| 摘要 |
An image forming apparatus can continue an execution of a job without canceling when an error occurs during an image forming operation. The image forming apparatus is capable of performing an optional operation in addition to an image forming operation. An image is formed on a print sheet based on given data according to a plurality of image formation levels including at least a complete output level and a limited output level, all setting items set by a user being reflected at the complete output level and a part of the setting items set by the user being changed or invalidated at the limited output level. Discrimination is made as to whether an error relates to the optional operation and whether the error is avoidable. When an error occurs during an image forming operation performed at the complete output level and the error is discriminates as avoidable by changing the image formation level, the complete output level is changed to the limited output level.
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