I am working on a Ricoh MPC 2000 (actually Lanier LD420C) same thing I have green power light on red alert light red light on printer button but my display on op-panel is dark no light at all, I have tried a new operation panel with no luck, any hints on what to try next I was told to try polygon mirror motor because it may be indicating an SC 220 code which could cause a dark screen but I cant get into Web Monitor to verify any SC codes although it does beep like it has an SC code when turned on. Any help is appreciated. Thx all.
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