Bizhub 454e fax problem

[KM7155]

Re: Bizhub 454e fax problem

Most of our fax issues are caused by a non analog line...Just because you see a fax cable coming out of the MFP and disappearing into the wall does not mean it's a analog fax line...Some of the other issues are already mentioned...country code is another culprit. We also turn OFF ECM, and JPEG sending. There is a 2 wire fax line that helps eliminate cross talk. Putting the MFP in OFF-HOOK and manually faxing can help diagnose problems, also dial the MFP from your phone and see what kind of answer you get. Be sure the fax is wired to the correct slot (both the pinned and USB cable, they are labeled FAX1). Fax should be initialized at setup and you want to do all your changes after the initialization. Ask the customer to show you the phone bill with the line charge on it...I have seen many converters work, but again, when they fail (protocol error, missing images, 1/2 sheets ect) almost all the time it's due to a digital line...The weird thing is I've seen a bizhub 350 work flawlessly for 4 years on a digital line, but the replacement MFP (C360/C224e etc) was buggy from the get go. You have to assume that this is due to the low fault tolerances of a microprocessor controlled fax board. The service handbook lists the values for send/receive, might be a good idea to get a line tester to check these values. Emujo

Hi Emujo,

thanks for ur details replied.
the problem now is when i use my mobilephone to call the fax line, the line got thru, but not into data mode, forever it will " toot toot"
good point when u mention the off hook function, i found out when i call with my mobilephone, then i press the offhook button, the fax kit
seems to response to the offhook button, and my mobilephone can hear the data mode sound.
now beside this machine, i have put in another bizhub machine with fax, it works perfectly.