Guide Plate And Paper Size Detection - Ricoh FT7770 Service Manual

6. Guide Plate and Paper Size Detection

T h e r e a r f e n c e c a n b e m o v e d t o c h a n g e t h e p a p e r s i z e .
accomplished by loosening the thumb screw and moving the rear fence to
another slot.
The paper size detection sensors are mounted under the paper tray. When
t h e r e a r f e n c e i s i n s e r t e d i n t o o n e o f t h e p a p e r s i z e p o s i t i o n s , i t
enters one of the five photointerrupters.
informs the CPU which size paper is in the tray.
The signal from this sensor
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