The controller of an inkjet recording apparatus supplies a recording medium onto the conveyor belt with a pair of registration rollers based on a detection result of the trailing edge of the recording medium by a first detection sensor and a detection result of an opening by a second detection sensor. The controller determines whether the recording medium is being placed on the conveyor belt coinciding with the opening that is moved due to the traveling of the conveyor belt, and based on the determination result, the controller controls the recording head to execute flushing and the pair of registration rollers to supply a subsequent recording medium onto the conveyor belt.

A liquid ejecting apparatus includes a liquid ejecting head configured to eject liquid from a nozzle onto a medium to perform printing, a liquid accommodating unit configured to receive, via an opening, the liquid ejected by empty discharging that ejects the liquid from the liquid ejecting head separately from the printing, a cover movable to a closed position where the opening of the liquid accommodating unit is covered and an open position where the opening is opened, and a detection unit configured to detect the cover positioned at the closed position or the open position.

An inkjet recording apparatus includes a nozzle surface, a supply port, a conveyance unit, a first moving device, a cap, a second moving device and a controller. The supply port supplies a cleaning liquid for cleaning the nozzle surface. The cap has a recessed part whose upper surface is opened and a discharge port through which the liquid dropped in the recessed part is discharged. The controller controls the first moving device to arrange the nozzle surface and the conveyance unit in a retreat position, then controls the second moving device to arrange the cap, the nozzle surface and the supply port in a covering position, then controls such that the cleaning liquid is discharged from the supply port to the cap, and then controls such that the ink is purged from the nozzle surface to the cap.

A first chart is recorded on a recording medium by discharging ink from predetermined nozzles of a recording head at a plurality of discharge timings set in advance with the detection time point of the recording medium by a recording medium detection sensor as a reference time point, and a second chart is recorded alongside the first chart on the recording medium by discharging the ink from other nozzles of the recording head at a plurality of discharge timings set in advance with the detection time point of the recording medium by the opening detection sensor as a reference time point. A flushing timing, which is set with the detection time point of the opening by the opening detection sensor as the reference time point, is adjusted in accordance with an input of an instruction following the recording of the first chart and the second chart on the recording medium.

Examples relate to a method to print a print job. The method comprise comparing an operational parameter of the print job with a reference operational parameter and determining to perform a maintenance task during the print job based on at least a result of comparing the operational parameter with the reference operational parameter. If the maintenance task is to be performed, the method further comprises determining a safety area on a printable medium and performing a maintenance task on a printable medium.

A printing system includes a controller. The controller is configured to: receive first condition information related to an ejection failure in a printer; determine a maintenance manner applicable to the first condition information; cause the printer to perform a maintenance in the determined maintenance manner; receive second condition information related to the ejection failure in the printer after the maintenance is performed; determine whether an ejection performance in the printer has been improved based on the second condition information in response to performing the maintenance; update an evaluation index in accordance with determination of whether the ejection performance in the printer has been improved, the evaluation index corresponding to the determined maintenance manner.

A method for implementing a transistor using multiple integrated probe tips is provided. The method comprises the steps of (1) providing a sample; (2) providing a microscope probe comprising a plurality of probe tips; (3) contacting a first outer probe tip of the plurality of probe tips to the sample, wherein he first outer probe tip is configured to act as a source terminal for a transistor; (4) contacting a second outer probe tip of the plurality of probe tips to the sample, wherein the second outer probe tip is configured to act as a drain terminal for the transistor; (5) using an inner probe tip of the plurality of probe tips as a gate terminal for the transistor; and (6) characterizing the sample with the plurality of probe tips.

A liquid ejecting apparatus includes a liquid ejecting portion that has a supply port, a second discharge port, a plurality of nozzles, and a nozzle surface on which a plurality of the nozzles are open, and that discharges the liquid from the nozzles, a liquid supply flow path coupled to the supply port so that the liquid is supplied to the liquid ejecting portion, and a liquid return flow path coupled to the second discharge port so that the liquid supplied to the liquid ejecting portion is returned to the liquid supply flow path, in which a pressure lowering operation of lowering a pressure in the liquid ejecting portion is performed in a state where a flow of the liquid in the liquid return flow path is blocked after performing a pressurization discharge operation of pressurizing the liquid in the liquid ejecting portion and discharging the liquid from the nozzle.

A maintenance operation can be executed by ejecting a liquid when a time measured with reference to displacement of a cap from a maintenance position to a separation position exceeds a defined time. Before start of a recording operation in a recording job, a first medium waits at a standby position where the medium can wait upstream of a liquid ejection head. The cap is located at the separation position when a first medium in the recording job is waiting at the standby position. During an initial control period, in parallel with the maintenance operation, a post-processing operation can be executed on a second number of media that is smaller than a first number of media, and a post-processing operation can be executed on the first number of media in parallel with the maintenance operation after end of the initial control period.

An ink jet recording apparatus includes a cap, a control unit, and a recording unit having nozzle arrays each including a plurality of nozzles for ejecting ink in an image recording operation. The cap receives ink preliminarily ejected from the recording unit. The control unit controls an ejection operation to eject ink in response to receiving a recording command to cause an amount of ink ejected from a first nozzle group in a first preliminary ejection executed prior to the recording operation of the image to be smaller than an amount of ink ejected from a second nozzle group different from the first nozzle group in a second preliminary ejection executed prior to the recording operation of the image in a case where the recording command includes an instruction for recording the image by using the second nozzle group without using the first nozzle group among the plurality of nozzles.