Epson T81 APPENDIX G: NOTES ON UPDATING THE MAINTENANCE COUNTER AND TURNING THE PRINTERS POWER OFF

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AApp.12 App.11

TM-T81

Specification

(STANDARD)

APPENDIX G: NOTES ON UPDATING THE MAINTENANCE COUNTER AND TURNING THE PRINTER’S POWER OFF

• This printer has a m aintenance counter function, as described in the comm and description for GS

g 0 and GS g 2.

• The values of the m aintenance counter are automatically stored in the NV memory ev ery 2

minutes (or 4 minutes maxim um) when the printer is operating, except in the power sav e mode.

• However, if the power of f is performed as described in Section G.2, the printer stores the l atest

values of the maintenance counter and ex ecutes the power off control, regardless of the updat ing

interval described above.

• If the print er is not sending/receiving data or is not operating for t wo seconds while the power is

turned on, the printer enters the power-saving mode and all of the values of the m aintenance

counter including the printer operation t ime stop counting.

The following is an example of the printer power off process when the printer is turned off using the

DLE DC4 (fn = 2) command.

1) The host transmits the fol lowing continuous procedure before the system is turned off :

cExecutes GS ( D pL pH m a b (pL=3, pH =0, m =20, a =2, b =1)

d Executes GS r n (n =1)

2) The host waits for the paper sensor status sent from the printer in response to the GS r n

command.

3) The host transmits DLE DC4 fn a b (fn =2, a =1, b =8).

4) The host waits for the power off status.

• The values of the maint enance counter are stored and the power-off sequence is performed

within 20 seconds after the host transmits DLE DC4 fn a b; then the power off status is

transmitted.

• For the USB interface model, the pri nter is required to be ready for receiving data from t he

host.

• For the serial int erface model, the printer status is transmitted regardl ess of the condition of

the host.

• For the parallel interface m odel, after the host transmits DLE DC4 fn a b, the printer is

required to be ready for receiving dat a from the host.

• If the power off status in not confirmed, wait for 20 seconds at least after transmitting DLE

DE4 fn a b.

NOTE: The printer executes the software sequence, but the power is not c ut.

5) Please turn the host power off.

NOTE: Do not execute a reset to the printer unt il the printer power is turned off after transmitting

DLD DC4 (fn = 2).