Power-on It is important to have the printer control panel lights functional as soon as possible in the troubleshooting process so that the printer’s diagnostics can assist in locating printing errors. Follow these steps to pinpoint power problems quickly. Step 1 Confirm that the printer is plugged in to a reliable power source and the power switch is on. Step 2 Verify that the fan and motors rotate. Step 3 Verify that the formatter cables are connected properly. Step 4 Verify that the control panel light pipes in the DIMM cover are not broken or damaged. Step 5 Verify that the DIMM cover is installed properly.
Step 6 Verify that all connections to the power supply assembly are intact and the assembly is not damaged. If the power supply assembly is damaged, replace it. Step 7 Check that connections to the engine controller assembly. If necessary, replace the engine controller assembly. Step 8 Check fuser connectors, fan and main motor connectors, and the laser/scanner connector. C7058-90936 Power-on 181