Epson DFX-9000 - Paper Feed Mechanism

Epson DFX-9000 Revision B
Operating Principles Printer mechanism 64
2.2.4 Paper feed mechanism
2.2.4.1 Tractor mechanism
The Line Feed (LF) motor drive system is a unipolar, constant current
drive.
The (LF) motor rotates the Drive (DV) roller and Pin belt tractor. The
LF motor drive is transmitted to the Front or Rear tractors and the Front
and Rear DV rollers as shown in the flow chart below.
Figure 2-7. Tractor Mechanism
LF Motor
Pulley Gear
Shift Gear
TR Gear 1
Front Tractor
TR Gear 2
RTR Intermediate
Gear
RTR Intermediate
Gear
TR Gear 3
Rear Tractor
DV Gear F
Nip Gear F
DV Roller F
DV Gear R1
DV Gear R2
Nip Gear R3
Nip Gear R4
DV Roller R
DV Gear R1
DV Roller R
LF Belt
RTR Intermediate
Gear
Left Side Frame
TR Gear 3
Tension Pulley
Nip Gear F
DV Roller F
DV Gear F
Tension
Pulley
TR Gear 2
Shift Gear
TR Gear 1
Pulley Gear
LF Motor
Nip Gear R3
DV Gear R2
Nip Gear R4
Right Side Frame