Service manual

DFX-5000+ Service Manual
Product Description
1.6.1 M-3CI 1 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:
U The DFX-5000+ includes a CR motor isolation resistance sensor.
Ll The DFX-5000+ includes a paper jam sensor.
Cl To prevent paper jams, the DFX-5000+ includes a tractor wire at the front and rear tractors.
U The DFX-5000+ does not include a carriage home position sensor.
LI 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.
Cl In the DFX-5000+, the angle between the printhead and the surface of the platen has been
changed to reduce noise.
El In the DFX-5000+, the ribbon guide is not attached to the ribbon mask; the ribbon mask is
attached to the pnnthead carriage.
Figure 1-27. M-3C11 Printer Mechanism
Rev. A
1-27