II-6
3. Transfer
stage
Step 4 Transfer (+)
Step 5 Separation
4. Fixing
stage
Step 6 Fixing
5.
Drum cleaning stage
Step 7 Drum cleaning
Electrostatic latent image
formation stage
Transfer stage
Fixing stage
Drum cleaning stage
Developing stage
Paper path
Direction of drum rotation
2. Scanning exposure
1. Primary charge
7. Drum cleaning
Print delivery
6. Fixing
5. Separa-
tion
4. Transfer
Registration
Multi-purpose tray feed
Cassette feed
3. Develop
ment
Figure 2.7
3.2.1 Electrostatic latent image formation stage
This stage has two steps, which together produce a pattern of electrical charges on the
photosensitive drum.
At the end of the stage, negative charges remain in the unexposed “dark” area. Charges
are absent from the “light” areas, where the laser beam struck (exposed) the drum
surface.
Since this image of negative charges on the drum is invisible to the eye, it is called an
“electrostatic latent image”.
Time (t)
0
-100
Exposed
area
Unexposed
area
Primary
charge
(step 1)
Scanning
exposure
(step 2)
Primary
charge
(step 1)
Transfer
(step 4)
Surface potential (V)
-500
Figure 2.8
Содержание 2060
Страница 1: ...MECHANICS ELECTRONICS SERVICE MANUAL LASER PRINTER ...
Страница 41: ...III 8 A B F C D E 1 E 2 E 3 E 4 E 5 F Figure 3 7 Paper Feed Size SW PCB Circuit ...
Страница 130: ...VII 16 Test for memory MEMORY DISPLAY MEMORY DEBUG MEMORY TEST exit MENU ...
Страница 137: ...Appendix A 2 Paper Feed Size SW PCB Circuitry Diagram 1 1 CODE UK4067000 B512011 012 CIR NAME A 2 ...
Страница 138: ...Appendix A 3 Main PCB Circuitry Diagram 1 7 CODE UK4058000 B512006 CIR 1 7 NAME A 3 ...
Страница 139: ...Appendix A 4 Main PCB Circuitry Diagram 2 7 CODE UK4058000 B512006 CIR 2 7 NAME A 4 ...
Страница 140: ...Appendix A 5 Main PCB Circuitry Diagram 3 7 CODE UK4058000 B512006 CIR 3 7 NAME A 5 ...
Страница 141: ...Appendix A 6 Main PCB Circuitry Diagram 4 7 CODE UK4058000 B512006 CIR 4 7 NAME A 6 ...
Страница 142: ...Appendix A 7 Main PCB Circuitry Diagram 5 7 CODE UK4058000 B512006 CIR 5 7 NAME A 7 ...
Страница 143: ...Appendix A 8 Main PCB Circuitry Diagram 6 7 CODE UK4058000 B512006 CIR 6 7 NAME A 8 ...
Страница 144: ...Appendix A 9 Main PCB Circuitry Diagram 7 7 CODE UK4058000 B512006 CIR 7 7 NAME A 9 ...
Страница 145: ...Appendix A 10 Control Panel PCB Circuitry Diagram 1 1 CODE UK4077000 B512005 CIR NAME A 10 ...
Страница 146: ...Appendix A 11 Laser LD PCB Circuitry Diagram 1 1 CODE UK3253000 B48K253 CIR NAME A 11 ...
Страница 148: ...June 98 54T046NE0 HL2060 ...
Страница 149: ...LASER PRINTER PARTS REFERENCE LIST HL 2060 ...
Страница 160: ...8 CHASSIS MODEL HL 2060 54T U04 500 4 3 10 5 7 7 7 8 6 9 20 12 11 13 18 18 14 15 16 17 18 18 1 2 19 9 ...
Страница 168: ...14 PACKING MATERIALS MODEL HL 2040 54T U04 930 2 2 3 9 6 7 5 8 10 1 11 4 17 ...
Страница 171: ......