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PRINTING AND PRESSURE CYLINDER
C262/C265 6-106
SM
6.9.7 PAPER FEED CONTROL MECHANISM
Paper Feed Start Timing Detection
There are two actuators on the rear flange of the pressure cylinder. The two
actuators activate the paper feed start sensor [A], to determine the start timing of
the paper feed motor and the registration motor. (For details, refer to the Paper
Feed section – Paper Feed Mechanism, and Paper Registration Mechanism.)
Detection and Feedback of Fluctuations in Pressure Cylinder Rotation
Since the pressure cylinder does not have a perfectly circular cross-section, the
rotation speed tends to fluctuate.
The feed encoder [B], which is a photointerrupter, is activated by the encoder plate
[C] at the rear of the pressure cylinder, generating a pulse signal. The CPU
monitors this signal to detect fluctuations in the pressure cylinder rotation.
Depending on the detected fluctuation, the registration motor start timing is
adjusted so that the leading edge of the paper is precisely caught by the paper
clamper [D] on the pressure cylinder.
C262D102A.WMF
C262D097.WMF
[A]
[B]
[C]
[D]
Содержание LDD250
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Страница 28: ...SPECIFICATIONS...
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Страница 34: ...INSTALLATION...
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Страница 43: ...INSTALLATION PROCEDURE C262 C265 1 8 SM C262I044 WMFF C262I046 WMFF...
Страница 70: ...PREVENTIVE MAINTENANCE...
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Страница 74: ...REPLACEMENT AND ADJUSTMENT...
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Страница 84: ...SCANNER UNIT SM 3 9 C262 C265 Replacement Adjustment C Scanner drive motor x 1 x 2 1 spring C262R008 WMF C...
Страница 154: ...PAPER FEED SECTION SM 3 79 C262 C265 Replacement Adjustment E Paper feed assembly x 4 x 3 C262R087 WMF E...
Страница 233: ...TROUBLESHOOTING...
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Страница 259: ...SERVICE TABLES...
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Страница 321: ...DETAILED SECTION DESCRIPTIONS...
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Страница 394: ...DRUM C262 C265 6 72 SM 6 7 5 DRUM DRIVE MECHANISM C262D063 WMF C262D065 WMF C262D066 WMF A B C D E...