Select your printer model

Parameters are refined by the selected printer.

EU-m30
TM-J2000
TM-J2100
TM-L90
TM-L90 LFC
TM-L100
TM-m10
TM-m30
TM-m30II
TM-m30II-H
TM-m30III
TM-m30III-H
TM-m30II-NT
TM-m30II-S
TM-m30II-SL
TM-m50
TM-m50II
TM-m50II-H
TM-P20
TM-P20II
TM-P60
TM-P60II
TM-P80
TM-P80II
TM-T20
TM-T20II
TM-T20III
TM-T20IIIL
TM-T20IV-L
TM-T20X
TM-T20X-II
TM-T70
TM-T70II
TM-T81III
TM-T82II
TM-T82III
TM-T82IIIL
TM-T82IV-L
TM-T82X
TM-T82X-II
TM-T83III
TM-T83IV
TM-T88IV
TM-T88V
TM-T88VI
TM-T88VII
TM-T90
TM-T100
TM-U220
TM-U220II
TM-U230

GS g 2

[Name]

Transmit maintenance counter

[Format]

ASCII

Hex

Decimal

103

[Range]

m = 0

nL, nH: different depending on the printers

, EU-m30, TM-L90 LFC, TM-L100, TM-m10, TM-m30, TM-m30II, TM-m30II-H, TM-m30II-NT, TM-m30II-S, TM-m30II-SL, TM-m50, TM-T20, TM-T20II, TM-T70II, TM-T82II, TM-T88V:

(nL + nH × 256) = 20, 21, 22, 50, 70, 148, 149, 150, 178, 198

[Description]

Transmits the value of the maintenance counter specified by the number.

(nL + nH × 256)	Type	Maintenance counter
10 – 19	Resettable	Counter for Serial impact head
20 – 29	Counter for Thermal head
30 – 39	Counter for Ink jet head
40 – 49	Counter for Shuttle head
50 – 59	Counter for Standard devices
60 – 69	Counter for Optional devices
70 – 79	Counter for Time
138 – 147	Cumulative	Counter for Serial impact head
148 – 157	Counter for Thermal head
158 – 167	Counter for Ink jet head
168 – 177	Counter for Shuttle head
178 – 187	Counter for Standard devices
188 – 197	Counter for Optional devices
198 – 207	Counter for Time

(nL + nH × 256)

Type

Maintenance counter

10 – 19

Resettable

Counter for Serial impact head

20 – 29

Counter for Thermal head

30 – 39

Counter for Ink jet head

40 – 49

Counter for Shuttle head

50 – 59

Counter for Standard devices

60 – 69

Counter for Optional devices

70 – 79

Counter for Time

138 – 147

Cumulative

Counter for Serial impact head

148 – 157

Counter for Thermal head

158 – 167

Counter for Ink jet head

168 – 177

Counter for Shuttle head

178 – 187

Counter for Standard devices

188 – 197

Counter for Optional devices

198 – 207

Counter for Time

[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 specific information for details.
Unsupported counter numbers cannot be specified.
This command transmits [Header – NUL], as shown below:

Send data	Hex	Decimal	Number of bytes
Header	5Fh	95	1 byte
Counter value (∗1)	30h – 39h	48 – 57	1 – 10 byte
NUL	00h	0	1 byte

Send data

Hex

Decimal

Number of bytes

Header

5Fh

1 byte

Counter value (∗1)

30h – 39h

48 – 57

1 – 10 byte

NUL

00h

1 byte

- (∗1) 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.
When you use this command, follow these rules.
- When the host PC transmits the function data, transmit the next data after receiving the corresponding data (the header – NUL) from the printer.
- With serial interface printers, be sure to use this function when the host is in the READY state.
- With a parallel interface, the data sent by this function [Header – NUL], as with other data, is first stored in the send buffer, then output in sequential order when the host computer changes to the reverse mode. Note that the send buffer capacity is 99 bytes, and any data exceeding this volume limit will be lost; therefore, when using this command, it is important to configure the operation so that the host computer's change to the reverse mode and the subsequent status send/receive process is performed quickly.
Types of maintenance counters differ, depending on the printer models.
When the host is communicating with the printer by XON/XOFF control, the XOFF code might interrupt [Header – NUL].
The maintenance counter data can be identified to other transmission data according to specific data of the transmission data block. When the header transmitted by the header is [hex = 5Fh/decimal = 95], treat NUL [hex = 00h/decimal =0] as a data group and identify it according to the header.