Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorTaisuke Matsuura
Life of this patent
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Abstract
An image forming apparatus includes an image bearing member, an image forming portion, a transfer member, an applying portion, and an executing portion configured to execute an output operation for forming and outputting a chart formed on a recording material on which a plurality of test images are transferred by applying a plurality of voltages to the transfer member by the applying portion. The executing portion changes a change width per level of the test voltage so that the change width is a first change width in a case that a material of the recording material on which the chart is formed is a first material and so that the change width is a second change width different from the first change width in a case that the material of the recording material is a second material different from the first material.
Claims15
-13. (canceled)
An image forming apparatus comprising:
- an image bearing member configured to bear a toner image;
- an image forming portion configured to form the toner image on the image bearing member;
- a transfer member configured to form a transfer portion where the toner image is transferred from the image bearing member onto a recording material;
- an applying portion configured to apply a voltage to the transfer member;
- and
- an executing portion configured to execute an output operation for forming and outputting a chart formed on a recording material on which a plurality of test images are transferred by applying a plurality of test voltages to the transfer member by the applying portion,
- wherein the executing portion executes the output operation based on a kind of the recording material on which the chart is formed so that a difference between a maximum value and a minimum value of the plurality of test voltages differs among different kinds of the recording material.
An image forming apparatus comprising:
- an image bearing member configured to bear a toner image;
- an image forming portion configured to form the toner image on the image bearing member;
- a transfer member configured to form a transfer portion where the toner image is transferred from the image bearing member onto a recording material;
- an applying portion configured to apply a voltage to the transfer member;
- and
- an executing portion configured to execute an output operation for forming and outputting a chart formed on a recording material on which a plurality of test images are transferred by applying a plurality of test voltages to the transfer member by the applying portion,
- wherein the plurality of test voltages include a first test voltage of a first voltage level and a second test voltage of a second voltage level higher than the first voltage level, and
- wherein the executing portion executes the output operation based on a kind of the recording material on which the chart is formed so that a difference between the first voltage level and the second voltage level differs among different kinds of the recording material.
Dependencies are inferred from the claim text.