Ricoh R-C4 Service Manual page 217

21 July 2006
4417 IPU Test Pattern
Prints test patterns from the IPU video data outputs.
0.No Print
1.Vertical Line – 1 dot
2.Vertical Line – 2 dot
3.Horizontal Line – 1 dot
4.Horizontal Line – 2 dot
5.Alternating Dot Pattern
6.Grid Pattern – 1 dot
7.Vertical Bands
8.Grayscale – Horizontal (8 level)
9. Grayscale – Vertical (8 level)
10.Grayscale – 16 level
11.Cross Pattern
12.Slant Pattern
13.Patch Pattern (256 level)
14Patch Pattern (64 level)
15.Trimming Area
16.Frequency characteristics – Vertical
15.Frequency characteristics – Horizontal
Change to the copy mode display by pressing the
the test pattern.
4428 SBU Auto Adjustment
Performs the auto scanner adjustment.
Using this SP mode after replacing the white plate or erasing the memory on the
controller board. See "Replacement and Adjustment – Copy Image Adjustments -
Standard White Density Adjustment" for details on how to do this.
Press Execute on the touch panel to start.
SERVICE PROGRAM MODE
5-29
(Interrupt) key, then print