| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image formation method and image formation apparatus capable of forming images on both faces even if either of a first image formation unit or a second image formation unit does not have the required functions. <P>SOLUTION: Detection is conducted to determine whether the first image formation units 80K to 80Y and the second image formation units 81K to 81Y have the required functions or not. If, as a result of this detection, it is determined that one of the image formation units does not have the required functions, the method of forming an image on both faces of the paper is switched to the method for forming an image on the both faces of the paper by using only the image formation unit having the required functions. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
