tis Posted December 2, 2011 Report Share Posted December 2, 2011 Hi all. The LP7500 printer errors occurred E06901 - 0001, 0008,0009,521. I replaced the circuit board J391423, but with no effect. All current sources were checked and are OK. We observed in Printer control box2 a fan does not work. Normal the fan is allways on. The display does not show temperatures, but the processor heats. Please help me. Quote Link to comment Share on other sites More sharing options...
ayaz Posted December 2, 2011 Report Share Posted December 2, 2011 DEAR YOU MUST BE CHECK YOUR ARC NET (FIBER OPTIC CABLE) I THINK MAY BE CABLE DAMAGE OR CONNECTOR BAD thanks Ayaz Quote Link to comment Share on other sites More sharing options...
tis Posted December 2, 2011 Author Report Share Posted December 2, 2011 I checked the cables, I cut and cleaned connectors. Same problem. Quote Link to comment Share on other sites More sharing options...
tis Posted January 12, 2012 Author Report Share Posted January 12, 2012 Printer I / O PCB 1 (J391483) was broken. I replaced it and it works. Thanks Quote Link to comment Share on other sites More sharing options...
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