Abstract: The liquid discharge device determines a signal received from an installation sensor in response to receiving a discharge instruction, and when determined that a high level signal is received, control executing image recording in a first mode in which a waiting time Tw1 is set, and control executing image recording in a second mode in which a waiting time Tw2 is set.

Abstract: An apparatus displays an S_Empty informing screen on a display when a count value N reaches a threshold Nth, reads a liquid amount Vc from an IC chip of a cartridge which is installed, calculates an outflow amount Qc of a liquid flowing out from the cartridge to a tank at a period ?t based on the read liquid amount Vc, and erases the S_Empty informing screen from the display when the calculated outflow amount Qc is equal to or larger than a threshold Qth1.

Abstract: A liquid discharge device is configured to display, on a display, an S_Empty notification screen in a state where a low level signal is not received from a liquid level sensor and a count value SN2 reaches a second threshold value Nth2. The liquid discharge device is configured to erase the S_Empty notification screen in a state where the low level signal is received after receiving a high level signal is received from an installation sensor.

Abstract: A liquid discharge apparatus includes a case receiving a cartridge, a tank, a head, and a controller to: when the cartridge is installed in the case, calculate an outflow amount Qc based on heights Hc, Hs and flow path resistances; read the amounts Vc, Vs from a memory; subtract the outflow amount Qc from the read liquid amount Vc to calculate new liquid amount Vc; add the outflow amount Qc to the read liquid amount Vs to calculate new liquid amount Vs; store the calculated liquid amounts Vc, Vs in the memory; after a time period from at the time the calculated liquid amounts Vc, Vs stored elapses, again calculate the outflow amount Qc and the liquid amounts Vc, Vs and store the calculated liquid amounts Vc, Vs in the memory.

Abstract: A discharger is configured to discharge liquid in a liquid channel to outside the liquid channel. The liquid is at least one of first liquid and second liquid different from the first liquid. An agitator is configured to agitate the liquid in the liquid channel. When executed by a processor, instructions cause the processor to perform: an introducing process of, when the second liquid exists in the liquid channel, controlling the discharger to discharge the second liquid to outside the liquid channel and to introduce the first liquid from the tank into the liquid channel; an agitating process of, after the introducing process, controlling the agitator to agitate the liquid in the liquid channel; and a discharging process of, after the agitating process, controlling the discharger to discharge the liquid in the liquid channel agitated by the agitator to outside the liquid channel.

Abstract: A liquid discharge apparatus is configured to activate a first notification in a case where a liquid level of a tank is less than a threshold. In a case where a cartridge is installed after activating the first notification, a controller determines outflow amount Vcs of the liquid flowing into the tank based on the liquid amount of the installed cartridge, and controls a notification device based on the determined outflow amount Vcs.

Abstract: An inkjet recording apparatus to which a cartridge is attachable includes: a tank including a storage chamber and an outlet port; a recording portion including a damper chamber and a recording head; an ink passage; a pump configured to suck fluid in the damper chamber; a first switch; and a controller. After attachment of the cartridge, the controller is configured to perform an initial ink introduction process to supply the ink from the cartridge to the storage chamber. The initial ink introduction process includes: a first suction process to drive the pump for a first period of time in a state where the first switch is in a first state to allow ink in the storage chamber to be sucked toward the damper chamber; and after performing the first suction process, an open process to switch the first switch to a second state.

Abstract: The liquid discharge device determines a signal received from an installation sensor in response to receiving a discharge instruction, and when determined that a high level signal is received, control executing image recording in a first mode in which a waiting time Tw1 is set, and control executing image recording in a second mode in which a waiting time Tw2 is set.

Abstract: An inkjet recording apparatus includes: a first tank; a second tank; a recording portion including a first damper chamber and a second damper chamber; a first switch; a pump; a second switch; and a controller. The first switch is configured to be switched between a first state and a second state. The second switch is configured to be switched between a third state and a fourth state. After attachment of first and second cartridges to the inkjet recording apparatus, the controller performs an initial ink introduction including one of: a first drive process to drive the pump in a state where the first switch is in the first state and the second switch is in the fourth state; and a second drive process to drive the pump in a state where the first switch is in the second state and the second switch is in the third state.

Abstract: Aspects of a disclosure relates to a liquid discharge device enables previously disabled liquid discharge through a head after a cartridge including a first liquid chamber is replaced and before the liquid level in a second liquid chamber of a tank reaches a predetermined level or higher. Another aspects of the disclosure relates to a liquid discharge device that deactivates an alarm after a cartridge including a first liquid chamber is replaced and before the liquid level in a second liquid reaches a predetermined level or higher.

Abstract: A liquid discharge apparatus is configured to activate a first notification in a case where a liquid level of a tank is less than a threshold. In a case where a cartridge is installed after activating the first notification, a controller determines outflow amount Vcs of the liquid flowing into the tank based on the liquid amount of the installed cartridge, and controls a notification device based on the determined outflow amount Vcs.

Abstract: An apparatus, for discharging a liquid through a head based on a first discharge instruction, is configured to: update a liquid amount V stored in the memory with a value equivalent to the amount of liquid instructed to be discharged by the first discharge instruction; determine whether the updated liquid amount V is equal to or larger a threshold amount; update the liquid amount V stored in a memory to a predetermined value in response to determining that the updated liquid amount V is equal to or larger than the threshold amount and receiving a second signal from the liquid level sensor; and prohibit the liquid from being discharged through the head in response to determining that the updated liquid amount V is less than the threshold amount and receiving the first signal from the liquid level sensor.

Abstract: The liquid discharge device performs a series of process including: controlling a head to discharge ink in response to receiving discharge instruction; calculating a waiting time Tw based on ink discharge amount Dh after completing the discharge of the ink; executes counting process based on a signal received from a liquid level sensor after elapse of the waiting time T2 from the completion of discharging the ink from the head.

Abstract: The liquid discharge device determines a signal received from an installation sensor in response to receiving a discharge instruction, and when determined that a high level signal is received, control executing image recording in a first mode in which a waiting time Tw1 is set, and control executing image recording in a second mode in which a waiting time Tw2 is set.

Abstract: There is provided a waste liquid tank including: a casing including an inner wall surface and a communication port; an absorber; a rib protruding from the inner wall surface, extending along the inner wall surface in an extending direction from a position distant from the communication port to a position close to the communication port, and being in contact with the absorber to form a gap between the absorber and the inner wall surface; and an atmosphere communication hole provided in a part, of the inner wall surface, facing the gap. An end of the rib on a side opposite to the communication port in the extending direction is closer to the communication port than the atmosphere communication hole.

Abstract: A waste liquid tank includes a case. The case includes a first accommodating portion having an inlet and a first communication opening, a second accommodating portion having a second communication opening and a connecting portion connecting the first communication opening and the second communication opening, wherein a cross-sectional area of the connecting portion is less than a cross-sectional area of the first accommodating portion and is less than a cross-sectional of the second accommodating portion. The waste liquid tank includes a first absorber accommodated in the first accommodating portion, a second absorber accommodated in the second accommodating portion and a third absorber accommodated in the connecting portion. The connecting portion includes a passage defined between the third absorber and a peripheral portion of the connecting portion, the passage allowing the first accommodating portion to communicate with the second accommodating portion and for air to pass therethrough.

Abstract: An apparatus, for discharging a liquid through a head based on a first discharge instruction, is configured to: update a liquid amount V stored in the memory with a value equivalent to the amount of liquid instructed to be discharged by the first discharge instruction; determine whether the updated liquid amount V is equal to or larger a threshold amount; update the liquid amount V stored in a memory to a predetermined value in response to determining that the updated liquid amount V is equal to or larger than the threshold amount and receiving a second signal from the liquid level sensor; and prohibit the liquid from being discharged through the head in response to determining that the updated liquid amount V is less than the threshold amount and receiving the first signal from the liquid level sensor.

Abstract: A liquid discharge apparatus includes a case receiving a cartridge having a first chamber, a tank having a second chamber, a head, and a controller to: calculate outflow amount Qa flowed from the second chamber for a time period ?t based on discharge amount Dh; calculate outflow amount Qc flowed from the first chamber toward the second chamber for the time period ?t based on the outflow amount Qa and flow path resistances; read liquid amounts Vc and Vs of the first and second chambers from a memory; subtract the outflow amount Qc from the read liquid amount Vc to calculate new liquid amount Vc; subtract the outflow amount Qa from the read liquid amount Vs and add the outflow amount Qc to calculate new liquid amount Vs; and store the calculated liquid amounts Vc and Vs in the memory.

Abstract: A liquid discharge apparatus includes: a cartridge including a first liquid chamber and a first flow path; a tank including a second liquid chamber and a third flow path, at least one of the first flow path and the third flow path communicating the first and second liquid chambers when the cartridge is installed in an installation case; and a controller configured to: when the cartridge is installed in the installation case, determine a liquid amount Vs based on an outflow amount Qc of liquid flowed out from the cartridge toward the tank and a discharge liquid amount; determine whether elapsed time reaches standby time after determining that the liquid amount Vs reaches a first threshold value; and when the elapsed time reaches the standby time, perform image recording of next unit recording area.

Abstract: A liquid discharge apparatus includes a case receiving a cartridge, a tank, a head, and a controller to: when the cartridge is installed in the case, calculate an outflow amount Qc based on heights Hc, Hs and flow path resistances; read the amounts Vc, Vs from a memory; subtract the outflow amount Qc from the read liquid amount Vc to calculate new liquid amount Vc; add the outflow amount Qc to the read liquid amount Vs to calculate new liquid amount Vs; store the calculated liquid amounts Vc, Vs in the memory; after a time period from at the time the calculated liquid amounts Vc, Vs stored elapses, again calculate the outflow amount Qc and the liquid amounts Vc, Vs and store the calculated liquid amounts Vc, Vs in the memory.