General Description Of Each Section; Paper Feed Section; Printhead Unit (Exposure Section); Imaging Cartridge (Charging, Development Section) - Lexmark Optra W810 Service Manual

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General Description of Each Section

Paper Feed Section

Paper feeds from tray 1 (1st paper cassette), tray 2 or 3 (500-sheet
paper cassette). When the printer receives a print command, the
transport motor M2 turns, paper take-up solenoid turns ON, and the
paper take-up roller in the 1st paper cassette feeds a sheet of paper.
The synchronizing roller sensor (PC2) detects the fed paper and the
paper is then fed to the synchronizing roller for printing. When paper
trays (500-sheet cassette (tray 2 or 3), 250-sheet universal cassette
(tray 1)), or 2500-sheet drawer is installed, paper feeds from the
respective paper source.

Printhead Unit (Exposure Section)

The laser diode in the printhead unit emits a laser beam. The
scanning beam creates an electrostatic latent image on the surface
of the PC drum in the imaging cartridge.

Imaging Cartridge (Charging, Development Section)

The imaging cartridge consists of the charging section and
development section. The I/C drive motor (M1) drives the moving
parts of the imaging cartridge.

Image Transfer Section (Release Section)

The toner image on the PC drum transfers to the paper when
passing over the transfer roll. The paper electrostatically releases
from the PC drum.

Fusing Section

Using a heated roller, the fusing section permanently fixes the toner
image onto the paper. A heat sensitive element (thermistor) attached
to the upper fusing roller controls the fusing temperature.

Cleaning Section

The cleaning blade removes excess toner from the paper and
transfers the toner to the waste toner box.
General Information
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