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.

Date of Patent:
Sep. 27, 2016

Filed:

Feb. 20, 2015
Applicants:

Yoshimi Nemoto, Kanagawa, JP;

Takahiro Yoshida, Ibaraki, JP;

Inventors:

Yoshimi Nemoto, Kanagawa, JP;

Takahiro Yoshida, Ibaraki, JP;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/21 (2006.01); B42D 25/30 (2014.01); B41J 19/20 (2006.01);
U.S. Cl.
CPC ...
B42D 25/30 (2014.10); B41J 2/2135 (2013.01); B41J 19/207 (2013.01);
Abstract

An image forming apparatus forms an image on a recording medium by discharging ink droplets onto the recording medium. The image forming apparatus includes a head having a nozzle orifice that discharges ink droplets onto the recording medium, a main-scanning controller that controls the movement of the head in a main-scanning direction, a main-scanning encoder that generates a position signal indicating the position of the head in the main-scanning direction at a certain interval, a timing generating unit that generates a timing signal with a phase shifted from the position signal, a signal output unit that outputs a recording signal of a waveform pattern corresponding to image data at a timing of the timing signal, and a head drive unit that discharges ink droplets from the nozzle orifice in accordance with the recording signal.


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