EP 3909779 B1 20230927 - IMAGE FORMING APPARATUS AND CONVEYANCE CONTROL METHOD
Title (en)
IMAGE FORMING APPARATUS AND CONVEYANCE CONTROL METHOD
Title (de)
BILDERZEUGUNGSVORRICHTUNG UND TRANSPORTSTEUERUNGSVERFAHREN
Title (fr)
APPAREIL DE FORMATION D'IMAGES ET SON PROCÉDÉ DE COMMANDE DE TRANSFERT
Publication
Application
Priority
- JP 2020085249 A 20200514
- JP 2021076670 A 20210428
Abstract (en)
[origin: EP3909779A1] An image forming apparatus (110) includes a conveying mechanism (230), a printing unit (210), an origin detection unit (ENC), an image capturing unit (OS), a movement-amount calculation unit (CAL), a correction unit (CAL), and a control unit (110F30). The movement-amount calculation unit calculates movement amounts of a recording medium based on correlations between captured images of the medium, and performs accumulation to calculate a cumulative movement amount. The correction unit performs correction for causing the cumulative movement amount to coincide with a reference movement amount for a predetermined cycle obtained from a mechanical configuration of the conveying mechanism, for each predetermined cycle of the conveying mechanism detected by the origin detection unit. The control unit controls the conveying mechanism, based on a corrected value of the cumulative movement amount, to perform conveyance control, and controls the printing unit to perform printing on the medium conveyed under the conveyance control.
IPC 8 full level
B41J 11/00 (2006.01); B41J 2/21 (2006.01); B41J 11/42 (2006.01); B41J 13/08 (2006.01); B41J 15/04 (2006.01)
CPC (source: EP)
B41J 11/007 (2013.01); B41J 11/008 (2013.01); B41J 11/0095 (2013.01); B41J 11/42 (2013.01); B41J 13/08 (2013.01); B41J 15/046 (2013.01); B41J 15/048 (2013.01); B41J 2/2135 (2013.01); B41J 2202/21 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 21173860 A 20210514