1. Device for determining the vertical spacing of objects while carrying out positioning tasks with a vertical travel portion, wherein at least a first pressure sensor is arranged on a first object and at least a second pressure sensor is arranged on a second object, the two pressure sensors measure environmental pressures, in particular the air pressure or water pressure, and evaluation means are provided, the objects changing their vertical position relative to one another while the positioning is being carried out and the vertical travel portion between the positions of the objects being determinable by the evaluation means from the difference of the measured pressure values of the first and second pressure sensor, characterized in that at least one additional position sensor is provided, the measuring signal of which is additionally used by the evaluation means to determine the vertical spacing of the objects relative to one another.
2. Device according to claim 1, characterized in that means for temperature measurement are provided at the first andor at the second pressure sensor.
3. Device according to claim 1, characterized in that the first pressure sensor is arranged on a stationary object.
4. Device according to claim 1, characterized in that capacitive silicon pressure sensors are provided.
5. Device according to claim 1, characterized in that at least one binary position sensor, at least one acceleration sensor, at least one incremental encoder andor at least one optical travel measurement sensor are provided as additional sensors.
6. Device according to claim 1, characterized in that the evaluation means allow a self-monitoring to be carried out.
7. Use of a device according to claim 1, in a lift, crane, shelf or handling systems.
8. Method for determining the vertical spacing of objects while carrying out positioning tasks with a vertical travel portion, in particular using a device according to claim 1, wherein a pressure sensor is provided in each case on a first object and on a second object, the two pressure sensors measure environmental pressures, in particular the air pressure or water pressure and the vertical spacing between the two positions is determined by evaluation means by means of a differential pressure measurement and the evaluation means use the measurement signal of at least one additional position sensor to determine the vertical spacing of the objects relative to one another.
9. Method according to claim 8, characterized in that at least one measurement signal of at least one binary position sensor, at least one acceleration sensor, at least one incremental encoder andor one optical travel measurement sensor is additionally used to correct the determination of the spacing.
10. Method according to claim 9, characterized in that the evaluation means, using the additional measurement signal, carry out a self-monitoring of the sensors andor of the total device to determine the vertical spacing of objects.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A development device comprising:
a developer container reserving a liquid developer containing toner particles and a carrier liquid;
a developer supporting member for supporting the liquid developer;
a developer supply member for supplying the developer supporting member with the liquid developer;
an agitating member disposed in the developer container and for supplying the developer supply member with the liquid developer; and
a developer supporting member cleaning member for removing the liquid developer on the developer supporting member,
wherein the developer container includes
a first developer holding section having at least one communication section for making the liquid developer flow in,
a second developer holding section for reserving the liquid developer recovered by the developer supporting member cleaning member, and
a partition member for partitioning between the first developer holding section and the second developer holding section, and wherein
the partition member is a wall shared by the first and second developer holding sections having at least one flowing section disposed at a position shifted from the communication section,
the partition member is aligned in parallel to an axial direction of the rotation of the agitating member and allows the liquid developer to move between the first developer holding section and the second developer holding section, and
the uppermost surface of the partition member extends above the first and second developer holding sections.
2. The development device according to claim 1, wherein the communication section is disposed on a bottom surface of the developer container.
3. The development device according to claim 1, wherein the communication section is disposed on a side surface of the developer container.
4. The development device according to claim 1, wherein the flowing sections are disposed on both sides of the communication section in the axial direction of the agitating member.
5. The development device according to claim 1, wherein
the communication section is disposed on one side in the axial direction of the agitating member, and
the flowing section is disposed on the other side in the axial direction of the agitating member.
6. The development device according to claim 1, wherein two or more of the communication sections are disposed.
7. The development device according to claim 6, wherein the communication sections are disposed on both sides of the flowing section in the axial direction of the agitating member.
8. The development device according to claim 1, wherein the communication section is disposed on an opposite side of the partition member from a plumb line passing through a rotational center of the agitating member.
9. The development device according to claim 1, wherein the agitating member includes
a first rib section for making the liquid developer flow from the communication section side towards the flowing section, and
a second rib section different from the first rib.
10. The development device according to claim 1, wherein a boundary section between the first rib section and the second rib section is disposed at a position corresponding to the flowing section.
11. The development device according to claim 1, wherein one of the first rib section, the second rib section, and both of the first and second rib sections include(s) a semicircular spiral rib.
12. The development device according to claim 1, wherein there is a single agitating member.
13. The development device according to claim 1, wherein
the second developer holding section includes a transportation member, and
the transportation member has double spiral pitches.
14. A development method comprising:
supplying a liquid developer from a communication section to a first developer holding section;
moving the liquid developer in an axial direction of an agitating member in the first developer holding section;
making the liquid developer flow from the first developer holding section to a second developer holding section via a flowing section, wherein the flowing section is provided as an uppermost surface of a partition member that is a wall shared by the first and second developer holding sections, and the uppermost surface of the partition member extends above the first and second developer holding sections; and
reserving the liquid developer recovered by a developer supporting member cleaning member.
15. An image forming device comprising:
a developer supporting member for supporting a liquid developer containing toner particles and a carrier liquid;
an image supporting member for supporting an image developed by the developer supporting member;
a transfer member to which the image on the image supporting member is transferred;
a developer container for reserving the liquid developer;
a developer supply member for supplying the developer supporting member with the liquid developer;
an agitating member disposed in the developer container and for supplying the developer supply member with the liquid developer;
a developer supporting member cleaning member for removing the liquid developer on the developer supporting member; and
a developer recoverysupply device for recovering the liquid developer from the developer container, and supplying the liquid developer and the carrier liquid,
wherein the developer container includes
a first developer holding section to which the liquid developer is supplied from the developer recoverysupply device via a communication section,
a second developer holding section for transporting the liquid developer to the developer recoverysupply device, and
a partition member for partitioning between the first developer holding section and the second developer holding section, and wherein
the partition member is a wall shared by the first and second developer holding sections and has at least one flowing section disposed at a position shifted from the communication section,
the partition member is aligned in parallel to an axial direction of the rotation of the agitating member and allows the liquid developer to move between the first developer holding section and the second developer holding section, and
the uppermost surface of the partition member extends above the first and second developer holding sections.
16. The development device according to claim 1, wherein the partition member includes a notch section.