Ricoh TH-C1b Service Manual page 227

B156/b220
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SERVICE PROGRAM MODE
Mode No.
4
(Class 1, 2, and 3)
417
IPU Test Pattern Select
1
select any test pattern
440
Chroma Adjustment
1
460
ADS (Digital) Level
2
540
Printer Vector
1
R: Option
2
R: R
3
R: G
4
R: B
5
Y: Option
6
Y: R
7
Y: G
8
Y: B
9
G: Option
10
G: R
11
G: G
12
G: B
13
C: Option
14
C: R
15
C: G
16
C: B
17
B: Option
18
B: R
Function / [ Setting ]
Prints test patterns from the IPU video data outputs.
• 0: Scanning Image
• 1: Checker
• 2: Oblique Checker
• 3: Horizontal Gray Scale
• 4: Vertical Gray Scale
• 5: RGB YMCK Scale
• 6: UCR Gray Scale
• 7: Color Patch 16 Steps 1
• 8: Color Patch 16 Steps 2
• 9: Color Patch 64 Steps
• 10: Checker (YMCK)
• 11: Patch (YMCK)
• 12: Banding 1 (Gray)
• 13: Banding 2 (Gray)
• 14: Horizontal Gray Scale 2
• 15: Scanning Image + Checker
• 16: Scanning Image + Gray Scale
Change to the copy mode display by pressing the
Interrupt key, then print the test pattern.
Adjusts the color chroma for the scanner.
[0 ~ 5 / 3 / 1 /step] DFU
Selects the auto erase background level. All background
below this level is automatically erased.
[0~ 128 / 10 / 1 /step]
Adjust the vector correction of the filter in the CCD on
the SBU unit.
[0 ∼ 255 / 0 / 1 /step]
When replacing the SBU, input the data from the data
sheet that is included with the spare SBU unit.
5-24
10 February, 2005

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