HP 5 C3916A, C2021A, 5n C3952A, 5m C3917A, 4 C2001A Smeared Print/Improper Fusing, Distorted Print

Table 7-20	Smeared Print/Improper Fusing
Possible Cause		Action
Fuser levers not in place.		The Fuser Assembly has shipping levers
(All LJ4, some LJ4+, N/A on LJ5)		that must be lowered during the setup
		process. See Chapter 3 for instruction on
		how to lower the fusing levers.
Media. The media may not be acceptable		Verify that the media meets
for laser printing. Heavy paper stock is a		specifications as shown in the HP
common cause of smeared print and		LaserJet Family Paper Specifications
improper fusing.		Guide.
Dirty Fuser Assembly. The print smears if		Replace the Fuser Assembly and clean
the Fuser Assembly is dirty.		the printer.
Bent Static Teeth. If the static teeth are		If the teeth are bent or defective, replace
defective, the print could smear prior to		the Static Teeth Assembly.
the paper entering the Fuser Assembly.
Worn Gears. If the drum and paper are		Replace the Toner Cartridge.
not moving at the same speed the
characters may smudge.
Foreign object in paper path. Something		Remove any foreign material. Try a new
is smearing the unfused toner image on		Toner Cartridge.
the surface of the paper.
Orange Packing Spacers not removed.		Remove Orange Packing Spacers.
Some HP LaserJet 4 only.
Table 7-21
	Distorted Print
Possible Cause		Action
Paper Path. If the paper does not move		Examine the paper transport rollers
at a uniform speed, the print image will		along the paper path for wear. Replace if
be affected. Characters that are either		excessive wear exists. Inspect and
too tall or too short (in the direction of		replace the Toner Cartridge, Drive Gear
paper motion), are usually a result of		Assembly, Main Motor, or Fuser
drive mechanism problem.		Assembly as necessary.
Laser/Scanning Assembly. Wavy,		Replace the Laser/Scanning Assembly.
irregular-shaped characters, or irregular
line margins in the scan direction of
printing are usually a result of a defective
Laser/Scanning Assembly.

7-42 Troubleshooting