Canon S820 S820 User's Guide - Page 68
When to Replace Ink Tank and Maintain Printhead
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Routine Maintenance When to Replace Ink Tank and Maintain Printhead When an ink tank is empty, it must be replaced. The BJ Status Monitor (Windows) or the BJ Print Monitor (Macintosh) will initially advise you of a low ink level. At this stage, you can still continue to print. Once an ink tank is empty, the BJ Status Monitor (Windows) or the BJ Print Monitor (Macintosh) will tell you to replace the ink tank. Attempting to print causes the POWER lamp to flash four times. ¬ Replacing an Ink Tank If printing becomes faint or a specific color is no longer printing, even though there is still enough ink, the printhead nozzles are probably clogged. Follow the procedures below to clean the nozzles. ¬ Printing the Nozzle Check Pattern If the print quality is poor ¬ Printhead Cleaning If the problem remains ¬ Printhead Deep Cleaning If printhead deep cleaning does not resolve the problem, the printhead may be worn out. Contact the Canon Customer Care Center. When to Replace Ink Tank and Maintain Printhead 68