Printout Of Scanning Compensation Data (Function Code 05) - Brother MFC620CN Service Manual

8.5.2 Printout of Scanning Compensation Data (Function code 05)

Function code 05 is not supported in the maintenance program embedded in the flash ROM of the
MFC210C U.S.A./Canadian models. To use Function code 05 in these models, you need to
temporarily load the full maintenance program onto the flash ROM. Refer to
Function
The machine prints out the white and black 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 white and black level data and takes in the scanning
compensation reference data.
(1) MFC620CN/425CN/420CN/410CN/215C/210C and FAX2440C
Press the 0 and 5 keys in this order in the initial stage of the maintenance mode.
DCP315CN/310CN/120C/117C/115C/110C
Enter 0 and 5 by using the
(*To enter a numerical code on models having no numerical keypad, press the
display the numerical code to be entered and then press the Set key. Repeat this operation for each
numerical code.)
The "PRINT" will appear on the LCD.
(2) The machine prints out the scanning compensation data list containing the following:
a) Black/white data graph
b) LED light intensity pulse data for green image (2 bytes)
c) LED light intensity pulse data for blue image (2 bytes)
d) LED light intensity pulse data for red image (2 bytes)
e) Compensation data for background color (1 byte)
f) Black level data (4970 bytes)
g) White level data for red image (4970 bytes)
h) White level data for green image (4970 bytes)
i) White level data for blue image (4970 bytes)
(3) Upon completion of recording of the compensation data list, the machine returns to the initial
stage of the maintenance mode.
NOTE: When the machine prints monochrome images after monochrome scanning, only the green
data is valid.
NOTE: If any data is abnormal, its code will be printed in inline style.
NOTE: When operate Function code 05, unplug the USB cable.
and Set keys.*
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Section 8.1.
key several times to
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