Epson DFX-9000 Service Manual page 32

Epson DFX-9000
The BUSY signal is active (high) under the following conditions:
When receiving data
When the input buffer is full
When the -INIT signal is active (low)
During hardware initialization
When the -ERROR or PE signal is active (active-low and active-
high, respectively)
In self test mode
In adjustment mode
In default-setting mode
Signal Return
Pin No.
name GND Pin
1 -STROBE 19
2 DATA1 20
3 DATA2 21
4 DATA3 22
5 DATA4 23
6 DATA5 24
7 DATA6 25
8 DATA7 26
9 DATA8 27
10 -ACKNLG 28
Product Description
Table 1-20. Connector pin assignment, forward channel
In/Out* Function description
In This signal is a strobe pulse. Input data is latched at the falling edge of this signal.
In Parallel input data to the printer
In
In
In
In
In
In
In
Out This signal (negative pulse) indicates that the printer has received data and is
ready to accept more.
The -ERROR signal is active (low) under the following conditions:
When there is a printer hardware error (fatal error)
When there is a paper-out error
When there is a cover open error
When there is a paper jam error
When there is a ribbon out error
When there is an incomplete paper change error
The PE signal is active (high) when there is a paper-out error
Basic specifications
bit 0: LSB
bit 1
bit 2
bit 3
bit 4
bit 5
bit 6
bit 7: MSB
Revision B
25