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Appendix Xerox 490/980 Color Continuous Feed Printing System
B-6 Printer Operator Guide
Pre-printing Registration Marks
This section describes the pre-printing registration marks.
The ROF mark is a standard for the printer and a unique page registration mark that allows the
printed pages to be aligned in the main drive direction and secondary drive direction.
The TOF mark is a page registration mark generally used by other manufacturers' printers and
postprocessing units. The page printing start position can only be aligned in the vertical printing
direction.
ROF mark for paper without pin fed holes
ROF mark for paper with pin fed holes