Step 2: Laser beam exposure
Figure 2-4-7
When the laser beam scans the drum surface, it causes the charges in the area struck by the
laser beam to be neutralized. These areas on the drum surface form the electrostatic latent
image.
2. Developing block
Toner particles are placed onto the electrostatic latent image on the drum surface to form a vis-
ible image. This printer uses the toner projection development method with a single-component
toner.
Step 3: Developing
Figure 2-4-8
Note:
Charges in the exposed areas of the photosensitive drum are shown as positive in the
figure, even though they are actually negative. It means that the photosensitive drum
potential is higher as compared with that of the cylinder.
CHAPTER 2
2 - 28
Laser beam
Unexposed area
Exposed area
Blade
Stirrer
AC bias
DC bias
Photo-
sensitive
drum
Developing cylinder
Cylinder
Magnet
Содержание LBP-1000
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Страница 106: ...VI SOLENOIDS A Locations Multi purpose tray pick up solenoid Cassette pick up solenoid Figure 3 6 1 CHAPTER 3 3 19 ...
Страница 108: ...VII MOTOR FAN A Locations Main motor Cooling fan Figure 3 7 1 CHAPTER 3 3 21 ...
Страница 145: ...4 Defective engine controller PCB Action Replace the engine controller PCB CHAPTER 4 4 25 ...
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Страница 155: ...F Special Tools No special tools are required for this printer besides the standard tools CHAPTER 4 4 35 ...
Страница 158: ...Figure 4 9 2 CHAPTER 4 4 38 J1005 J1009 J1006 J2 J1 J3 J9 J1705 J1706 J403 J2 J801 J10 ...
Страница 159: ...Figure 4 9 3 CHAPTER 4 4 39 J2003 J2002 J2001 J2131 J2132 J2130 J2110 ...
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Страница 161: ...APPENDIX I GENERAL TIMING CHART A 1 II GENERAL CIRCUIT DIAGRAM A 3 III LIST OF SIGNALS A 5 IV MESSAGES TABLE A 11 ...
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