What you seeLikely meaningNext move
The outer border is cut off on one or more sidesThe border sits 14 mm inside every edge, well within any normal printer margin, so a cropped border almost always means the viewer scaled the page, borderless mode enlarged it, or the loaded paper is not the size selected.
Match the paper size in the tray, the driver and the viewer, set Actual size, and turn off borderless. Losing a millimeter or two is normal; losing a whole side is a mismatch.
The whole page prints smaller, with wide marginsThe viewer applied Fit or Shrink, usually because the PDF size and the driver’s paper size differ: an A4 file with a Letter driver setting or the reverse.
Set the driver paper size to match the file, then Actual size. A4 forced onto Letter shrinks to about 94%; Letter onto A4 to about 97%.
Browser print and PDF print look differentThey travel different paths. The browser rasterizes through its own print engine; the PDF viewer hands vector data to the driver. Each dialog can hold a different quality preset, color setting or even a different printer.
Open both print dialogs, set Normal quality, default color and the same paper type in each, and reprint.
The PDF is sharp on screen but soft on paperThe file is vector, so softness cannot come from the file. It comes from the driver quality setting, head alignment, ink spread on the paper, or a low-resolution mode.
Print the printer’s built-in quality report. If that is also soft the printer needs alignment or supplies; if not, the driver preset is at fault.
The color blocks are white but the text printsSomething between viewer and printer is set to Black only or Grayscale, or the driver is on a text preset.
Choose Color in the print dialog and reprint. If you are printing the web page rather than the PDF, also enable Background graphics in the browser dialog.
Fine grid lines vanish or look unevenThe hairlines in the PDF are 0.15 mm wide, about three or four dots at 600 dpi. They disappear in Draft mode, on very absorbent paper, or when a viewer rasterizes at low resolution before printing.
Use Normal or better quality on plain 80 g/m² paper, and print from a PDF viewer rather than a browser preview when possible.