Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsYUICHIRO TOYOHARA, Haruhiko Omata
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Abstract
In an image forming apparatus, an image forming condition is changed depending on whether or not a recording material on which a toner image is formed is ordinary high gloss paper or thermoplastic resin coated paper. More specifically, in the case where a high gloss mode is selected during image formation, judgement whether or not the high gloss paper is the ordinary high gloss paper or the thermoplastic resin coated paper is made. In the former case, a screen line number is set to 150 lpi, and in the latter case, the screen line number is set to 200 lpi. As a result, image failure due to collapse of a toner layer (during fixation) on the ordinary high gloss paper is prevented and high-quality toner image is formed on the thermoplastic resin coated paper.
Claims7
1-15. (canceled)
An image forming apparatus, comprising:
- an image formation device configured and positioned to form a toner image on a recording material;
- a first image heating device configured and positioned to heat the toner image on the recording material;
- and
- a second image heating device, disposed at downstream side of said first image heating device in a conveying direction of the recording material, configured to heat the toner image on the recording material heated by said first image heating device;
- a selecting device configured and positioned to select one of modes including a first mode for performing image heating process only by said first image heating device and a second mode for performing image heating process by said first image heating device and said second image heating device;
- and
- a changing device configured and positioned to change an image forming condition of said image formation device depending on the mode selected by said selecting device.
Dependencies are inferred from the claim text.