Knowledge / Separation Methods / Perforations / Printers Waste

Perforation printers waste: during the production of a perforation arising printers waste

Missing perforation: postage stamp with waste not executed perforation caused by printers waste (imperforated)

Partly missing perforation: postage stamp with partly not executed perforation caused by printers waste

Missing perforation hole: perforation with broken tooth needle and therefore a hole is missing in the perforation line caused by printers waste

Shifted perforation: postage stamp with shifted perforation to another position as intended caused by printers waste

Badly centered perforation: postage stamp with shifted perforation which is extended over multiple sheet positions caused by printers waste

Inverted perforation: postage stamp with 180 degrees rotated perforation caused by printers waste

Double perforation: postage stamp with twice instead once perforation caused by printers waste

Partly double perforation: postage stamp with partly twice instead once perforation caused by printers waste

Triple perforation: postage stamp with triple instead once perforation caused by printers waste

Albino perforation: postage stamp with not fully punched out perforation holes but only slightly pressed in caused by printers waste

Partly albino perforation: postage stamp with partly not fully punched out perforation holes but only slightly pressed in caused by printers waste

Oblique perforation: postage stamp with the perforation lines are not aligned parallel to the design print caused by printers waste

Oblique perforation: postage stamp with the perforation lines are not aligned parallel to the design print caused by printers waste

Rough perforation: postage stamp with imperfect perforation were provided with paper residue in the perforation holes caused by printers waste