Epson Perfection V500 Photo - TPU Carriage Unit Outline; TPU Carriage Drive Mechanism Operation

EPSON Perfection V500 Photo Revision A
OPERATING PRINCIPLES Engine Operation Outline 21
2.1.3 TPU Carriage Unit Outline
The TPU Carriage Unit consists of the LM-B Board and SUB-C Board. (Refer to
Fugure 2-5.)
Figure 2-5. TPU Carriage Unit Configuration
LM-B Board/SUB-C Board: each contain LEDs to generate visible and infrared light.
2.1.4 TPU Carriage Drive Mechanism Operation
The TPU Carriage Unit slides along the guide shaft in the secondary scanning direction
as the TPU CR (Carriage) Motor transmits its drive power to the TPU CR Timing Belt
connected to the TPU Carriage Unit, via the Idle Pulley and Drive Pulley. (Refer to
Fugure 2-6.) The TPU CR Motor uses a stepper motor and is driven under open loop
control.
Figure 2-6. TPU Carriage Operation
SUB-C Board
LM-B Board
Rear
Front
Front
Rear
Drive Pulley Idle Pulley
TPU CR Timing Belt TPU Carriage Unit