PRINTER ENGINE SERVICE MODE 17 January, 2003
5-42
4
Mode No.
(Class 1, 2, and 3)
Function / [ Setting ]
[DF: Density Adj.] DF Density Adjustment
688
1 DF: Density Adj. *
SBU
CF
Adjusts the white shading parameter when
scanning an image with the ARDF.
[ 83 to 100 / 86
/ 1 %/ step ]
Adjusts the density level if the ID of outputs made
in the DF and Platen mode is different.
[DF: Density Correction]
1 R
2 G
800
3 B
*
SBU
CF
Sets a coefficient to adjust the image density level
when scanning an image with the ARDF.
[ -20 to 20 / 0
/ 1/step ] DFU
[Scanner IPU Test]
1 Test1:Register Access Performs a write and read check of the ASICs on
the scanner IPU board and displays the result.
00: OK
11, 12, 13, 14, 15: NG
904
2 Test2: Image Path
CF
Performs an image path check on the scanner IPU
board and displays the result.
00: OK
21, 22, 23, 24: NG
[Dither Selection]
905
1 Dither Selection *
NV
CF
Changes the parameters for error diffusion.
[ 0 to 255 / 0
/ 1/step ] DFU
[VPU Test Pattern]
1 Test Pattern: R Selects the test pattern generated by the scanner
SBU board.
[ 0 to 4 / 0
/ 1 /step ]
0: Default (Scanned Image)
1: Cyan pattern
2: White pattern
3: Cyan Pattern 16 steps
4: Line pattern
2 Test Pattern: G Selects the test pattern generated by the scanner
SBU board.
[ 0 to 4 / 0
/ 1 /step ]
0: Default (Scanned Image)
1: Magenta pattern
2: White pattern
3: Magenta Pattern 16 steps
4: Line pattern
907
3 Test Pattern: B
CF
Selects the test pattern generated by the scanner
IPU board.
[ 0 to 4 / 0
/ 1 /step ]
0: Default (Scanned Image)
1: Yellow pattern
2: White pattern
3: Yellow Pattern 16 steps
4: Line pattern
[Gamma [K] Photo (Mono) ] Printer Gamma Adjustment for Black/Photo mode
1 Offset: Highlight
2 Offset: Middle
3 Offset: Shadow
909
4 Offset: IDmax
*
NV
CF
Adjusts the offset data of the printer gamma for
black in B&W and Photo mode.
[ 0 to 30 / 15
/ 1 /step ]
See ‘Replacement and Adjustment – Gamma
Correction – Copy Mode’ for how to use.
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