理光復印機老是出現代碼SC440，到底是什么問(wèn)題??？
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Transfer belt bias error
The feed back bias from the transfer belt is more than 4V for 60 msec while the transfer belt bias is output. The A/D conversion level is 20 or less for 60 msec. The PWM duty is 24% or more for 60 msec.
Causes
? Power pack broken ? Defective harness ? Disconnected connector 轉印帶問(wèn)題 具體應該是轉印帶下面那個(gè)傳感器臟了