Image recording method and apparatus
AssigneeCanon Kabushiki Kaisha
InventorsHaruo Fujii, Yujiro Ando
Life of this patent
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Abstract
A method and apparatus utilizing a controller having a plurality of openings or slit-like openings to control the passage of charged particles and to record a visible image by the charged particles directly on an image receiving member. The present invention is an improved device for supplying the charged particles to a control electrode and has made high-speed and stable recording possible. The improvement lies in that the charged particles are supported on a supporting member and an alternating electric field is applied between the supporting member and the control electrode. Thus, it has become possible to sufficiently supply the charged particles to the control electrode without scattering them.
Claims9
An image recording method using control means having openings for controlling the passage of charged toner particles therethrough toward an image receiving member, said method comprising:
- forming an electric field in the openings of said control means;
- forming an electric field between said control means and said image receiving member;
- supplying the charged toner particles to said control means while holding and conveying them with a supporting member;
- and
- producing an alternating electric field between said control means and said charged toner particle supporting member to cause said charged toner particles to move to said image receiving member under the influence of the electric field formed in the openings of said control means and the electric field formed between said control means and said image receiving member while causing said toner particles to reciprocally move between said supporting member and said control means, and thereby effecting recording.
An image recording apparatus in which image recording is effected by controlling the passage of charged particles, said apparatus comprising:
- control means formed with openings therein and having an electrode for controlling the passage of the charged particles by forming an electric field in said openings;
- a charged particle supporting member for conveying the charged particles while holding them on the surface thereof to supply the charged particles to said control means;
- means for forming an alternating electric field between said control means and said charged particle supporting member;
- an image receiving member disposed with said control means lying between said image receiving member and said charged particle supporting member;
- and
- means for forming between said control means and said image receiving member an electric field which causes the charged particles to travel toward said image receiving member.
Dependencies are inferred from the claim text.