Heat Load Contribution; Reliability; Safety Features - Tally T6218 Maintenance Manual Supplement

T6218 Maintenance Manual Supplement

Heat Load Contribution

The T6218 printer generates more or less heat depending upon its print load, as described below.
For site planning, a conservative average, based on 40% DP character coverage, is 1200
BTU/Hr. (350W).
Printing Conditions (110V/60Hz)
Power on, not printing
100% Uppercase rolling ASCII
Black Page Plot

Reliability

The T6218 is designed for long-term operation with minimum maintenance in a typical office
environment.
Mean Time Between Failures (MTBF)
The average random failure rate of the printer is greater than 5000 hours when printing at the
following duty cycle: rotating ASCII character pattern in draft mode at 10 CPI with a 40%
character density and a 50% print to power on ratio. The MTBF is measured by Ongoing
Reliability Testing (ORT) data.

Safety Features

Tally stresses personal safety in both operating and maintenance related aspects. Hazard areas
have restricted access with applicable warning labels. Catastrophic failures are inhibited with
protective functions in major areas of overload potential. Some specifics:
• Moving parts and areas of electrical shock hazard are covered to guard against
inadvertent or accidental operator contact.
• The flexible fault handling system disables printing functions when normal operation
cannot continue, or when continued operation could harm the printer.
• The power supply input is fused to protect against short-circuit and overload.
12
Wattage
60
465
685
Tally Printer Corp.
BTU/Hr
205
1450
2340
P/N 1149-084775