ijpds formats.book - Kodak

Chapter 4. Record Formats
Range Check Record (RCR)
Range Check Record (RCR)
The RCR record sets limits for the four sides (top, bottom, left, and right)
of the page buffer. Any data that is positioned outside of these limits
causes the printer to generate a warning message for the current page.
After a warning message, printing will continue but at a reduced speed.
Byte Position Bytes Field Name Description
Warnings can be effectively disabled for the right side and bottom by
specifying the maximum positive value and for the left side and top by
specifying the maximum negative value. The maximum positive field
value is 2,147,483,647 (hex 7F FF FF FF). The maximum negative field
value is -2,147,483,648 (hex 80 00 00 00).
For compatibility with older jobs, default values for range checking are set
for all sides at the start of a new job to the size of the page buffer (top = 0,
bottom = maximum Y, left = 0, and right = maximum X). An RCR record in
the data stream after the JC2 record and before the first font, fixed file, or
SOD/SDC records will define the default range check values for the
current RIP. The ranges are set to the default values each time a new
document is started. An RCR record occurring after the start of a new
document defines the range values for the current document only.
1-2 2 Record Length The length of this record, in binary, including the record length
field. For example, hex 00 14 specifies a record length of 20 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 32
identifies the RCR record.
5-8 4 Top Limit A signed binary number that sets the limit for the top of the page
buffer. If any data is positioned at a Y value less than this field, a
warning is generated.
A value of binary zero in this field sets the limit to the top of the
page (Y = 0).
9-12 4 Bottom Limit A signed binary number that sets the limit for the bottom of the
page buffer. If any data is positioned at a Y value greater than this
field, a warning is generated.
A value of binary zero in this field sets the limit to the bottom of the
page buffer (Y = maximum Y).
13-16 4 Left Limit A signed binary number that sets the limit for the left side of the
page buffer. If any data is positioned at an X value less than this
field, a warning is generated.
A value of binary zero in this field sets the limit to the left side of the
page buffer (X = 0).
17-20 4 Right Limit A signed binary number that sets the limit for the right side of the
page buffer. If any data is positioned at an X value greater than this
field, a warning is generated.
A value of binary zero in this field sets the limit to the right side of
the page buffer (X = maximum X).
Reference Guide 4 - 27