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I have a Raspberry Pi 3 with Raspbian Lite and a printer connected to it. It is controlled by CUPS with Gutenprint drivers.
This configuration is working very slow, it takes about 7 seconds to print a 10x10px image and bigger images take up to 15 seconds.
On a Windows machine, printing is almost instantaneous, so it's not a printer problem.
Top
shows that rastertogutenprint
occupies about 100% of CPU during the print.
Is it any way to speed up the print? Any tips or directions would be valuable.