Xerox 2101 ST Digital Copier/Printer プリント

The Bleeds option moves the trim marks into the image by the amount you specify to 
ensure that the printed area extends beyond the edge of the trimmed sheet.

To specify horizontal and vertical bleed amounts for a job, click Define in the Layout 
panel and enter values (from 0 to 72 points, 0 to 1 inch, or 0 to 25.4 mm) in the 
Define Bleeds dialog box.

The Bleeds option is not available in Mixed Page mode.

When you specify a bleed, you move the trim marks into the page by the bleed 

value on both the top and the bottom of the page, and on both sides of the page. 
Therefore, you reduce the size of your finished page by twice the bleed amount. If you 
plan on using bleeds, design your image to be slightly larger than the size of the final, 
trimmed page and select a larger paper size to accommodate trimming.