The orange protective cap and tape attached to a new BJ Cartridge should never be reused. Reattaching the tape or cap could result in air bubbles or foreign matter getting into the ink and blocking the print nozzles. If you have already reattached the protective tape or cap, remove them immediately, reinstall the BJ Cartridge in the printer and clean the print head. If the printout is still faint after the print head has been cleaned, install a new BJ Cartridge. Printed graphics may appear with wrong colours if the wrong side of paper is being used.
Most media have only one side that is suitable for printing.
Check that the media is not loaded with the incorrect side up. Straight lines are not printed straight. The lines in tables are not printed straight. You need to ensure that the BJ Cartridge are correctly installed to confirm this, remove the BJ Cartridge and reinstall them correctly. Another possibility to this problem is the setting of quality to Fast.