Epson 7000 service manual Paper Feed Assembly, PF Rail

EPSON Stylus Pro 7000 Revision B

2.2.2 Paper Feed Assembly

PF RAIL

The main paper feed components are the CR Guide Rail, the Grid Roller Assembly which is attached to the PF Rail, and the Secondary Roller Assembly which attaches to the back of the CR Guide Rail and faces the Grid Roller Assembly. The Grid Roller Assembly is made up of three equal lengths of rollers and their coupling.

The PF Motor is a DC Motor that is controlled by the software servo system, and the servo receives a pulse from the built-in optical rotary encoder. This rotary encoder allows for minute paper feeding.

The PF Roller torque is transferred through the PF Roller shaft edge (left frame), and turns the PF motor pinion gear and timing belt.

Secondary Roller

AssemblyCR Guide

Rail

Grid Roller

Assembly

Speed-

Reduction

Gear

PF Rail

Platen

Subplaten

Paper

Paper Guide,

Lower

PF Motor

Figure 2-11. Paper Feed Path

Operating Principles Description of Components 63