HP M5025 Service Manual - Page 597
False left door open error message, Dark or flickering control-panel display
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False left door open error message The high-voltage lockout switch lever can become dislodged when the left door is closed, the fuser alienation assembly is replaced, or the MFP is bumped when the fuser is not completely seated. This will cause a false left door open error message to appear on the control-panel display. Remove the LVPS (see Low-voltage power supply assembly on page 342) and the black plastic switch cover. Move the lever to the correct position on the switch actuator. This problem might happen when a customer replaces the fuser during an engine maintenance kit procedure. Dark or flickering control-panel display ● The control-panel display goes blank during a power-on sequence and then recovers ● The control-panel display flickers while a copy is being printed ● The control-panel display goes blank while a copy is being printed The SCB cover is interfering with the engine-to-scanner FFC. Check and make sure that both ends of the cable are fully seated and not loose. Make sure that the FCC is properly routed and does not contact the cover when the cover is installed. If the FCC is properly routed, make sure that the most recent firmware upgrade is installed. Fuser edge overheat slowdown Print jobs that contain a very large number of pages can cause the MFP to initiate a slowdown until equilibrium edge heat in the fuser is achieved. It can take up to two minutes for the MFP to recover from this problem after the print job finishes. ENWW Known issues 567
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