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TOSHIBA e-STUDIO28/35/45 Unix Printer Driver
User’s Guide 30
Constraints
As settings are changed, the program checks if the selection violates some
constraints specified in the PPD configuration file. The constraints are rules that tell
when an option is valid when combined with other options. For example, Punch holes
cannot be done if there is no puncher. An A3 paper size may not be allowed to come
from Tray 3. Duplex may not be allowed on Transparency paper. These are only
examples. To find out about what options can be combined with other options, you
must check the PPD configuration file. A message will be shown when you select an
option that violates a constraint:
Saving settings
The Save settings button saves the changed (non-default) settings to the settings
file. The program checks if the selected options are non-default (compared to values
from configuration file). If so, they are saved. If all settings are default settings, the
file will be empty and no settings will be saved.
When a setting is saved, the following message is shown.
Fi
g
ure 22 When no settin
g
is saved
Fi
g
ure 23 When an
y
settin
g
is saved
Fi
g
ure 21 Constraint violation error