Waffletechnology Cleaning Card for Epson CaptureOne Check Scanner (15 Cards) (KWEPS-CS1B15WS) Waffle technology (patented in US, Canada and Australia) cleaning cards dramatically outperform flat cleaning cards. This product features patented Evanish solution that effectively breaks down dirt and debris in the card part and on thread head for effective cleaning; safe to use on electronic components. Dust, ink and debris can cloud the optical lens causing bad scans. This can make an automated system into a manual entry system increasing processing time. Clean your Canon Check Transport every 2000 scans or at least 3 to 4 times month. Clean when experiencing read failures, misreads, poor print or image quality