JP2009168734A5 - - Google Patents

Claims (13)

A plurality of liquid discharge suction means for discharging the liquid into the container and sucking the liquid held in the container;
A plurality of shielding means for shielding the interior of the container corresponding to the liquid ejection and suction means and the liquid ejection and suction means from the interior of the other liquid ejection and suction means and the other containers;
A pressure generating means that communicates with the shielding means and applies pressure to the shielding means;
An absorbing member that is disposed inside the shielding means and captures the foreign matter and the liquid;
The liquid discharge suction means and the shielding means are configured to be movable with respect to the container, and the liquid discharge suction means are configured to be relatively movable with respect to the shielding means,
A control unit for controlling the discharge operation and suction operation of the liquid discharge suction unit, the movement operation of the liquid discharge suction unit and the shielding unit, and the driving of the pressure generation unit;
Wherein the control unit includes a during ejection operation even before Symbol liquid discharge suction means less, the shielding means is moved into contact with the said container, and the pressure generating liquid inspection apparatus for driving means. Provided on the wall surface of the shielding means in communication with the outside, and has a filter that allows air to pass through and traps foreign matter and the liquid
The space formed by the shielding means and the container in a state in which the shielding means is in contact with the container communicates with the outside only through the filter and the pressure generating means. Liquid testing equipment.   The liquid inspection apparatus according to claim 2, wherein the filter is disposed at a position not facing the container corresponding to the adjacent shielding unit. Pressure detecting means for detecting the pressure in the shielding means, and notification means for notifying the replacement time of the filter,
When the control unit determines that the differential pressure between the pressure detected by the pressure detection unit and the atmospheric pressure when the pressure generation unit is driven for a predetermined time is greater than or equal to a predetermined value, the control unit The driving condition of the pressure generating means is repeatedly changed until the differential pressure falls within the predetermined range , and the notification means is notified that the time for replacement of the filter is approaching. Liquid inspection device. When the controller determines that the differential pressure is greater than or equal to a predetermined value, and the differential pressure does not fall within a predetermined range even when the controller repeatedly changes the driving condition of the pressure generating means, The liquid inspection apparatus according to claim 4, wherein the control unit stops driving the pressure generating unit and informs the notification unit that the filter member must be replaced. Pressure detecting means for detecting the pressure in the shielding means, and notification means for notifying the replacement time of the filter,
The control unit compares the time from when the pressure generating unit is driven until the differential pressure between the pressure detected by the pressure detecting unit and the atmospheric pressure becomes a predetermined value or more, and a predetermined time in normal operation. 4. The liquid inspection apparatus according to claim 2, wherein a time difference is calculated, and when the time difference is within a predetermined range, the control unit causes the notification unit to notify that the time for replacement of the filter is approaching. .   As a result of the comparison, when the predetermined time in the normal operation is longer than the time until the predetermined value or more, the control unit stops the driving of the pressure generating means, and informs the notification means to the filter member The liquid inspection apparatus according to claim 6, which informs that it must be replaced.   During the suction operation of the liquid discharge suction means, during the stirring operation of the liquid in the container by repeating the discharge operation and the suction operation of the liquid discharge suction means, and for the liquid in the container The liquid inspection apparatus according to claim 1, wherein the controller drives the pressure generation unit when the liquid discharge / suction unit enters or exits.   9. The liquid inspection apparatus according to claim 1, wherein the control unit drives the pressure generating unit until the shielding unit is moved and brought into contact with the container. A liquid level detecting means for detecting the liquid level of the liquid in the container;
The control unit determines a driving condition of the pressure generating unit based on a detection result by the liquid level detecting unit and an operating condition of the liquid discharge / suction unit, and drives the pressure generating unit based on the driving condition. The liquid inspection apparatus according to any one of claims 1 to 9. Storage means for storing information on the amount of liquid in the container and the arrangement and operating conditions of the liquid ejection and suction means in each step for inspecting the liquid;
The liquid inspection apparatus according to claim 1, wherein the control unit drives the pressure generating unit based on the information stored in the storage unit. A plurality of communication passages connecting the shielding means and the pressure generating means;
The communication path used for applying a positive pressure in the shielding means by the pressure generating means and the communication path used for applying a negative pressure in the shielding means by the pressure generating means are mutually The liquid inspection apparatus according to claim 1, wherein the liquid inspection apparatus is provided independently.   The control unit moves the shielding unit and the liquid discharge / suction unit to a position away from the container with the liquid discharge / suction unit used for the liquid inspection being mounted after the liquid test is completed, and The liquid inspection apparatus according to claim 1, wherein the pressure generating unit is driven so that a negative pressure is applied to the shielding unit at the distant position.