my Aficio 550 not print
I am normally printing on AF 550 (with port RJ45). Then turn off and then turn on after 10 minutes. AF 550 can't print. All LED light (PWR, LED2,LED3,LED4,LED5) on print controller : TB1-CS0, TB2-UN PROT, SW2(1-on,2-off,3-off,4-on). Document server and Job list keys not affect. Remove RAM, net card, it still not print test. Copy operate good. I check BICU : LED102 blinking normal; LED103 light normal;LED104 blinking normal. But LED105 blinking, LED106 less light and then no light. LED105 and LED106 are unusual in comparison with service manual (LED105 off normal; LED106 bling normal). Please help me.