Image Quality Fip; Fip- 1.P1 Faint Print - Oki B6500 Service Manual

5.2 Image Quality FIP

FIP- 1.P1 Faint Print

Before commencing troubleshooting, check the paper transfer course. Make sure there is no foreign
articles on the transfer course, such as staples, paper clips, scraps of paper and so on.
Step
Checking the paper condition
Have new, dry and recommended paper on, and oper-
1
ate Test Print.
Is the density of the image normal?
Checking the laser beam course
Make sure there is no obstacle between ROS ASSY
and Drum.
2
Check if any stains on ROS ASSY window.
Are there any obstacles on the laser beam course?
Is ROS ASSY window clean?
Checking EP CARTRIDGE
Install a new EP CARTRIDGE.
3
Re-print the problem image.
Is the image density normal?
Checking BTR ASSY
Remove BTR ASSY. (RRP8.10)
4
Check if any stains and/or wear on BTR ASSY.
Are there any stains and/or wear on BTR?
Checking the drum ground
Remove GUIDE ASSY CRU R. (RRP8.13)
5 Check the Plate Earth, located on the back of GUIDE
ASSY CRU R.
Is the Plate Earth stained and/or deformed?
Checking HVPS/MCU
Replace HVPS/MCU. (RRP12.10)
6
Carry out a test printing
Is the problem cleared?
Print defect
The density of the image is entirely too faint.
ESS and possible causes
- EP CARTRIDGE
- GUIDE ASSY CRU R (PL8.1.25)
- BTR ASSY (PL8.1.21)
- 150 FEEDER ASSY (PL5.1.1)
- PWBA ESS (PL12.1.13)
- ROS ASSY (PL8.1.1)
- FUSER ASSY (PL8.1.20)
- LVPS (PL12.1.5)
- HVPS/MCU (PL12.1.19)
- 550 FEEDER ASSY (PL7.1.10)
Check
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Chapter 1 Troubleshooting
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End of work Go to step 2.
Remove obstacles
Go to step 3. and/or clean ROS
ASSY window.
End of work Go to step 4.
Replace BTR
Go to step 5.
ASSY. (RRP8.10)
Reform or clean the
Plate Earth, or
Go to step 6. replace GUIDE
ASSYCRU R.
(RRP8.13)
End of work Go to step 7.
No