Roland BN20/A Vinyl Jam Blocker Kit prevents the paper from rolling up into the printer causing the printer to jam and damage your printer. Doe not interfere with product warranty. Included is 2 Jam Blockers, instructions and link to video instructions.
*Jam blocker will only protect the paper from curling up inside the machine near the front glass. It doesn't protect the from jamming before the first bar. Jamming in front of the first bar is prevented by making sure your paper is cut straight and not too short.
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