Siemens Aktiengesellschaft

Eastman-kodak Company

Mannesmann Aktiengesellschaft

Harald Schulz

Hilarion Braun

Friedrich-Wilhelm Drees

Karl H Dreinhoff

Hatto Grosse

Wolfgang Schullerus

Process of printing with serial printhead

Printing module for an ink-printing system having an ink storage

Apparatus for the transportation of record sheets in an ink-jet printer

A printer includes a sheet storage cassette and a sheet separation device for storing and separating individual sheets prior to printing, as well as a sheet deposit device for receiving of the printed-on individual sheets. A sheet storage cassette (2) is formed of two cassette sections (5 and 6), which can be pivoted relative to each other in order to achieve a compact construction of the printer in view of the space requirements of the sheet storage cassette. The first cassette section (5) is fixedly disposed opposite to the sheet separation device (11). The second cassette section (6) is formed as a flap cover (2), pivotally supported at the printer. The flap cover (2) forms the upper side of the printer in the closed state. The flap cover (2) is aligned with the first cassette section (5) in a flipped open state under formation of a sheet storage cassette (4).

Printer with sheet storage cassette

A method for fashioning ink channels in a write head for a dot-matrix ink printer means, whereby form needles respectively coated by parting agent and cylindrically surrounded by piezo electric drive elements are aligned in a casting mold in accord with the desired course of the ink channels to be fashioned, are cast out with a casting compound and, after the curing of the latter, are removed upon formation of the respective ink channels partially surrounded by the allocated piezo electric drive elements, and isolation of the drive elements from a writing fluid in the ink channels is achieved in a way that is simple in terms of production engineering. An envelope coat is applied to the form needles coated with parting agent, being applied thereto before they are introduced into the casting mold, this envelope layer forming the inside channel wall of the appertaining ink channel after the removal of the form needles and of the parting agent. The new method serves the purpose of manufacturing ink printer heads that work based on the principle of individual drop ejection (drop on demand).

Method for fashioning ink channels in a write head for a dot-matrix ink

Growing community of inventors

Berlin, Germany

Harald Schulz