
Supported Printers and Drivers
To summarize, configuration settings for a Windows printer apply to printing in the following sequence:
1. If the LSO setting is enabled and valid for the printer, #1 (the Label Level setting) is used to print
the label. Otherwise, the Application Level setting is used.
2. If the LSO setting is disabled and the PSO setting is enabled and valid for the printer, #2 (the
Application Level setting) is used. Otherwise, the System Level setting is used.
3. System Level setting is used if both #1 and #2 (LSO and PSO settings) are disabled.
4. If a job containing a *TRAY command is submitted through LPS, the *TRAY command Paper
Source setting overrides the label setting. (Refer to the *TRAY command section of the "Print
Request Data Structures" topic in the LPS guide.)
Validation
Internally, the selected Paper Size and Paper Source PSO configuration items, when saved, are identified
by both a string and an ID value. The following steps are taken to validate the configuration setting
with the capabilities of the printer.
1. If the saved ID matches one of the IDs in the printer’s list, then the saved string is compared to
the printer’s string for that ID. If the strings match, then that ID is used. Otherwise, see #2 below.
2. If the saved string matches one of the strings in the printer’s list, then the printer’s ID for that
string is used. Otherwise, see #3 below.
3. If a matching ID is found in #1 but the saved string does not match the printer’s string for that ID,
then that ID is used. Otherwise, see #4 below.
4. Validation failed; the setting is not applied (the printer’s control panel configuration is used).
Note: Different printer drivers are not necessarily in synch with these strings and IDs. The table below and the
validation scenarios that follow provide an example:
Win Printer 1 Win Printer 2 Win Printer 3 Win Printer 4
Printer Auto Select –
257
Printer auto select - 257 Auto Select - 7 Auto Select - 262
Manual Feed (Tray 1) –
4
Manual Feed (Tray 1) -
258
Manual Feed - 4
Manual Paper Feed –
4
2000 Sheet Input Tray -
259
Tray 3 - 259
Some Validation Scenarios
l A label designed for Win Printer 1 with a “Manual Feed (Tray 1)” setting, when printed to Win
Printer 2 would result in the Paper Source ID value of 258 being set in the print time
configuration (Validation step # 2).
Loftware Label Manager Version 10.1.1 User's Guide
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