Epson DFX-9000
Revision B
Product Description
Basic specifications
25
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
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
Table 1-20. Connector pin assignment, forward channel
Pin No.
Signal
name
Return
GND Pin
In/Out*
Function description
1
-STROBE
19
In
This signal is a strobe pulse. Input data is latched at the falling edge of this signal.
2
DATA1
20
In
Parallel input data to the printer
bit 0: LSB
3
DATA2
21
In
bit 1
4
DATA3
22
In
bit 2
5
DATA4
23
In
bit 3
6
DATA5
24
In
bit 4
7
DATA6
25
In
bit 5
8
DATA7
26
In
bit 6
9
DATA8
27
In
bit 7: MSB
10
-ACKNLG 28
Out
This signal (negative pulse) indicates that the printer has received data and is
ready to accept more.
Содержание DFX-9000
Страница 1: ...EPSONDFX 9000 Serial Impact Dot Matrix Printer SEDM04003 SERVICE MANUAL ...
Страница 8: ...C H A P T E R 1 PRODUCT DESCRIPTION ...
Страница 61: ...Epson DFX 9000 Revision B Product Description Dimensions and weight 54 ...
Страница 62: ...C H A P T E R 2 OPERATING PRINCIPLES ...
Страница 99: ...Epson DFX 9000 Revision B Operating Principles Circuit operation 92 ...
Страница 100: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 103: ...Epson DFX 9000 Revision B Troubleshooting Overview 96 3 1 3 Power on initialization sequence Main ...
Страница 104: ...Epson DFX 9000 Revision B Troubleshooting Overview 97 Mechanism initialization e e e e e ...
Страница 107: ...Epson DFX 9000 Revision B Troubleshooting Overview 100 PAPER FEEDING FF APG APPROACH ...
Страница 130: ...C H A P T E R 4 DISASSEMBLY AND ASSEMBLY ...
Страница 217: ...Epson DFX 9000 Revision B Disassembly and Assembly PULL TRACTOR UNIT L PULL TRACTOR UNIT R 210 ...
Страница 218: ...C H A P T E R 5 ADJUSTMENT ...
Страница 263: ...Epson DFX 9000 Revision B Adjustment Additional functions 256 ...
Страница 264: ...C H A P T E R 6 MAINTENANCE ...
Страница 286: ...C H A P T E R 7 APPENDIX ...
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Страница 324: ...EPSON DFX 9000 Revision B Appendix Component Layout 317 7 4 Component Layout ...
Страница 333: ...EPSON DFX 9000 Revision B Appendix Parts list 326 ...