Ricoh G188 Service Manual page 460

Engine Service Mode
[Image Parameter]
2107
DFU
001 Image Gamma Flag
002 Shading Correction Flag
[Test Pattern]
2109
Generates the test pattern using "COPY Window" tab in the LCD.
003 Pattern Selection
0 None
1: Vertical Line (1dot)
2: Vertical Line (2dot)
3: Horizontal (1dot)
4: Horizontal (2dot)
5: Grid Vertical Line
6: Grid Horizontal Line
7: Grid pattern Small
8: Grid pattern Large
9: Argyle Pattern Small
10: Argyle Pattern Large
005 Color Selection
006 Density: Bk
007 Density: M
008 Density: C
009 Density: Y
G188/G189
*ENG [0 or 1 / 1 / 1 /step]
*ENG [0 or 1 / 1 / 1 /step]
- [0 to 23 / 0 / 1/step]
11. Independent Pattern (1dot)
12. Independent Pattern (2dot)
13. Independent Pattern (4dot)
14. Trimming Area
16: Hound's Tooth Check (Horizontal)
17: Band (Horizontal)
18: Band (Vertical)
19: Checker Flag Pattern
20: Grayscale Vertical Margin
21: Grayscale Horizontal Margin
23: Full Dot Pattern
Specifies the color for the test pattern.
[1 to 4 / 1 / 1/step]
-
1: All colors, 2: Magenta, 3: Yellow, 4:
Cyan
-
Specifies the color density for the test
pattern.
-
[0 to 15 / 15 / 1 /step]
-
0: Lightest density
15: Darkest density
-
8-48 SM Appendix