Page alignment for tractorless paper

A method of aligning multiple pages front-to-back for printing, the method comprising:

• receiving a print job to be printed on a continuous web of print media in a duplex format with multiple first pages across a front of the web and multiple second pages across a back of the web which correspond with the multiple first pages;
• determining a print region of the print job with respect to a virtual continuous forms representing a size of the web;
• determining a size of sheetlet regions for the print region;
• mapping the multiple first pages to the sheetlet regions on a front of the virtual continuous forms;
• mapping the multiple second pages to the sheetlet regions on a back of the virtual continuous forms;
• applying first offsets to the sheetlet regions on the front of the virtual continuous forms based on operator input;
• determining second offsets for the sheetlet regions on the back of the virtual continuous forms based on an additive inverse of the first offsets;
• and
• modifying processing of the print job by applying the second offsets to the sheetlet region on the back of the virtual continuous forms to maintain alignment of front pages and back pages across the web.

A non-transitory computer readable medium embodying programmed instructions, which, when executed by a processor, are operable for performing a method comprising:

• receiving a print job to be printed on a continuous web of print media in a duplex format with multiple first pages across a front of the web and multiple second pages across a back of the web which correspond with the multiple first pages;
• determining a print region of the print job with respect to a virtual continuous forms representing a size of the web;
• determining a size of sheetlet regions for the print region;
• mapping the multiple first pages to the sheetlet regions on a front of the virtual continuous forms;
• mapping the multiple second pages to the sheetlet regions on a back of the virtual continuous forms;
• applying first offsets to the sheetlet regions on the front of the virtual continuous forms based on operator input;
• determining second offsets for the sheetlet regions on the back of the virtual continuous forms based on an additive inverse of the first offsets;
• and
• modifying processing of the print job by applying the second offsets to the sheetlet region on the back of the virtual continuous forms to maintain alignment of front pages and back pages across the web.