SII DPU-S245, Technical Reference

Page: 56 / 170

6-11

When the command is normal and memory area has been allocated, but the bar code cannot be
printed within printable area:
The command is ignored.

When the command is normal, memory area has been allocated and the bar code can be printed
within printable area:
The two-dimensional bar code is printed.
The necessary empty capacity differs according to types and sizes of bar codes.
(a) Used Memory Capacity of PDF417
The total empty area of area 1 to 4 shown in Table 6-5 is necessary for PDF417 print.
For an example, when number of bar code data byte =15, error correction level=3, number of column
=8, and number of row=20;
Area1 = 15+1 = 16 bytes
Area2 = 2048 bytes
Area3 = 2
( )
2 3 + = 32 bytes
Area4 = (8+7)

20

2 = 600 bytes
Total = 2696 bytes
(Empty area size: Even number of bytes)
Table 6-5 GS 'p' 0 Used Memory Capacity of PDF417 Print Command
Area Memory Usage
Area1 N+1 bytes 1 *
Area2 2048 bytes
Area3 2
( )
2 L +
bytes 2 *
Area4 (C+7)

R

2 bytes 3 *
*1: N: Number of bar code data byte
When empty capacity of the external RAM is an odd number, one more byte is necessary.
When N+1 is an odd number, one more byte is necessary.
*2: L: Error correction level
*3: C: Number of column, R: Number of row