Paper Type Detection - Lexmark Optra SC 1275 Service Manual
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Also See for Optra SC 1275:
- Service manual (209 pages) ,
- Manual (154 pages) ,
- Label manual (123 pages)
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Paper Type Detection
The overhead projection (OHP) sheet detect board (PWB-D2), con-
sisting of an LED (LED1) and a photo sensor (PT1), determines
whether transparencies or plain paper is being fed through the
machine.
When plain paper is feeding, the light from the LED reflects off the
surface of the paper, and strikes PT1.
1-8
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