Canon NP6317 Service Handbook page 22

CHAPTER 2 STANDARDS AND ADJUSTMENT
12. Installing the Corona Wires in the Primary and Transfer Corona Assemblies
• The corona wire must not be bent or twisted, and the gold plating must not be peeling off.
• The corona wire must not be slack. (The length of the corona wire tension spring should be
about 12 mm.)
• The corona wire must be in the V groove of the height adjusting piece.
13. Adjusting Height of the Corona Wires
Corona assembly
Primary corona
assembly
Transfer corona
assembly
Note:
The height (position) of the corona wire of the primary and transfer corona assemblies can be
adjusted by turning the screw at the back of the corona wire.
Turning the screw once causes the height of the corona wire to change by about 0.7 mm.
2-12
Primary corona assembly
(about 2 mm)
Trasnfer corona assembly
(about 5 mm)
Figure 2-18
Standard position
Figure 2-19
Allowable range
±2 mm
Approx. 10.5 mm
±2 mm
Approx. 10 mm