When printing an Excel sheet, gridlines created with the finest dotted style of border, are next to invisible on paper when printing. If I change the border to the next bigger level of dashed lines, they print fine. Toner was replaced not long ago. I shook the cartridge again to be sure that it wasn't packed. Ran fixing assembly and ITB. This printing issue didn't seem to be a gradual progression. Software updated. Page was not set to draft print. I tried a test with a empty new Excel file and came up with the same results.
Help would really be appreciated with my dumb mistake. Thank you.
