PRINT STYLESHEET QUESTION

Hi

I have a report with table Item with alert in one column

the cells have colors for good,bad, critical etc.

but when i print preview the table has no color no grid

no alternating rows

what changes do i need to make in my print style sheet to display the same colors like the template

in other words- i want grid for table cells & alternating columns & multicolors for alert values in any cell in table that reaches a threshold