Ricoh C211 Service Manual page 97

2.3 VT2300/VT2500 VR
NO. VR PCB Function
1. VR-101 Main
Main Motor Speed Adjustment
2. VR-102 Main 2nd Paper Exit Detection Adjustment
3, VR-I 03 Main
Drum Master Detection Adjustment
4. VR-104
Main Master Eject Detection Adjustment
5. VR-105 Main 1st Paper Exit Detection Adjustment
6. VR-I A/D Conversion White Level Adjustment
7. VR-2 A/D Conversion Black Level Adjustment
8. VR-201
Power Supply
Thermal Head Voltage Adjustment-(t6V)--
9, VR-204 Power Supply
VCC(+5V) Line Voltage Adjustment
10. VR-901 Ink Detectin
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2.4
VT2300/VT2500 DIP SW (on the image processing PCB)
NO. DIP SW
1, DPS400-I
2. DPS400-2
3. DPS400-3
4. DPS400-4
5. DPS400-5
6. DPS400-6
7. DPS400-7
8, DPS400-8
Function
Enlarge/Reduction Compensation Switch
Enlarge/Reduction Compensation Switch
Enlarge/Reduction Compensation Switch
Reproduction Ratio (ON: LT Version OFF: A4 Version)
Thermal Head (Pulse Control)
Image Density
High
4 b Low
400-5
400-6
ON ON OFF OFF
ON OFF ON OFF
Output the Test Pattern Image (Normal: ON)
Dither matrix selection (Normal: ON)
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