US 6,174,095 B1Granted

Printer for large format printing

AssigneeAgfa-Gevaert

InventorsGuido Desie, Jacques Leonard, Hilbrand Van den Wijngaert, Ludo Joly, Dirk Broddin

Life of this patent

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Abstract

A single pass printer, having a printing width (PW) is provided or printing a toner image on a substrate, the substrate having a width (WS) and a length (LS), wherein, i) a number n, equal to or larger than 2, of printing engines, each containing a toner transferring element with a longitudinal axis (width (WPE)) smaller than the printing width (PW) are present, and at least two of the n printing engines, each containing a toner transferring element with a longitudinal axis in the direction of width (WPE), are located so that the longitudinal axis do not coincide. Preferably the printing engines are electro(stato)graphic engines, especially Direct Electrostatic Printing (DEP) engines or electrophotographic engines.

Claims8

Dependent claims

A single pass printer, having a printing width (PW) for printing a toner image on substrate, having a width (WS) and a length (LS) comprising

a number n, equal to or larger than 2, of direct electrostatic printing engines, each having a longitudinal axis (WPE) smaller than said printing width (PW) for applying toner to said substrate, said number n of said direct electrostatic printing engines being positioned in the single pass printer so that said printing width (PW) is achieved, said respective longitudinal axis of said direct electrostatic printing engines being parallel to each other,
said direct electrostatic printing engines having a center point located on a single line, said single line being essentially parallel to said width (WS) of said substrate, and
each of said direct electrostatic printing engines being inclined with respect to said single line by an angle α, wherein 0°<α<90°.

Dependencies are inferred from the claim text.

Facts

Application: 09/544,066Filed 6 Apr 2000 · division
Priority: EP 9620363619 Dec 1996
Granted: 16 Jan 2001
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B41J 2/4155
By passing charged particles through a hole or a slit: for direct electrostatic printing [DEP]
B41J 3/54
Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed: with two or more sets of type…
G03G 15/346
By selectively transferring the powder to the recording medium, e.g. by using a LED array: by modulating the powder through holes or a slit
G03G 15/6594
Characterised by the copy material, e.g. postcards, large copies, multi-layered materials, coloured sheet material: characterised by the format or…