Ricoh FW780 Service Manual - Page 423

MECHANICAL OPERATION 2. DETAILED SECTION DESCRIPTIONS 2.1 MECHANICAL OPERATION 2.1.1 BASIC OPERATION [D] [C] [B] [A] B436D501.WMF [D] Roll Feed Unit B435/B436 B436D103.WMF There are two types of the roll feed unit. B435 Roll feed unit has one roll feed unit (1st [A]). B436 Roll feed unit has two roll feed units (1st [A] and 2nd [B]). The cutter unit [C] uses a sliding rotary cutting blade. When turning on the main switch or when roll paper is replenished, the roll feed motor rotates and the leading edge of the roll paper is fed until the roll lead edge sensor [D] is activated. Then, the leading edge of the roll paper is returned to the paper feed start position (60 mm before the cutter unit). SM 7-3 B435/B436