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4.4.2 Details of Memory Switches
Functions of memory switches, operations at ON (1) setting, and operation at OFF (0) setting are described
below.
Memory switches without function setting are not explained but default must not be changed.
When setting memory switches manually, ON setting allows POWER LED to light and OFF setting allows it to
go off.
(1) MSW1
• MSW 1-1: Power ON Information Send/Not send
[Outline]
At power ON, the printer can send 3-byte Power ON Info status data (<3B>H <31>H <00>H) to the
computer to inform the host that the Printer Power is turned ON.
This switch sets Send/Not send of Power ON Information.
OFF (0)
ON (1)
Power ON Info
Send
Not send
Operation at ON (1):
Power ON Info function is disabled and no status is sent to the computer.
Operation at OFF (0):
Power ON Info function is valid and status is sent to the computer.
[Default] OFF(0) [Not send]
• MSW 1-2: Capacity of input buffer (Receive buffer)
[Outline]
Selects the size of input buffer.
OFF (0)
ON (1)
Buffer Size
4K bytes
45 bytes
Operation at ON (1):
Sets input buffer size to 45 bytes.
Receive buffer is full and the printer is set in the BUSY state during the period from the time the idle
space decreases to 16 bytes till it increases to 26 bytes.
Operation at OFF (0):
Sets input buffer size to 4K bytes.
Receive buffer is full and the printer is in the BUSY state during the period from the time the idle
space decreases to 128 bytes till it increases to 256 bytes.
[Default]
OFF(0) [4k bytes]
