Printout Of Scanning Compensation Data (Function Code: 05) - Brother FAX-2840 Service Manual

1.3.2 Printout of scanning compensation data (Function code: 05)

<Function>
This function is used to print the brightness level data for scanning compensation.
<Operating Procedure>
Note:
• Be sure to execute this operating procedure not immediately after the power is turned ON,
but after conducting the document scanning operation at least once in scanning. Since
the machine initializes the brightness level data and obtains the standard value for
document scanning compensation when starting scanning the document, the correct data
for compensation cannot be printed even if this operation is implemented without
scanning the document.
• The print result varies depending on whether color scanning or black and white scanning
is performed immediately before this operating procedure. Check the brightness level
data you want to print and then implement the procedure below.
(1) For white and black scanning, copy the document. For color scanning, implement color
scanning of the document.
(2) Press the [0] and [5] buttons in this order in the initial state of the maintenance mode.
"PRINTING" appears on the LCD, and the machine prints the scanning compensation
data list (refer to
Black and white/color scanning
Note:
• In the case of the black and white scanning, the output data (B) and (R) are invalid.
a) LED CURRENT DATA
b) LED pulse data 1 (UP) (G)
c) LED pulse data 1 (DOWN) (G)
d) LED pulse data 1 (UP) (B)
e) LED pulse data 1 (DOWN) (B)
f) LED pulse data 1 (UP) (R)
g) LED pulse data 1 (DOWN) (R)
h) REFH data
i) Background color compensation data
j) Black level data
k) White level data (G)
l) White level data (B)
m) White level data (R)
Fig. 5-1) containing the following:
5-4
1 byte
2 bytes
2 bytes
2 bytes
2 bytes
2 bytes
2 bytes
1 byte
1 byte
Based on previous scanning pixel count
Based on previous scanning pixel count
Based on previous scanning pixel count
Based on previous scanning pixel count
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