M-3I60 Printer Mechanism - Epson DFX-8500 Service Manual

M-3I60 PRINTER MECHANISM

The M-3I60 printer mechanism is an 18-pin (in two rows of 9 pins), serial impact dot matrix printer
mechanism developed for the DFX-8500. It is designed to provide high-speed, high-volume printing, and is
especially heavy and durable. The paper feeding mechanism accepts several kinds of fan-fold paper. An
automatic mechanism is included to provide enhanced paper handling.
The structural differences between the DFX-8500 and the DFX-8000 are:


The DFX-8500 includes a carriage motor isolation resistance sensor.


The DFX-8500 includes a paper jam sensor.


The DFX-8500 includes a ribbon sensor.


The DFX-8500 includes a tractor wire at the front and rear tractors to prevent paper jams.


The detection method of the carriage encoder sensor differs from previous printers. In the
DFX-8000, the encoder plate was attached to the rotor of the carriage motor, while the DFX-8500
uses a belt-type encoder.


The DFX-8500 does not include a carriage home position sensor.
Figure 1-24. M-3I60 Printer Mechanism
PRODUCT DESCRIPTION
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