JP2014068242A5 - - Google Patents

Claims (7)

An image reading device that irradiates a document with light from a light source, photoelectrically converts reflected light from the document, and reads an image of the document,
Having an intermittent reading mode for temporarily interrupting a reading operation of reading the image of the original;
When shifting to the intermittent reading mode under specific conditions during the reading operation, the signal to the drive system for moving the document, the signal to the reading system for reading an image by the photoelectric conversion, and the light source Stop means for stopping the supply of the signal to be lit,
When returning from the intermittent reading mode, a signal is supplied to the reading system a predetermined number of times, and when the photoelectric conversion is in a normal operation state, a signal for turning on the light source and a signal to the drive system are supplied to Resuming means for resuming the reading operation;
An image reading apparatus comprising: A power control means for controlling power supply to the reading system and the light source;
The power control means stops supplying power to the reading system and the light source when shifting to the intermittent reading mode, and supplies power to the reading system and the light source when returning from the intermittent reading mode. The image reading apparatus according to claim 1, wherein the image reading apparatus restarts. It further has monitoring means for monitoring the analog signal converted by the photoelectric conversion,
The image reading apparatus according to claim 1, wherein the monitoring unit notifies that the photoelectric conversion is in a normal operation state when the analog signal is equal to or lower than a predetermined value. A storage element that performs charging / discharging with power from an external power source and supplies power to the reading system and the light source;
Control means for controlling the power storage element to charge power when the intermittent reading mode is entered;
The image reading apparatus according to claim 1, further comprising:   The reading system converts an analog signal converted by the photoelectric conversion into digital data, and the restarting unit determines that the photoelectric conversion is in a normal operation state based on the digital data. Item 3. The image reading apparatus according to Item 1 or 2. A method for controlling an image reading apparatus that irradiates a document with light from a light source, photoelectrically converts reflected light from the document, and reads an image of the document.
Having an intermittent reading mode for temporarily interrupting a reading operation of reading the image of the original;
When the stopping unit is performing the reading operation and the mode is shifted to the intermittent reading mode due to a specific condition, a signal to the driving system for moving the document and a signal to the reading system for reading an image by the photoelectric conversion And a stopping step of stopping supply of a signal for turning on the light source,
When the restarting unit returns from the intermittent reading mode, it supplies a signal to the reading system a predetermined number of times, and when the photoelectric conversion is in a normal operation state, a signal for turning on the light source and a signal to the driving system are supplied. Supplying and restarting the reading operation;
An image reading apparatus control method comprising: A program for causing a computer to function as each unit of the image reading apparatus according to any one of claims 1 to 5 .