Question about HP DeskJet 842c InkJet Printer
My hp 842c printer will not pick up paper. The rear section of the paper tray does not come up when the rear feed rollers turn. I have tried all the remedies I found on the HP site.
Paper lift mechanism is broken. It's uneconomical to have repaired, sorry.
Posted on Jan 23, 2009
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Posted on Jan 02, 2017
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Feb 07, 2011 | HP LaserJet P3005n Printer
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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