| 摘要 |
In an image forming apparatus in which an maximum image width for image forming is smaller than the sum of a maximum recording material width of a usable recording material and length of two pattern images for a density correction and a registration deviation correction in a recording material width direction, an area for forming the pattern image is changed between the case where the recording width of a practically usable recording material is not more than a threshold value and the case where the recording width exceeds the threshold value. When the recording width is not more than the threshold value, the pattern image is formed on a non-sheet passing section image area, and when the recording width exceeds the threshold value, the pattern image is formed on a sheet interval between the trailing edge of a proceeding recording material and the leading edge of a subsequent material.
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