Brother MFC-7240 - Page 256

5-37
Confidential
*1
The serial number can be changed using the steps below.
(1) While the serial number is displayed on the LCD, press the [9], [4], [7], and [5]
buttons in this order. The first digit of the serial number flashes.
(2) Use the numeric keys to enter the first digit of the machine's serial number, and
press the [ ] button to change the flashing digit. Repeat this operation until the
nine-digit serial number is entered.
<Entry method of alphabetical characters>
Press the corresponding numeric keys in the table below until the desired
alphabetical character is displayed.
(3) When serial number entry is completed, press the [OK] button.
The new setting is stored, and the machine returns to the initial state of the
maintenance mode.
To abort serial number entry, press the [Stop/Exit] button. Setting is canceled, and
the machine returns to the initial state of the maintenance mode.
*2
Press the [OK] button while the number of times the consumable part has been replaced is
displayed, and the date the consumable part was replaced last is displayed.
Press the [OK] button again, and the number of times the consumable part has been
replaced is displayed again.
*3
Average print rate = Print area / printable area
*4
Paper type according to the printer driver settings. It does not necessarily match the type
of paper actually fed.
*5
01 to 10 are entered in ## in chronological order. When you press the [OK] button with the
machine error history displayed, the page counter value when the error occurred is
displayed.
LCD Description
Number of error
occurrences
HODN_ER: Number of errors caused by dirt on the
corona wire
FUSR_ER: Number of fuser unit errors
MTLK_ER: Number of laser scanner motor lock errors
Error log related
items
MACHINEERR_##:
*5
Error history ## displayed for users:Error
code/Page count when occurred
COMERR##: Last communication error code
Numeric key Assigned characters
22 → A → B → C
33 → D → E → F
44 → G → H → I
55 → J → K → L
66 → M → N → O
77 → P → Q → R → S
88 → T → U → V
99 → W → X → Y → Z