Caching outline characters in printed documents

A system configured for outline character printing on a printing device, the system comprising:

• one or more hardware processors configured by machine-readable instructions to:
• receive a print job at the printing device, wherein the print job includes print job data;
• determine, by the printing device, that the print job data identifies an outline character;
• determine whether a cache memory in the printing device includes a registration of the outline character included in the print job data;
• upon determining that the cache memory in the printing device does not include the registration of the outline character:
• retrieve, from a third-party service, outline character data corresponding to the outline character, wherein the outline character data includes a generated mathematical expression and metadata for the outline character;
• convert the generated mathematical expression into a scanline table for the outline character;
• and
• register the outline character data in an allocated portion of the cache memory, wherein the allocated portion of the cache memory includes (a) a metadata portion comprising a description of the outline character and (b) a data portion comprising the scanline table for the outline character;
• and
• upon determining that the cache memory in the printing device does include the registration of the outline character:
• render, without retrieving the outline character data from the third-party service, the scanline table accessed from the cache memory as a pattern of pixels for the outline character for the print job data received;
• and
• print, on the printing device, the pattern of pixels rendered from the scanline table accessed from the cache memory for the print job data received.

A non-transitory computer-readable storage medium having instructions embodied thereon, the instructions being executable by one or more processors to perform a method for outline character printing on a printing device, the method comprising:

• receiving a print job at the printing device, wherein the print job includes print job data;
• determining, by the printing device, that the print job data identifies an outline character;
• determining whether a cache memory in the printing device includes a registration of the outline character included in the print job data;
• upon determining that the cache memory in the printing device does not include the registration of the outline character:
• retrieving, from a third-party service, outline character data corresponding to the outline character, wherein the outline character data includes a generated mathematical expression and metadata for the outline character;
• converting the generated mathematical expression into a scanline table for the outline character;
• and
• registering the outline character data in an allocated portion of the cache memory, wherein the allocated portion of the cache memory includes (a) a metadata portion comprising a description of the outline character and (b) a data portion comprising the scanline table for the outline character;
• and
• upon determining that the cache memory in the printing device does include the registration of the outline character:
• rendering, without retrieving the outline character data from the third-party service, the scanline table accessed from the cache memory as a pattern of pixels for the outline character for the print job data received;
• and
• printing, on the printing device, the pattern of pixels rendered from the scanline table accessed from the cache memory for the print job data received.