EPSON Stylus COLOR 1520
Rev. A
1-20
1.3.4 Prevention Hosts from Data Transfer Time-out
Generally, hosts abandon data transfer to peripherals when a peripheral is in the busy state for dozens of
seconds continuously. To prevent hosts from this kind of time-out, the printer receives data very slowly,
several bytes par minute, even the printer is in busy state. This slowdown starts when the rest of input
buffer drops under several hundreds of bytes. Finally, the printer is in the busy state continuously when
the input buffer is full.
1.3.5 Interface Selection
The EPSON Stylus COLOR 1520 has three types of interface available :Parallel, Serial, and optional
interfaces. Each interface can be selected manually or automatically. Both modes are selected thorough
the default setting mode.
Manual selection
The interface selected through the default setting mode always prints out data from the host.
Automatic selection
When the printer is in this mode, the printer is initialized to the idle state when it is turned on. Then
the interface that receives data first will print. When the host stops data transfer and the printer is in
the stand-by state for the specific time, the printer returns to the idle state. As long as the host sends
data or the printer interface is buy state, the selected interface remains active.
Interface State and Interface Selection
When the parallel interface is not selected, the interface goes into the busy state. When the serial
interface is not selected, the interface sets the DTR signal MARK. When the printer is initialized or
returned to the idle state, the parallel interface goes into the ready state and the serial interface sets the
DTR signal SPACE. Caution that the interrupt signal such as the /INIT signal on the parallel interface is
not effective while that interface is not selected.
1.3.6 Printer language and Control Codes
Printer languages and control codes
:ESC/PC
:IBM X24E
:EPSON Remote
Summary of Contents for 1520 - Stylus Color Inkjet Printer
Page 138: ...Maintenance Rev A 6 5 8 9 10 10 10 10 10 10 10 10 Figure 6 2 Lubrication Points 2 ...
Page 146: ...Appendix Rev A A 7 A 2 Circuit Diagrams Figure A A 2 C211 MAIN B Board Circuit Diagram 1 2 ...
Page 147: ...EPSON Stylus COLOR 1520 Rev A A 8 ...
Page 148: ...Appendix Rev A A 9 Figure A A 3 C211 MAIN B Board Circuit Diagram 2 2 ...
Page 149: ...EPSON Stylus COLOR 1520 Rev A A 10 ...
Page 152: ...Appendix Rev A A 13 A 3 Component Layout Figure A A 6 C211 MAIN B Board Component Layout ...
Page 153: ...EPSON Stylus COLOR 1520 Rev A A 14 Figure A A 7 C172 PSB Board Component Layout ...
Page 154: ...Appendix Rev A A 15 Figure A A 8 C172 PSE Board Component Layout ...
Page 156: ...Appendix Rev A A 17 Figure A A 10 Stylus COLOR 1520 Exploded Diagram 2 ...
Page 157: ...EPSON Stylus COLOR 1520 Rev A A 18 Figure A A 11 Stylus Color 1520 Exploded Diagram 3 ...
Page 165: ...EPSON SEIKO EPSON CORPORATION ...
