20-2.Tray-Full Detecting Mechanism; 20-3.Job Tray Paper Detecting Mechanism - Minolta Di152 Service Manual

20-2. Tray-Full Detecting Mechanism
• Tray-full detection is valid only when paper is fed into the Job Tray (Job Tray in the low-
ered position).
• A tray-full condition is detected when the sensor is blocked for a continuous given period
of time (approx. 20 sec.).
Paper
Job Tray
Elevtrical Component
PC34
20-3. Job Tray Paper Detecting Mechanism
• If paper is fed into the Job Tray when the machine is in a mode in which paper is fed into
the Exit Tray (Job Tray in the raise position), the indicator lamp on the Paper Detecting
Board lights to warn the user that there is paper in the Job Tray.
• A sensor is provided for detecting paper in the Job Tray.
<When Paper is Present>
Job Tray
<When Paper is not Present>
Elevtrical Component
PC35
Control Signal Activated Deactivated
PWB-A PJ4A-9
4021M051AA
Paper
4021M050AA
Control Signal Activated Deactivated
PWB-A PJ3A-3
M-48
Full Detecting Sensor PC34
Exit Roller
L H
Paper Empty Sensor PC35
Paper Detecting
Board PWB-B
L H
4021M049AA
Wiring Diagram
16-C
4021M052AA
Wiring Diagram
18-A