Printout Of Scanning Compensation Data (Function Code 05) - Brother DCP-7030 Service Manual

1.4.2 Printout of Scanning Compensation Data (Function code 05)

<Function>
The machine prints out the black and white level data for scanning compensation.
<Operating Procedure>
Do not start this function merely after powering on the machine but start it after carrying out a
sequence of scanning operation. Unless the machine has carried out any scanning
operation, this function cannot print out correct scanning compensation data. This is because
at the start of scanning operation, the machine initializes black and white level data and takes
in the scanning compensation reference data.
(1) Take a black and white copy.
(2) MFC7840W/7840N/7450/7440N/7340/7320
Press in order the 0 and 5 buttons in the initial stage of the maintenance mode.
DCP7045N/7040/7030
Press the
OK button.
The "PRINTING" will appear on the LCD.
(3) The machine prints out the scanning compensation data list containing the following:
■ Black and white scanning
a) LED PWM data
b) LED pulse data (G)
c) REFH (PWM) data
d) Background color
compensated data
e) Black level data
f) White level data
(4) Upon completion of recording of the compensation data list, the machine beeps for one
second and returns to the initial stage of the maintenance mode.
Note:
If an incorrect value is found, the machine prints out the data with the reversal format (white
on black).
or button. "MAINTENANCE 05" appears on the LCD, and then press the
1Byte
2Byte
1Byte
1Byte
Depends on the number of pixels of the previous scanning
Depends on the number of pixels of the previous scanning
5-4
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