Epson Stylus CX4100 Service Manual page 61

EPSON Stylus CX4100/CX4200/CX4700/CX4800/DX4200/DX4800/DX4850
2.1 Overview
This section describes the operating principles of the Printer Mechanism, Scanner
Mechanism and Electrical Circuit Boards.
Main Board
C610 Main Board
Power Supply Board
C610 PSB/PSE Board
Panel Board
C571 PNL Board (Stylus CX4700/CX4800/DX4800/DX4850)
C577 PNL Board (CX4100/CX4200/DX4200)
I/F Board
C610 I/F Board
2.2 Printer Mechanism
2.2.1 Printer Mechanism
This printer consists of the Print Head, Carriage Mechanism, Paper Loading
Mechanism, Paper Feeding Mechanism, Ink System.
Like the previous printers, Stylus CX4100/CX4200/CX4700/CX4800/DX4200/
DX4800/DX4850 is equipped with two DC motors; one for the Paper Loading/Feeding
Mechanism and the Pump Mechanism with the CR Lock Mechanism, and one for the
CR Mechanism. The ASF Unit for the Paper Loading Mechanism uses rear entry front
eject system. The Paper Feeding Mechanism uses the LD Roller and Retard Roller to
feed paper to the Printer Mechanism in the same way as previous printers.
OPERATING PRINCIPLES
PF Encoder Sensor
PG Sensor
PF Roller
Star Wheel
PW Sensor
Carriage Unit
EJ Roller
Change lever
Cap Unit
Figure 2-1. Printer Mechanism block diagram
Overview
Revision A
PF Scale
CR Motor
PF Motor
Timing Belt
CR Encoder
Sensor
LD Roller
Retard Roller
Compression
Spring
PE Sensor
Clutch mechanism
Pump Unit
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