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CONFIDENTIAL
Paper roll Miscellaneous commands GS g 2
Ver. 10.01 p. 476
[Notes]
■ There are two types of maintenance counters: resettable counters and accumulation counters. A resettable
counter is a maintenance counter that can be initialized by GS g 0, and an accumulation counter
indicates the counter value from when the printer starts operation.
■ When a counter reaches its maximum value, its value is reset to 0 in the next updating process. Units and
maximum values of counters differ, depending on the printer model and function. See the model-
dependent variations for details.
■ Unsupported counter numbers cannot be specified.
■ This command transmits [Header ~ NUL], as shown below:
■ When the counter values are transmitted, the printer converts them to character codes corresponding to
the decimal value and transmits from the most significant bit.
Example: When the counter value is 120, the “120” (expressed hexadecimally as 31H, 32H, 30H. Decimally
as 49, 50, and 48) is converted to 3 bytes of data.
■ The resettable maintenance counter can be initialized by GS g 0.
■ The maintenance counters built in the printer are standard; therefore, their values will be different,
depending on the timing of occurring errors or turning off the power.
■ The maintenance counter can be used for establishing the time for replacing consumed parts or cleaning.
178~187 Accumulation Devices that conform to the normal specification
188~197 Accumulation Option devices
198~207 Accumulation Time
Transmitted data Hex Decimal Amount of data
Header 5FH 95 1 byte
Counter value 30H ~ 39H 48 ~ 57 1 ~ 10 byte
NUL 00H 0 1 byte
(
nL
+
nH
× 256) Type Maintenance counter