HP DesignJet Z6 User Guide - Page 189
Clean the printhead drop detector, continues working normally, however
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Clean the printhead drop detector The printhead drop detector is a sensor that detects which nozzles on the printheads are not printing in order to substitute them for good printing nozzles. If particles, such as fibers, hair or paper pieces, block the sensor printquality is affected. When the front panel displays a warning message that the clean process is needed, you are recommended to clean the printhead drop detector. If you do not clean the printhead drop detector immediately, the printer continues working normally, however, the front panel display continues to show the warning. CAUTION: Wear gloves to avoid getting ink on your hands. 1. Turn off the printer at the front panel. 2. To avoid an electric shock, turn off the printer and unplug it. ENWW Clean the printhead drop detector 181
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