What copy quality settings are available and how do I change them?
The available copy quality settings are Auto, Mixed, Picture, Film Photo, and Text. Press the Copy Menu button, use the arrow buttons to select the Optimize menu, press OK, then select the desired copy quality option and press OK. Note that the setting returns to the default value after two minutes.
From the official HP Laserjet M1530 Multifunction Printer manual, page 7
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