Epson TM-T90 Specification page 216

Confidential
APPENDIX G: NOTES ON UPDATING THE MAINTENANCE
COUNTER AND TURNING THE PRINTER'S POWER
OFF
G.1 About updating the maintenance counter
• This printer has a maintenance counter function, as described in the command description for
GS g 0 and GS g 2.
• The values of the maintenance counter are automatically stored in the NV memory every 2
minutes (or 4 minutes maximum) when the printer is operating, except in the power save
mode.
• However, if the power off is performed as described in Section G.2, the printer stores the latest
values of the maintenance counter and executes the power off control, regardless of the
updating interval described above.
• If the printer is not sending/receiving data or is not operating for two seconds while the power is
turned on, the printer enters the power-saving mode and all of the values of the maintenance
counter including the printer operation time stop counting.
G.2 About the printer's power off
In order to store the latest values of the maintenance counter, the print head must be capped
before the printer is turned off. This is done when the power switch (front) is turned off.
If the power switch is covered by the attached power switch cover, make sure to execute the DLE
DC4 (fn = 2) command first from the host computer to the printer. Below is the description of how
to turn the power off using the power switch.
G.2.1 Printer setup by the host with printer power off
Follow the procedure below for setting up the printer first.
1) Turn the printer's power off using the power button in the front.
2) Wait until the POWER LED turns off.
3) Turn DIP switch 1-1 on.
4) Turn the printer's power on using the power button.
5) Attach the power button cover on the power button.
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