Hardware Review - HP LaserJet II Serie Manual De Instrucciones

HP 33440/HP 33449 COMBINED SERVICE MANUAL
Hardware Review
In the removal procedures which follow in this chapter, numbers inside parentheses - (2) for
e-pie
- refer to the number of fasteners to be removed. Pay careful attention to the type
of screw removed; always replace it in the same location. The folloting table presents usage
guidelines for the principal screw types used in the HP 33440 and HP 33449 printers.
Table 6-1. Types of Fasteners
Coated @lack) pan-head
Fastening meti or plastic to meti
Phlltips machine screw. or meti inserts.
D
Plated (silver-colored)
#"
Fastening meti to meti.
pan-head Phillips machine
/
screw.
Coated (black) washer-head Fastening plastic or meti to meti
Phillips machine screw. or a meti insert when a washer
is required.
Plated (silver-colored) Fastening meti to meti when
washer-head Phtifips
a washer is required. Aso used
machine screw. as cover screws.
e
0 )
Coated (black) self-tapping
Attaching plastic parts to a plastic
Phillips screw for plastic. casting when self-tapping is
required.
Plated (brass-colored) Phillips Atiching Fusing Assembly cover
shoulder screw. and Fuser Insulating Covers.
I
A.
IPlated (silver-colored) IFastening meti to meti where
w
Phillips screw with ided ground or voltage contact
captive star washer.
is required.
-k Long, brass-wlored screw lLaser/Scanning Assembly.
with lock washer and
I
flat washer.
Caution
Use of a pozidrive screwdriver may strip the screw head. The HP 33440 and HP
@
33449 printers use only No. 2 Phillips screws. Use the proper screwdriver when
working with these fasteners. To retain RFI certification, all screws must be
replaced in their original locations and tightening snugly.
6-6