April 2010
3-9
Phaser 3635MFP/WorkCentre 3550
IQ2, IQ3
Image Quality
• HVPS, PL 1.10 Item 3.
• Connection PWB, PL 3.10 Item 17.
• Print cartridge, PL 9.10 Item 1.
Perform OF7 Main PWB Check RAP.
3550 Checkout
1. Determine the source of the problem. Make a print. Make a copy.
2. If the defect appears only in copy mode, perform the following:
a. If the defect appears only when using the DADF, check that the scanner lock, PL
14.11 Item 24 is completely unlocked.
b. Perform the Shading Test procedure, GP 15 Shading Test. If the shading test fails:
i. Install new components as necessary:
• CCD module, PL 14.11 Item 2.
• CCD module cable, PL 14.11 Item 5.
• Scanner assembly, PL 14.11 Item 21.
ii. Perform OF7 Main PWB Check RAP.
3. If the defect appears in all modes, perform the following:
a. Examine the print cartridge, PL 9.10 Item 1. Ensure it is free from all packing or seal-
ing material.
b. Check the LSU. Go to the 06-100, 06-200 LSU Error RAP.
c. Refer to Wiring Diagram 14 (3550) Perform the following:
• Check the wiring between the LSU and CN17 on the Main PWB.
• Install a new LSU, PL 6.10 Item 1.
d. Perform the following:
•Refer to Wiring Diagram 2. Remove the terminal cover, PL 9.10 Item 6, then
check the spring contacts between the HVPS, PL 1.10 Item 3 and the print car-
tridge, PL 9.10 Item 1. The spring contacts supply the voltages to the print car-
tridge. If necessary, clean the spring contacts.
• Check the following wiring:
– Wiring Diagram 1 Between CON3 on the SMPS and the CN1 on the Con-
nection PWB.
– Wiring Diagram 2. Between CN15 on the Main PWB and CN5 on the
HVPS.
– Wiring Diagram 15 (3550) Between CN2 on the Connection PWB and
CN12 on the Main PWB.
e. Install new components as necessary:
• HVPS, PL 1.10 Item 3.
• Connection PWB, PL 3.10 Item 17.
• Print cartridge, PL 9.10 Item 1.
Perform OF7 Main PWB Check RAP.
IQ3 Black Copies or Prints RAP
Use this RAP when the machine produces black copies and prints.
Ensure the IQ1 Image Quality Entry RAP is performed before starting this RAP.
Procedure
WARNING
Switch off the electricity to the machine. Disconnect the power cord from the customer
supply while performing tasks that do not need electricity. Electricity can cause death or
injury. Moving parts can cause injury.
Go to the relevant procedure:
• 3635 Checkout
• 3550 Checkout
3635 Checkout
Refer to Wiring Diagram 3 (3635). Perform the following:
1. Ensure the machine software is at version 20.100.29.000 or above.
2. Make a print, make a copy. If the print and copy are both black, go to the 06-100, 06-200
LSU Error RAP.
3. Check the CCD module cable, PL 14.10 Item 23, between the CCD module and CN8 on
the Main PWB. If necessary, install a new CCD module cable, PL 14.10 Item 23.
4. If necessary install a new CCD module, PL 14.10 Item 8.
5. Refer to Wiring Diagram 2. Perform the following:
• Check the spring contacts between the HVPS, PL 1.10 Item 3, and the print car-
tridge, PL 9.10 Item 1. The spring contacts supply the voltages to the print cartridge.
If necessary, clean the spring contacts.
• If necessary, install a new HVPS, PL 1.10 Item 3.
6. Perform OF7 Main PWB Check RAP.
3550 Checkout
Refer to Wiring Diagram 12 (3550). Perform the following:
1. Make a print, make a copy. If the print and copy are both black, go to the 06-100, 06-200
LSU Error RAP.
2. Check the CCD module cable, PL 14.11 Item 5, between the CCD module and CN31 on
the Main PWB. If necessary, install a new CCD module cable, PL 14.11 Item 5.
3. If necessary install a new CCD module, PL 14.11 Item 2.
4. Refer to Wiring Diagram 2. Perform the following:
• Check the spring contacts between the HVPS, PL 1.10 Item 3, and the print car-
tridge, PL 9.10 Item 1. The spring contacts supply the voltages to the print cartridge.
If necessary, clean the spring contacts.
• If necessary, install a new HVPS, PL 1.10 Item 3.
5. Perform OF7 Main PWB Check RAP.
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