Communications
T480 Programmer’s Guide
Page
238
Rev A
100-14362
EPIC 3000 Green and Sleep Power Control
The EPIC 3000 Printer has a remote power control command that instructs it to enter
sleep mode. When the command is issued, the printer enters sleep and consumes less
power. Unlike pushing the Power button, remote sleep mode leaves the
communications active. All commands except the exit power down command are
ignored.
Green mode is only available in USB mode. In Green, USB Vbus is monitored and the
printer enters a very low power state until Vbus is restored.
[ESC] y
Remote Power Control
ASCII
[ESC] y <n>
Hexadecimal
1BH 79H <n>
Decimal
<27> <121> <n>
IPCL
&%YX17 or &%YX18
EPOS
[ESC] y <n>
Where n
17 Requests the printer to enter remote sleep mode.
18 Requests the printer to exit remote sleep mode
Description
Inquiry (ENQ) commands are accepted and answered in remote power
down mode. The printer reactivates if the power button is pressed or a wake up
command is received.
Note 1:
If power is lost after the power down command is issued, the
printer remembers it is in power down mode but does not reactivate the
communications link. The power button must be pushed to return the
printer to full operation.
Note 2:
This command is not available in STAR mode.
[ESC] ~S
Set Sleep Wait
ASCII
[ESC] ~ S<n>
Hexadecimal
1BH 7EH 53H<n>
Decimal
<27> <126> <83><n>
IPCL
None
EPOS
None
Where n
Specifies the sleep timer in 10 second increments. (1 = 10 seconds, and
so on, 0 = Disable sleep.
Description
If no data is received after this period of time, the printer will enter a sleep
mode where less power is consumed. Once in this mode, the printer will resume normal
operation after a slight delay when data is received.
Note 1:
At low temperatures, this delay will include a print head preheat
delay while the print head is heated to a level that will allow normal
operation.
Note 2:
Sleep mode also removes the feed motor hold current. It is
possible that the first line of print may be slightly altered if the paper is
moved while in sleep mode.
