| 摘要 |
PROBLEM TO BE SOLVED: To prevent degradation of a print image due to vibration of a sheet conveyance roller in the axial direction while reducing the cost of an image forming apparatus. SOLUTION: Sheet end position is detected every time when a unit amount of sheets is conveyed and, based on the detection results, a rotating position where deviation of causing print image degradation occurs in sheet position is judged in synchronism with rotation of a sheet conveyance roller. When the sheet conveyance roller reaches the rotating position (S22) during print operation, print data is shifted to correct the deviation (S23). COPYRIGHT: (C)2007,JPO&INPIT
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