Canon DADF-R1 Service Manual page 117

Code Sensor type
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 S3
0044 1st sheet reversal delay
0045 1st sheet registration delay
0046 1st sheet reversal stationary
0047 1st sheet delivery delay
Sensor Description
notation
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.
S2, S3 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).
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.
S1 A reversal delay condition (0005) has occurred on the 1st sheet.
S1 A reversal stationary condition (0006) has occurred on the 1st sheet.
PI13 A delivery delay condition (0007) has occurred on the 1st sheet.
Chapter 3
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