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    Method of preparing poly-silicic-ferric coagulant (PSFC) for electrostatic charge image developing toner
    93.
    发明授权
    Method of preparing poly-silicic-ferric coagulant (PSFC) for electrostatic charge image developing toner 有权

    公开(公告)号：US09921508B2

    公开(公告)日：2018-03-20

    申请号：US15085416

    申请日：2016-03-30

    Applicant: S-PRINTING SOLUTION CO., LTD.

    Inventor： Sung-hwa Lee ,  Il-hyuk Kim ,  Yeong-sik Mun

    IPC: G03G9/08 ,  G03G9/097 ,  G03G9/093

    CPC classification number: G03G9/09708 ,  G03G9/0804 ,  G03G9/09328 ,  G03G9/09371 ,  G03G9/09392

    Abstract: Provided is a method of preparing a poly-silicic-ferric coagulant (PSFC) having a controlled aggregating strength. In particular, according to an embodiment, provided is a method of preparing a PSFC that may effectively suppress both formation of fine toner particles having a particle size that is smaller than a desired particle size and formation of coarse toner particles having a particle size that is greater than the desired particle size, wherein the PSFC for a toner is used in preparation of a toner by using an emulsion aggregation (EA) method. The PSFC for a toner prepared by using the method, according to an embodiment, significantly exhibits a controlled aggregating strength, and thus a viscosity of an emulsion aggregation solution for the toner preparation is appropriate, which results in suppressing production of fine toner particles and coarse toner particles. In this regard, a toner preparation yield may improve.

    CARTRIDGE SUPPORT MEMBER AND IMAGE FORMING APPARATUS HAVING THE SAME
    95.
    发明申请
    CARTRIDGE SUPPORT MEMBER AND IMAGE FORMING APPARATUS HAVING THE SAME 有权

    公开(公告)号：US20180052423A1

    公开(公告)日：2018-02-22

    申请号：US15648926

    申请日：2017-07-13

    Applicant: S-PRINTING SOLUTION CO., LTD.

    Inventor： Ho-hyun HWANG

    IPC: G03G15/00

    CPC classification number: G03G21/1867 ,  G03G21/1633 ,  G03G21/1853 ,  G03G21/1871 ,  G03G2221/1684 ,  G03G2221/1869

    Abstract: An image forming apparatus includes a main body, a cartridge support member configured to have a process cartridge provided with first electrical contact points attachable thereto, and a holder configured to have second electrical contact points which are electrically contactable to the first electrical contact points. When the cartridge support member is moved from a first position to a second position in the main body, the second electrical contact points are electrically connected to the first electrical contact points while the cartridge support member is at the first position, while the cartridge support member moves between the first position and the second position, and while the cartridge support member is at the second position. The holder electrically disconnects the second electrical contact points from the first electrical contact points when the cartridge support member is moved to a third position outside the main body.

    Image forming apparatus and control method for the same
    97.
    发明授权
    Image forming apparatus and control method for the same 有权

    公开(公告)号：US09897951B2

    公开(公告)日：2018-02-20

    申请号：US14960762

    申请日：2015-12-07

    Applicant: S-PRINTING SOLUTION CO., LTD.

    Inventor： Jeong Yong Ju

    IPC: G03G15/00 ,  G03G15/20

    CPC classification number: G03G15/2028 ,  G03G15/657 ,  G03G2215/00675

    Abstract: An image forming apparatus and a control method are provided. The image forming apparatus includes fusing rollers that fuse a developer at a printing medium, and a transporting guide that guides the printing medium being transported toward the fusing rollers. The transporting guide is movably installed to move between a first position to guide the printing medium, and a second position spaced apart from the first position. Thus, a friction between the transporting guide and the printing medium as well as the subsequent generation of static electricity may be reduced.

    Image forming apparatus, system-on-chip (SoC) unit, and driving method thereof
    99.
    发明授权
    Image forming apparatus, system-on-chip (SoC) unit, and driving method thereof 有权

    公开(公告)号：US09891687B2

    公开(公告)日：2018-02-13

    申请号：US14716207

    申请日：2015-05-19

    Applicant: S-PRINTING SOLUTION CO., LTD.

    Inventor： Ho-beom Park

    IPC: G06F1/32 ,  G06F3/12 ,  G06F9/44

    CPC classification number: G06F1/3203 ,  G06F1/3284 ,  G06F1/3287 ,  G06F3/1221 ,  G06F3/1229 ,  G06F9/4401 ,  Y02D10/159 ,  Y02D10/1592 ,  Y02D10/171 ,  Y02D50/20

    Abstract: An image forming apparatus is connected to a host device including first and second power domains which are separately supplied with power and includes first and second memories to be disposed in the second power domain, a main controller disposed in the first power domain and to perform a control operation using the first memory in a normal mode, and a sub-controller disposed in the second power domain and perform a control operation using the second memory in a power-saving mode, where when the normal mode is changed to the power-saving mode a power supply to the first power domain is shut off, the first memory operates in a self-refresh mode, and the main controller copies central processing unit (CPU) context information into a context storage unit, and when the power-saving mode is changed to the normal mode, the main controller is booted using the CPU context information stored in the context storage unit.

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