Lexmark C912 Service Manual - Page 159
Summary Notes:, Yellow is very difficult. When you make the yellow adjustment, swap
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5055-xxx When the Y value is correctly adjusted, the magenta radar image should look like the following example. The Theta adjustment is done in the same manner as the Y except Theta values are taken from the right side of the test pages. Summary Notes: Objective: Using the X, Y, and T adjustment procedure, adjust the color to overlay the radar image as precisely as possible. X and Y values are taken from the left side. Theta is taken from the right. Increasing values for X drives the color radar right. Increasing values for Y and Theta drive the color radar image down the page. Do both the X and Y before attempting Theta. Use a loop or magnifying glass (4x or higher) to make the job easier. Yellow is very difficult. When you make the yellow adjustment, swap the cyan toner cartridge with the yellow cartridge. Run through the procedure making the correct adjustments to the yellow X, Y, and Theta adjustment. Remember to swap the supplies position back to the correct position when you finish. Diagnostic aids 3-9
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