Method of setting a print start position in a continuous form printing system

• US 20020131804A1
• Filed: 01/29/2002
• Published: 09/19/2002
• Est. Priority Date: 03/16/2001
• Status: Active Grant

• Current Assignee: Hitachi Printing Solutions, Ltd. (Ricoh Company Limited)
• Original Assignee: Hitachi Printing Solutions, Ltd. (Ricoh Company Limited)
• Inventors: Mizuno, Masahiro, Nakazawa, Souichi, Miyamoto, Atsushi
• Granted Patent: US 6,599,040 B2
• Time in Patent Office: Days
• US Class Current: 400/580
• CPC Class Codes: B41J 11/46 by marks or formations on the paper being fed
• CPC Class Codes: B41J 3/60 for printing on both faces of the printing material

Abstract

In a print position setting method, a sequence of the following operations of printing toner mark 4 by the obverse side printer, of detecting the toner mark 4 by a mark sensor 9, and feeding a printing sheet a distance ranging from a toner mark detecting position 12 to a page leading edge position 6 when the printing operation starts, is automated.

Claims

1. A method of setting a print start position in a continuous form printing system having a mark sensor for detecting a toner mark printed at a specific position on a printing sheet of paper and a switch for triggering a print-start-position setting operation, said method comprising the steps of:

starting the printing of the obverse side of said printing sheet by depressing said switch when said continuous form printing system is in a both-side print mode;

stopping the printing operation in said continuous form printing system when the printing of a specific number of pages of said printing sheet has been performed before a first page of the obverse side of said printing sheet reaches a mark sensor of a reverse side printer;

starting the transporting of said printing sheet in said reverse side printer;

detecting said toner mark pre-printed at a specific position on a first page of said printing sheet by said mark sensor; and

transporting said printing sheet a specific distance measured from a position where -said toner mark is detected.