The card works great for all types of Thermal Printers and Stand Alone Applications such as Kiosk Machines, Barcode Printers,Ticket Printers, Receipt Printers, etc.Labels or tickets  carry dust and other tiny debris with them through the printer's internal print path， Dust and debris can potentially degrade your image quality and damage your print head or other critical parts of your printer. The card ensures that the Print Head and all internal components are cleaned safely and effectively every time a roll of ticket, receipt or label stock or ribbon is loaded into the equipment.  With routine cleanings you can expect optimal image quality and a longer life for your printer.
The card is very thin and soft,can be smoothly inserted into the feed entrance,then clean the print head and path.4'X6'  and 2.1'X3.345' are available.