Brother MFC4550 PLUS - Manual (Page 174)

The Print is too Light or too Dark
The print density dial is located in the
comer under the top cover. (Remove
the drum unit assembly.) You can use
it to adjust print density by increasing
or decreasingthe Print Density function
setting you chose.
The print may become darker or lighter
as conditions change (such as changing
the toner cartridge and dmm unit or if
the MFC has become overheated from
heavy use).
Print Density Dial
Use a straight blade screwdriver to turn the print density dial clockwise for darker
print and counterclockwise for lighter print. The dial has been set to the middle position.
Make five or six copies to bring the toner up to the level of the new setting.
If the print is still too light, check to see if the Toner Save feature is ON (see page 70).
Received Faxes Appear as Split or Blank Pages:
If the received data is divided and printed on two pages or if you get an additional
blank page, your Paper Size setting may not be correct for the paper you are using (see
page 66). If you are using the fixed reduction feature, check to see if the reduction ratio
is suitable for the real paper (see pages 67-68).
When Dialing Doesn’t Work...
You may have the wrong dialing mode. Change the TONE/PULSE setting. (See page
19.) You should check all the telephone line connections (such as to the handset and
to the wall jack). Check also that the power cord is connected and the power switch
is turned on. (See page 9 of Setup Manual for Fax, Printer, Copier.) Check by pressing
Hook to see if you hear a dial tone. Also try dialing by first pressing Hook or lifting
the handset. Wait until you hear the fax tones and then press Start.
MFC Does Not Answer When Called:
Make sure the MFC is in the correct receiving mode for your setup (either FAX, F/T
or TAD), Check for dial tone. If possible, call your MFC to hear it answer. If there is
still no answer, check the telephone Hne cord connection. Connect a standard
telephone handset to the MFC telephone jack. If there is no ringing when you call your
MFC, call your Telephone Company to check the line.
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