JPH02223982A - Method and device for storing waste liquid of wet type recording - Google Patents

Abstract

PURPOSE:To improve handling property of waste liquid and to easily maintaining waste liquid tank by adding a gelatinizer to the waste liquid and storing it in the shape of gel. CONSTITUTION:A developer storing tank 9 is filled and developer is classified with the use of a classifying method which classifies the developer into reusable developer and not reusable developer. In the case reusing is impossible the developer is sent as waste liquid to the waste liquid tank 14 and stored. The gelatinizer 22 is added to this waste liquid 25, which is gelled. Namely, the waste liquid 25 useless for developing is embraced into the three dimensional construction of the gelatinizer, loses fluidity and forms gel, and is thus stored in the shape of gel by adding the gelanizer 22. Therefore, the waste liquid is preferable in the handling property without being spilt nor soiled, nor evaporated.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a waste liquid storage method and a waste liquid storage method for waste liquid unnecessary for image formation in wet recording using a developer in which a charged coloring material is dispersed in an organic dispersion medium. Regarding equipment.

[Conventional technology]

The wet developer remaining on the electrostatic latent image carrier without being transferred to the transfer paper is removed from the electrostatic latent image carrier in the cleaning section, collected together with the cleaning solution, and guided to the developer storage section for reuse. Served. However, when new developer is supplied from the developer supply section to the developer storage section before being collected, the developer storage section becomes full and overflows, so that it is stored in a waste solution tank or the like. Further, when used for a long time, the developer in the developer storage section deteriorates and aggregates into sludge, which requires cleaning the developer storage section, which also generates waste liquid. Furthermore, when changing multiple colors at one location in the developing section, the developer before the color change must be removed from the developing section to prevent color mixing, and the removed developer must be stored in a waste tank, etc. was stored in.

[Problem to be solved by the invention]

Conventionally, the waste liquid stored in the waste liquid tank or the like has been stored as a liquid, and when the waste liquid tank is replaced, there has been a problem that it easily spills or gets on the hands, resulting in poor handling properties. Furthermore, there was also a transportation problem in that if the waste liquid tank was turned upside down or tilted, the waste liquid would spill out. Furthermore, there is a possibility that the organic dispersion medium in the waste liquid tank removed from the wet recording device will evaporate during the storage period, and there is also the problem that it must be stored in a place with ventilation.

The purpose of the present invention is to solve such problems, and the purpose is to provide a method and a waste liquid storage device for wet recording that does not spill or become dirty, has good handling properties, and does not evaporate. .

[Means to solve the problem]

The waste liquid storage method of the present invention for wet recording using a developer in which a charged coloring material is dispersed in an organic dispersion medium is characterized by having a step of adding a gelling agent to unnecessary waste liquid and storing it in a gel state. . Furthermore, the waste liquid storage device for wet recording according to the present invention is characterized by having a storage part for storing unnecessary waste liquid and an addition means for adding a gelling agent to the storage part. The present invention is characterized in that an addition means for adding a curing agent is provided.

[Effect]

According to the above method of the present invention, waste liquid unnecessary for development is trapped in the three-dimensional network structure of the gelling agent, loses fluidity, forms a gel, and can be stored. . Further, according to the above-mentioned configuration of the present invention, since there is a means for adding a gelling agent, the waste liquid unnecessary for development can be stored in a gel state, and the gelling agent is added at the same time as the waste liquid flows into the storage section. Since it has an addition means, it is possible to realize a wet recording waste liquid storage device that stores the liquid in a gel state at any time.

〔Example〕

Embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 is a diagram schematically showing a first embodiment of wet recording according to the present invention. The photosensitive drum 1 is a charging charger 2
After being initially charged and selectively optically written by the laser head 3, it is developed by the developer 4 supplied with developer from the developer storage layer 9.

Excess developer is removed by a squeeze roller 5 for development, electrostatically transferred onto a transfer paper 8 by a transfer charger 6, and the transfer paper with the image transferred thereto is sent to a fixing device 16 where it is thermally fixed. The residual developer remaining on the photosensitive drum is forcibly removed from the photosensitive drum surface by a cleaner 7, collected into a developer storage layer 9, and reused. At this time, if the developer storage layer is full or if the developer becomes unreusable after being classified using some means (not shown) for classifying reusable and non-reusable developers, is sent as a waste liquid to the waste liquid tank 14 and stored.The developer storage layer 9 has a developer supply section 1.
5, unused developer is supplied from time to time. The developer used in the present invention is one in which pigment particles are dispersed in an isoparaffinic solvent (for example, kerosene) to form a colloid.

FIG. 2 is a diagram showing details of the waste liquid storage device according to the first embodiment of the present invention. The waste liquid tank 14 is made of a material (for example, polyethylene) that is not attacked by organic dispersion media. A powder gelling agent 22 is contained in the lid 21, and a mesh 24 is provided to prevent the gelling agent from falling off by itself unless there is an impact. A fulcrum member 27 attached to the tip of the tube 13 is swingably attached to the bottle 26 as a fulcrum, and is structured to close the tip of the tube 13 when no waste liquid flows in. As the waste liquid flows into the tube 13, as shown in the figure, the waste liquid causes the fulcrum member 27 to rotate about the bottle 26, so that the end of the fulcrum member touches the mesh 24, giving an impact to the mesh. Since a gelling agent can be added to the waste liquid, it is possible to store the waste liquid in gel form at any time. An amino acid-based gelling agent was used in the present invention.

FIG. 3 is a diagram showing a second embodiment of the wet recording waste liquid storage device of the present invention. A first fulcrum member 30 is attached to the tip of the tube 13 so that it can swing freely about a bottle 31. A gelling agent 22 is contained in the second tube 34, and a second fulcrum agent 33 is attached to the tip thereof so as to be swingable about the pin 32 as a fulcrum. When no external force is applied to either the first or second fulcrum member, the pin is positioned so as to close the tip of the tube. Further, the first fulcrum member is located below the second fulcrum member and is in contact with each other when no waste liquid is flowing into the tube 13. When the waste liquid flows into the tube 13, the waste liquid flows into the first fulcrum member 30 as shown in the figure.
The second fulcrum member 33 is rotated using the bottle 31 as a fulcrum, and the second fulcrum member 33 is also rotated using the bottle 32 as a fulcrum.
The gelling agent 22 contained in the tube 34 is added in synchronization with the inflow of waste liquid, and the waste liquid can be stored in gel form at any time.

FIG. 4 is a diagram showing a third embodiment of the wet recording waste liquid storage device of the present invention. A tabletted gelling agent is contained in the plastic container 40 up to the top of the waste liquid tank, and only the part immersed in the waste liquid through the seepage hole 41 is mixed.

The waste liquid mixed with the gelling agent can be stored in the form of a gel at any time. The part not immersed in waste liquid remains a tablet.

In the first to third embodiments of the present invention described above, when vibration is applied to the waste liquid tank by some external force (for example, ultrasonic waves, etc.), the gelling agent is evenly mixed into the waste liquid and stored as an even gel. can.

The waste liquid storage method and waste liquid storage apparatus for wet recording according to the present invention can be applied not only to the development of one color as described in the first embodiment, but also to the case of developing multiple colors using one developing device.

Furthermore, the present invention is not limited to a recording method using a photosensitive drum, and may be applied to any recording method that uses electrostatic recording paper or a dielectric drum and develops with a liquid developer.

〔Effect of the invention〕

As described above, according to the waste liquid storage method of the present invention, the waste liquid can be stored in the form of a gel because it includes the step of adding a gelling agent to the waste liquid unnecessary for development. According to the waste liquid storage device of the present invention, since the means for adding a gelling agent to the waste liquid at the same time as the waste liquid flows into the waste liquid tank is provided, the waste liquid can be stored in gel form at any time, so that when replacing the waste liquid tank, It does not spill or get on your hands, which significantly improves handling, and it does not spill even if it is turned upside down or tilted. Further, the waste liquid does not evaporate during storage, and the waste liquid tank can be easily stored.

[Brief explanation of the drawing]

FIG. 1 is a diagram schematically showing a first embodiment of wet recording according to the present invention. FIG. 2 is a diagram showing details of the waste liquid storage device according to the first embodiment of the present invention. FIG. 3 is a diagram showing a second embodiment of the wet recording waste liquid storage device of the present invention. FIG. 4 is a diagram showing a third embodiment of the wet recording waste liquid storage device of the present invention. 10...Pump 11.12, 13.14...Tube 17...Developing roller 18...Cleaning blade 19...Sponge roller 23...Vent hole 25...Waste liquid Fig. 2

Claims (3)

[Claims] (1) A method for storing waste liquid of wet recording using a developer in which a charged coloring material is dispersed in an organic dispersion medium, which is characterized by having a step of adding a gelling agent to unnecessary waste liquid and storing it in a gel state. Wet recording waste storage method. (2) In a waste liquid storage device for wet recording using a developer in which a charged coloring material is dispersed in an organic dispersion medium, a storage part for storing waste liquid unnecessary for image formation and an addition means for adding a gelling agent to the storage part A wet recording waste liquid storage device comprising: (3) The waste liquid storage device for wet recording according to claim 2, further comprising an addition means for adding a gelling agent at the same time as the waste liquid flows into the storage section.