CONFIDENTIAL
Paper roll Customize commands GS ( E
Ver. 10.0 1 p. 571
[Notes] ■The value of parameter
fn
determines the function number for this command. Command operation
differs, depending on the function number.
■User setting mode is a special mode to change settings for the printer’s built-in non-volatile memory.
■To change a setting, you must change the printer into user setting mode, using Function 1.
■Execute function 2 of this command after making the setting. The setting value is effective after executing
the software reset of function 2.
■Note the rules below for the user setting mode:
• The printer does not process character data.
• The printer does not process commands other than this command and the GS I command.
• The printer does not process real-time commands.
• The printer does not transmit ASB status.
■Functions 4, 6, 12, and 50, the functions used to transmit the current settings to the host, can be used at
any time, without changing into the user setting mode.
■Data is written to the non-volatile memory by Functions 3, 5, 7, 11, 48, and 49. Note the following when
using those functions:
• The printer might be BUSY. In this case, be sure not to transmit a command from the host because the
printer will not receive the data.
• Excessive use of this function may destroy the non-volatile memory. As a guideline, do not use any
combination of the following commands more than 10 times per day for writing data to the non-
volatile memory: FS q, GS ( A (part of functions), GS (C (part of functions), GS(E (part of
functions), GS(L / GS 8 L (part of functions), GS(M (part of functions), GS g 0, and FS g 1.
[Notes for transmission process]
■Data is transmitted by Functions 1, 4, 6, 12, and 50. When you use these functions, obey the following
rules.
• When the host PC transmits the function data, transmit the next data after receiving the corresponding
data from the printer.
• With a serial interface printer, be sure to use this function when the host can receive data.