Action: Replace the pick-up PCB.
7. The DC controller PCB is defective.
Action: Replace the DC controller PCB.
III-3. Transfer and feed block
<Possible causes>
1. The registration roller is worn, deformed, or dirty.
Action: Clean the registration roller if it is dirty. Replace if worn or deformed.
2. Transfer charging roller does not rotate smoothly.
Action: Replace the transfer sub roller. Replace any worn gear(s).
3. Registration paper sensor lever does not move smoothly, or is damaged.
Action: Adjust the lever so that it moves smoothly. Replace it if damaged.
4. Registration roller drive gears are damaged.
Action: Replace any damaged gears.
5. The registration clutch is defective.
Action: Disconnect registration clutch connector J17. Measure the resistance between con-
nector J17-1 and J17-2 on the cable side. If it is not about 210, replace the reg-
istration clutch.
6. The DC controller PCB is defective.
Action: Replace the DC controller PCB.
III-4. Fixing and delivery block
<Possible causes>
1. Paper longer than the paper length set by the user was loaded during manual feeding.
Action: Advise the user to replace it with the set paper size.
2. The fixing roller does not rotate smoothly.
Action: Check whether any gears are worn or fractured.
3. The fixing entry guide is dirty, damaged, or clogged with toner.
Action: Clean the guide.
4. The fixing separation guide is dirty, damaged, or clogged with toner.
Action: Clean the guide.
5. The fixing separation claw is worn or damaged.
Action: Replace the claw.
6. The upper or lower fixing roller is deformed or damaged.
Action: Replace deformed or damaged rollers.
7. The nip width of the lower fixing roller is not correct.
Action: Replace the fixing unit.
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CHAPTER 4