Patent classifications
B41J2/16585
Inkjet recording apparatus for recording images by ejecting ink on recording media
Provided is an inkjet recording apparatus that reduces excessive or insufficient flushing of each of the nozzles by appropriately controlling the ink ejection amount in the next flushing for each nozzle based on the actual ink ejection state of each of the nozzles of a recording head during image formation. A control unit causes the recording head to execute flushing for ejecting the ink at a timing different from a timing that contributes to image formation on the recording medium. A conveyor belt has opening portions for allowing ink ejected from each of the nozzles of the recording head during flushing to pass. The control unit controls the ink ejection amount for each of the nozzles during the next flushing based on an integrated printing rate for each of the nozzles after the recording head has performed the previous flushing.
Inkjet recording apparatus for recording images by ejecting ink on recording media
Provided is an inkjet recording apparatus that reduces situations in which the recording medium becomes stained during flushing. A conveyor belt of the inkjet recording apparatus has a plurality of opening portion groups in a conveying direction of the recording medium in which opening portions for allowing ink ejected from each of the nozzles of the recording head to pass during the flushing are arranged in a belt width direction perpendicular to the conveying direction of the recording medium. A control unit determines a pattern of a plurality of opening portion groups used in flushing in one cycle of the conveyor belt according to the size of the recording medium, and causes the recording medium to be supplied from a recording medium supply unit between the opening portion groups arranged in the conveying direction in the pattern on the conveyor belt.
Recording device including a recording-time transport path and reversing path
A recording device has: a recording head configured to perform recording on a medium; a medium storage below the recording head configured to store the medium to be recoded; a supply path comprising a first curved supply path curved so as to be convex upward and transporting the medium fed out of the medium storage in a reversed direction via the first curved supply path; and a reversing path comprising a second curved path curved so as to be convex downward and transporting the recorded medium into a direction including a vertically upward component via second curved path from a direction including a vertically downward component; wherein the supply path joins the reversing path, and the first curved path and the second curved path overlap when viewed horizontally.
Waste liquid recovery apparatus and inkjet recording apparatus
A waste liquid recovery apparatus including a waste liquid tube through which waste liquid flows and a displacement mechanism. The displacement mechanism includes a driven portion that receives a driving force and operates owing to the driving force and a displacement portion that is displaced within a predetermined displacement range in conjunction with the operation of the driven portion. The waste liquid tube includes a flexible tube at least at a terminal end from which the waste liquid is issued. When the displacement portion is displaced within the predetermined displacement range, a contact depth of the displacement portion with respect to the contacted portion of the flexible tube, near the terminal end, changes.
System and method for efficiently purging printheads
A purge cycle is performed with an ink delivery system of an inkjet printer by applying a pressure pulse to a printhead in the printer that is substantially shorter than pressure pulses previously used. A pressure at a predetermined threshold is generated behind a valve and then release to the printhead. The duration of the pressure application is in a range of about 150 milliseconds to about 250 milliseconds. This pressure pulse substantially reduces the amount of ink emitted during the purge. A bidirectional wipe of the printhead face is effective for restoring inkjets in the printhead even though the amount of emitted ink is substantially reduced.
LIQUID LEAKAGE DETECTION DEVICE INCLUDING TWO ABSORPTION LAYERS AND PAIR OF TERMINALS, AND INK JET RECORDING APPARATUS
A liquid leakage detection device includes a first absorption layer, a second absorption layer, and a pair of terminals. The first absorption layer absorbs liquid. The second absorption layer is stacked on the first absorption layer, and absorbs the liquid. The pair of terminals are in contact only with the second absorption layer.
INKJET HEAD
An inkjet head includes a back end part, a front end part, and a heating plate. The back end part includes an ink passage. The back end part is fed with ink and delivers the fed ink. The front end part is supplied with ink from the back end part. The front end part includes nozzles. The heating plate includes a heating element to produce heat by electricity. The heating plate is disposed between the back end part and the front end part. The heating plate conducts heat from the other side of plane so as to heat the front end part. The heating plate conducts heat from one side of plane so as to heat the back end part.
LIQUID EJECTING HEAD WITH SEALING MEMBER, LIQUID EJECTING UNIT, LIQUID EJECTING DEVICE, AND METHOD OF MANUFACTURING LIQUID EJECTING UNIT
A liquid ejecting head with a sealing member includes: a liquid ejecting head including a liquid ejecting surface configured to eject ink; a fixing member configured to be attachable to and detachable from the liquid ejecting head; and a sealing member configured to seal the liquid ejecting head and the fixing member. When the liquid ejecting head to which the fixing member is joined is mounted on a cover, the sealing member seals the liquid ejecting head and the cover.
INKJET RECORDING APPARATUS
The inkjet recording apparatus includes a recording head, a first conveyor belt, and an ink receiving part. The ink receiving part includes a discharge port, a liquid-absorptive rotator, and a counter member. The discharge port is placed at an end portion in a crossing direction crossing a recording-medium conveyance direction, and discharges ink received in flashing. The liquid-absorptive rotator is formed from a liquid-absorptive material and rotated around a rotating shaft extending in the crossing direction. The counter member, being in contact with the liquid-absorptive rotator, has a conveyance structure for conveying ink in the ink receiving part in a carry-out direction directed toward the discharge port along an axial direction of the rotating shaft.
IMAGE FORMING APPARATUS
An image forming apparatus includes a recording head, a wiping unit and a moving mechanism. The recording head has a nozzle area where a plurality of ink ejection ports is opened downward. The wiping unit is moved in a first direction with coming into contact with the nozzle area and wipes the ink ejection ports. The moving mechanism performs a wiping operation and a returning operation. The moving mechanism includes a first drive source and a guide part. The first drive source moves the wiping unit in the first direction and in the second direction. The guide part guides the wiping unit in the first direction in the wiping operation, and guides the wiping unit in the first direction so as to separate the wiping unit from the nozzle area downward and then guides the wiping unit in the second direction in the returning operation.