DLQ-3000+
Rev. A
1-28
1.4 Interfaces
The EPSON DLQ-3000+ is equipped with the parallel and Mac serial interfaces and a card
slot for an optional Type-B interface. This section provides information on each interface.
1.4.1 Parallel Interface
Forward Channel
Transmission mode
8 bit parallel, IEEE-1284 compatibility mode
Synchronization
By /STROBE pulse
Handshaking
By /BUSY and /ACKNLG signal
Signal level
TTL compatible (IEEE-1284 level 1 device)
Adaptable connector
57-30360 (Amphenol) or equivalent
Table 1-23. Signal level of TTL Compatible (IEEE-1284 level 1 device)
Parameter
Minimum
Maximum
Condition
VOH*
-
5.5 V
VOL*
-0.5 V
-
IOH*
-
0.32 mA
VOH = 2.4 V
IOL*
-
12 mA
VOL = 0.4 V
CO
-
50 pf
VIH
-
2.0 V
VIL
0.8 V
-
IIH
-
0.32 mA
VIH = 2.0 V
IIL
-
12 mA
VIL = 0.8 V
CI
-
50 pf
A LOW logic level on the Logic H signal is as follows:
2.0 V or less when the printer is powered off.
3.0 V or more when the printer is powered on.
The receiver provides an impedance equivalent to 7.5 K ohms to ground.
The BUSY signal is HIGH in the following cases:
During data entry
When the input data buffer is full.
While /INIT signal is at low level
During hardware initialization
During the signal /ERROR or PE is LOW or HIGH, respectively.
During the self-test printing mode.
During the default setting mode.
During the adjustment mode.
The /ERROR signal is LOW when one of the following errors has occurred:
Printer hardware error (fatal error)
Paper-out error
The PE signal is HIGH when the following error has occurred:
Paper-out error
Содержание DLQ-3000+
Страница 1: ...EPSON EPSON EPSON France S A SERVICE MANUAL DLQ 3000 PRODUIT ...
Страница 2: ...EPSON 24 PIN DOT MATRIX PRINTER EPSON DLQ 3000 SERVICE MANUAL SEIKO EPSON CORPORATION 4008259 ...
Страница 6: ...v REVISION SHEET Revision Issued Data Contents Rev A August 21 1997 First Release ...
Страница 62: ...2 3 12 Other Sensor Circuits 2 30 ...
Страница 160: ...Chapter 6 Maintenance 6 1 Maintenance 6 1 6 1 1 Lubrication and Adhesion 6 1 ...
Страница 171: ...DLQ 3000 Rev A A 6 ...
Страница 172: ...Appendix Rev A A 7 A 2 Circuit Diagrams Figure A 2 C210 MAIN Board Circuit Diagram 1 2 ...
Страница 173: ...DLQ 3000 Rev A A 8 ...
Страница 174: ...Appendix Rev A A 9 Figure A 3 C210 MAIN Board Circuit Diagram 2 2 ...
Страница 175: ...DLQ 3000 Rev A A 10 ...
Страница 177: ...DLQ 3000 Rev A A 12 Figure A 5 C124 PSB Board Circuit Diagram ...
Страница 179: ...DLQ 3000 Rev A A 14 A 3 Circuit Board Component Layout Figure A 7 C210 MAIN Board Component Layout 1 2 ...
Страница 180: ...Appendix Rev A A 15 Figure A 8 C210 MAIN Board Component Layout 2 2 ...
Страница 181: ...DLQ 3000 Rev A A 16 Figure A 9 C124 PSB Board Component Layout ...
Страница 182: ...Appendix Rev A A 17 Figure A 10 C124 PSE Board Component Layout ...
Страница 189: ...EPSON SEIKO EPSON CORPORATION ...
Страница 254: ...PC 437 USA Europe standard Annexe A 27 ...
Страница 255: ...PC 850 Multilingue PC 860 Portugais PC 863 Français canadien PC 865 Norvégien A 28 Annexe ...
Страница 256: ...PC861 Islandais BRASCII Portugais brésilien Abicomp Portugais brésilien Annexe A 29 ...
Страница 259: ...A 32 Annexe ...
Страница 262: ...Utilisation du sommaire des commandes A 10 V Vitesse 2 25 W Windows Microsoft 1 17 18 Index 3 ...