Abstract: According to one embodiment, a liquid supply device includes a tank with an lower portion and an upper portion. The lower portion is partitioned into a first chamber side and a second chamber side. The upper portion permits flow of liquid between the first and second chamber sides. The first chamber side is connected by a first flow path portion to a primary side of a filter. The second chamber side is connected by a second flow path portion to the primary side of the filter. A secondary side of the filter is connected by a third flow path portion to a liquid ejection head.

Abstract: A game program according to an exemplary embodiment causes a computer to, based on an operation input provided by the player, move a cursor object indicating a position on a terrain object having a difference in height in a three-dimensional virtual space, and when the cursor object moves, output different cursor sounds in accordance with a height of the terrain object indicated by the cursor object.

Abstract: According to one embodiment, a liquid discharge head includes a pressure chamber and a nozzle. The pressure chamber extends in a first direction from a first end to a second end and forms a flow path for a fluid to be ejected from the nozzle. The nozzle is for ejecting liquid from the pressure chamber in a second direction intersecting the first direction. The nozzle is at a position offset from a midpoint of the pressure chamber in the first direction towards one of the first or second ends of the pressure chamber.

Abstract: An example image processing apparatus disposes a virtual camera and a terrain object in a virtual space, and generates grass objects at a predetermined region located with reference to a land horizon that is a boundary between the terrain object and a background as viewed from the virtual camera. A player character is displayed at a position closer to the virtual camera, and the grass objects are generated in the predetermined region located with reference to the land horizon. Therefore, the terrain can be represented to look real, and the player character can be more easily seen.

Abstract: An example image processing apparatus disposes a virtual camera and a terrain object in a virtual space, and generates grass objects at a predetermined region located with reference to a land horizon that is a boundary between the terrain object and a background as viewed from the virtual camera. A player character is displayed at a position closer to the virtual camera, and the grass objects are generated in the predetermined region located with reference to the land horizon. Therefore, the terrain can be represented to look real, and the player character can be more easily seen.

Abstract: An example image processing apparatus disposes a virtual camera and a terrain object in a virtual space, and generates grass objects at a predetermined region located with reference to a land horizon that is a boundary between the terrain object and a background as viewed from the virtual camera. A player character is displayed at a position closer to the virtual camera, and the grass objects are generated in the predetermined region located with reference to the land horizon. Therefore, the terrain can be represented to look real, and the player character can be more easily seen.

Abstract: In accordance with an embodiment, a liquid discharge head comprises an actuator and a controller. The actuator drives a pressure chamber, which is filled with liquid and communicates with a nozzle in which a meniscus of the liquid is formed. The controller applies an acceleration pulse for accelerating vibration of the meniscus to the actuator after applying a discharge pulse for discharging the liquid in the pressure chamber from the nozzle.

Abstract: According to one embodiment, a driving device includes a head driver configured to generate and apply a driving signal to an actuator for ejecting a liquid from a pressure chamber connected to a nozzle, the driving signal including a contraction pulse, the contraction pulse causing the actuator to contract a volume of the pressure chamber, and end application of the contraction pulse when a flow rate of the liquid from the nozzle has a negative value in a liquid ejection direction from the nozzle.

Abstract: According to one embodiment, a waveform generating device includes a head driver configured to apply a driving signal to an actuator to discharge ink from a pressure chamber connected to a nozzle, the driving signal including a first portion for reducing an ink pressure in the pressure chamber and a second portion for increasing the ink pressure in the pressure chamber. The second portion is increased in potential by a first potential increase when ink pressure in the pressure chamber is at a maxima and the second portion is further increased in potential by a second potential increase when the ink pressure of the pressure chamber is at a negative value after the first potential increase.

Abstract: According to one embodiment, a fluid discharge head includes a pressure chamber, an actuator, and an application unit. The pressure chamber accommodates a fluid. The application unit applies the driving signal for discharging a fluid from a nozzle communicating with the pressure chamber to the actuator. The driving signal includes a first pulse for driving the actuator to decrease the pressure of the fluid in the pressure chamber and a second pulse for driving the actuator to increase the pressure of the fluid in the pressure chamber. When a half period of a natural oscillation period of the fluid in the pressure chamber is AL, an application time T of the first pulse satisfies a condition of T<AL. A ratio between a voltage of the first pulse and a voltage of the second pulse is ?0.95 to ?1.05.

Abstract: In accordance with an embodiment, a liquid discharge head comprises an actuator and a controller. The actuator drives a pressure chamber, which is filled with liquid and communicates with a nozzle in which a meniscus of the liquid is formed. The controller applies an acceleration pulse for accelerating vibration of the meniscus to the actuator after applying a discharge pulse for discharging the liquid in the pressure chamber from the nozzle.

Abstract: According to one embodiment, a waveform generating device includes a head driver configured to apply a driving signal to an actuator to discharge ink from a pressure chamber connected to a nozzle, the driving signal including a first portion for reducing an ink pressure in the pressure chamber and a second portion for increasing the ink pressure in the pressure chamber. The second portion is increased in potential by a first potential increase when ink pressure in the pressure chamber is at a maxima and the second portion is further increased in potential by a second potential increase when the ink pressure of the pressure chamber is at a negative value after the first potential increase.

Abstract: According to one embodiment, a driving device includes a head driver configured to generate and apply a driving signal to an actuator for ejecting a liquid from a pressure chamber connected to a nozzle, the driving signal including a contraction pulse, the contraction pulse causing the actuator to contract a volume of the pressure chamber, and end application of the contraction pulse when a flow rate of the liquid from the nozzle has a negative value in a liquid ejection direction from the nozzle.

Abstract: A liquid circulation apparatus includes a main tank that stores a liquid, an upstream tank connectable to an upstream side of an inkjet head, a downstream tank connectable to a downstream side of the inkjet head, a pump configured to supply the liquid from the main tank at an amount larger than a sum of an amount of liquid passing through the inkjet head and an amount of liquid ejected from the inkjet head. The upstream tank includes a first upstream liquid chamber configured to be at a hydrostatic position higher than a nozzle of the inkjet head and connected to the pump, a second upstream liquid chamber configured to be connected to the inkjet head, and a third upstream liquid chamber connected to the main tank. The downstream tank includes a first downstream liquid chamber configured to be at a hydrostatic position lower than the nozzle.

Abstract: According to one embodiment, an inkjet head driving device includes an ejection pulse generation circuit configured to generate an ejection pulse to be applied to an actuator for ejecting ink from a pressure chamber connected to a nozzle, and an expansion pulse generation circuit configured to generate an expansion pulse to be applied to the actuator after at least one ejection pulse, the expansion pulse causing the actuator to expand a volume of the pressure chamber to prevent ink from being ejected from the nozzle.

Abstract: In a stand-by state, when an instruction unit issues the printing instruction, a control unit is switched in a maintenance state, in the maintenance state, the control unit closes an air valve and operates a first pump, and when a sensor detects that the ink of a second tank is reduced by discharging the ink from a nozzle by the pressure of a second tank, the control unit opens the air valve to be switched in a printing state, and when a predetermined time elapses after an operation of the first pump before the sensor detects the reduction of the ink of the second tank, the control unit excludes the solidified ink from the nozzle, and in the printing state, the control unit is switched in the stand-by state when the ink is discharged from the nozzle of the head based on a printing instruction.

Abstract: According to one embodiment, an inkjet recording apparatus includes a plurality of inkjet heads of a multi-drop method, a first controller, and a second controller. The first controller controls ejection of ink drops from a first inkjet head for ejecting a first ink for which print resolution is required, in a manner that a number of ink dots formed in a main scanning direction is great, and that the number of ink drops ejected for each one of the ink dots is small. The second controller controls ejection of the ink drops from a second inkjet head for ejecting a second ink for which coverage over a recording surface of the recording medium is required, in a manner that a number of ink dots formed in the main scanning direction is small, and that the number of ink drops ejected for each of the ink dots is great.

Abstract: In a stand-by state, when an instruction unit issues the printing instruction, a control unit is switched in a maintenance state, in the maintenance state, the control unit closes an air valve and operates a first pump, and when a sensor detects that the ink of a second tank is reduced by discharging the ink from a nozzle by the pressure of a second tank, the control unit opens the air valve to be switched in a printing state, and when a predetermined time elapses after an operation of the first pump before the sensor detects the reduction of the ink of the second tank, the control unit excludes the solidified ink from the nozzle, and in the printing state, the control unit is switched in the stand-by state when the ink is discharged from the nozzle of the head based on a printing instruction.

Abstract: In a stand-by state, when an instruction unit issues the printing instruction, a control unit is switched in a maintenance state, in the maintenance state, the control unit closes an air valve and operates a first pump, and when a sensor detects that the ink of a second tank is reduced by discharging the ink from a nozzle by the pressure of a second tank, the control unit opens the air valve to be switched in a printing state, and when a predetermined time elapses after an operation of the first pump before the sensor detects the reduction of the ink of the second tank, the control unit excludes the solidified ink from the nozzle, and in the printing state, the control unit is switched in the stand-by state when the ink is discharged from the nozzle of the head based on a printing instruction.

Abstract: In a stand-by state, when an instruction unit issues the printing instruction, a control unit is switched in a maintenance state, in the maintenance state, the control unit closes an air valve and operates a first pump, and when a sensor detects that the ink of a second tank is reduced by discharging the ink from a nozzle by the pressure of a second tank, the control unit opens the air valve to be switched in a printing state, and when a predetermined time elapses after an operation of the first pump before the sensor detects the reduction of the ink of the second tank, the control unit excludes the solidified ink from the nozzle, and in the printing state, the control unit is switched in the stand-by state when the ink is discharged from the nozzle of the head based on a printing instruction.