Image forming apparatus and image forming method
A technology of image and ambient temperature, which is applied to the electrical recording process using the charge pattern, equipment and instruments for the electric recording process using the charge pattern, and can solve the problems of reducing power consumption and high cost of the annular zone
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no. 1 example
[0051] In the first example (Example No. 1), the ambient temperature measured by the first temperature measuring sensor 309a is 80°C. The ambient temperature is less than the threshold. Therefore, the threshold temperature determination unit 313 adds the second Δ temperature to the surface temperature of the endless belt 304 measured by the thermopile sensor 308 . The threshold temperature determination unit 313 determines the contact threshold to be 190°C. The surface temperature of the end portion of the endless belt 304 measured by the belt temperature sensor 391a was 185°C. Since the surface temperature is lower than the contact threshold, the heat conduction member control unit 314 determines that the contact of the tubular heat conduction member 305 is invalid.
[0052] In the first embodiment, the ambient temperature measured by the second temperature measuring sensor 309b is 80°C. The ambient temperature is less than the threshold. Therefore, the threshold temperat...
no. 2 example
[0055] In the second example (Example No. 2), the ambient temperature measured by the first temperature measuring sensor 309a is 80°C. The ambient temperature is less than the threshold. Therefore, the threshold temperature determination unit 313 adds the second Δ temperature to the surface temperature of the endless belt 304 measured by the thermopile sensor 308 . The threshold temperature determination unit 313 determines the contact threshold to be 190°C. The surface temperature of the end portion of the endless belt 304 measured by the belt temperature sensor 391a was 195°C. Since the surface temperature is equal to or greater than the contact threshold value, the heat transfer member control unit 314 determines that the contact of the tubular heat transfer member 305 is performed.
[0056] In the first embodiment, the ambient temperature measured by the second temperature measuring sensor 309b is 80°C. The ambient temperature is less than the threshold. Therefore, the...
no. 3 example
[0059] In the third example (Example No. 3), the ambient temperature measured by the first temperature measuring sensor 309a is 110°C. The ambient temperature is above the threshold. Therefore, the threshold temperature determination unit 313 adds the first Δ temperature to the surface temperature of the endless belt 304 measured by the thermopile sensor 308 . The threshold temperature determination unit 313 determines the contact threshold to be 175°C. The surface temperature of the end portion of the endless belt 304 measured by the belt temperature sensor 391a was 185°C. Since the surface temperature is equal to or greater than the contact threshold value, the heat transfer member control unit 314 determines that the contact of the tubular heat transfer member 305 is performed.
[0060]In the first example, the ambient temperature measured by the second temperature measuring sensor 309b is 110°C. The ambient temperature is above the threshold. Therefore, the threshold t...
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