Stylus Pro Service Manual
Operating Principles
2.1 OVERVIEW
This section describes the operating principles of the printer mechanism and the electrical circuits of the
Stylus Pro.
2.2 OPERATING PRINCIPLES OF THE PRINTER MECHANISM
2.2.1 Printer Mechanism
The Stylus Pro is based on the Stylus Color printer. The Stylus Pro printer mechanism is composed of the
printhead unit, paper feed mechanism, carriage drive mechanism, pump mechanism, and various sensors such
as the Stylus Color's. The figure below shows a functional block diagram of the printer mechanism.
Pickup Release Lever
Disengage Lever
Paper Feed Mechanism
ASF Mechanism
Pump Unit Drive Mechanism
Paper Feed Motor
Carriage Unit
Color
Black
Carriage Motor
Figure 2-1. Printer Mechanism Block
Rev.A
2-1