ijpds formats.book - Kodak

Message (MSG)
Byte Position Bytes Field Name Description
Chapter 4. Record Formats
Message (MSG)
The MSG record can be placed anywhere in the stream of documents,
after the first SOD or SDC record. The message is displayed as printing
continues. Timing of the display is not synchronized with the time of
printing of the documents before or after the MSG record.
When the MSG record is used in a fixed file, the message is displayed
when the MSG record is executed from the file.
This record should be used only where necessary. Frequent use can
reduce printing speed.
1-2 2 Record Length The length of this record, in binary, including the record length
field. For example, hex 00 2F specifies a record length of 47 bytes.
3 1 Cyclic Record Count A binary cyclic record count using modulo 256. Each record in the
job is counted, starting with hex 01 for the first record. The 255th
record is hex FF and the 256th record is hex 00. This count is used
to verify record sequence.
4 1 Control Code A binary code that identifies the record type. A value of hex 0A
identifies the MSG record.
5-n n Message An EBCDIC character string representing a message that is
displayed at the printing system.
Note: Some data stations are not capable of displaying messages, in which
case, the MSG record is ignored.
Reference Guide 4 - 59