Konica Minolta bizhub c20 Service Manual page 279

14. SERVICE MODE
• SENSOR INFORMATION 3
Bit
0 1st image transfer retraction position sensor
1 2nd image transfer retraction position sensor
2 Tray2 set switch
⎯
3
⎯
4
5 Media size switch (1)
6 Media size switch (2)
7 Media size switch (3)
⎯
8
⎯
9
⎯
10
11 Waste toner sensor
12 OHP sensor
⎯
13
(1) How to Read Sensor Information
• Convert the numerical value of the hexadecimal number printed on [Engine Element
Data Information] into the binary number, it compares with the allocation of each BIT, and
the status of the sensor is confirmed.
ex. When "SENSOR INFORMATION1" is displayed as 0x0005.
1. Convert four end digits "0005" of 0x0005 into the binary number (14 digits).
2. The BIT number is allocated in converted value "00000000000101."
(BIT0 to BIT13 is sequentially allocated from the first digit.)
0
0 0 0 0 0 0 0 0 0 0 0 1 0 1
BIT13 12
3. In this case, because BIT No. "0" and "2" become "1", so it can be confirmed that the
tray2 media empty sensor is "Paper present" state and the media empty sensor is
"Paper present" states from the Sensor Information table.
234
Part Name
0
11 10 9 8 7
Field Service Ver. 1.0 Sep. 2008
Operation Characteristics
1
Not retracted
Not retracted
In position
⎯
⎯
ON
ON
ON
⎯
⎯
⎯
Full
OHP
⎯
0
6 5 4 3 2
0
Retracted
Retracted
Out of position
⎯
⎯
OFF
OFF
OFF
⎯
⎯
⎯
Not full
Not OHP
⎯
5
1 BIT0
A00FF3C502DA