Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorYukio Nagaya
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Abstract
An image forming apparatus includes an image forming portion, a detecting portion capable of detecting a light transmittance of the sheet before image formation; and a controller configured to set an initial value of the light transmittance of the sheet before the image formation detected by the detecting portion. When a change amount, from the initial value, of a light transmittance detected after setting of the initial value satisfies a predetermined condition, the controller is capable of executing an operation in a condition changing mode for changing an image forming condition of said image forming portion.
Claims8
An image forming apparatus comprising:
- an image forming portion configured to form an image on a sheet;
- a detecting portion capable of detecting a light transmittance of the sheet before image formation;
- and
- a controller configured to set an initial value of the light transmittance of the sheet before the image formation detected by said detecting portion, wherein when a change amount, from the initial value, of a light transmittance detected after setting of the initial value satisfies a predetermined condition, said controller is capable of executing an operation in a condition changing mode for changing an image forming condition of said image forming portion.
An image forming apparatus comprising:
- an image forming portion configured to form an image on a sheet;
- a detecting portion capable of detecting a light transmittance of the sheet before image formation;
- and
- a controller configured to change an image forming condition of said image forming portion when a light transmittance of the sheet changes from a first value to a second value different from the first value by a predetermined amount or more.
An image forming apparatus comprising:
- an image forming portion configured to form an image on a sheet;
- a detecting portion capable of detecting a light transmittance of the sheet before image formation;
- an environment detecting portion capable of detecting a temperature and a humidity;
- and
- a controller configured to control an image forming condition of said image forming portion so that
- in a case that the temperature and the humidity which are detected by said environment detecting portion are within a first range, said controller changes the image forming condition when the light transmittance of the sheet changes from a first value to a second value different from the first value by a predetermined amount or more, and
- in a case that the temperature and the humidity which are detected by said environment detecting portion are within a second range, said controller does not change the image forming condition.
Dependencies are inferred from the claim text.