transported in the reverse direction, so that the other side of the sheet of paper is printed by the same printing mechanism as the first side.Įxamples of devices which can be attached to a conventional copying machine, printer or facsimile machine or which can be used independently or as a stand alone, include a two-sided printing device capable of making two-sided copies on both sides of a sheet of paper. The sheet of paper is then reversed, i.e. In this case, a copy is made on one side of a sheet of paper, by passing the paper over the duplex unit.

Such a process is time consuming and the copying machine or printer must be refilled with a new sheet of paper before a two-sided copy can be made.Ī printer or facsimile machine generally accommodates a plurality of sheets of paper, and hence a second print stand or duplex unit is required to make two-sided copies on both sides of a sheet of paper.

When making a two-sided copy on a conventional copying machine or printer, it is necessary to pass the sheet of paper over a duplex unit, which comprises a pair of rollers or a second copy stand, after printing on one side, in order to effect printing on the reverse side. More particularly, the present invention relates to an image data output device which can be optionally attached to a copying machine, printer, facsimile machine or multi-function printer or alone, and which is capable of performing two-sided printing or duplex printing on both sides of a piece of paper, copying on both sides of a sheet of paper (hereinafter called two-sided/duplex copy or simply two-sided copy).Ī conventional copying machine or a printer usually comes with single-sided print mode, in which a sheet of paper is printed on only one side, and duplex print mode, in which a sheet of paper is printed on both sides. There is no need to paste the serial number if you are using the product key as the setup will ask for the serial number and it will be automatically pasted.The present invention relates to a device for image data output, for example, a copying machine, printer, facsimile machine or a multi-function printer which is capable of performing at least two of the above functions, wherein multiple functions are concurrently performed. Corel Draw X3 13 Activation Code Serial Numberĭownload CorelDRAW X3 Keygen Code for free.

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