Fig. 4-29 Eliminator Assembly Removal - Canon NP-70 Service Manual

NP-70
4-25
2) RADIATING ELEMENT HOUSING
Each of the radiating elements is secured in a housing which insulates the high voltage from the
NP-70 copier frame. With the exception of the residual charge eliminator, these housings con-
tain awire guide and wire terminal for ensuring proper wire tension and height.
3) WIRE GUIDE
For assemblies with wire radiating elements, a wire guide is provided at each end of the assembly
to enable wire height (distance from drum surface) adjustments.
4) WIRE TERMINAL
For assemblies with wire radiating elements, a wire terminal is provided at the rear for ensuring
proper wire tension. This terminal is connected to the wire by means of a spring and serves as a
means of securing the corona wire.
5) GRID WIRE
Included with the A. C. corona is a grid wire of similar properties to the corona wire radiating
elements. This grid, positioned between the A. C. corona and the drum, is essential to the
LP-process due to its stabilizing of the discharge process which occurs when the drum is ex-
posed to the image. The potential of this grid is OV due to grounding.
As each of the corona assemblies is distinct in construction, reference should be made to the
NP-70 Parts Catalog for details of assembly appearance.
4.5-3
REMOVAL/INSTALLATION ACTIONS
1) RESIDUAL CHARGE ELIMINATOR ASSEMBLY REMOVAL
This assembly is removed by unscrewing the two (2) retaining screws which secure it to the
upper left main frame member of the copier body, as shown in Fig. 429.
Fig. 4-29 Eliminator Assembly Removal
© CANON INC.
Second Printing,lune, 1974