Hitachi Koki Co., Ltd.

Ricoh Printing Systems, Ltd.

Kazuyuki Mitome

Kazuyoshi Tokunaga

Seiji Kageyama

Tatsuro Akabane

Katsumi Kumagai

Tomoko Kitaura

Masamitsu Suzuki

Invisible information are recorded in the form of pixels invisible to the naked eye and at a print density invisible to the naked eye.

Method and image forming apparatus, and printing system for recording invisible information recording

A printing method for use with a print system including a computer and a printer connected to the computer directly or by way of a network, the method including the steps of: directing the printer to effect printing and storage of a document prepared by the computer in an arbitrary combination of formats; transmitting the document to the printer; effecting receipt by the printer of the document transmitted from the computer; and effecting printing and storage of the document according to the instruction from the computer.

Document processing method

Document printing method

A printing apparatus, which includes document data management unit 3 for receiving from a computer document data 5 to be printed and for storing and managing the document data 5, printing unit 1 for printing, on a predetermined sheet of paper, the document data 5 that is output by the document data management unit 3, and document sorting unit 2 for sorting and discharging, onto a sorting tray 22, the sheet of paper that is printed by the printing unit 1, includes: arrangement and editing unit 4 for each destination, for receiving and storing page data for each destination, for employing the page data to calculate a printing number required for each page of a document and for employing the sorting tray 22 for each destination, whereby a printed sheet of a necessary page is discharged onto the sorting tray 22.

Printing apparatus for reproducing copy sets containing variable pages

Growing community of inventors

Ibaraki, Japan

Kazuyuki Mitome