M-3C11 Printer Mechanism - Epson DFX-5000+ Service Manual

M-3C11 Printer Mechanism

The M-3C11 printer mechanism is a 9-pin, serial, dot matrix printer mechanism
developed for the DFX-5000+. It is designed to provide high-speed, high-volume
printing, and is especially heavy and durable when compared with existing
terminal printer mechanisms. Its paper feeding mechanism uses fanfold paper,
and an automatic mechanism is included to provide enhanced paper handling.
The structural differences between the DFX-5000+ and the DFX-5000 are:
The DFX-5000+ includes a CR motor isolation resistance sensor.
The DFX-5000+ includes a paper jam sensor
To prevent paper jams, the DFX-5000+ includes a tractor wire at the front and
rear tractors.
The DFX-5000+ does not include a carriage home position sensor
The detection method of the carriage encoder sensor has been changed. In the
DFX-5000, the encoder plate was attached to the rotor of the CR motor, while
the DFX-5000+ uses a belt-type encoder.
In the DFX-5000+, the angle between the printhead and the surface of the
platen has been changed to reduce noise.
In the DFX-5000+, the ribbon guide is not attached to the ribbon mask; the
ribbon mask is attached to the printhead carriage.
EPSON DFX-5000+ Service Manual
Figure 1-27. M-3C11 Printer Mechanism
Product Description
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