| 摘要 |
An image forming apparatus provided with a hybrid development apparatus having a plurality of toner carriers, the image forming apparatus having the following constitution: a magnet roller incorporated in a developer carrier is rotated and adjusted and fixed at an appropriate magnetic pole position with respect to one toner carrier; the other toner carrier is moved around the magnet roller shaft having a certain gap therebetween and adjusted and fixed at an appropriate magnetic pole position; and gap members are provided on each toner carrier, and the gap members are brought into contact with an image carrier by a guide member and an bias member provided on the image forming apparatus, thereby maintaining a specific development gap.
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