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Chapter 1 Troubleshooting
If print image quality trouble occurs, print on paper of A3 or A4 size in order to judge and understand
the trouble precisely and take proper remedy steps. Utilize the image quality troubleshooting correction
table depending on the trouble for efficient troubleshooting.
If the trouble cannot be corrected according to the image quality troubleshooting, check the trouble
after replacing the "Major check parts" specified for the "Initial check" in the image quality
troubleshooting in succession making use of the Specifications in Chapter 6.
Image quality troubleshooting describes the representative image quality troubles as follows:
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P1 "Light (Undertoned) Prints"
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P2 "Blank Prints"
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P3 "Solid Prints"
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P4 "Vertical deletion or blank line"
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P5 "Horizontal deletion or blank line"
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P6 "Black (color) spots"
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P7 "Background or Foggy Print"
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P8 "Skewed paper"
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P9 "Paper Damage"
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P10 "Unfused Image or Image Easily Rubs off of Page"
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P11 "Vertical Dark Line"
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P12 "Afterimage (Ghost)"
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P13 "Partial Deletion"
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P14 "Horizontal Line (Periodical)"
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P15 "Fade Horizontal/Vertical"
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P16 "Color Registration (Color Shift)"
Reference Rolls related with image quality troubles and interval appearing on prints are shown
in the table below.
Defect Parts Replacement Parts PL Number Step
Magnet Roll DEVE ASSY 7.1.17 to 7.1.20 34 mm
Drum PHD ASSY 6.1.1 75 mm
RTC PHD ASSY 6.1.1 32 mm
IDT 1 PHD ASSY 6.1.1 132 mm
IDT 2 PHD ASSY 6.1.1 132 mm
IDT 1 Cleaner PHD ASSY 6.1.1 31 mm
IDT 2 Cleaner PHD ASSY 6.1.1 56 mm
Refresher PHD ASSY 6.1.1 66 mm
BTR BTR ASSY 5.1.4 65 mm
Heat Roll FUSER ASSY 5.1.1 98 mm
Belt FUSER ASSY 5.1.1 95 mm