Develop QC 2235 Plus, Руководство по обслуживанию

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Transfer Corona section QC 2235plus Theory of Operation Ver.1.0 Feb. 2004
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II Compos
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Ope
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tionn
10.3.8 Charge neutralization and separation of paper
• To neutralize any charge potential left in the paper which has undergone the 2nd image
transfer stage, a Charge Neutralizing Cloth is installed to the guide plate after the 2nd
Image Transfer Roller.
• The output of the Charge Neutralizing Cloth is switched automatically using the DC
power Supply/1 according to the paper type and the environmental conditions.
• Also provided are the three Transfer Belt Paper Separator Claws that properly separate
paper after the 2nd image transfer stage from the Transfer Belt.
• Switching of output of the Charge Neutralizing Cloth
HV1
4036ma2176c0
4036ma2546c0
Charge Neutralizing Cloth
Paper Separator Claws
Transfer Belt 2nd Image
Transfer Roller
Paper Type Ambience Control Detailed Description
1-sided print-
ing on the
plain paper
Low humidity Bias applied
• A negative charge, which is the reverse polarity to
the positive output from the 2nd Transfer Roller, is
applied to prevent the paper from being wound
around the Transfer Belt.
Normal
GND through
resistors
–
High humidity
2nd side of 2-
sided printing
on the plain
paper
– Bias applied
• Bias is applied regardless of the ambient condi-
tions, since the paper to go to the 2nd side print
cycle, which has undergone the fusing process, has
the condition equivalent to paper under low humid-
ity ambience.
Special paper
other than
plain paper
–
GND through
resistors
• Paper is stiff enough to present no separation prob-
lems.
• To prevent separation noise, grounded through
resistors regardless of the ambient conditions.