
Operating Principles
Rev. A
2-33
CSF sensor
CSF sensor uses terminals for the CSF paper quantity sensor. The output signal for this
sensor is pulled up to 10K
Ω
, then input to the CPU via the filter circuit which consists of
the resistor and the condenser.
Table 2-28. CSF Sensor Switch Mode
Switch mode
CSF installed:
LOW
No CSF installed:
HIGH
CSF paper quantity sensor
CSF sensor, a potentiometer, is not attached to the printer but to the CSF. It monitors
paper quantity in the hopper and send the analog signal to the internal A/D converter of
the CPU.
PGHP (Platen Gap Home Position) sensor
The output signal for this sensor is pulled up to 390
Ω
, then input to the CPU port via the
filter circuit which consists of the resistor and the condenser.
Table 2-29. PGHP Sensor Specification
Detecting method
Micro switch system
Power supply voltage
5 VDC
±
5%
Switch mode
In the home position: LOW
Off the home position :HIGH
Содержание DLQ-3000 Minerva+
Страница 1: ...EPSON 24 PIN DOT MATRIX PRINTER EPSON DLQ 3000 SERVICE MANUAL SEIKO EPSON CORPORATION 4008259 ...
Страница 5: ...v REVISION SHEET Revision Issued Data Contents Rev A August 21 1997 First Release ...
Страница 61: ...2 3 12 Other Sensor Circuits 2 31 ...
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 ...