Epson 7600, 9600 service manual Paper Feed Assembly, Paper Feed Mechanism Unit 1/2

EPSON Stylus Pro 7600/9600 Revision A

2.2.2 Paper Feed Assembly

This printer uses friction feed to carry out highly precise feeding of roll paper and cut sheets, and comprises a unique paper feed mechanism.

The paper feed mechanism unit is configured from a grid roller (one piece construction), and pressurizing and follower roller assemblies mounted on the back of the CR guide rail opposite the front surface.

Secondary Roller Assembly

Grid Roller
	R = Paper width flag
	L = Paper Set Lever flag

†PF motor

The PF motor is a DC motor. The grid of the loop scale mounted on the Grid Roller is read by the PF_ENC sensor and the output pulse is fed back to control the motor. This feedback control ensures high printing accuracy.

Driving of the grid roller is accomplished by the PF motor via the PF timing belt which attaches to a reduction pulley that is connected to the grid roller.

Secondary Roller Assembly

Grid Roller

CR Guide Rail

PF Motor

Paper Set Lever

Figure 2-11. Paper Feed Mechanism Unit 1/2

Center Frame

Speed-Reduction Gear

Platen

Sub Platen

Paper

Paper Guide L1, L2

PF Motor

Figure 2-12. Paper Feed Mechanical Unit PF Rail Unit

Operating Principles Print Mechanism Components 113