The invention that meets the needs identified above is a web browser plug-in or feature comprising a modification program, a configuration program, a table reduction program, algorithms and rules, that interacts with a web browser to analyze a web page for tables. This body has an intermediate curved section extending between two ends that curve inwardly. Two variations of tensioning assemblies are shown. The present invention more particularly relates to a means wherein impedance modification may advantageously be carried out as a function of the location of one or more conductive bridge along the length of a gap region. This can assist older users who often find their mobility hampered by declines in sensory, cognitive and motor abilities. The sheet feeding device rotates the pickup roller under a state in which the pickup roller abuts against a friction body, to thereby clean the pickup roller.