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Epson LX-300+ Service Manual

Epson LX-300+
129 pages
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LX-300+/1170 Revision C
Troubleshooting
T
roubleshooting 68
3.2.4.4 Printhead Driver Check
Simple check of the printer driver (Q3 ~ Q11) can be done by the following method.
Table 3-13. Printhead Driver Check
Item Operation Specification
Printer driver
 
1. Set the multimeter to the resistance
measuring range.
2. Connect the one side of the probe to the
base of the transistor.
3. Connect the one side of the probe to
emitter of the transistor.
The resistance
should NOT be “0”
or infinity.

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Epson LX-300+ Specifications

General IconGeneral
EmulationEpson ESC/P, IBM PPDS
Print Method9-pin, impact dot matrix
InterfaceParallel
Paper HandlingFriction feed
Dimensions366 x 275 x 159 mm
Paper Width4 - 10 inches

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