Model Focus: CLJ CM1015/1017, CLJ2600/2605, CLJ4600/4650 & CLJ5500/5550 Color Plane Registration (CPR) Issues Issue: After replacing the Laser Scanner Assembly or the DC Controller, one or more colors will print out of sync, or slightly off from one another rather than one solid, complete line. In these printers, the scan parameters for each of the laser scanners are stored on the DC Controller. When the formatter is changed, the stored settings are applied to the new scanner. In some cases one or more colors will shift in the X or Y axis compared to the other colors. Solution: To correct this problem, first use the "CALIBRATE NOW" function from the printer menu. If this fails to fix the issue, we have had success using the "COLD RESET" or "NVRAM INITIALIZE" procedures. Troubleshoot in the following order: 1 - Calibrate 2 - Cold reset 3 - NVRAM Initialization CAUTION: A NVRAM initialization will clear all settings including page counts, serial numbers, formatter number, and service ID. It should only be performed by a trained Service Technician. *This Tech Tip is contributed by Laser Pros. Visit their website www.LaserPros.com or email any question to marketing@laserpros.com.