Electrophotography – Control of electrophotography process
Reexamination Certificate
2006-04-25
2006-04-25
Tran, Hoan (Department: 2852)
Electrophotography
Control of electrophotography process
C399S049000, C399S072000
Reexamination Certificate
active
07035557
ABSTRACT:
A method for correction of the calibration of the register mark accurately and/or register accurate printing process of an electrophotographic printing unit, preferably of a color-printing unit. Large surface toner fields are placed on a conveyor belt for the substrate to be printed, particularly in the larger spaces between the substrate sheets to be printed. The influence of a toner field placed on a conveyor belt for print substrate sheets on the register mark and/or registration of the printing process is identified, and such influence is expressed in the form of at least one correction value or parameter suitable for the correction of the calibration.
REFERENCES:
patent: 6493012 (2002-12-01), Buch et al.
patent: 6522857 (2003-02-01), Dreher et al.
patent: 6744997 (2004-06-01), Burkes et al.
patent: 6817295 (2004-11-01), Metzler
patent: 6829456 (2004-12-01), Regimbal et al.
patent: 6836635 (2004-12-01), Metzler et al.
Boness Jan Dirk
Dreher Ingo Klaus Michael
Hunold Heiko
Schrader Stefan
Eastman Kodak Company
Kessler Lawrence P.
Tran Hoan
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