Mechanism Overview
C274 1-6 SM
No. Component Function
10 Registration Sensor Detects paper approaching the registration roller.
15
Document Sensor Detects the leading edge of the original to determine
when to turn off the scanner motor. Checks for
original misfeeds.
16
Pressure Plate HP Sensor Detects when the pressure plate is at the home
position.
17
Pressure Plate Limit
Sensor
Detects when the pressure plate is in the lowest
position.
18 Master Eject Sensor Detects used master misfeeds.
19 Drum Master Sensor Detects if there is a master on the drum.
24 Eject Box Set Sensor Checks if the master eject box is installed.
25 Paper Exit Sensor Detects paper misfeeds at the exit.
28 Clamper Open Sensor Detects if the clamper is in the open position.
32 Feed Start Timing Sensor Determines the paper feed start timing.
36 Clamper Closed Sensor Detects if the clamper is in the closed position.
38
MasterEject Position
(Drum HP) Sensor
Detects when the drum is at the master eject
position.
Others
No. Component Function
1
Contact Image Sensor
(CIS)
This sensor reads and converts the light reflected
from the document into an analog video signal.
6 Thermal Head Burns the image onto the master.
35
Paper Feed Clutch Transmits main motor drive to the paper feed rollers
at the appropriate time.
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