Title:
ダクターローラを備える印刷機、補正装置、及び印刷機の補正方法
Document Type and Number:
Japanese Patent JP6537735
Kind Code:
B2
Abstract:
Individual graph data gr and its initial values gri, and average g of the graph data over the entire ductor roller and its initial value gi are used to change graph data gr and g during printing so as to cancel errors between measured printed densities and desired printed densities. The stable value ge of the averaged graph data g and the stable values gre of individual graph data gr are used and data including their initial values gi, gri and their stable values ge, gre are collected. In the collected data, the difference between the distributions of the stable values ge and the initial values gi makes a basic parameter B up and down. The collected data are classified according to printing speeds, and the difference between the distributions of the stable values ge and the initial values gi in each speed region makes a speed parameter V for each speed region up and down. The collected data are classified according to averaged graph data g, and the difference between the distributions of the stable values ge and the initial values gi in each region of g makes an area parameter F for each region of g up and down. The difference between the distributions of the stable values gre and the initial values gri both of the individual graph data makes a corresponding individual roller parameter R up and down. The duty ratio of the ductor roller is adjusted according to the values of the parameters.
Inventors:
Kenjiro Yamazaki
Application Number:
JP2018531765A
Publication Date:
July 03, 2019
Filing Date:
June 15, 2017
Export Citation:
Assignee:
Imer Planning Co., Ltd.
International Classes:
B41F33/00; B41F31/02; B41F31/14
Domestic Patent References:
| JP2015063071A | ||||
| JP2000108308A | ||||
| JP10128956A | ||||
| JP8318617A |
Foreign References:
| US5835626 |
Attorney, Agent or Firm:
Akira Shioiri
Mika with salt
Mika with salt