HP Officejet 4500 User Guide - Page 88
Regular white streaks in the bars, Bar colors are not uniform, Large-font text, product, see
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Chapter 7 To prevent problems causing ragged bars on the PQ Diagnostic Report, try the following solutions: • Avoid leaving un-taped ink cartridges outside of the printer for an extended period of time. For more information about handling ink cartridges, see Handle the ink cartridges. • Always turn off the product using the (Power) button, which prevents air from getting into the cartridges. For more information about turning off the product, see Turn off the device. Regular white streaks in the bars Example of bad color bars: The blue bar has regular white streaks. Bar colors are not uniform Example of Bad Color Bars: The yellow bar is streaked with another color. c. Large-font text: Look at the large-font text above the color blocks. The type should be sharp and clear. Example of good large-font text The letters are sharp and clear - the printer is operating correctly. 84 Solve a problem
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