Phaser 6300/6350/6360 Color Laser Printer Service Manual 6-3Adjustments and CalibrationsAdjustmentsVertical and Horizontal Color RegistrationVertical Color RegistrationVertical color registration adjustment is performed automatically when theColor Registration page is printed or when a different Imaging Unit isdetected. No process for manual vertical color registration adjustment isavailable. See the procedure on page 5-29 if problems persist with verticalregistration. Vertical color registration settings are stored in the EngineControl Board’s NVRAM.Horizontal Color RegistrationThere are two adjustment options for horizontalcolor registration, automatic and manual. Thevalues for these settings are stored in theImage Processor Board’s NVRAM.Automatic registration calibration uses the CTD(ADC) Sensor to measure the distancebetween black in relation to the other colorsplaced on the Transfer Roller. The accuracy ofthis process is 2400 dpi (four times moreaccurate than the manual process). However, ifthe horizontal registration alignment is too farout of adjustment, the automatic process fails(the sensor does not detect the colors and failsto correctly align the colors). In this case, adjustthe horizontal registration manually.The manual registration calibration process hasan accuracy of 600 dpi. Use this procedurewhenever the Laser Unit has been removed orreplaced or the automatic process fails.The Color Registration menu is used to adjustthe registration of cyan, magenta and yellowagainst black. Settings range from -7 to +7 (leftto right). Zero(0) indicates the current colorregistration setting.Print the Color Registration page from theTroubleshooting --> Print Quality Problemsmenu.s6360-122-7-6-5-4-3-2-10+1+2+3+4+5+6+7-7-6-5-4-3-2-10+1+2+3+4+5+6+7-7-6-5-4-3-2-10+1+2+3+4+5+6+7
