Identify which ink cartridge printed which part of the diagnostic page, so that if there are defects, it will be possible to know which ink cartridge is the problem.
Different combinations of ink cartridges can be installed in the product, and different ink cartridge combinations print different diagnostic page patterns. The right and left ink cartridges will print in the same areas of the page no matter which ink cartridges are installed.
Figure : Layout of the diagnostic page
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Printed by the left ink cartridge
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Printed by the right ink cartridge