Powder-projecting type recording apparatus with transfer medium
OwnerEini Shiozakiinventor
Life of this patent
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Abstract
Toners 17 supplied from a feed roller 2 of a printing unit 1 and projected through electric field control by a printing control electrodes 20 are accelerated by a voltage applied to a transfer belt 7 from an acceleration voltage source 9. The toners 17 deposited onto the transfer belt 7 by the printing unit 1 moving in the direction vertical to the paper surface are transferred onto recording paper 13 by a fixing device 16 and fixed on the recording paper 13 by heating. Since a toner image is formed on the transfer belt 7, a stable image is formed and it is not easily influenced by the thickness of the recording paper 13 or environment. A plurality of developing agent units 101, 102, 103, and 104 different color toners are used for color printing.
Claims18
A powder-projecting type recording apparatus comprising:
- a printing unit provided with a developing agent carrier for holding powdered developing agents and a printing control electrode for projecting the developing agents through holes formed in the printing control electrode to create developing agent projectiles;
- an endless seamless belt-like movable transfer medium having a uniform thickness for accelerating the developing agent projectiles projected from the printing unit to form an image by the developing agents on a surface of the transfer medium;
- and
- transfer means set at a downstream side of the printing unit for transferring the image formed on the surface of the transfer medium with the developing agents onto a recording member.
A printing method, comprising the steps of:
- (a) projecting developing agents through holes formed in a printing control electrode to create developing agent projectiles;
- (b) forming an image on a surface of a transfer medium as a result of the developing agent projectiles impinging the surface of the transfer medium;
- and
- (c) transferring the image formed on the surface of the transfer medium onto a recording member.
Dependencies are inferred from the claim text.