Replacing The Eeprom; Adjusting The Sensors And The Delivery Motor - Canon DADF-R1 Service Manual

5.3.2.2 Replacing the EEPROM

Perform the following when replacing the ADF
controller PCB.
1) Remove the EEPROM (IC8) from the faulty ADF
controller PCB.
J16 J15
J1
J2
J4
CB1
SW1
J5
DSP1
SW4SW3SW2
J3
J6
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2) Mount the EEPROM removed in step 1) to the
new ADF controller PCB.
MEMO:
The EEPROM on the new ADF controller PCB is not
used yet.
3) Turn on the copier, and check to make sure that
error code E420 is not indicated.
4) If error code E420 is indicated, mount back the
EERPOM once removed from the new ADF
controller PCB.
5) Perform the work under 1.2.3 "Adjusting the
Sensors and the Delivery Motor."
5.3.2.3 Adjusting the Sensors and the
Delivery Motor
Perform the adjustment if you have replaced any of
the following parts:
- EEPROM (memory backup)
- Reversal sensor (S1)
- Pre-registration roller senor (S2)
- Post-registration roller sensor (S3)
- Separation paper sensor (S4)
- Skew paper sensor (S5)
- Original sensor (S6)
- Original trailing edge sensor (S7)
- Manual feed registration roller paper sensor (S9)
- Delivery motor (M5)
MEMO:
The delivery motor is adjusted by sending a
reference signal to it, and the speed of rotation at that
time is measured by the delivery motor clock sensor
(PI11).
J14
J13
J12
IC8
J7 J8 J9 J10 J11
The result is used when generating the motor rotation
speed control signal (EJMPWM*).
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A. Steps to Take
1) Open the DADF, and make a single A4 copy of a
solid black original.
2) Remove the screw [1], and detach the ADF
controller cover [2].
3) Set the DIP switch (SW1) on the ADF controller
PCB as indicated.
4) Place the output obtained in step 1) in the original
tray with the black side facing down. Take care
not to cover the original sensor (S6) when placing
the output.
Black side down
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Original
sensor (S6)
5) Press the push switch (SW2) on the ADF
controller PCB.
The LED will indicate the following in sequence,
showing the result at the end: 1, 2, 3, 4, 5, 6, 7, 8,
9, A.
Chapter 5
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F-5-89
Original trailing
edge paper sensor
(S7)
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[2]
[1]
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