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:
Apr. 18, 1978
Filed:
Aug. 17, 1976
Applicant:
Inventors:
Tamaki Kaneko, Tokyo, JA;
Tugio Okuzawa, Tokyo, JA;
Assignee:
Ricoh Company, Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41F / ;
U.S. Cl.
CPC ...
101142 ; 101144 ; 101232 ;
Abstract
A mechanism actuates a sheet feed means after a predetermined length of time after a control lever is moved to a print position, thereby allowing sufficient ink to be transferred to a transfer roller such that the first sheet printed has the same density as subsequent sheets. The mechanism comprises a ratchet and a pawl, the pawl being reciprocatingly driven in synchronism with the transfer roller and advancing the ratchet from a reset position to a position in which it engages with a sheet feed control linkage to activate the sheet feed means in a predetermined number of reciprocations corresponding to the predetermined length of time.