Fip- 1.P4 Vertical Blank Lines (White Stripes In Paper Transport Direction) - Oki B6500 Service Manual

FIP- 1.P4 Vertical blank lines (White stripes in paper transport direction)

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.
1
Re-print the problem image. Does the problem still
occur?
Checking the paper transfer course
Check if there are any stains or obstacles on the paper
2 transfer course between the paper feeding entrance
and the exit.
Are there any obstacles on the paper transfer course?
Checking the laser beam course
Make sure there is no obstacle between ROS ASSY
3 and Drum.
Are there any obstacles on the laser beam course?
Check if any stains on ROS ASSY window.
Checking EP CARTRIDGE
Install a new EP CARTRIDGE.
4
Re-print the problem image.
Does the problem still occur?
Checking BTR ASSY (PL8.1.21)
Remove BTR ASSY. (RRP8.10)
5
Check if any stains and/or wear on BTR ASSY.
Are there any stains and/or wear on BTR?
Print defect
There are some extremely faint or completely non-
printed parts. Those non-printed
parts cover a wide area vertically, along the paper feed-
ing direction.
ESS and possible causes
- EP CARTRIDGE
- BTR ASSY (PL8.1.21)
- 150 FEEDER ASSY (PL5.1.1)
- ROS ASSY (PL8.1.1)
- PWBA ESS (PL12.1.13)
- FUSER ASSY (PL8.1.20)
- Heat Roll
- Pressure Roll
- 550 FEEDER ASSY (PL7.1.10)
Check
1 – 118
Chapter 1 Troubleshooting
Yes
Go to step 2. End of work
Remove the obsta-
cles or stains from
Go to step 3.
the paper transfer
course.
Remove all the
obstacles from the
Go to step 4. laser beam course
and/or clean ROS
ASSY window.
Go to step 5. End of work
Replace BTR
Go to step 6.
ASSY. (RRP8.10)
No