Follow these steps to properly clean the imprinter.
Solution
Cleaning the Imprinter
Cleaning the Guide Plate Ink that collects on the guide plate inside the optional imprinter may stain the documents when they are scanned. Clean off the ink with water and a mild detergent on a soft cloth that has been firmly wrung-out, and then thoroughly dry it with a dry cloth.
Cleaning the Ink Cartridges If the imprinter print head nozzles are dirty, printing may become streaked or spotty. To prevent this, periodically remove the ink cartridge and clean the print head with a soft, dry cloth or cotton swab.
CAUTION Do not touch the metal contacts on the ink cartridge. Doing so may cause poor connections, resulting in poor print quality.