— 47 —
DLE EOT n[Function] Sending status in real-time
[Code] <10>H<04>H<n>
[Range] 1 n 4
[Outline] Sends in real-time the status specified by “n”.
n = 1: Printer status
n = 2: Status caused by an offline condition
n = 3: Status caused by an error
n = 4: Continuous paper detector status
[Caution] • Each status represents the current status. It is 1 byte data.
• The status is transferred without checking whether the host is
ready to receive or busy.
• This command is executed even if the printer is in offline state,
receive-buffer full state, or error state.
• This command is dealt with when it is received.
•If another data string of <10>H<04>H<n> (1 n 4) is
received, the printer acts the same way as with this command.
Therefore, the user should be reminded of this fact.
[Example 1]
Suppose a command “ESC * mnL nH [d1 ... dk]”, where d1 =
<10>H, d2 = <04>H, d3 = <01>H.
• The DLE EOT n command cannot be interleaved into the code
string of another command consisting of 2 bytes or more.
[Example 2]
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.
•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.