calculations on gray level values 1 to Z depending on each of target nozzles for each of target pixels containing gray level values other than zero of pixels in image data to be printed by a multi-drop inkjet head including nozzles and having a maximum droplet number Z per pixel, the nozzles of the multi-drop inkjet head including the target nozzles for ink ejection on the respective target pixels. A selector selects a calculation result corresponding to a gray level value of the target pixel from calculation results of the gamma correction calculations performed on the gray level values 1 to Z by the calculator, for each of the target pixels.
Abstract: An inkjet printer includes: an inkjet head including nozzles and a nozzle surface tilted in a tilt direction with respect to a horizontal plane; a purging unit configured to discharge ink from the nozzles and attach the discharged ink to the nozzle surface; and a wiper configured to wipe the nozzle surface in a wiping direction orthogonal to the tilt direction. At least a portion of the wiper including an end of the wiper on a lower side in the tilt direction is tilted or curved toward a downstream side in the wiping direction toward the lower side in the tilt direction. The portion of the wiper is configured to wipe the nozzle surface while pushing the ink attached to the nozzle surface from the lower side to an upper side in the tilt direction.
Abstract: A sheet supplying device includes: an air blow opening configured to blow air to a side portion of an uppermost part of stacked sheets; and a flow adjuster extending from above the air blow opening over an edge of a top sheet of the stacked sheets and configured to cause an air flow blown from the air blow opening to travel along an upper surface of the top sheet of the stacked sheets.