CANON NP4835
Service Manual

d. Fitting the Grid Wire for the Primary Corona Unit 1 ) Loosen the three screws holding the block (front) in place, move the block (front) into the direction of the arrow shown in Figure 4-509, and tighten it temporarily.

Free a length of wire from the reel of the corona wire (O.lmm dia.), and form a loop with a diameter of 2 mm at its end. 3) Cut the end of the twisted corona wire [excess) to less than 1 mm with a nippier. 4) Hook the loop on the stud shown in Figure 4-5 10, and fit it in the order shown in the figure. 5) After (Figure 4-5 lo), wind the end of the corona wire around the fixing screw to fix it in place. 6) Cut the excess wire to less than 1 mm with a nipper. 7) Loosen the screw tightened temporarily in step 1) once again, and move the block into the opposite direction of the arrow shown in Figure 4-509, and adjust the tension of the grid wire. 9) Wipe the grid wire with a dry cloth. 9) Check the tcllowrng: . The grid wire is free of bends or twists and its gold plating has not peeled. . The wire is fitted at equal intervals, i.e., the grid wire is inside the groove of the bloc-k.

2)

@ Mounting

screws Figure 4-509

Note: To form the loop, wind the corona wire around the hex key once, and turn the hex key three to four times; thereafter, twist the corona wire.

Figure

4-510

COPYAlCHT

0

1991CANONINC.

CANONNP.483514835114835S14335 AN 0 WT

1988PRlNTE9 JAPANlIMPRIME JAPONI IN AU

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