Canon FAX-B840 - User Manual

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Questions and Answers

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lisawalterAug 10, 2025
What to do if Canon FAX-B840 shows BUSY/NO SIGNAL error (#018)?
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  Robert ValdezAug 10, 2025
  If your Canon Fax Machine displays a BUSY/NO SIGNAL error (#018), it could be due to several reasons. The dialed number might be busy, in which case you should simply call again later. Alternatively, the receiving fax machine may not be responding within 55 seconds; ask the other party to verify their fax machine's condition and try transmitting manually. For international calls, try adding a pause in the programmed number. It's also possible their machine isn't a G3 fax, so ask them to send or receive using G3. Ensure that your machine’s tone/pulse dial settings are correctly programmed for your telephone line.
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Jennifer CollinsAug 20, 2025
Why does my Canon Fax Machine say BUSY/NO SIGNAL (#018)?
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  Melissa HallAug 20, 2025
  The BUSY/NO SIGNAL error (#018) on your Canon Fax Machine can occur for several reasons. It might be due to the other fax machine not responding in time, meaning you should contact them to check their fax or try sending manually. If it's an international call, try inserting a pause in the phone number. The issue could also be that the other machine isn't a G3 fax, so ensure they send/receive in G3. Also, make sure your machine's tone/pulse dial settings are correct for your phone line. If the number you dialed is busy, simply try calling again later.
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Wanda WangAug 30, 2025
How to fix Canon FAX-B840 Fax Machine BUSY/NO SIGNAL error (#018)?
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  fjonesAug 30, 2025
  If you're getting a BUSY/NO SIGNAL error (#018) on your Canon Fax Machine, here are a few things to check: First, the dialed number might just be busy, so try calling again later. If the other fax machine isn't responding within 55 seconds, contact the other party to check their fax or try sending the fax manually. If you are making an international call, insert a pause into the programmed telephone number. Also, make sure that the other party is using a G3 fax. Finally, ensure your machine’s tone/ pulse dial settings are correctly programmed for the type of telephone line you're using.