| 摘要 |
An inkjet image forming device records a test pattern 901 composed of plural lines running along the nozzle array, at least one end positions of the lines being shifted in increments of one unit amount, using a first line recording head 202. After that, the same test pattern as the test pattern described above is sequentially recorded using the second and the subsequent line recording heads, 203-205. The lines of each recorded test pattern are detected by an optical sensor 210 provided downstream of the plural line recording heads. Based on the detection results of the lines of the test patterns recorded by the line recording heads, the amounts of nozzle array direction registration errors between the line recording head, which is one of the plural line recording heads and is used as the base, and other line recording heads are detected. Based on the amounts of errors, the registration of the line recording heads is corrected. This configuration adjusts the registration among the line recording heads relatively accurately and speedily in a relatively low-cost system configuration.
|
