2-74
Service Manual
5060-XXX
Step A
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
Yes
No
1
Print Cartridge - This is most likely caused by a failure of the
cleaner in the print cartridge. Try a new print cartridge for
the faulty color.
Does this fix the problem?
Problem
Solved
Go to Step 2
2
HV Contact Block Assembly, Doctor Blade or TAR Contact
Check for a stuck TAR contact pin in the HV Contact Block
assembly of the color with the problem. Check figure 1 for
pin location.
Is the TAR contact pin stuck or operating smoothly.
Go to Step 3
Repair the HV
Block Contact
for the faulty
color.
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?
Go to Step 4
Connect the
cable
correctly.
Replace the
cable if it is
broken or
damaged.
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?
Go to Step 5
Repair the HV
Block Contact
for the faulty
color.
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?
Go to Step 6
Repair the
High Voltage
Contact
Assembly as
necessary
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?
Replace the
damaged
Developer
Spring
Replace the
“HVPS
Developer
Board” on
page 4-36
Step
Action and Questions
Yes
No
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?
Problem
Solved
Go to Step 2
Содержание 13P0150 - C 750dtn Color Laser Printer
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