Cantarell font prints blank (OT)

[Jonathan Ryshpan]

I have an HP M402dn printer which has started printing the Cantarell
font as blanks; a page using the Cantarell font prints as a perfectly
blank page.  The printer has no problem with (eg) the Liberation Sans
font.  I believe the problem started recently, possibly with my upgrade
from Fedora-31 to Fedora-32 on about May 17.  Questions:
 * How can I find out what fonts my printer supports?
 * How can I install fonts into the printer?

Thanks in advance - jon

[Samuel Sieb]

On 7/15/20 12:53 AM, Jonathan Ryshpan wrote:
> I have an HP M402dn printer which has started printing the Cantarell 
> font as blanks; a page using the Cantarell font prints as a perfectly 
> blank page.  The printer has no problem with (eg) the Liberation Sans 
> font.  I believe the problem started recently, possibly with my upgrade 
> from Fedora-31 to Fedora-32 on about May 17.  Questions:
> How can I find out what fonts my printer supports?
> How can I install fonts into the printer?

You don't install fonts in the printer.  Fonts are processed on the 
computer side and turned into commands to draw the letter shapes on the 
printer.  So something has gone wrong between the font, the program 
you're printing from, cups, and the printer.

What program are you trying to print from?  Can you try a different one? 
  What about using bold or italic, does that make any difference?

[stan]

On Wed, 15 Jul 2020 00:53:17 -0700
Jonathan Ryshpan  wrote:
> I have an HP M402dn printer which has started printing the Cantarell
> font as blanks; a page using the Cantarell font prints as a perfectly
> blank page.  The printer has no problem with (eg) the Liberation Sans
> font.  I believe the problem started recently, possibly with my
> upgrade from Fedora-31 to Fedora-32 on about May 17.  Questions:
> How can I find out what fonts my printer supports?
> How can I install fonts into the printer?

Not knowledgeable about printing, but my understanding is that
documents are converted into a special language that the printer
understands.  That is, the printer doesn't know anything about fonts.
It is more likely that the font in question has changed its
configuration; there was an initiative to retire old font formats and
convert them to a new one.  You should open a bugzilla against the font
that is not working.