Constant inverter speed timing method and apparatus for duplex sheets in a tandem printer
AssigneeXerox Corporation
InventorBrian R. Conrow
Life of this patent
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Abstract
The disclosed embodiments are directed to a method and apparatus for duplex imaging in a tandem print engine system. The features of the disclosed embodiments include imaging a first side of a sheet in a first marking module in the system, inverting the sheet, and imaging a second side of the sheet in a second marking module in the system one pitch after N revolutions of a photoreceptor following the first side imaging.
Claims19
A method of duplex imaging in a tandem print engine system comprising the steps of:
- imaging a first side of a sheet in a first marking module in the system;
- inverting the sheet;
- and
- imaging a second side of the sheet in a second marking module in the system one pitch after N revolutions of a photoreceptor following the first side imaging.
A method of duplex imaging in a single print engine electrophotographic system comprising the steps of:
- imaging a first side of a sheet;
- inverting the sheet;
- and
- imaging a duplex side of the sheet one pitch after an integer number of revolutions of a photoreceptor in the system.
An electrographic printing system comprising:
- a tandem print engine system including a first photoreceptor and a second photoreceptor, the first and second photoreceptor each having a seam that are offset by an amount X relative to each other and each of the first and second photoreceptors are revolving at a constant speed;
- wherein an imaging of a duplex side of a sheet occurs an (N+X) number of revolutions and one pitch after imaging of a simplex side of the sheet, wherein N is an integer number of revolutions of the first and second photoreceptor and X is any real number.
A computer program product comprising:
- a computer useable medium having computer readable code means embodied therein for causing a computer to perform duplex imaging in a tandem print engine system, the computer readable code means in the computer program product comprising:
- computer readable program code means for causing a computer to image a first side of a sheet in a first marking module in the system;
- computer readable program code means for causing a computer to invert the sheet;
- computer readable program code means for causing a computer to image a second side of the sheet in a second marking module in the system one pitch after N revolutions of a photoreceptor following the first side imaging.
Dependencies are inferred from the claim text.