Starbar

Create say, an A4 portrait page with 10 mm margins all round. Show margins. Add a rectangle with a 1pt border that fits to the margins. Add a small text box near the top of the page with the word ‘Top’ in it. Print this page then turn it over with ‘Top’ at the same orientation as it came out, and then print on the reverse. Hold it up to the light and if the images don’t line up exactly (in printers parlance, ‘backup’), the fault is in the printer. The reason for ‘bleed’, trade standard 3mm, is when an image needs to print to the edge of the paper there is an area that allows for folding and guillotining issues, but the pages will still ‘backup’ correctly as above.