Details Of Memory Switches - Citizen PPU-700 Command Reference Manual

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
Function: 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.
• MSW 1-2: Capacity of input buffer (Receive buffer)
Function: Selects the size of input buffer.
Power ON Info
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.
Buffer Size
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.
OFF (0) ON (1)
Send Not send
OFF (0) ON (1)
4K bytes 45 bytes
- 176 -