Ricoh MT-C1 Service Manual page 532

15 February 2006
The following SP codes are for the B246 Series.
4550 Scanner:Text/***
4551 Scanner: Text
4553 Scanner: Text/Photo
4554 Scanner: Photo
4565 Scanner: Grayscale
4580 Fax: Text/***
4581 Fax: Text
4582 Fax: Text/Photo
4583 Fax: Photo
4584 Fax: Original 1
4585 Fax: Original 2
MTF Filter Level:
001
Main Scan: 0-15
003 MTF Filter Strength:
Main Scan: 0-7
006 Smoothing Filter:0-7
007 Brightness:1-255
008 Contrast:1-255
009 Isolated Dot
Removal:0-7
4600* Read SBU ASIC ID
Displays the SBU ID code confirmed by reading the SBU after the SBU adjusts
automatically at power on.
[0~FFFFh/1]
4601* SBU PLL Adjustment
Adjusts the PLL bandwidth. DFU
[0~FFFFh/1]
4605 Scanner Adjustment
001* Flag Display
Displays a flag to indicate whether density control adjustment was executed with
the standard white board for the CCD.
[0~1/1]
0: Not executed.
1: Executed
SERVICE PROGRAM MODE TABLES
Sets the MTF level (Modulation Transfer Function) coefficient
designed to improve image contrast. Set higher for stronger
effect, lower for weaker effect.
[0~15/1]
Sets the strength of the coefficient selected for 001.
[0~7/1]
Note: Set 001 before adjusting the strength with 002.
Use to remove "jaggies" if they appear. Set higher for smoother.
[0~7/1]
Set higher for darker, set lower for lighter.
[1~255/1]
Set higher for more contrast, set lower for less contrast.
[1~255/1]
This SP sets the level for removing dots when a color original is
scanned with a scanner software application. The higher the
setting, the greater the effect applied for removing background
dots.
[0~7/0/1]
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