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Step
Action and Questions
6
Cartridge HV contact Assembly Developer Pin Springs
Check the developer pin springs for the cartridge that is
having a problem to make sure they are no bent or
damaged.
Are the springs bent or damaged?
Step B
Note: It is possible that there is a problem with more than one print cartridge, HV
Contact, Block Assembly, cable or assembly.
Step
Action and Questions
1
Print Cartridge(s) - This is most likely caused by a failure of
the cleaner in the print cartridge or cartridges. Replace any
of the cartridges that appear to have a problem.
Does this fix the problem?
2
HV Contact Block Assembly Check, Doctor Blade or TAR
Contact - Check for a stuck TAR contact pin in the HV
Contact Block Assembly of the colors with the problem.
Look at figure 1 for pin locations.
Is the TAR contact pin stuck or operating smoothly for the
colors with the problem?
3
Doctor Blade Contact - Check to make sure the Doctor
Blade Cable is connected to the Doctor Blade terminal on
the Developer HVPS.
Is the cable connected correctly?
4
Doctor Blade Contact Pin in HV Contact Block Assembly
Check to make sure the Doctor Blade Contact Pin in the HV
Contact Block assembly is not stuck and is operating
smoothly. Look at figure 1 for pin location.
Is the Doctor Blade contact pin stuck operating smoothly?
5
Continuity Check - High Voltage Contact Assembly - Check
continuity from the Developer HVPS Contact Spring to the
Charge Roll Pin in the contact assembly.
Is there continuity?
6
Cartridge HV contact Assembly Developer Pin Springs
Check the developer pin springs for the cartridge that is
having a problem to make sure they are no bent or
damaged.
Are the springs bent or damaged?
2-78
Service Manual
5060-XXX
Yes
Replace the
damaged
Developer
Spring
Yes
Problem
Solved
Go to Step 3
Go to Step 4
Go to Step 5
Go to Step 6
Replace the
damaged
Developer
Spring
No
Replace the
"HVPS
Developer
Board" on
page 4-38
No
Go to Step 2
Repair the HV
Block Contact
for the faulty
color
Connect the
cable
correctly.
Replace the
cable if it is
broken or
damaged.
Repair the HV
Block Contact
for the faulty
color.
Repair the
High Voltage
Contact
Assembly as
necessary
Replace the
"HVPS
Developer
Board" on
page 4-38
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