Ricoh Aficio SP 5100N, Service Manual

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System Layout
G186 6-6 SM
the laser beam, exposing the OPC drum, and the turning principle of the polygon mirror.
The OPC drum is turned at the same speed as the paper feed speed. The /HSYNC signal
is created when the laser beam from LSU (Laser Scanning Unit) reaches the end of the
polygon mirror, and the signal is sent to the controller. The controller detects the /HSYNC
signal to adjust the vertical line of the image on paper. In other words, after the /HSYNC
signal is detected, the image data is sent to the LSU to adjust the left margin on the paper.
One side of the polygon mirror is one line for scanning.
6.2.6 PRINT CARTRIDGE
The electronic photo process creates a visual image. In the print cartridge, the OPC unit
and the toner cartridge unit are in a unit. The OPC unit consists of the OPC drum and
charging roller, and the toner cartridge unit consists of the toner, supply roller, developing
roller, and blade.
ƒ Developing Method: Non-contact method
ƒ Toner: Non magnetic, one component pulverized type toner
ƒ Toner life span: 150 K (LSA Pattern/A4 standard)
ƒ Remaining Toner Sensor: Yes
ƒ
OPC Cleaning: Cleaning blade type
ƒ Management of waste toner: Toner collection by Cleaning Blade
ƒ OPC Drum protecting Shutter: Yes
ƒ Classifying device for toner cartridge