Back to results
US 5,860,042 AGranted
Image reading method and apparatus with read sensor temperature control
AssigneeFuji Xerox Co., Ltd.
InventorsTakashi Tomaru, Naoki Isozaki
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeFuji Xerox Co., Ltd.
InventorsTakashi Tomaru, Naoki Isozaki
Estimating the term…
A cooling fan is rotated to cool an irradiation lamp and a read sensor during the reading operation and the standby period both. Although an airflow from the cooling fan is maximized during the reading operation, the airflow is reduced to the extent that a temperature rise originating from the self-generation of heat on the part of the read sensor in the standby condition is suppressed. Thus the temperature of the read sensor is kept constant and the characteristics of the read sensor are prevented from fluctuating. The airflow from the cooling fan can also be regulated by controlling the operating voltage to be applied to a motor for rotating the cooling fan and placing movable airflow regulating plates in the passage of the wind blown from the cooling fan. Thereby, accurate reading can be conducted in any color image reading apparatus since it is possible to minimize variation in the temperature of a read sensor for a certain time after the image reading operation is started.
An image reading apparatus comprising:
An image reading apparatus comprising:
An image reading apparatus comprising:
An image reading apparatus comprising:
An image reading apparatus comprising:
An image reading apparatus comprising:
Dependencies are inferred from the claim text.