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:
Feb. 14, 2012
Filed:
Feb. 18, 2009
Syuichi Katogi, Toyokawa, JP;
Shoichi Yoshikawa, Okazaki, JP;
Fuminori Moro, Toyokawa, JP;
Takayuki Ito, Nagoya, JP;
Masashi Kawai, Toyohashi, KR;
Noboru Oomoto, Toyokawa, JP;
Syuichi Katogi, Toyokawa, JP;
Shoichi Yoshikawa, Okazaki, JP;
Fuminori Moro, Toyokawa, JP;
Takayuki Ito, Nagoya, JP;
Masashi Kawai, Toyohashi, KR;
Noboru Oomoto, Toyokawa, JP;
Konica Minolta Business Technologies, Inc., Chiyoda-Ku, Tokyo, JP;
Abstract
In a beltless tandem-type image forming apparatus, a plurality of pairs of transfer rollers are placed side by side at intervals along a conveying direction of sheets. A control section independently conveys sheets in sequence through nip sections of respective pairs of transfer rollers driven by a driving section while sequentially transferring images formed by an imaging section onto the sheets. Conveying speeds of the respective pairs of transfer rollers controlled by the driving section are gradually decreased for every pair of transfer rollers from an upstream side toward a downstream side along a conveying direction of the sheets, and consequently, a driving period for driving the respective pairs of transfer rollers to convey each sheet is gradually increased for every pair of transfer rollers from the upstream side toward the downstream side along the conveying direction of the sheets.