Konica Minolta magicolor 7450 Service Manual page 203

11. SERVICE MENU
<How to Read Sensor Information>
• Convert the numerical value of the hexadecimal number printed on [ELEMENT DATA]
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
Tray 2 Device Detection Sensor is "In position" state and the Tray 2 Paper Near-Empty
Sensor is "Blocked" states from the Sensor Information table.
(SENSOR INFORMATION 1)
BIT
0 Tray 2 Device Detection Sensor
2 Tray 2 Paper Near-Empty Sensor
Conversion method from hexadecimal number to binary number
1. The hexadecimal number (four digits) is converted in each digit based on the following
table.
Hexadeci- Binary
mal number number
0 0000
1 0001
2 0010
3 0011
2. Match the converted numerical value of four digits, then two head digits are excluded
and it is assumed the binary number of 14 digits.
166
0
11 10 9 8 7
Part Name
Hexadeci- Binary
mal number number
4 0100
5 0101
6 0110
7 0110
Field Service Ver. 1.0 May 2006
0
6 5 4 3
Operation Characteristics
1
In position
Blocked
Hexadeci- Binary
mal number number
8 1000
9 1001
A 1010
B 1011
5
2 1 BIT0
4039F3C522DA
0
Out of position
Unblocked
Hexadeci- Binary
mal number number
C 1100
D 1101
E 1101
F 1111