Setting up margins for home/office printers

[marlene]

I produced a series of brochures for a client who didn't tell me until the end of the project that they intend to provide PDFs to their members to print out on their office printers.

This is a problem, because the brochures all have full bleeds. :\

I need to rework the brochures to eliminate the bleeds. But the client wants a consistent white margin all around -- I can't let the end-user's printer determine the size of the margin.

Should I leave, say, a half-inch margin all around? Are there home/office printers that require a larger margin than that?

TIA,

mxh