Brother MFC-J3520 Service Manual page 331

*1: With the item being displayed, pressing the SET key displays the serial number.
The serial number of the machine can be changed with the following procedure.
1) Press the SET key to display the serial number, then press the 9, 4, 7 and 5 keys
in this order.
The cursor appears at the uppermost digit of the current serial number,
indicating that the machine switches to the edit mode.
2) Enter the uppermost digit of the desired serial number with numerical keys.
The cursor moves to the next lower digit. In the same way, enter the remaining
15 digits.
Entry of alphabet letters
To enter an alphabet letter, press the corresponding numerical key repeatedly
until the target alphabet letter appears.
Numerical keys
2
3
4
5
6
7
8
9
3) Press the SET key to save the newly entered setting and return the machine to
the initial stage of the maintenance mode.
*2: Not required for servicing.
*3: With each item being displayed, pressing the SET key cycles through black →
yellow → cyan → magenta.
*4: With each item being displayed, pressing the SET key cycles through Total printed
page count → Total printed monochrome page count → Total printed color page
count → A3/Ledger printed monochrome page count → A3/Ledger printed color
page count → Printed monochrome page count except A3/Ledger → Printed color
page count except A3/Ledger.
*5: With the item being displayed, pressing the SET key cycles through total,
monochrome, and color.
*6: With the item being displayed, pressing the SET key cycles through A3 plain paper
→ A3 inkjet paper → A3 glossy paper →A4 plain paper → A4 inkjet paper → A4
glossy paper → 4x6/postcard plain paper → 4x6/postcard inkjet paper → 4x6/
postcard glossy paper → Photo L plain paper → Photo L inkjet paper → Photo L
glossy paper.
*7: With the item being displayed, pressing the SET key cycles through A3 plain paper
→ A4 plain paper → 4x6 plain paper → 4x6 inkjet paper → 4x6 glossy paper.
*8: With the item being displayed, pressing the SET key cycles through the purge types.
For details about the purge types, refer to
*9: With the item being displayed, pressing the SET key switches back to the last
errors, one by one. With an error code being displayed, pressing the
between the date when the error occurred and the ambient temperature in machine
when the error occurred (only in the case of a machine error).
Letters supported
2 → A → B → C
3 → D → E → F
4 → G → H → I
5 → J → K → L
6 → M → N → O
7 → P → Q → R → S
8 → T → U → V
9 → W → X → Y → Z
Maintenance mode
5-60
76.
key toggles
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