公开(公告)号：US20200230973A1

公开(公告)日：2020-07-23

申请号：US16838382

申请日：2020-04-02

Applicant: AVISION INC.

Inventor： Shao-Lan SHENG ,  Yen-Cheng CHEN

IPC: B41J2/21 ,  H04N1/00 ,  H04N1/193

Abstract: A color printer includes image forming assemblies, a contact image sensor (CIS) and a processor. The image forming assemblies generate image forming substances, which have different colors and are transfer-printed onto a belt assembly. The CIS detects the image forming substances on the belt assembly passing by the CIS to obtain a detected result. The processor electrically connected to the CIS receives the detected result and determines whether an arrangement of the image forming substances with a same color satisfies a predetermined angle of the CIS according to the detected result.

公开(公告)号：US20180207948A1

公开(公告)日：2018-07-26

申请号：US15867422

申请日：2018-01-10

Applicant: AVISION INC.

Inventor： Shao-Lan SHENG ,  Yen-Cheng CHEN ,  Xiang Chi LEE

IPC: B41J2/21 ,  H04N1/00 ,  H04N1/193

CPC classification number: B41J2/2132 ,  B41J2/2103 ,  B41J2/2135 ,  B41J2/2146 ,  H04N1/00037 ,  H04N1/00087 ,  H04N1/1931

Abstract: A printing precision calibrating structure includes image forming assemblies, a transmission path and a linear image sensor. The image forming assemblies arranged in order generate image forming substances. The transmission path allows the image forming substances to pass. The linear image sensor is disposed downstream of the image forming assemblies. The image forming assemblies generate the image forming substances transmitted within the transmission path. The linear image sensor detects the image forming substances, provided by the image forming assemblies, for printing precision calibrating. A printing precision calibrating method is also provided.

公开(公告)号：US20170336226A1

公开(公告)日：2017-11-23

申请号：US15482319

申请日：2017-04-07

Applicant: AVISION INC.

Inventor： Yen-Cheng CHEN ,  JAN-HSING KAO

IPC: G01D5/347

CPC classification number: G01D5/3473 ,  G01D5/34707

Abstract: A rotary encoder includes a rotating shaft, first and second encoder wheels, first and second detectors and a processor. The first encoder wheel includes coaxially disposed first and second portions. The first portion has first graduation features. The second portion has a first positioning structure. The second encoder wheel includes coaxially disposed third and fourth portions. The third portion has second graduation features. The fourth portion has a second positioning structure meshing with the first positioning structure, so that the first graduation features and the second graduation features are staggered, and the first encoder wheel and the second encoder wheel are coaxially mounted on the rotating shaft. The first and second detectors detect the first and second graduation features and output first and second signals, respectively. The processor calculates a rotating angle of the rotating shaft according to the first and second signals.