1AF
1-3-24
Figure 1-3-22
Developing unit block diagram
Toner density is detected by the toner sensor (TNS).
The sensor section of the toner sensor detects the ratio of toner to carrier in the developer
near it and converts it into a voltage. As more toner is used, the ratio of toner to carrier
decreases, increasing the toner sensor output voltage.
When the ratio drops below the specified value, the increase in toner sensor output voltage
triggers toner replenishing. When toner is added and the ratio of toner to carrier returns to
normal, the toner sensor output voltage drops to the point where toner replenishing stops.
CN11-5
CN11-6
CN11-9
CN11-10
CN11-3
CN11-1
CN1-20
TFM
TLDS
TNS
TNS SIG
TNS CONT
DB REM
MPCB
CN1-8
HVTPCB
Developing bias
Summary of Contents for DC-1560
Page 1: ...DC 1560 2050 KME S M SERVICE MANUAL Published in Oct 99 841AF110 DC 1560 2050 DC 1560 2050...
Page 3: ...SERVICE MANUAL DC 1560 2050...
Page 13: ...1 1 7 1AF CONTENTS 1 2 Handling Precautions 1 2 1 Drum 1 2 1 1 2 2 Developer and toner 1 2 1...
Page 15: ...1 1 11 1AF CONTENTS 2 1 Electrical Parts Layout 2 1 1 Electrical parts layout 2 1 1...
Page 27: ...DC 1560 2050 KME S M I Theory and Construction Section THEORY AND CONSTRUCTION SECTION I...
Page 33: ...1 1 7 1AF CONTENTS 1 2 Handling Precautions 1 2 1 Drum 1 2 1 1 2 2 Developer and toner 1 2 1...
Page 78: ...DC 1560 2050 KME S M ELECTRICAL SECTION II II Electrical Section...
Page 79: ...1 1 11 1AF CONTENTS 2 1 Electrical Parts Layout 2 1 1 Electrical parts layout 2 1 1...
Page 98: ...DC 1560 2050 KME S M III Set Up and Adjustment Section III SET UP AND ADJUSTMENT SECTION...
Page 169: ...1AF 3 3 13 End Yes No Press the stop clear key Exit simulation mode Adjust for another mode...
Page 201: ...1AF 3 3 45 End Yes Press the stop clear key Exit simulation mode No Adjust for another mode...
