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bowtie = photo black , pentagon = regular black.
photo black does not fit in all HP printers using 564 ink.
Answered by bogwan 11 years ago
The bowtie is for Photo Black and the pentagon is for standard document Black.
Answered by HP Team 2 years ago
The pentagon indicates 'standard' black ink. The bowtie indicates 'Photo Black' ink.
Answered by Grelan 11 years ago