A method of setting a plurality of margins in an electrophotographic machine includes setting a top margin for a reference color black by establishing a first time delay between a vertical synchronization signal and a first line. A right margin or a left margin for the reference color black is set by...http://www.google.com.au/patents/US6549225?utm_source=gb-gplus-sharePatent US6549225 - Method of margin alignment and plane-to-plane registration in a tandem color electrophotographic machine
