CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
4-57
6.2.5 Sensors (1/3)
•
Reader Unit
Electrical signal (target)
Reference to general I/O address
Remarks
Name
circuit diagram
I/O indication
PS400 (R-CON)
A3-18-H
IO-P06-4
Scanner home position sensor
1: HP
PS401 (R-CON)
A3-17-H
IO-P06-6
Copyboard cover sensor
0: open, 1: closed(copyboard/ADF)
SD1 (R-CON)
A3-19-H
IO-P03-5
Original sensor
0: present, 1: absent
(paper)
IO-P04-4
0: ON, 1: OFF
•
Printer Unit (1/3)
Electrical signal (target)
Reference to general I/O address
Remarks
Name
circuit diagram
I/O indication
BD (DC-CON)
A3-13-K
BD sensor
PS1 (DC-CON)
A3-19-N
P013-5
Cassette 1 paper sensor
0: present, 1: absent
(paper)
PS2 (DC-CON)
A3-19-M
P014-5
Cassette 2 paper sensor
0: present, 1: absent
(paper)
PS3 (DC-CON)
A3-20-M
P013-6
Cassette 1 paper
(paper)
level sensor 1
25% (bit6=0; bit7=1)
PS4 (DC-CON)
A3-20-M
P013-7
50% (bit6=1; bit7=1)
Cassette 1 paper
100% (bit6=0; bit7=0)
level sensor 2
PS5 (DC-CON)
A3-20-M
P014-6
Cassette 2 paper
(paper)
level sensor 1
25% (bit6=0; bit7=1)
PS6 (DC-CON)
A3-20-M
P014-7
50% (bit6=1; bit7=1)
Cassette 2 paper
100% (bit6=0; bit7=0)
level sensor 2
PS7 (DC-CON)
A3-20-M
P015-0
Cassette 1 re-try
1: present, 0: absent
(paper)
paper sensor
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