Development; Toner Empty / Toner Cartridge Detection - Lexmark Optra SC 1275 Service Manual
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Also See for Optra SC 1275:
- Service manual (210 pages) ,
- Manual (154 pages) ,
- Label manual (123 pages)
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Development
Toner Empty / Toner Cartridge Detection
Toner Empty Detection
Light from the toner empty detection LED (LED1) on the toner
empty/toner cartridge detecting board (PWB-B) is reflected by a mir-
ror in the toner cartridge and received by photo sensor (PT1).
The amount of light received by the photo sensor determines
whether the toner is empty or nearly empty.
1-10
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