Epson LQ-200 Technical Brief (Impact Printers) - Page 7

Technical Brief-Multimedia projectors Page 7 Reliability-Total Print Volume vs. Mean Time Between Failures EPSON impact printers are more accurately rated for reliability in Total Print Volume, and are also rated in Mean Time Between Failures. Total Print Volume estimates the total number of lines that the printer can print before it may fail. Mean Time Between Failures estimates the number of hours between failures at 25 percent usage and 35 percent density, which can vary depending on printing conditions, and is much less accurate than Total Print Volume. LL Reliability-Off-carriage motor assembly Most EPSON impact printers use an off-carriage motor assembly, versus the on-carriage motor used in competitive printers. L L The off-carriage motor allows the print head to reach top speed more quickly and stop more quickly because it is not carrying the extra motor weight. Because just the print head moves, there is less wear and tear on the motor for greater overall reliability. Off-carriage motor On-carriage motor P u lle y M o to r F ix e d T im in g B e lt R ack P in io n M o to r EPSON Sales Training EPSON is a registered trademark of Seiko Epson Corporation. 1/00 Other trademarks are the property of their respective owners.