Back to results
US 4,453,170 AGranted
Image forming apparatus with vibration compensation
AssigneeCanon Kabushiki Kaisha
InventorKozo Arao
Life of this patent
Estimating the term…
Abstract
In an image forming apparatus for recording information by scanning a movable photosensitive member with a light beam, the vibration of determined parts such as optical elements or photosensitive member is detected to activate a vibration forming device acting on said parts, thereby reducing fluctuation in the scanning pitch of the light beam on the photosensitive member in its moving direction.
Claims10
An image forming apparatus, comprising:
- a movable photosensitive member;
- optical means including an optical element, for scaanning said photosensitive member with a light beam in a direction crossing the moving direction of said photosensitive member, to form an image corresponding to information to be recorded;
- detecting means for detecting vibration of said optical element of said optical means and for generating an output signal indicative thereof;
- vibrating force generating means for generating a mechanical vibrating force which is applied to said optical element;
- and
- control means for controlling said vibrating force generating means in response to the output signal from said detecting means in order to reduce fluctuation, in the moving direction of said photosensitive member, of the position of said light beam on said photosensitive member.
3 more elements
An image forming apparatus, comprising:
- a movable photosensitive member;
- optical means for scanning said photosensitive member with a light beam in a direction crossing the moving direction of said photosensitive member, to form an image corresponding to information to be recorded;
- detecting means for detecting vibration of said photosensitive member and for generating an output signal indicative thereof;
- vibrating force generating means for generating a mechanical vibrating force which is applied to said photosensitive member;
- and
- control means for controlling said vibrating force generating means in response to the output signal from said detecting means in order to reduce fluctuation, in the moving direction of said photosensitive member, of the position of said light beam on said photosensitive member.
3 more elements
Dependencies are inferred from the claim text.