Image forming apparatus where vibrations of the scanner do not affect the write operation

A controlling method for an apparatus capable of performing a first operation in parallel with a second operation, at least one of the first and the second operations causing known vibrations, comprising the steps of:

• (a) discriminating whether or not a request for performing the first operation is received;
• (b) determining whether or not known vibrations caused by either of the first operation and the second operation affect the other operation if the requested first operation is started in accordance with a state of the second operation;
• and
• (c) if the determination result at step (b) is positive, causing the requested first operation to wait to be performed at least until the determination result at step (b) becomes negative.

An image forming apparatus comprising:

• reading means for reading an original image;
• recording means for recording an image;
• and
• control means for controlling a relative timing between a reading operation of the reading means and a recording operation of the recording means,
• wherein said apparatus is capable of performing a reading operation in a first mode in parallel with a recording operation in a second mode, where in the first mode the original image is read by said reading means and in the second mode an image independent of the original image read by said reading means in the first mode is recorded by said recording means,
• wherein said recording means comprises means for supplying a recording medium, means for forming an image on the recording medium and means for discharging the recording medium on which the image is formed, and said recording operation in the second mode includes a paper-supplying operation, an image-forming operation and a paper-discharging operation, and
• wherein said control means controls a relative timing between the reading operation in the first mode and the recording operation in the second mode so that the reading operation in the first mode and at least one of the paper-supplying operation and the paper-discharging operation are to be performed simultaneously, and the reading operation in the first mode and the image-forming operation are prevented from being performed simultaneously.