Table of Contents Page6.3 Tips for Correcting Image Problems 676.4 Preparation for Troubleshooting 686.5 Troubleshooting Flow 69....6.5.1 LCD Status Message/Problem List 70....6.5.2 LCD Message Troubleshooting 71........(1) The printer does not work normally after the power isturned on.72........(2) [JAM error] 73............Paper input jam 74............Paper feed jam 75............Paper exit jam 76........(3) Paper size error 77........(4) Fusing unit error (ERROR 71) (ERROR 72) (ERROR73)78........(5) SSIO error (ERROR 74) 79........(6) Fan error (ERROR 70) 80....6.5.3 Image Troubleshooting 81........(1) Images are light or blurred entirely 82........(2) Dark background density 83........(3) Blank paper is output 84........(4) Black vertical belts or stripes 85........(5) Cyclical defect 86........(6) Prints voids 87........(7) Poor fusing 88........(8) Vertical belts or streaks 89........Figure 6-4 90........Figure 6-5 917 Wiring Diagram7.1 Interconnect Signal Diagram 927.2 PCB Layout and Connector Signal List 937.3 Resistance Check 948 Parts ListLower Base Unit 96Upper Cover Unit 97Base Unit 98A Centronics Parallel Interface
