Switch functionality The following tables describe the functionality of the paper-quantity and paper-size switches in the 2,000-sheet input unit. Table 38. Paper-quantity detection switches SW601 SW602 Remaining paper Off Off 100% On Off 75% On On 50% Off On 25% Table 39. Paper-size detection switches Paper size SW701 SW702 SW703 SW704 A3 (portrait) On On Off Off A4 (landscape) On On Off On B4 (portrait) Off Off On Off Ledger (portrait) Off On Off Off Legal (portrait) Off On On Off Letter (landscape) Off On Off On 202 Chapter 5 - Theory of operation EN