The Self Test; Instruction For Auto Power Down Mode - Star SM-S201 Hardware Manual

4.2. The Self Test

The self test procedure will check most of the printer functions.
For self test, turn on the power while holding down the FEED button.
The Self-Test checks the following :
1) Make sure paper roll has been installed properly.
2) The Self-Test prints the current printer status, which provides the control
ROM version and the communication method setting.
3) After printing the current printer status, Self-Test will print a pattern using the
built-in character set.
4) The Self-Test automatically ends.
The printer is ready to receive data as soon as it completed the self test.

4.3. Instruction for Auto Power Down Mode

The printer in the Power Down Mode will recover to the Print Ready Mode when re-
ceiving commands or button operations.
However, print data received while shifting from the Power Down Mode to the print
Ready Mode (for approx. 1 sec.) is discarded and cannot be printed.
Therefore, if the printer is in the Power Down Mode, please be sure to recover it to
the Print Ready Mode before sending print data.
[ How to Recover to Print Ready Mode & How to Check ]
1) Send the Status command (DLE EOT EOT), and Try to re-send it until receiving
the transmission value which is from 30H to 37H.
Or
2) Press the FEED button or the MODE button (the Power button for SM-S200 se-
ries) and confirm that the Power lamp (Green LED) is turned on.
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