Oki LPR C7500 User Manual page 426

PDF Version Check
The version level of PDF files supported is version 1.3 or below. A
"Warning" dialog displays for any PDF file whose version is not
supported.
If when attempting to PDF-direct-print a file, "ERROR:PDF to
PS conversion failed" displays, the file contains an
embedded font not installed on the system. Using Acrobat,
delete the text that is embedded, or unembed the embedded
font. In Acrobat, select
Remove the checkmark in the
For additional information, see the PDF Print Direct Help file in the
PDF Direct Print Utility.
NOTE
®
Tool
C9300/C9500 Software Utilities • 425
®
Touchup Text
Embed box.
attribute.