Linux CUPS: printing images too dark or black workaround
Short:
Long:
On my Samsung SCX4600 MFD I get all images printed almost black. The obvious way to fix this without using correct color profile is to increase gamma of printed content.
Unfortunately there is no way to do this in gimp or OO or LO but you can modify gamma and brightness with
Options that are good for me: 1.2 times higher gamma and 1.1 times bigger brightness. Command to do this:
You can run this command as root (or with sudo) to set global options or as user to set local options.
sudo lpoptions -o gamma=X # X > 1000
sudo lpoptions -o brigthness=Y # Y > 100
echo "Now you can export everything to pdf and print with acroread or lp/lpr"
Long:
On my Samsung SCX4600 MFD I get all images printed almost black. The obvious way to fix this without using correct color profile is to increase gamma of printed content.
Unfortunately there is no way to do this in gimp or OO or LO but you can modify gamma and brightness with
lpoptionslplpracroreadlpracroreadOptions that are good for me: 1.2 times higher gamma and 1.1 times bigger brightness. Command to do this:
lpoptions -o gamma=12500 -o brightness=110You can run this command as root (or with sudo) to set global options or as user to set local options.