CHD CHD6800 - Printer Commands; Status Transmission and Initialization

Technical Manual PRINTER CHD6800
6 © Computer Hardware Design
2 COMMANDS
2.1 DLE EOT Real time status transmission
[FORMAT] <10>H<04>H<n>
[RANGE] n = 1, 2, 4
[FUNCTION] Transmits the printer status specified by n in real-time.
n=1 Transmit printer status (v5.0.0)
n=2 Transmit offline status
n=3 Transmit error status (v5.3.0)
n=4 Transmit paper roll sensor status
[CAUTION] * The printer transmits the status without confirming if the HOST is ready to receive data.
* This command is executed when the data is received.
* This command is executed even when the receive buffer is full, or an error occurs.
* This command should not be used within the data sequence of another command that
consists of two or more bytes. Please note this when sending graphical logo.
* This command CAN be used within the data sequence of another command that consists
of two or more bytes IF delay at least 150ms after DLE or DLE EOT bytes before sending
next byte. This feature is unsupported in v1.1.1 and lower versions (6800A, 6800W)
and in v5.5.0 (6800W) and higher versions. Please note this when sending graphical logo.
* Starting with v5.5.0 (6800W) and higher DLE EOT can be used within other commands,
but will be handled also as this command. For example, if graphical logo contains this
command, this information will be printed on paper AND answer to HOST will also be
sent.
n = 1: Printer status (v5.0.0)
BIT
Function
VALUE
0
1
0
Not used
Always 0
-
1
Not used
-
Always 1
2
Drawer kick out connector pin 3 is HIGH
Low
High
3
Offline (e.g. printer error; for cause
query “Offline status“)
Online 0
Offline 1
4
Not used
-
Always 1
5
Not used
Always 0
-
6
Not used
Always 0
-
7
Not used
Always 0
-
n = 2: Offline status
BIT
Function
VALUE
0
1
0
Not used
Always 0
-