Phaser 3140/3155/3160 Printer Service Manual
8-5
Service Parts Disassembly
Fastener Types
The following table lists the primary types of Posi-Drive screws used to assemble
the printer. The procedures provide dimensional specifications for screws being
removed.
Caution
Use care when installing self-tapping screws in plastic. To properly start the
screw in plastic, turn the screw counter-clockwise in the hole until you feel the
screw engage the threads, then tighten as usual. Always use the correct type
and size screw and properly align the screw to prevent damaging the tapped
holes. Do not use excessive force to remove or install either a screw or a printer
part.
Posi-Drive Screw Types used in the Printer
Type
Application
Shape
Characteristics
Self-tapping,
plastic, black
1. Black colored.
2. Screw thread is coarse
compared to metal screw.
3. Screw tip is thin.
Self-tapping,
plastic, silver
1. Silver colored.
2. Screw thread is coarse
compared to metal screw.
3. Screw tip is thin.
Self-tapping,
plastic with
flange, silver
1. Silver colored.
2. Screw thread is coarse
compared to metal screw.
3. Screw tip is thin. Screw has
a flange.
Sheet Metal,
silver
1. Silver colored.
2. Diameter is uniform.
Parts etc.
Plastic
Coarse
Parts etc.
Plastic
Coarse
Parts etc.
Plastic
Coarse
Parts etc.
Sheet
Metal
