Canon iP4500 iP4500 series Quick Start Guide - Page 38
When Printing Becomes Faint or Colors Are Incorrect, Step 1 - problems
UPC - 013803081084
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When Printing Becomes Faint or Colors Are Incorrect When printing becomes faint or colors are incorrect even if ink remains in the ink tanks, the print head nozzles are probably clogged. Print the nozzle check pattern to confirm the condition of the nozzles and then perform Print Head Cleaning. If print results are not satisfactory, performing Print Head Alignment may improve print quality. Note Before performing maintenance z Open the Top Cover and make sure that all lamps for the ink tanks are lit red. If not, see "Getting the Ink Status Information" on page 28 and take the appropriate action. z Make sure that the ink tank is set properly. See "Replacing Ink Tanks" on page 30. z Make sure that all the orange tapes have been peeled off. z If the ALARM lamp flashes orange, see "ALARM Lamp Flashes Orange" on page 77. z Increase the Print Quality setting in the printer driver settings. Refer to the PC Printing Guide on-screen manual. Step 1 See "Printing the Nozzle Check Pattern" on page 35. If lines are missing or if white streaks appear Step 2 See "Print Head Cleaning" on page 38. If the problem is not resolved after performing Print Head Cleaning twice After cleaning the Print Head, print and examine the nozzle check pattern. Step 3 See "Print Head Deep Cleaning" on page 41. Note If Print Head Deep Cleaning does not resolve the problem, the Print Head may be damaged. Contact your Canon Service representative. z If the Ruled Lines Are Shifted See "Aligning the Print Head" on page 43. 34 Routine Maintenance