^ZZ - Printer Sleep

^ZZ puts the printer into an idle or shutdown state after a stated number of seconds without work. It serves battery life, and the guide accepts it only on the PA400 and PT400 battery-powered printers, so every other printer ignores it.

Syntax

^ZZt,b

Support

Recognised, deliberately skippedparsed: none · state: none · rendered: none

Accepted and skipped, because it configures the printer rather than the label. It cannot change the rendered output, and Labelary skips it too.

Power management, with no effect on a rendered label. The renderer does not parse this command. It reports IGNORED_COMMAND at info severity, which does not reach X-Warnings. Labelary is also silent, so the rendered label is identical in both engines. — not pinned by a test

Labelary renders this command.

Parameters

tDelayoptional · integer

Seconds of idle time before sleep. The guide gives 0 its own meaning: it disables automatic shutdown and does not sleep at once.

Default: the previously set value, or 0
Accepted range: 0 to 999999 seconds
Invalid value: not documented, and we have not measured it. The renderer does not parse or measure this command.
Test coverage: No test at the minimum, maximum or one step outside the range.

bSleep immediatelyoptional · Y or N

Whether to sleep at once or wait for the print queue to drain.

Default: N
Invalid value: not documented, and we have not measured it. The renderer does not parse or measure this command.
Test coverage: No documented value is exercised by a test (Y, N).

Y: Sleep at once
N: Finish the queue first (default)

Behavior

The delay is an idle timeout, not a countdown to sleep, so 0 disables automatic shutdown rather than sleeps at once. The second argument sleeps at once, and Y there shuts the printer down with labels still in the queue.

Power management has no bearing on a rendered label. The renderer does not parse this command. It reports IGNORED_COMMAND at info severity, which does not reach X-Warnings. Labelary is also silent, so the rendered label is identical in both engines.

Example

A one-minute idle timeout, sleeping only once the queue has drained:

^XA
^ZZ60,N
^FO50,50^A0N,40,40^FDLast label^FS
^XZ

Open in viewer

^PQ Print QuantityPrints the label more than once, the one command here that changes how many pages come back.