公开(公告)号：US20170219975A1

公开(公告)日：2017-08-03

申请号：US15491276

申请日：2017-04-19

Applicant: S-Printing Solution Co., LTD.

Inventor： Chang-keun SEO ,  Jin-boo KIM ,  Youn-jae KIM

IPC: G03G15/00

CPC classification number: G03G15/50 ,  G03G15/0863 ,  G03G15/553 ,  G03G21/1882 ,  G06F1/08 ,  G06F3/0604 ,  G06F3/0629 ,  G06F3/0653 ,  G06F3/0673

Abstract: A customer replacement unit monitor (CRUM) unit that can be mounted in an image forming apparatus includes a decoder which receives first clock signals from the image forming apparatus and converts the first clock signals into second clock signals, a memory which stores data related with a consumable unit, and a controller which manages the memory based on data signals transmitted from the image forming apparatus and the second clock signals. The first clock signals are divided into a data section in which the data signals are transmitted and received and an idle section in which the data signals are not transmitted and received. The first clock signals have a first frequency on the data section while having a second frequency on the idle section, and the second clock signals are clock signals maintaining a high value or a low value on the idle section.

公开(公告)号：US20180107132A1

公开(公告)日：2018-04-19

申请号：US15476053

申请日：2017-03-31

Applicant: S-Printing Solution Co., Ltd.

Inventor： Youn-jae KIM ,  Ki-youn LEE

IPC: B41J2/385

Abstract: An image forming apparatus includes an image former configured to print on a printing paper a plurality of lines that are arranged at predetermined intervals in a main scanning direction and are vertical to the main scanning direction using different photosensitive drums, a scanner configured to scan the printing paper on which the plurality of lines are printed, and at least one processor configured to perform color registration correction using the plurality of scanned image

公开(公告)号：US20170219997A1

公开(公告)日：2017-08-03

申请号：US15485979

申请日：2017-04-12

Applicant: S-PRINTING SOLUTION CO., LTD.

Inventor： Youn-jae KIM

IPC: G03G21/18 ,  G06F1/26 ,  G06F1/08 ,  G03G15/00

CPC classification number: G03G21/1875 ,  G03G15/80 ,  G03G21/1867 ,  G06F1/08 ,  G06F1/26

Abstract: A CRUM unit which is mountable/dismountable on an image forming apparatus is disclosed. The CRUM unit includes a power extracting circuit to, when a clock signal is received from an image forming apparatus, extract power from a high value of the clock signal and store in a capacitive element and a controller to operate using the extracted power, wherein the clock signal has a first pulse width in a data section where a data signal is received and transmitted, and has a second pulse width which is different from the firs pulse width in an pause section where a data signal is not received.