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Action: Replace it if the belt in the feed belt unit is cut or the feed belt roller is damaged or
worn.
18) Damaged gears
Action: Check the drive gears of the feed belt. Replace them if damaged or worn.
[ 3-4 ] Fixing and delivery block
<Possible causes>
1) If the paper is jammed after the fixing unit, go to step 11).
2) Upper or lower fixing roller does not rotate smoothly.
Action: Replace them if fixing unit drive gears or the lower roller drive gear is worn or frac-
tured.
3) Projection on the fixing unit entrance guide, upper or lower fixing separation guide due to
dirt, scars, or toner attachment.
Action: Clean the guide. Replace it if scarred or damaged.
4) Scar/deformed upper and lower fixing rollers
Action: Replace the rollers.
5) Defective fixing unit delivery sensor lever
Action: Adjust the lever correctly if it does not move smoothly or is out of position. Or,
replace it if damaged or deformed.
6) Worn fixing unit delivery roller
Action: Replace the fixing unit delivery roller.
7) Damaged fixing unit delivery roller drive gears
Action: If any gears are damaged or worn, replace them.
8) Projection on the deflector due to dirt, scars, or toner attachment.
Action: Clean the face-up deflector if dirty. Replace it if scarred or deformed.
9) Worn face-down delivery roller
Action: Replace the face-down delivery roller.
10) Defective face-down delivery roller/drive belt
Action: Replace the face-down delivery roller gear if worn or fractured. Or, if the drive belt
is cut, replace it.
11) Defective DC controller PCB
Action: Replace the DC controller PCB.
[ 3-5 ] Duplexing unit block
<Possible causes>
1) Execute a test print. Go to step 9) if the paper is jammed in the duplexing feed unit.
2) Worn/deformed reversing roller
Action: Replace the reversing roller if worn or damaged.
CHAPTER 4
4 - 31
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Table of Contents
Troubleshooting
