SELFTEST - Self-Test Page

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Plain English

Triggers the printer to print a diagnostic page covering its current configuration, firmware version, dot/line counters, and sensor state (TSPL2 PG §SELFTEST p31). Takes no parameters. Per-printer support table on PG p31 lists which TTP / TDP / M23 series models honour the command. Runtime hardware behaviour; the playground can't simulate a real self-test page (output depends on live printer state and counters).

When to use

Standalone diagnostic command — issue when you need to confirm printer settings, firmware, and sensor health without going through the front-panel menu.

Syntax

SELFTEST

Example

SELFTEST

Print a self-test diagnostic page

Try it in the playground View all TSPL commands