Title:
光学センサのキャリブレーションを含むプリント位置合わせ方法、プリント装置およびプリントシステム
Document Type and Number:
Japanese Patent JP4377974
Kind Code:
B2
Abstract:
In a complimentary printing by bi-directional scanning of a head (1) or by a plurality of heads, a plurality of patterns in which a print start timing is shifted by a predetermined amount are printed with respect to a reference dot formed by the forward scan of the bi-directional scanning or by one of the plurality heads (S1). In these patterns, an area factor by the dots formed by printing of the patterns is designed to be varied depending upon shifting amount. An average density is read from each of the plurality of patterns, optically (S2). The timing at which the maximum one among average densities read from the patterns is obtained, can be set as the printing registration condition (S3). Further, before the above reading operation, an optical sensor used for this operation is calibrated, for improving accuracies of the reading and the registrating. By these processings, printing registration between a forward and a reverse scan of a print head or printing registration between a plurality of print heads in a printing apparatus can be performed simply and with high accuracy.
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Inventors:
Teshigawara Minoru
Naoji Otsuka
Kiichiro Takahashi
Kazukiyo Nishikiori
Governor Iwasaki
Satoshi Chikuma
Naoji Otsuka
Kiichiro Takahashi
Kazukiyo Nishikiori
Governor Iwasaki
Satoshi Chikuma
Application Number:
JP9212198A
Publication Date:
December 02, 2009
Filing Date:
April 03, 1998
Export Citation:
Assignee:
Canon Inc
International Classes:
B41J2/01; G01B11/00; B41J2/05; B41J2/21; B41J2/51; B41J2/525; B41J19/14; B41J29/393
Domestic Patent References:
| JP10044390A | ||||
| JP7023175A | ||||
| JP7104540A | ||||
| JP9325008A | ||||
| JP10329381A |
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe