Table A (Signals used in the FAX PWB)
PIN No.
(CN5)
Signal
name
IN/OUT
Descriptions
3
/SCLINE
OUT
Effective input image area
6
FTXD
OUT
Serial communication data
7
/FRTS
OUT
Serial reception ready
(Machine side)
12
/F-RESET
OUT
Reset signal
13
/HSYNC
OUT
Horizontal sync signal
14
∼
21,
44
∼
51
OUTD1
∼
OUTD15
OUT
Data to the expanded PWB
24
/FAXREQ
OUT
Data transfer REQ signal
25
/FAXCS
IN
OUTD bus enable signal
33
/PRLINE
OUT
Effective print area
34
/FPAGE
IN
Page data READY
35
/FREADY
IN
FAX PWB recognition signal
36
/READY
OUT
READY signal on the
machine side
37
FRXD
IN
Serial communication data
38
/FCTS
IN
Serial reception READY
(FAX side)
43
/POFF
OUT
Power OFF signal
54
/FAXPRD
IN
Video data from FAX PWB
55
/FAXACK
IN
Data transfer ACK signal
Table B (Signals used in PCL PWB)
PIN No.
(CN5)
Signal
name
IN/OUT
Descriptions
5
/PREADY
IN
PCL PWB recognition signal
6
FTXD
OUT
Serial communication data
7
/FRTS
OUT
Serial reception READY
(Machine side)
12
/F-RESET
OUT
Reset signal
13
/HSYNC
OUT
Horizontal sync signal
34
/FPAGE
IN
Page data READY
36
/READY
OUT
READY signal on the
machine side
37
FRXD
IN
Serial communication data
38
/FCTS
IN
Serial reception READY
(PCL side)
52
/PCLPRD
IN
Video data from PCL PWB
(4) 1284/USB circuit select control section
The GDI/USB PWB is connected to CN15 connector to control switch-
ing between IEEE1284 port and USB port.
If USB cable isn’t connected to the GDI/USB PWB, the /1284-EN signal
becomes LOW to allow the user of IEEE1284 port.
If USB cable is connected, the /USB-EN signal becomes LOW to allow
the use of USB port.
Since USB has priority, when USB cable is connected, it is selected.
That is, when USB cable is connected, IEEE1284 port (parallel port) is
disabled.
USB-IN
/1284-EN
USB-ON
/USB-EN
/GDI-IN
/ACK
PARAAD5
SLCT
PARAAD6
PARAAD7
/STB
PARAAD1
/REV
PARAAD3
PARAAD0
INIT
BUSY
/SLCTIN
/AUTOFD
PE
/FAULT
PARAAD2
PARAAD4
3.3V
5V
31FT-BT-VK-N
CN15
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
(5-A3)
(5-A3)
(1-B1)
(5-A3)
(5-D3)
(5-D2)
(5-D3)
(5-D3)
(2-D3)
(5-D2)
(5-D3)
(5-D3)
(5-D2)
(5-D3)
(5-D2)
(5-D3)
(5-D3)
(5-D2)
(5-D3)
(5-D3)
(5-D2)
(5-D2)
(5-D2)
GDI/USB CN
AR-F152
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