State Confirmation - Konica Minolta bizhub C250 Service Manual

Field Service Ver. 3.0 Aug. 2006

10.12 State Confirmation

10.12.1 Sensor Check
Functions • To display the states of the input ports of sensors and switches when the machine
remains stationary.
Use • Used for troubleshooting when a malfunction or a misfeed occurs.
Setting/ • The operation of each of the switches and sensors can be checked on a real-time
Procedure basis.
• It can be checked as long as the 5-V power line remains intact even when a door is
open.
A. Electrical Components Check Procedure Through Input Data Check
• When a paper misfeed occurs in the paper feed section of the machine, the Tray 2 Paper
Take-Up Sensor is considered to be responsible for it.
1. Remove the sheet of paper misfed.
2. From the Sensor Check List that follows, check the panel display of the Tray 2 Paper
Take-Up Sensor. For the Tray 2 Paper Take-Up Sensor, you check the data of "Take-Up"
of "Tray 2."
3. Call the Service mode to the screen.
4. Select [State Confirmation]
"Take-Up" under "Tray 2." For "Take-Up" under "Tray 2," select "1" on the left-hand side
of the screen.
5. Check that the data for "Take-Up" under "Tray 2" is "0" (sensor blocked).
6. Move the actuator to unblock the Tray 2 Paper Take-Up Sensor.
7. Check that the data for "Take-Up" under "Tray 2" changes from "0" to "1" on the screen.
8. If the input data is "0," change the sensor.
→
[Sensor Check] and then select the screen that contains
10. Service Mode
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