Obtain Printer Characteristics (Opc) - IBM 6400 Programmer's Reference Manual

Device Control Command Set

Obtain Printer Characteristics (OPC)

This order is a host request for information about the current printer
characteristics. The printer responds by placing the requested information,
identified as an acknowledgement type X
subsequent Acknowledge Reply. The printer reply is a series of self-defining
fields that requires multiple acknowledge reply buffers. After each buffer is
returned, and if the user application requests ACK continuation by sending a
command with the flag byte set to (bit 0 and bit 2 equals 1) X
subsequent buffer is returned until all data is sent.
Acknowledge Reply for Obtain Printer Characteristics
Table 30. Data Area-Acknowledge Reply for Obtain Printer Characteristics
Data Area (Byte)
0-23
24-33
34-48
49-54
55-326
327-333
334-339
340-346
347-353
or
354-413
The self-defining fields contain specific information about the printer
characteristics.
The following charts describe these self-defining fields.
Printable Area Self-Defining Field: Page extents are set at initialization time to
reflect the operator panel settings. The Set Media Size command can change
the page extents.
52
6400 IPDS
Length D6FF Flag
Description
Printable Area Self-Defining Field
Image and Coded Font Resolution Self-Defining Field
Storage Pools Self-Defining Field
Color Support Self-Defining Field
Resident Symbol Set-Defining Field
Print Quality Support Self-Defining Field
XOA RRL RT & RIDF Support SDF
Common Bar Code Type/Modified Self-Defining Field
Product Identifier (7-byte)
and
Product Identifier SDF (60-byte)
Table 31 (Page 1 of 2). Printable Area Self-Defining Field
Byte Value
0-1 X 0018
'
2-3 X ' 0001
4 X FF
' '
5 X 00
' '
6 X ' 00 '
7 X ' 00 '
8-9 X 3840
'
' 06 ' , in the Special Data (SD) area of a
Correlation ID
(Optional)
Description
Length of this Self Defining Field
'
' Printable Area Self Defining Field ID
Default Input Media Source
Reserved
Unit Base 10 inches
Reserved
L-units per Unit Base
'
' A0 ' , the
Data