Question about HP Hewlett Packard LaserJet 3800 Printer
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Posted on Jan 02, 2017
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Cassette (Tray 2) paper pickup and feed rollers
To remove the paper pickup and feed rollers
1 Remove the cassette.
2 Locate the two rollers on the bottom of the paper pickup unit (above the cassette). The pickup
roller is the smaller roller, and the feed roller is the larger roller.
3 Pinch the tab on the end of the cassette pickup roller (callout 1), and pull the roller out.
4 Pinch the tab on the end of the cassette feed roller (callout 2), and pull the roller out.
Figure 6-24 Removing the cassette pickup and feed rollers
Note Always replace the cassette pickup roller and the cassette feed rollers at the same time. Also replace
the separation roller (located in the paper cassette) when replacing these rollers
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Jams in tray 2
Table 7-10 Causes of tray 2 jams
The feed or separation rollers are dirty, worn, or damaged. Clean the rollers. If they are dirty after cleaning, or if they are
worn or damaged, replace the rollers.
The pickup roller is worn or damaged. Replace the pickup roller.
The tray 2 paper pickup assembly drive gears are damaged
or the assembly is defective.
Check the drive gears in the paper pickup drive assembly.
Replace the pickup drive assembly if the gears are
damaged. See Paper-pickup drive assembly.
The tray 2 pickup solenoid (SL101) is damaged. 1 Disconnect the connector for the tray pickup solenoid
from the dc controller PCA (location J92).
2 Measure the resistance between the cable connectors.
3 If the measured resistance is not approximately
160 ohms for the HP LaserJet 4200/4300, or 110 ohms
for the HP LaserJet 4250/4350, replace the tray 2
The tray 2 lifter-drive assembly or the stack position
sensor (PS107) is defective.
Replace the lifter-drive assembly. See Tray 2 lifter-drive
assembly and/or Printer switches and sensors.
The dc controller PCA is defective. Replace the dc controller PCA. See Dc controller PCA.
Dirty, worn, or deformed pick-up roller, cassette separation
roller, and cassette feed roller.
Clean the rollers if they are dirty. Replace any worn or
deformed rollers. The cassette separation roller and the
cassette feed rollare are to be replaced together.
Damaged gears in the cassette pick-up drive unit. Move the gears in the cassette pick up drive unit. If the
gears are not rotating correctly, or are damaged or worn,
replace the cassette pick-up drive unit.
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