Abstract: Disclosed is a compact bill accumulation device which has a bill accumulation space with decreased depth and does not cause bill accumulation errors. The bill accumulation device (100) is provided with front guides (8) and reverse guides which form a bill accumulation space, and with a bill stopper (6) which, disposed on the front guides (8), stops bills released by a by a feed roller (1), wherein bills stopped by said bill stopper (6) are accumulated on a stage (4). Multiple V-shaped grooves are formed on elongate ribs (18) and disposed along the long direction of the ribs, said grooves extending in the short direction thereof; said ribs (18) are arranged in rows and at prescribed intervals on either side of the front guides (8) so as to be perpendicular to said released bills.

Abstract: A medium conveyance apparatus includes a conveyance roller, a pinch roller and a pinch roller spring. The pinch roller includes a pinch roller shaft and a bearing. The pinch roller shaft has a flat surface formed thereon to be made in contact with a spring flat surface of the pinch roller spring, thereby preventing the pinch roller shaft from rotating together with the bearing.

Abstract: Disclosed is a compact bill accumulation device which has a bill accumulation space with decreased depth and does not cause bill accumulation errors. The bill accumulation device (100) is provided with front guides (8) and reverse guides which form a bill accumulation space, and with a bill stopper (6) which, disposed on the front guides (8), stops bills released by a by a feed roller (1), wherein bills stopped by said bill stopper (6) are accumulated on a stage (4). Multiple V-shaped grooves are formed on elongate ribs (18) and disposed along the long direction of the ribs, said grooves extending in the short direction thereof; said ribs (18) are arranged in rows and at prescribed intervals on either side of the front guides (8) so as to be perpendicular to said released bills.

Abstract: A ticket-printing device has a ribbon sensor and a mode-switching circuit. The mode-switching circuit automatically selects different printing conditions depending on whether or not the ribbon sensor detects the presence of an ink ribbon. The ink ribbon is wound on a supply spool and take-up spool. When the ink ribbon is replaced, a ribbon fixture holds the supply spool and take-up spool in correct relative positions so that they can be easily slipped onto a supply spool shaft and take-up spool shaft in the ticket-printing device.