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Chapter 2
2-9
F-2-9
Step 2: Primary charging
As a preparation for the latent image formation, the surface of the photosensitive drum is charged with a uniform negative potential in this step.
The charging method of this printer is to charge directly to the photosensitive drum surface from the primary charging roller, which is interlocked with the drum.
The primary charging roller is made of a conductive rubber. To charge the drum surface negative, the high-voltage DC bias is applied to the primary charging roller.
F-2-10
Step 3: Laser beam exposure
The latent image is formed on the photosensitive drum by the laser beam in this step.
As the laser beam scans on the negative charged photosensitive drum, the potential on the exposed area is neutralized and the negative potential is removed from
the drum surface. This area forms an electrostatic latent image.
F-2-11
2.4.1.4 Development block
0013-7406
/ i-SENSYS LBP5360 / i-SENSYS LBP5300
The electrostatic latent image on the photosensitive drum surface is visualized by applying toner in this block. This printer utilizes the contact development method,
that keeps the developing roller touching the photosensitive drum. On the other hand, there is a flexible developing blade that gently touches the developing roller
surface where toner is uniformly sticking around the roller.
The toner (developing material) used in this printer is a non-magnetic single-component toner, composed of resins, etc.
Step 4: Development
The toner is adhered along the electrostatic latent image on the photosensitive drum surface by the contact development method in this step.
The toner (developing material) is non-magnetic single component type and is charged negative by the friction caused by the rotating developing roller against the
developing blade.
This negative charged toner contacts with the photosensitive drum. As the area of the drum surface where the laser beam exposed has higher potential than the
developing roller, the negative charged toner transfers to this higher potential area. Thus the latent image is finally visualized.
Photosensitive drum
LED
DC bias
Photosensitive drum
Primary charging roller
Laser beam
Unexposed area
Exposed area
Summary of Contents for i-SENSYS LBP5300 Series
Page 1: ...Feb 27 2007 Service Manual i SENSYS LBP5300 Series ...
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Page 13: ...Chapter 1 PRODUCT DESCRIPTION ...
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Page 33: ...Chapter 2 TECHNICAL REFERENCE ...
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Page 81: ...Chapter 3 DISASSEMBLY AND ASSEMBLY ...
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Page 116: ...Chapter 3 3 30 11 Remove the fixing motor 1 2 screws 2 F 3 226 ...
Page 117: ...Chapter 4 MAINTENANCE AND INSPECTION ...
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Page 123: ...Chapter 5 TROUBLESHOOTING ...
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