Epson DFX-9000 Revision B
Operating Principles Overview 57
2.1.1 Part names
Some of the part names used in the DFX-9000 differ from part names
traditionally used in Epson printers. The table below provides part name
definitions.
Table 2-1. Part name definitions
DFX-9000
Traditional
Epson
Definition
Carrier Unit Carriage Unit The mechanism that transports the
Printhead across the page during
printing.
SP Motor CR Motor,
Carriage Motor
The motor that supplies force to the
SP Belt, moving the Carrier.
CR Motor
Driver
The circuit that supplies control
and power to the SP Motor.
SP Belt CR Belt The drive belt that moves the
Carrier.
LF Motor
LF Belt
PF Motor
PF Belt
Paper feed motor.
Paper feed drive belt.
APTC
APTC Motor
Platen gap
adjustment
mechanism
APTC: Automatic Paper Thickness
Control.
HCPP
(motor,
sensor, etc.)
Tractor select
mechanism
Host Computer-controlled Paper
Path (HCPP): The paper-path
(front/rear) switching mechanism,
controllable through the print
driver and application software.
OC Motor The Open/Close motor moves the
rollers to clamp the paper in place
during printing, and releases the
paper during paper eject. Paper is
clamped between the Nip rollers
and DV rollers.
PR MECHA
ASY
Printer
Mechanism
The printer mechanism.
Table 2-1. Part name definitions (continued)
DFX-9000
Traditional
Epson
Definition
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