Stringing The Corona Wires; Transfer Corona Assembly - Canon LBP-CX Series Service Manual

2. Drum cleaning
(I)
Open the printer. Remove the EP cartridge.
(2) Turn the cartridge upside down, then open the
protective shield.
(3)
Wipe a piece of flannel or other soft cloth over
a toner-coated area so that the cloth is liberaly
coated with toner, then clean fingerprints, etc.,
from the drum with this toner-covered cloth.
Note:
- Always turn the drum only in the direction that
it turns while making prints. If it is turned back-
ward, the spring-loaded contact that applies the
developing bias to the inside rim of the developing
cylinder may be bent backward so that it no long-
er contacts the cylinder, thus preventing proper
development.
Use a piece of flannel cloth (or other soft cloth) to
clean the drum surface. Never use lint-free paper
(it could scratch the surface).
Cleaning should be done quickly to prevent blank
areas and/or white lines due to photosensitive
"memory".
B. Transfer Corona Assembly
1. Removal
(1)
Open the printer (raise the upper half).
(2) Remove the separation belt. (See Fig. 4-38.)
(3) Remove the traµsfer guide.
(4) Remove the screw(l) and the transfer corona
assembly.
Figure 4-67
2.
Stringing the corona
wires
(1)
Remove the right and left panels. Remove the
old corona wire.
(2) Cut off about 30 cm of corona wire. Form a
2-mm loop at one end by wrapping the wire
around a small Allen wrench and twisting the
loop closed. Make a loop of the same size at the
other end so that the total length of the wire is as
shown in Fig. 4-68.
2-ef>2mm
I .
5mm or less
264±0.2mm
Figure 4-68
(3) Hook one of the loops over the stud on the right
block and pass the wire through the V-groove in
the block.
(4) Put one end of the spring through the other loop
of the wire, then put the other end of the spring
over the spring hanger on the left block.
Figure 4-69
Note: The corona wires should not be bent,
twisted or kinked. They also should be
clean and smooth. Clean the corona
wires with a cotton swab (provided
with. the EP cartridge) dampened with
alcohol.
COPYRIGHT
©
BY CANOll INC. CANON lBP-CX SERIES REV.2 JULY 1985 PRINTED IN JAPAll (IMPRIME AU JAPOll)
4-19