Image processing system

An image processing system comprising:

• an image processing apparatus;
• and
• a control device connected to the image processing apparatus so as to be able to communicate with the image processing apparatus via a network, the control device controlling lightness in a room where the image processing apparatus is installed;
• wherein
• the image processing apparatus includes:
• a contact glass which has a placement surface on which to place a document;
• a document cover which opens and closes with respect to the placement surface;
• an image reading portion including a light source and an image sensor which are arranged opposite from the placement surface side, the image reading portion shining light from the light source toward the contact glass and performing scanning operation to perform photoelectric conversion with the image sensor;
• and
• an image processing control portion which controls the image reading portion,
• the control device controls a device for adjusting the lightness in the room,
• before the image reading portion reads the document, the image processing control portion makes the image reading portion perform pre-scanning operation, which is the scanning operation performed with the document cover open without the document placed on the placement surface, and checks incident condition of external disturbance light on the image sensor based on read data of an image read in the pre-scanning operation;
• and
• if it is judged that the incident condition is a predetermined state, the image processing control portion communicates with the control device, transmits an instruction to perform a countermeasure process to the control device, and
• on receiving the instruction to perform the countermeasure process, the control device performs, as the countermeasure process, a process to make the room dimmer than it currently is by operating the device for adjusting the lightness in the room.