Borders not printing properly

[slight]

I just received a new PC with Windows 7 and Excel 2013.
I use borders on most of my worksheets.
Some worksheets print Grey borders as Black.
Some worksheets do not print any borders.
These worksheets were created on a computer with Windows XP.
My printer is a HP Laserjet P4014n.

Does anyone know how to correct this?

Thank you.

 

[Chihiro]

If the sheet was created using older version of Excel, colour scheme preset, the scheme may have changed in newer version of Excel.

You may need to adjust your sheet in Excel 2013 to desired preset and/or custom colour.

Edit: See link for more details about Colour Palette
http://www.officewriter.com/blog/2013/05/08/excels-color-palette-explained