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US 2020/0050139 A1Published application
Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorSatoru Takezawa
Life of this patent
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Abstract
An image forming apparatus with an image forming unit, including a photosensitive drum and an optical scanning device having a transparent window through which laser light that scans the photosensitive drum passes. The image forming apparatus further includes a cleaning mechanism configured to clean the transparent window and a controller unit configured to control the cleaning mechanism to clean the transparent window, wherein the controller unit controls the image forming unit to form an adjustment pattern on the photosensitive drum after the cleaning mechanism performs a cleaning operation for cleaning the transparent window.
Claims20
An image forming apparatus comprising:
- an image forming unit, including a photosensitive drum and an optical scanning device having a transparent window through which laser light that scans the photosensitive drum passes, configured to develop an electrostatic latent image using toner, the electrostatic latent image being formed on the photosensitive drum by being scanned by the laser light,
- wherein the image forming unit forms an adjustment pattern on the photosensitive drum in response to an execution signal being generated, the execution signal being for giving an instruction to execute an adjustment sequence for adjusting an image formation condition for forming a toner image on a recording sheet;
- a cleaning mechanism configured to clean the transparent window;
- and
- a controller unit configured to control the cleaning mechanism to clean the transparent window,
- wherein in the adjustment sequence executed in response to the execution signal, the controller unit controls the image forming unit to form the adjustment pattern on the photosensitive drum after the cleaning mechanism performs a cleaning operation for cleaning the transparent window.
3 more elements
An image forming apparatus comprising:
- an image forming unit, including a photosensitive drum and an optical scanning device having a transparent window through which laser light that scans the photosensitive drum passes, configured to develop an electrostatic latent image using toner, the electrostatic latent image being formed on the photosensitive drum by being scanned by the laser light,
- wherein the image forming unit forms an adjustment pattern on the photosensitive drum in an adjustment sequence for adjusting an image formation condition for forming a toner image on a recording sheet;
- a cleaning mechanism configured to clean the transparent window;
- and
- a controller unit configured to control the image forming unit and the cleaning mechanism,
- wherein in the adjustment sequence, the controller unit controls the image forming unit to form the adjustment pattern on the photosensitive drum after the cleaning mechanism performs a cleaning operation for cleaning the transparent window.
3 more elements
An image forming apparatus comprising:
- an image forming unit, including a photosensitive drum and an optical scanning device having a transparent window through which laser light that scans the photosensitive drum passes, configured to develop an electrostatic latent image using toner, the electrostatic latent image being formed on the photosensitive drum by being scanned by the laser light,
- wherein the image forming unit forms an adjustment pattern on the photosensitive drum, in execution of an adjustment sequence for adjusting an image formation condition for forming a toner image on a recording sheet;
- a cleaning mechanism configured to clean the transparent window;
- a display unit configured to display a selection screen that allows an operator to select in which modes of a plurality of modes the cleaning of the transparent window is to be executed in the adjustment sequence, the plurality of modes including a cleaning mode for causing the cleaning mechanism to clean the transparent window and a non-cleaning mode for not causing the cleaning mechanism to clean the transparent window;
- and
- a controller unit configured to control the image forming unit and the cleaning mechanism,
- wherein in a case where the cleaning mode is selected on the display unit, the controller unit controls the image forming unit to form an adjustment pattern on the photosensitive drum after the cleaning mechanism performs a cleaning operation for cleaning the transparent window, in the adjustment sequence, and
- wherein in a case where the non-cleaning mode is selected on the display unit, the controller unit controls the image forming unit to form the adjustment pattern on the photosensitive drum without cleaning of the transparent window by the cleaning mechanism, in the adjustment sequence.
5 more elements
Dependencies are inferred from the claim text.