Printout Of Scanning Compensation Data - Brother IntelliFax-3550 Service Manual

3.3

Printout of Scanning Compensation Data

Function
The equipment prints out the white and black level data for scanning compensation.
Operating Procedure
Do not start this function merely after powering on the equipment but start it after carrying
out a sequence of scanning operation. Unless the equipment has carried out any scanning
operation, this function cannot print out correct scanning compensation data. This is be-
cause the equipment initializes white and black level data and takes in the scanning com-
pensation reference data at the start of scanning operation.
(1) Press the 0 and 5 keys in this order in the initial maintenance mode.
The "WHITE LEVEL 1" will appear on the LCD.
(2) The equipment prints out the scanning compensation data list containing the following:
FAX3550/3650/8000P/8200P/MFC4450/4550/4550plus (200 dpi)
a) 2-value quantization white level data (208 bytes)
b) 2-value quantization black level data (1 byte)
c) Photo-mode white level data (208 bytes)
d) Photo-mode black level data (1 byte)
e) LED light intensity value, 2-value quantization LED light intensity value, and photo-
mode LED light intensity value (3 bytes)
f) 2-value quantization A/D-high and photo-mode A/D-high values (2 bytes)
MFC6550MC/7550MC/7650MC/9000/9500 (300 dpi)
a) 2-value quantization white level data (1664 bytes)
b) 2-value quantization black level data (1 byte)
c) Photo-mode white level data (1664 bytes)
d) Photo-mode black level data (1 byte)
e) LED light intensity value, 2-value quantization LED light intensity value, and photo-
mode LED light intensity value (3 bytes)
f) 2-value quantization A/D-high, photo-mode A/D-high and A/D-low values (3 bytes)
(3) Upon completion of recording of the compensation data list, the equipment returns to
the initial maintenance mode.
NOTE: If any data is abnormal, its code will be printed in inline style, as shown on the next
page.
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