The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 2021
Filed:
Sep. 02, 2020
Junichi Shimoda, Tokyo, JP;
Junichi Shimoda, Tokyo, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An image forming apparatus includes an image forming device forming an image, a transfer belt having an image bearing surface on which the image moves to first and second regions, a sensor installed at an installation angle to the image bearing surface and including a light emitting element emitting light, a first and second light receiving elements receiving light reflected from the first and second regions, respectively, circuitry to generate first and second information according to light entered the first and second light receiving elements, respectively, generate, when the image moves, time information according to a difference between first and second times at each of which the first and second information, respectively, reach a threshold, obtain a tilt table based on the time difference information, and determine, by the tilt table, tilt information corresponding to the time information and indicating a difference between the installation angle and a reference angle.