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LASER EXPOSURE
2-26
A230/A231/A232
SM
2.3.5 LASER BEAM PITCH CHANGE MECHANISM
A printer option is available for this machine and the resolution of the printer is 600
dpi. The machine changes the resolution between 400 and 600 dpi by rotating the
LD unit.
When the LD positioning motor [A] turns, the metal block [B] (which contacts the
LD unit housing [C]) moves up and down. This changes the position of the L2 laser
beam (L1 does not move).
Both LD unit positions are at fixed distances from the LD home position sensor [D]
(measured by motor pulses). Usually, the LD unit moves directly to the proper
position. However, when the number of times that the resolution has changed
reaches the value of SP2-109-5, the LD unit moves to the home position (the home
position sensor activates), then it moves to the proper position. This recalibrates
the LD unit positioning mechanism.
A230D204.WMF
A231D503.WMF
[A]
[B]
[C]
[D]
2 mm
P1
P2
P1: 400 dpi
P2: 600 dpi
Содержание A230
Страница 1: ...SERVICE MANUAL 000861MIU A230 A231 A232 RICOH GROUP COMPANIES ...
Страница 2: ...SERVICE MANUAL A230 A231 A232 RICOH GROUP COMPANIES ...
Страница 3: ...A230 A231 A232 SERVICE MANUAL 000861MIU ...
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Страница 35: ......
Страница 39: ......
Страница 40: ...OVERALL MACHINE INFORMATION ...
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Страница 62: ...DETAILED SECTION DESCRIPTIONS ...
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Страница 139: ......
Страница 140: ...INSTALLATION ...
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Страница 208: ...SERVICE TABLES ...
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Страница 280: ...PREVENTIVE MAINTENANCE ...
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Страница 285: ...REPLACEMENT AND ADJUSTMENT ...
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Страница 343: ...TROUBLESHOOTING ...
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Страница 369: ...SERVICE CALL CONDITIONS 7 23B A230 A231 A232 SM This Page Is Intentionally Left Blank Rev 01 99 ...
Страница 383: ...PAPER TRAY UNIT A682 ...
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Страница 403: ...LARGE CAPACITY TRAY A683 ...
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Страница 419: ...BY PASS A689 ...
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Страница 433: ... 1 BIN TRAY A684 ...
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Страница 443: ...AUTO DOCUMENT FEEDER A680 ...
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Страница 468: ...ROM HISTORY 12 22 A230 A231 A232 SM B Rev 09 2000 ...
Страница 477: ...INTERCHANGE UNIT A690 ...
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Страница 485: ... DUPLEX A687 ...
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Страница 499: ...BRIDGE UNIT A688 ...
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Страница 507: ...1 000 SHEET FINISHER A681 ...
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Страница 535: ...3 000 SHEET FINISHER A697 ...
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Страница 571: ...SwapBox and SwapFTL Installation Manual ...
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Страница 583: ...SwapFTL Binary Utility Operation Manual ...
Страница 584: ......
Страница 595: ...SM A203 231 A232 19 11 3 4 HELP MENU 3 4 1 HELP ABOUT SWAPUTI SwapBox And SwapFTL FUNCTIONS ...
Страница 596: ......
Страница 597: ...NINE TRAY MAILBOX AND BRIDGE UNIT G909 G912 ...
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Страница 627: ...SCANNER KIT A695 ...
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Страница 802: ...Service Tables A693 DEDICATED TRANSMISSION PARAMETERS 4 77 SM A230 A231 A232 Switch 08 Not used ...
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Страница 853: ...TECHNICAL SERVICE BULLETINS ...
Страница 857: ...ISDN Unit A816 ...
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Страница 909: ...TECHNICAL SERVICE BULLETINS ...
Страница 922: ...SwapFTL and SwapFTL Installation Manual ...
Страница 933: ...SwapFTL Binary Utility Operation Manual ...
Страница 944: ...SM A203 231 A232 19 11 3 4 HELP MENU 3 4 1 HELP ABOUT SWAPUTI SwapBox And SwapFTL FUNCTIONS ...
Страница 986: ...SERVICE CALL CONDITIONS 7 23B A230 A231 A232 SM This Page Is Intentionally Left Blank Rev 01 99 ...
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