2A3/4
1-3-24
The dimensions of the laser beam are as shown in Figure 1-3-19.
65
µ
m
70
µ
m
Figure 1-3-21
Scanning in the main direction is provided by the rotating polygon mirror, while scanning
in the auxiliary direction is provided by the rotating drum, forming a static latent image
on the drum.
The static latent image of the letter “A”, for example, is formed on the drum surface as
shown in Figure 1-3-22. Electrical charge is dissipated on the area of the drum surface
irradiated by the laser.
The focal point of the laser beam is moved line by line, and adjacent lines slightly
overlap each other.
Main
scanning
direction
Auxilary
scanning
direction
: laser beam is on
Figure 1-3-22
Summary of Contents for Ri 4230
Page 3: ...SERVICE MANUAL Ri 4230 5230 ...
Page 13: ...4230 5230 S M MCA THEORY AND CONSTRUCTION SECTION I I Theory and Construction Section ...
Page 14: ...1 1 5 2A3 4 CONTENTS 1 1 Specifications 1 1 1 Specifications 1 1 1 ...
Page 100: ...4230 5230 S M MCA ELECTRICAL SECTION II II Electrical Section ...
Page 119: ......
Page 138: ......
Page 159: ...4230 5230 S M MCA III Set Up and Adjustment Section III SET UP AND ADJUSTMENT SECTION ...
Page 448: ...2A3 4 3 6 3 25 Toner scatters at the leading edge of the image See page 3 6 17 ...