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Re: Increase the transmission level on Brother Fax 645
Menu, *, 2, 8, 6, 4
Print out the number 11 and switch 13 will tell you what level its at.
Now its bit switches so it gets tricky. In maintenace mode you choose 10 to change switches then go to switch 13.
You will have something that looks like 10111001 (binary). The last four numbers represent the transmission level. The tricky bit is that your level is in fact a minus number so want to reduce it to make it louder. The example I gave you the number you look at are 1001. The first number represents a 8, second a 4, third a 2 and the fourth a 1. The first and fourth are on ie a "1" so it equals 8 + 1 = 9 with a maximum of 16. My advise would be to take 1 or 2 of the total number that you work out.
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Check the baud rate of your transmissions. Slow them down to the slowest setting and send a test fax to a helpful person. Slowly increase the baud rate (communication data speed) and send the fax test. When the fax doesn't show up on the receive site, then step one baud rate speed back, and save the setting.
It could also be your fax that is faulty, or even the receive sites fax, also being faulty.
To test your copy-head, insert a document into your loading section of the fax and press copy. If the copy prints out fine, then you know the head is reading correctly.
It is also possible that the receiver fax (the other end) has a printhead failure.
You will get sound signal like longer beep. when you get three short beeps it means error (sent fax was not successful). Also you can set XMIT report (means after every your sent fax, you will get printed out sheet with confirmation or error for previous sent fax - not recommended, will increase consumption of paper and toner). If want to, follow steps: - press key "Menu/Set" - press "2" key - press "4" key - press "1" key (will see "trans: off") - with navigation key "down" or "up" select "trans: on" or "trans: on + image" - then press key "Menu/Set" to confirm it
Sounds like you may have a noisy phone line, incorrectly set transmission level or no filters installed if using broadband adsl service, also pick up phone is it free of any background noise or crackles? (tel phone company or cable problem if noisy)
In australia there is a service for test fax level across phone line called FOLDS (Fax online diag service) maybe your carrier have one too so you can test?