A4 Printer Diagnostics

Check essential printer output with one page

Choose the right test page for your device and quickly check text clarity, grayscale range, line integrity, color shift, and page alignment. Every page is planned for one A4 sheet and can be printed directly from the browser.

Color Printer

Color printer test page

Includes RGB, CMYK, grayscale, gradients, text, line, and registration checks for color inkjet and laser printers.

Open color test page

Black & White Printer

Black & white printer test page

Focuses on grayscale, text, fine lines, grids, coverage, and alignment for monochrome laser and similar printers.

Open B&W test page

Recommended print settings

  • Use A4 paper in portrait orientation.
  • Set scale to 100% and avoid fit-to-page resizing.
  • Enable background graphics so blocks and grayscale print completely.
  • Use borderless or minimum margins to check paper feed offset.

Tool Highlights

  • Separate color and black-and-white entries for quick printer-specific selection.
  • Covers text, grayscale, lines, grids, color blocks, gradients, and page alignment.
  • Designed as a one-page A4 test sheet for direct browser print preview.
  • Critical test lines use real borders to reduce missing-line issues in print preview.