Overview; Printer Mechanism - Epson Stylus Color C70 Service Manual

EPSON Stylus COLOR C70/C80

2.1 Overview

This section describes the operating principles of the printer mechanism and electrical
circuit boards. The Stylus COLOR C70/C80 has the following boards:
Main board: C424 MAIN-B
NOTE: There is no part with the name C424 Main in current products. The C424
Main-B board in the Stylus C70 and C80 has a different name, and so is
not exactly the same part. The parts code for ordering is also different.
Power supply board: C424 PSB/PSE

2.1.1 Printer Mechanism

The printer mechanism for Stylus COLOR C70/C80 is designed newly. But, the basic
component of the printer mechanism is same as previous product.
This printer consists of Print Head, Carriage Mechanism, Paper Feeding Mechanism,
Paper Loading Mechanism, Ink System (Pump Mechanism, Cap Mechanism, and
Carriage Lock Mechanism).
Like other EPSON ink jet printers, the Stylus COLOR C70/C80 is equipped with two
DC motors; one for ASF, Paper feeding/ Pump mechanism, and one for CR
mechanism. ASF unit uses rear entry front eject system. This ASF unit is also designed
newly and LD roller loads the paper to the printer mechanism.
For cap assembly, Stylus COLOR C70/C80 uses valveless mechanism; new design for
this model.
Operating Principles
PF Encoder
PF Timing Belt
PF Motor
CR unit
CR lock Lever
Paper Eject Roller
Pump Assembly
Figure 2-1. Printer Mechanism block diagram
Overview
PF Roller
CR Motor
Rotary Scale
Clutch mechanism
CR Timing belt
Linear Scale
CR Encoder
LD Roller
Paper Back Lever
Paper separation pad
ASF Hopper Spring
PE Actuator
Silence Cam
Cap Assembly
Revision A
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