2A3/4
2-1-6
Machine front side
Machine inside
Machine back side
1
9
8
3
7
6
2
5
4
Figure 2-1-4 Copier (switches and sensors)
1. Main switch (MSW) ...................................... Turns the AC power on and off.
2. Safety switch 1 (SSW1) ............................... Breaks the safety circuit when the front
cover is opened; resets paper jam
detection.
3. Safety switch 2 (SSW2) ............................... Breaks the safety circuit when the left
cover is opened; resets paper jam
detection.
4. Safety switch 3 (SSW3) ............................... Breaks the safety circuit when the right
cover is opened; resets paper jam
detection.
5.*Heater switch (HSW) ................................... Turns the optical and drawer heaters on
and off.
6. Toner sensor (TNS) ..................................... Detects the toner density in the
developing section.
7. Toner level sensor (TLDS) .......................... Detects the toner level in the toner
hopper.
8. Toner hopper lockup sensor (TLS) .............. Detects the amount of recycled toner in
the toner hopper.
9. Fixing unit thermistor (FTH) ......................... Detects the heat roller temperature.
* Service part.
Summary of Contents for Ri 4230
Page 3: ...SERVICE MANUAL Ri 4230 5230 ...
Page 13: ...4230 5230 S M MCA THEORY AND CONSTRUCTION SECTION I I Theory and Construction Section ...
Page 14: ...1 1 5 2A3 4 CONTENTS 1 1 Specifications 1 1 1 Specifications 1 1 1 ...
Page 100: ...4230 5230 S M MCA ELECTRICAL SECTION II II Electrical Section ...
Page 119: ......
Page 138: ......
Page 159: ...4230 5230 S M MCA III Set Up and Adjustment Section III SET UP AND ADJUSTMENT SECTION ...
Page 448: ...2A3 4 3 6 3 25 Toner scatters at the leading edge of the image See page 3 6 17 ...