If the Printer Language is switched while printing a file:
If "Auto" is selected for "Printer Language", and "I/O Timeout" is set to a small value, the machine may switch the Printer Language to a different one even while a file is being processed.
If this occurs, specify a larger value for "I/O Timeout", or specify a setting other than "Auto" in "Printer Language".
For details about I/O Timeout, see "Host Interface", Print.