Epson 1250 - Perfection Photo Flatbed Scanner Service Manual Page 17

  • Download
  • Add to my manuals
  • Print
  • Page
    / 58
  • Table of contents
  • TROUBLESHOOTING
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 16
EPSON Perfection 1250/1250 PHOTO Technical Overview
17
2.1 Basic Operation
This chapter describes the basic operation of the Perfection 1250/1250
PHOTO engine.
2.1.1 Carriage Assembly
The carriage assembly consists of a CCD sensor circuit board, an inverter
circuit board, a lamp (light source), and a mirror and lens mechanism.
Figure 2-1. Carriage Assembly Structure
#
CCD sensor circuit board
This board consists of color CCD line sensors (independent R, G and B)
and circuits for controlling them.
#
Inverter circuit board
This board boosts the power supply voltage to +24 V DC and converts it
from direct current to alternating current in order to drive the lamp (cold-
cathode fluorescent lamp).
#
Lamp
A cold-cathode fluorescent lamp is used as the light source.
#
Mirror and lens mechanism
The light that illuminates the document being scanned is reflected to the
mirror and lens mechanism inside the carriage unit. The CCD sensor
separates R, G and B components.
Figure 2-2. Mirror and Lens Mechanism
Lamp
Rear
Inverter circuit board
CCD sensor
CCD sensor circuit board
Front
Front
Rear
Scanning
direction
Document
Lamp
Lens
CCD sensor
CCD
Mirror 1
Mirror 2
Mirror 3
Mirror 4
Page view 16
1 ... 16 17 18 ... 58

Comments to this Manuals

No comments