Image forming apparatus capable of forming test images on different sides of recording materials
AssigneeCanon Kabushiki Kaisha
InventorTakenori Sueoka
Life of this patent
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Abstract
An image forming apparatus includes an image bearing member, a transfer device, a voltage applying portion, a fixing device, and a controller. During execution of an operation in an output mode, the controller is capable of selectively executing: an operation in which test images formed on a first side of a first recording material are fixed and then the first recording material is outputted without forming the test images on a second side of the first recording material and then in which a second recording material is passed through the fixing device without forming the test images on a first side of the second recording material and then the test images are transferred onto a second side of the second recording material.
Claims11
An image forming apparatus comprising:
- an image bearing member configured to bear a toner image;
- a transfer device configured to transfer the toner image from the image bearing member onto a recording material in a transfer portion;
- a voltage applying portion configured to apply a transfer voltage to the transfer device;
- a fixing device configured to fix the toner image, transferred on the recording material, on the recording material in a fixing portion;
- and
- a controller capable of executing an operation in a double-side mode in which toner images are formed on both sides of the recording material and capable of executing an operation in an output mode in which a chart formed by transferring, onto the recording material, a plurality of test images including first test images and second test images, which are for adjusting the transfer voltage applied during the operation in the double-side mode and which are formed under application of different transfer voltages, is outputted,
- wherein during execution of the operation in the output mode, the controller is capable of selectively executing:
- a first operation in which an image forming operation is controlled so that the first test images formed on a first side of the recording material are fixed on the first side of the recording material by the fixing device and then the second test images are transferred onto a second side of the recording material, and
- a second operation in which the first test images formed on a first side of a first recording material are fixed by the fixing device and then the first recording material is outputted without forming the plurality of test images on a second side of the first recording material and then in which a second recording material is passed through the fixing device without forming the plurality of test images on a first side of the second recording material and then the second test images are transferred onto a second side of the second recording material.
An image forming apparatus comprising:
- an image bearing member configured to bear a toner image;
- a transfer device configured to transfer the toner image from the image bearing member onto a recording material in a transfer portion;
- a voltage applying portion configured to apply a transfer voltage to the transfer device;
- a fixing device configured to fix the toner image, transferred on the recording material, on the recording material in a fixing portion;
- and
- a controller capable of executing an operation in a double-side mode in which toner images are formed on both sides of the recording material and capable of executing an operation in an output mode in which a chart formed by transferring, onto the recording material, a plurality of test images including first test images and second test images, which are for adjusting the transfer voltage applied during the operation in the double-side mode and which are formed under application of different transfer voltages, is outputted,
- wherein during execution of the operation in the output mode, the controller controls an image forming operation so that the first test images formed on a first side of a first recording material are fixed by the fixing device and then the first recording material is outputted without forming the test images on a second side of the first recording material and then so that a second recording material is passed through the fixing device without forming the test images on a first side of the second recording material and then the second test images are transferred onto a second side of the second recording material.
Dependencies are inferred from the claim text.