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Canon iPF9000S Troubleshooting Manual Page 146

Ipf5000, ipf700, ipf8000, ipf800, ipf650/750 series.
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Example 3: Main controller and head contact pin continuity check
1. Identify the color (chip) that has been found to have an imaging failure in a Nozzle Check Print operation.
2. Connect flat cable ③a under test to connector J02 of the flat cable checker.
3. Connect the ― terminal of the tester to any grounding terminal (GND as shown below).
4. Chips (A through F) have a specific color to control each and also have six contacts each. Check all these contacts for
continuity.
5. With the E-chip, for example, apply the + terminal of the tester to the contact at position E shown below to check for
continuity. (An example of making a continuity check on E-chip signals is shown below.)
■Nozzle check print and chip layout (Double-head model example)
A
B
D
E
A
B
D
E
Layout of head contact pins exposed with the head removed
B
C
C
B
B
A
GND
GND
GND
GND
GND
Troubleshooting Guide
C
Left
head
F
C
Right
head
F
A
A
B
A
C
C
D
A
C
B
C
D
A
B
F
F
E
D
E
D
E
F
F
E
F
GND
D
F
*Inaccessible for checking on the iPF5000 Series.
4-26
E
E
D
GND
GND
GND
GND
Tester

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  • ted Furrty Mar 30, 2015 08:09:
    Message on printer is The ink pad is almost fuff