Run a small group of sheets through the actual printer or copier using the final artwork and media settings. Inspect feeding, colour contrast, toner or ink adhesion, duplex orientation, curl, and registration. Bright paper can change the appearance of pale graphics, fine lines, photographs, and coloured logos, so do not judge the design only from a screen. Leave enough clear space for any later punching, trimming, or folding. After printing, allow the sheets to cool or dry before stacking and finishing. When the job will be bound, punch several printed sheets and assemble a sample with the final covers and spine. This confirms that printing and finishing work together before time and stock are committed to full production.