Citizen Systems BD2-2220 - Manual (Page 81)

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2.2.7 Status Commands
DLE EOT n
CT-S280 CT-S300 CT-S2000 CT-S4000 BD2-2220 CT-S310
support model
PMU2XXX
[See Also]
[Caution] • Each status represents the current status. It is 1 byte data.
[Outline] [The specification which is common to the model]
[Range] 1≦n≦4
[Code] < 10>H<04>H
[Function] Sending status in real-time
DLE ENQ
• If another data string of <10>H<04>H (1 n 4) is received, the printer acts the same way as
with this command. Therefore, the user should be reminded of this fact.
• This command can be executed even if printer setting by ESC = is invalid.
• If ASB (Automatic Status Back) is enabled by GS a, it is necessary to discriminate between the
status due to ASB and the status due to this command
• With parallel interface specifications, this command cannot be executed while the printer is in Busy
state.
• With serial interface specifications, this command is executed in offline state, receiving buffer full
state, and error state.
• This command is dealt with when it is received.
• This command is executed even if the printer is in offline state, receive-buffer full state, or error
state.
• The status is transferred without checking whether the host is ready to receive or busy.
Sends in real-time the status specified by “n”.
• The DLE EOT n command cannot be interleaved into the code string of another command
consisting of 2 bytes or more.
Appendix 5.3 “Identification of Send Status”
n Status
1 Printer status
2 Status caused by an offline condition
3 Status caused by an error
4 Continuous paper detector status
When memory SW1-3 is ON, the printer does not enter Busy state in the offline state and error
state.
Suppose a command “ESC * m nL nH [d1 ... dk]”, where d1 = <10>H, d2 = <04>H, d3 = <01>H.
[Example 1]
If the printer sends DLE EOT 3 after the host has sent up to ESC 3 in its attempt to send ESC 3 n,
the printer handles the ESC 3 as ESC 3 <10>H. Thus, the user should be cautious.
[Example 2]
、 ESC c 4 、 GS a 、 GS r