Canon DADF-Q1 Service Manual page 71

Code Sensor type
0012 pre-reversal delay 2
0013 pre-reversal stationary 1
0014 pre-reversal stationary 2
0015 pre-reversal stationary 3
0016 pre-reversal stationary 4
0017 pre-reversal
pickup delay
0018 pre-reversal pickup stationary 1
0019 pre-reversal pickup stationary 2
0020 reversal pickup delay
0021 reversal pickup stationary
0022 pickup lead edge skew
0023 pickup trail edge skew
0024 pickup NG1
0025 pickup NG2
0026 reversal pickup edge skew
0027 reversal pickup NG1
0030 manual feed registration delay
0031 manual feed registration stationary
0032 manual feed reversal stationary
0033 manual feed delivery delay
0034 manual feed delivery stationary
0043 1st sheet pickup stationary 1
0044 1st sheet reversal delay
Sensor Description
notation
PI4 At time of pre-reversal, the pre-reversal sensor does not detect an original when the reversal motor stops.
S1,S4 At time of pre-reversal, the separation sensor detects the original when it has been moved over a specific
distance (169 mm) after the reversal sensor has gone on.
S2,S4 At time of pre-reversal, the pre-registration roller sensor detects the original when it has been moved
over a specific distance (120 mm) after its trail edge has moved past the separation pull-off roller.
S2,S3 At time of reversal, the post-registration sensor detects the original when it has been moved over a
specific distance (50 mm) after its trail edge has moved past the pre-registration roller sensor.
S1,S3 At time of pre-reversal, the reversal sensor detects the original when it has been moved over a specific
distance (100 mm) after the start of the reversal motor.
S1 At time of pre-reversal pickup, the reversal sensor does not detect the original when it has been moved
over a specific distance (100 mm) after the start of the reversal motor.
S1,PI4 At time of pre-reversal pickup, the pre-reversal sensor detects the original when it has been moved over
a specific distance after the reversal sensor has detected its lead edge.
S1,PI4 At time of reversal pickup, the reversal sensor detects the original when it has been moved over a specific
distance after the pre-reversal sensor has detected its trail edge.
S2 At time of reversal, the pre-registration roller sensor does not detect the original when it has been moved
over a specific distance (197 mm) after the end of arching.
S2 At time of reversal, the pre-registration sensor detects the original when it has been moved over a specific
distance (original length x 1.5 mm) after the pre-registration roller sensor has gone on.
S4,S5 At time of separation, there is a discrepancy of 10 mm in timing of lead edge detection between
separation sensor and skew sensor.
S4,S5 A time of pickup, there is a discrepancy of 10 mm in timing of trail edge detection between separation
sensor and skew sensor.
S1 At time of pickup, the reversal sensor detects the original before it has moved past the pre-registration
roller sensor.
S3,S2 At time of pickup, the post-registration roller sensor detects an original before the reversal motor has
started.
At time of pickup, the pre-registration roller sensor does not detect the original when it has been moved
over a specific distance.
At time of pre-reversal, the post-registration roller sensor detects an original before the reversal motor
has started.
At time of reversal, the pre-registration roller sensor does not detect the original when its trail edge
moves past the reversal sensor.
S4,S5 At time of pre-reversal, there is a discrepancy of 10 mm in timing of trail edge detection between
separation sensor and skew sensor.
PI4 At time of reversal, the pre-reversal sensor detects an original while the machine waits for the activation
of the pre-registration roller sensor.
S9 At time of arching in manual feed mode, the manual feeder registration roller sensor does not detect an
original within a specific time after the start of the delivery motor.
S1 In manual feed mode, the reversal sensor does not detect the original when it has been moved over a
specific distance (638 mm) after the start of the belt motor.
S1 In manual feed mode (platen roller), the reversal sensor detects the original when it has been moved over
a specific distance (50 mm) after the start of the belt motor.
PI13 At time of delivery in manual feed mode, the delivery sensor does not detect the original when it has
been moved over a specific distance (621 mm - original length).
PI13 At time of delivery in manual feed mode, the delivery sensor does not detect the original after it has been
moved over a specific distance (621 mm - original length).
S3 A pickup stationary 1 condition (0003) has occurred on the 1st sheet.
S2 A pickup stationary 2 condition (0004) has occurred on the 1st sheet.
Chapter 2
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