Ricoh B286 Service Manual page 332

SP2-xxx Drum
2805 Drum Motor Speed DFU
This SP adjusts the drum motor speed.
1 Width:420mm more
2 Width:420mm less
2902 Test Pattern
Use these SP's to select and print test patterns.
IPU Scanning Test Pattern
1
(See section 5.8.1 Test Pattern Printing for instructions)
Select this test pattern if you suspect there is a problem with scanning. Select
one of 17 available test patterns (1-17).
* 0: None
1: Vertical Line (1-dot)
2: Vertical Line (2-dot)
3: Horizontal Line (1-dot)
4: Horizontal Line (2-dot)
5: Independent Dot (1-dot)
6: Grid Pattern (1-dot)
7: Vertical Stripes
8: Horizontal Gray (16-level)
2 IPU Printing Test Pattern (See section 5.8.1 Test Pattern Printing for instructions)
Select this test pattern if you suspect there is a problem with image printing.
Select one of 11 available test patterns (1-11). Refer to "3. Replacement and
Adjustment" for more details about how to use these patterns to check these
items:
B286/B289
[0 to 17/0/1]
9: Vertical Grayscale (16-level)
10: Grayscale (16-level)
11: Cross Pattern
12: Argyle Pattern
13: Density Patch (256-level)
14: Density Patch (64-level)
15: Trimming Area
16: Bandwidth (Vertical)
17: Bandwidth (Horizontal)
5-62 SM