Discovering Your Printer's Borderless Limits
Every printer has a mechanical non-printable area (the margin where rollers grip the paper). This page utilizes precise physical edge rulers to show you the exact millimeter where your printer stops rendering.
Reading the Edge Rulers
Look at the perimeter rulers. The number where the ink mathematically drops off represents your permanent hardware margin. Use this number to configure your "Safe Area" in design software.
Borderless (Full Bleed) Capabilities
If your printer supports borderless printing (common in photo printers), the ink should stretch all the way off the paper. If a white sliver remains, check your driver’s "Overspray" expansion settings.
Detecting Asymmetrical Margins
Many inkjets require a massive 15mm bottom margin to safely hold the paper while printing the end. This test instantly reveals if your margins are asymmetrical (e.g., 5mm top, 15mm bottom).
Centering Errors
If the central crosshair is physically off-center when measured with a ruler, your feed tray is misaligned. Slide the physical paper guides tightly against your paper stack.