Special formatting problems, Font downloading, Udk character conflict – I-Data 5250 ALLY User Manual

Page 170

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AGILE 5250 ALLY User’s Guide and Reference

Page A-8

•

use

¬¬}}}

to terminate FF suppression mode

•

send the FF

•

use

¬¬{{{

to reinitiate the FF suppression mode.

For this reason, AGILE recommends the use of these commands only for

existing applications and documents. New applications and documents

should use the Auto PFS/FF suppression modes.

Special Formatting Problems

This section discusses some additional issues regarding data stream

conflicts.

Font Downloading

XES mode printers require a special translation table to be used when

downloading sixelized data to the printer. When downloading an EBCDIC-

encoded font from the host System through the 5250 ALLY, no special

setup or handling are required. The 5250 ALLY automatically changes to

the correct translation table for the duration of the sixelized data, and

returns to the current translation table after the sixelized data.
The 5250 ALLY automatically strips all SCS control and formatting

commands for the duration of the font download regardless of whether or

not PFS and/or FF suppression are active.

UDK Character Conflict

The UDK character is a shared resource. Each data stream sent to the

printer is responsible for defining the UDK character at the beginning of

the data stream, and using a s

+X

d command to undefine the character

at the end of the data stream. Failure to follow these rules can cause a

UDK character conflict.
An example of this type of conflict is illustrated by the following sequence

of events:

1. A job from one source defines the UDK character.
2. A job from another source redefines the UDK character.
3. A second job from the first source expects the same UDK character

defined in step 1 to be active.

Data stream number 3 is not following the rules, but this is not an

uncommon problem. Here is an example of another common problem:

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