Lexmark C782 Service Manual - Page 300

5061 Printhead removal and adjustments See Printhead assembly on page 7-13 for the part number. Warnings: • Whenever a printhead is replaced, it is necessary to perform the ""Mechanical alignment". Then, if a black printhead is replaced, perform the "Black printhead electronic alignment" on page 4-77 and the "Color printhead electronic alignment" on page 4-78. If a yellow, cyan, or magenta printhead is replaced, perform the "Color printhead electronic alignment" on page 4-78. • Do not loosen or replace more than one printhead at a time to retain factory settings. • The printhead alignment assemblies must be removed once the mechanical alignment is completed. The printhead comes with two printhead alignment assemblies. Mechanical alignment CAUTION When you see this symbol, there is a danger from hazardous voltage in the area of the product where you are working. Unplug the product before you begin, or use caution if the product must receive power in order to perform the task. 1. Turn the printer off. 2. Remove the top cover. See "Top cover assembly removal" on page 4-13. 4-72 Service Manual