Chemical liquid dispensing apparatus and chemical liquid discharging device

1. A liquid discharging device to be used with mounted on a mounting portion of a liquid dispensing apparatus, the liquid discharging device comprising:

a base member of a flat planar shape with engaging portions for mounting to a mounting portion of a liquid dispensing apparatus;

a discharging portion on the base member and configured to discharge a liquid based on a control signal from the liquid dispensing apparatus; and

a sheet material connected to the discharging portion and configured to indicate a use history of whether or not the liquid has been discharged from the discharging portion.

2. The liquid discharging device according to claim 1 , wherein the discharging portion is configured to discharge the liquid based on the control signal from the liquid dispensing apparatus when the use history indicates the liquid discharging device has not been previously used for discharging the liquid.

3. The liquid discharging device according to claim 1 , further comprising:

a film that covers a liquid holding container in the discharging portion.

4. The liquid discharging device according to claim 1 , wherein the use history is indicated by a shape of the sheet material.

5. The liquid discharging device according to claim 1 , wherein the use history is indicated by a color of the sheet material.

6. The liquid discharging device according to claim 5 , further comprising:

a heater configured to heat the sheet material to change the color.

7. A liquid dispensing apparatus, comprising:

a mounting portion on which a liquid discharging device is mounted by engagement with engaging portions of a flat planar base member of the liquid discharging device;

a reading unit configured to detect a use history of the liquid discharging device that is indicated by a sheet material which is part of the liquid discharging device, the use history indicating whether or not liquid has been previously discharged by a discharging portion of the liquid discharging device; and

a processor configured to supply a control signal to cause the liquid discharging device mounted on the mounting portion to discharge a liquid only if the use history, as detected by the reading unit, indicates the discharging portion of the liquid discharging device has not been previously used for discharging the liquid.

8. The liquid dispensing apparatus according to claim 7 , further comprising:

a forming portion including a cutting blade configured to change a shape of the sheet material to change the use history of the liquid discharging device mounted on the mounting portion.

9. The liquid dispensing apparatus according to claim 7 , wherein the liquid discharging device comprises a heater configured to heat the sheet material to change a color of the sheet material to change the use history of the liquid discharging device mounted on the mounting portion.

10. The liquid dispensing apparatus according to claim 9 , further comprising:

a driving circuit connected to the heater and configured supply electric power to the heater, wherein

the processor is further configured to control the driving circuit to supply the electric power to the heater after a discharge of the liquid by the liquid discharging device.

11. A liquid dispensing apparatus, comprising:

a liquid discharging device;

a mounting portion to which the liquid discharging device is mounted by engagement with engaging portions of a flat planar base member of the liquid discharging device;

a reading unit configured to detect a use history of the liquid discharging device that is indicated by a sheet material which is part of the liquid discharging device, the use history indicating whether or not liquid has been previously discharged by a discharging portion of the liquid discharging device; and

a processor configured to supply a control signal to cause the liquid discharging device mounted on the mounting portion to discharge a liquid only if the use history of the liquid discharging device, as detected by the reading unit, indicates the discharging portion of the liquid discharging device has not been previously used for discharging the liquid.

12. The liquid dispensing apparatus according to claim 11 , further comprising:

a film that covers a liquid holding container in the discharging portion.

13. The liquid dispensing apparatus according to claim 11 , wherein the use history is indicated by a shape of the sheet material.

14. The liquid dispensing apparatus according to claim 13 , further comprising:

a forming portion including a cutting blade configured to change the shape of the sheet material to change the use history of the liquid discharging device mounted on the mounting portion.

15. The liquid dispensing apparatus according to claim 11 , wherein the use history is indicated by a color of the sheet material.

16. The liquid dispensing apparatus according to claim 15 , wherein the liquid discharging device further comprises a heater configured to heat the sheet material to change the color.

17. The liquid dispensing apparatus according to claim 11 , wherein the reading unit comprises:

an irradiation unit configured to irradiate the sheet material with light; and

a detection unit configured to detect reflected light from the sheet material.

18. The liquid dispensing apparatus according to claim 11 , wherein

the liquid discharging device further comprises:

a presentation unit, the presentation unit being configured to store identification information;

an interface configured to communicate with a server; and

an acquisition unit configured to acquire the identification information from the presentation unit, and

the processor is configured to:

acquire the use history corresponding to the identification information from the server through the interface, and

transmit a request to the server to store information indicating that the discharging portion has discharged the liquid as the use history through the interface when the processor causes the discharging portion to discharge the liquid.