Abstract: A liquid ejecting apparatus includes a driven element that is driven by a drive signal; an ejection head that ejects a liquid when the driven element is driven; a drive circuit that outputs the drive signal, the drive circuit including an amplifier circuit that includes a first transistor and amplifies, based on an amplification voltage and through an operation of the first transistor, a base drive signal based on which the drive signal is generated; and a leakage current detection circuit that detects a leakage current in the drive circuit. The leakage current detection circuit is electrically connected to the first transistor included in the amplifier circuit to which the amplification voltage is supplied.

Abstract: A device outputs a first low voltage to a first terminal at a first timing in a period in which a voltage input to a second terminal is a high voltage. After outputting the first low voltage, the device outputs a second high voltage to the first terminal at a second timing in a period in which the voltage input to the second terminal is a low voltage. After outputting the second high voltage, the device outputs a second low voltage to the first terminal at a third timing in a period in which the voltage input to the second terminal is a high voltage.

Abstract: In a board that includes a plurality of contact portions that are arranged to contact corresponding apparatus-side terminals when the board is mounted in a printing apparatus, some contact portions are disposed in a first region, and the remaining contact portions are disposed in a second region. The some contact portions include a first contact portion, a second contact portion, a third contact portion, and a fourth contact portion. The remaining contact portions include a fifth contact portion. The some contact portions are arranged in a first pattern in the first region and the remaining contact portions are arranged in a second pattern in the second region, and the first pattern is asymmetrical to the second pattern with respect to a first virtual line.

Abstract: A device outputs a first low voltage to a first terminal at a first timing in a period in which a voltage input to a second terminal is a high voltage. After outputting the first low voltage, the device outputs a second high voltage to the first terminal at a second timing in a period in which the voltage input to the second terminal is a low voltage. After outputting the second high voltage, the device outputs a second low voltage to the first terminal at a third timing in a period in which the voltage input to the second terminal is a high voltage.

Abstract: In a board that includes a plurality of contact portions that are arranged to contact corresponding apparatus-side terminals when the board is mounted in a printing apparatus, some contact portions are disposed in a first region, and the remaining contact portions are disposed in a second region. The some contact portions include a first contact portion, a second contact portion, a third contact portion, and a fourth contact portion. The remaining contact portions include a fifth contact portion. The some contact portions are arranged in a first pattern in the first region and the remaining contact portions are arranged in a second pattern in the second region, and the first pattern is asymmetrical to the second pattern with respect to a first virtual line.

Abstract: A liquid ejecting apparatus includes a digital signal output circuit and a liquid accommodating container, in which the print head includes a supply port, a nozzle plate, a substrate having first and second sides positioned opposite to each other, third and fourth sides positioned opposite to each other, a first surface, and a second surface, a connector to which the digital signal is input, and an integrated circuit to which the digital signal is input via the connector and that outputs an abnormality detection signal, the connector is provided on the first surface, the integrated circuit is provided on the second surface, the substrate includes an annular wiring electrically coupled to the integrated circuit, and the annular wiring is disposed in an annular shape along an outer periphery of the substrate including the first side, the second side, the third side, and the fourth side.

Abstract: A control unit of a liquid consumption apparatus performs determination processing that determines whether or not each of a first housing container and a second housing container is an unsuitable container that does not satisfy a use condition, performs switching decision that decides switching of a supply source that supplies a liquid composition to a liquid consumption unit to the second housing container when the first housing container is determined to be the unsuitable container while the liquid composition is being supplied from the first housing container to the liquid consumption unit, and continues supply of the liquid composition from the first housing container to the liquid consumption unit regardless of whether or not the second housing container is the unsuitable container until when the switching decision is performed while the liquid composition is being supplied from the first housing container to the liquid consumption unit.

Abstract: A liquid container has: a liquid storage section that stores a liquid; a surrounding wall that envelops the liquid storage section; a liquid supply opening formed in the surrounding wall, the liquid supply opening enabling the liquid to be supplied from the liquid storage section to the liquid introducing section; a first storage device that can be electrically coupled to the holder-side terminal through a first contact section; and a second storage device that can be electrically couple to the holder-side terminal through a second contact section. Even when the liquid container is rotated by 180 degrees around the central axis of the liquid supply opening and is mounted in the holder, either of the first storage device and second storage device is coupled to the holder-side terminal. Information about the amount of the liquid is stored in both the first storage device and the second storage device.

Abstract: A liquid supply apparatus includes a liquid storage container including a memory, a liquid feeding mechanism that feeds out liquid to the print head, and a second controller. A first liquid consumption amount is a consumption amount of liquid consumed in a non-printing operation in which liquid is not discharged from the print head to a recording medium, and a second liquid consumption amount is a consumption amount of liquid consumed in a printing operation in which liquid is discharged from the print head to the recording medium. The second controller calculates the second liquid consumption amount based on a liquid feeding amount of liquid fed out from the liquid feeding mechanism in a printing operation, stores the second liquid consumption amount in the memory, receives the first liquid consumption amount from the first controller, and stores the first liquid consumption amount in the memory.

Abstract: A liquid supply apparatus includes a liquid storage container including a memory, a liquid feeding mechanism that feeds out liquid to the print head, and a second controller. A first liquid consumption amount is a consumption amount of liquid consumed in a non-printing operation in which liquid is not discharged from the print head to a recording medium, and a second liquid consumption amount is a consumption amount of liquid consumed in a printing operation in which liquid is discharged from the print head to the recording medium. The second controller calculates the second liquid consumption amount based on a liquid feeding amount of liquid fed out from the liquid feeding mechanism in a printing operation, stores the second liquid consumption amount in the memory, receives the first liquid consumption amount from the first controller, and stores the first liquid consumption amount in the memory.

Abstract: A liquid container has: a liquid storage section that stores a liquid; a surrounding wall that envelops the liquid storage section; a liquid supply opening formed in the surrounding wall, the liquid supply opening enabling the liquid to be supplied from the liquid storage section to the liquid introducing section; a first storage device that can be electrically coupled to the holder-side terminal through a first contact section; and a second storage device that can be electrically couple to the holder-side terminal through a second contact section. Even when the liquid container is rotated by 180 degrees around the central axis of the liquid supply opening and is mounted in the holder, either of the first storage device and second storage device is coupled to the holder-side terminal. Information about the amount of the liquid is stored in both the first storage device and the second storage device.

Abstract: A control unit of a liquid consumption apparatus performs determination processing that determines whether or not each of a first housing container and a second housing container is an unsuitable container that does not satisfy a use condition, performs switching decision that decides switching of a supply source that supplies a liquid composition to a liquid consumption unit to the second housing container when the first housing container is determined to be the unsuitable container while the liquid composition is being supplied from the first housing container to the liquid consumption unit, and continues supply of the liquid composition from the first housing container to the liquid consumption unit regardless of whether or not the second housing container is the unsuitable container until when the switching decision is performed while the liquid composition is being supplied from the first housing container to the liquid consumption unit.

Abstract: Provided is a technique that can reduce at least one of various inconveniences in a sub-tank, such as stock management being complicated. The sub-tank includes: a consumable article containing portion; a sub-tank-side storage unit; and a case that can be detachably attached to multiple slots in a consumable article consumption apparatus and contains the consumable article containing portion. In a state before the sub-tank is first mounted in the slot, the sub-tank-side storage unit stores a sub-tank-side identifier configured to distinguish from another sub-tank, and in a state after the sub-tank is first mounted in the slot, the sub-tank-side storage unit further stores sub-tank-side consumable article information relating to an attribute of the consumable article replenished in a consumable article containing portion.

Abstract: A printer has a recording head, a relay container from which ink is supplied to the recording head, and to which the ink is supplied from a terminal container, a pressurizing pump and a depressurizing pump for supplying the ink from the terminal container to the relay container, and a control unit. The control unit calculates an estimated consumption amount of the relay container based on the amount of the ink supplied from the relay container to the recording head, and consumed and the amount of the ink supplied from the terminal container to the relay container, and calculates the amount of the ink supplied from the terminal container to the relay container using the minimum value of tolerance of a supply amount of the depressurizing pump.

Abstract: A printing apparatus (200) includes a slot (230) to and from which a memory unit (100) storing permitted usage amount information can be attached and removed, and a processing unit (210) that carries out a process for updating estimated ink amount information. The processing unit (210) carries out a charging process using a first memory unit (100-1), and in the case where a second memory unit (100-2) has been attached to the slot (230) after the charging process, the processing unit (210) does not carry out a charging process using the second memory unit (100-2) until a consumed ink amount expressed by the estimated ink amount information exceeds a prescribed threshold (WTH). The processing unit (210) carries out the charging process using the second memory unit (100-2) in the case where the consumed ink amount has exceeded the prescribed threshold (WTH).

Abstract: The control unit, when a first condition in which a minimum value of a suppliable time that is a time it takes for an amount of liquid contained in each supply-side sub tank to reach an amount corresponding to a switching preparation time necessary for switching between the refill-side sub tank and the supply-side sub tank is less than or equal to a maximum value of a full refill refilling time that is a period from when refill processing for performing refilling of the liquid from the main tank is started in each of the plurality of refill-side sub tanks until a state is achieved in which the refill-side sub tank is fully re-filled with liquid and can supply the liquid is satisfied, the refill processing is performed on the plurality of refill-side sub tanks.

Abstract: A printing apparatus includes a slot to and from which a memory unit storing permitted usage amount information can be attached and removed, and a processing unit that carries out a process for updating estimated ink amount information that is information for estimating an amount of the ink in an ink holding unit. When the memory unit is attached to the slot, the processing unit carries out a charging process that updates the estimated ink amount information using the permitted usage amount information in the memory unit, on the basis of a process for determining whether or not consumed ink amount expressed by the estimated ink amount information exceeds a prescribed threshold (WTH). The processing unit executes forced charging process that executes the charging process in the case where there is an instruction from an operator of the printing apparatus before the prescribed threshold WTH is exceeded.

Abstract: Provided is a technique that can reduce at least one of various inconveniences in a sub-tank, such as stock management being complicated. The sub-tank includes: a consumable article containing portion; a sub-tank-side storage unit; and a case that can be detachably attached to multiple slots in a consumable article consumption apparatus and contains the consumable article containing portion. In a state before the sub-tank is first mounted in the slot, the sub-tank-side storage unit stores a sub-tank-side identifier configured to distinguish from another sub-tank, and in a state after the sub-tank is first mounted in the slot, the sub-tank-side storage unit further stores sub-tank-side consumable article information relating to an attribute of the consumable article replenished in a consumable article containing portion.

Abstract: Provided is a printing apparatus capable of continuous printing. A printing apparatus (200) includes a slot (230) to and from which a memory unit (100) storing permitted usage amount information can be attached and removed, and a processing unit (210) that carries out a process for updating estimated ink amount information that is information for estimating an amount of the ink in an ink holding unit (220). In a state where the memory unit (100) is attached to the slot (230), the processing unit (210) carries out a charging process that updates the estimated ink amount information using the permitted usage amount information, on the basis of a process for determining whether or not consumed ink amount expressed by the estimated ink amount information exceeds a prescribed threshold (WTH). The processing unit (210) carries out a setting process for making the prescribed threshold (WTH) variable.

Abstract: A printing apparatus 10 calculates an consumed ink amount which is a consumed amount of ink ejected from an ejection unit that ejects ink supplied from an ink cartridge 60, and, in the case where an unused ink cartridge 60 is installed, executes initial maintenance of the ejection unit, determines an initial consumed ink amount which is a consumed amount of liquid consumed by the initial maintenance, writes the consumed ink amount and the initial consumed ink amount to a storage device 70 of the ink cartridge 60 as a consumed ink amount 73 and an initial consumed ink amount 75, and generates and notifies a ratio of the difference between the contained ink amount 71 and the consumed ink amount that is updated relative to the difference between the contained ink amount 71 and the initial consumed ink amount 75 as notification-use information.