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.