Communications iTherm
®
280 Programmer’s Guide
28-04430 Rev K Page 291
Off-line Active
A configuration flag that prevents the printer from going off-line (in most cases) is
available. Off-line mode allows the application to query the printer for status rather than
assume a status from the control signals. The feature allows the host application to
query the printer at all times except when there is no power; a full input buffer; or a hard
failure. For example, when the printer‘s cover is open, the printer stops printing but still
accepts data and inquiries. The inquire cover status command returns, ―Cover open.‖
Hard failures result when there is no power or a printer fault occurs. If the printer is off-
line, either the input buffer is full or a hard fault has occurred. The host application
should not allow the input buffer to fill.
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