Xerox Wide Format 6705 System Manual page 128

8. Skip
Image Symptoms Blank area appears as straight line in the Drum Shaft direction.
Print the Print Quality Pattern or Ladder by using IOT DC606 Test
Print and check the image symptoms.
No. Type Check Item
1 If the problem Is the Developer Housing
also occurs Assembly having revolution
during Test Print failure? (Check the drive
system)
Is the Tracking Roll scratched,
contaminated, or deformed?
Is the Drum having a revolution
failure? (Check the drive
system)
Is the Cleaning Blade curled or
deformed?
Is the cleaner clogged? (Is the
Waste Toner Container full?)
Is the Drum deformed,
contaminated, or have dirt
stuck to it?
Is the paper damp due to
moisture absorption?
3-18
Action
Replace the related parts.
Replace the related parts.
Replace the paper.
9. Black Lines
Line image of width narrower than 1 mm that does not exist in the
Image Symptoms
original document appears in the copy feed direction.
Print the Basic Pattern or Print Quality Pattern by using IOT
DC606 Test Print and check the image symptoms.
No. Type Check Item
1 It appears from Is the Drum scratched?
Lead Edge to
the Tail Edge of
the copy Is the Cleaning Blade edge
damaged?
Is the LPH lit poorly?
Is the Heat Roll contaminated
or scratched?
Is the Mag Roll scratched?
2 The problem Is the Drum contaminated?
appears in the
Is the Drum scratched?
Halftone area at
approx. 251 mm
cycles.
Chapter 3 Image Quality Troubleshooting
Action
Check if anything is in contact
with the Drum and replace the
Drum.
Replace the Cleaning Blade.
Check whether the position of
the LPH joints match. (If the
position of the LPH joints
match, perform [ADJ 8.1.5 LPH
Joint Adjustment])
Check the lighting of the LPH.
(Check the harness)
Replace the LPH Assy.
Perform cleaning or
replacement.
Replace the Mag Roll as
necessary.
Clean the Drum.
Check if anything is in contact
with the Drum and replace the
Drum.
3.3 Image Quality Troubleshooting