
16 Aprit ’88
3. Fuzzy Lines or Bands
- Possible Causes -
+
Dirty
corona wire
- Action -
Clean the charge, transfer, and PTL.
UNEVEN DENSITY
Changes Across The Copy
- Possible Causes -
●
Charge corona wire height not even
+ Charge corona wire dirty
+ Doctor gap not even
- Action -
Does the darker area follow the image
Y
N
I
I
Clean the charge corona wires.
when making reduced copies?
Are the charge corona wires incorrectly
positioned in the wire cleaner and end block?
Y
N
I
Is the charge corona current uneven across the drum?
Y
N
I
I
Clean the transfer corona unit.
Adjust the charge corona current and wire height.
Position the wires correctly.
If the problem still exists, check and adjust the doctor gap.
Are any of the optics parts stained?
Y
N
I I
11-7
Содержание FT4430
Страница 1: ...RICOH FT4430 S E R V I C E M A N U A L RICOH COMPANY LTD...
Страница 2: ...SECTION 1 OVERALL MACHINE INFORMATION...
Страница 3: ...Table of Contents SPECIFICATIONS OPERATION PANEL SECTION A SECTION B...
Страница 11: ......
Страница 12: ......
Страница 17: ...16 April 88 ELECTRICAL COMPONENT LAYOUT 1 14...
Страница 25: ...SECTION 2 DETAILED SECTION DESCRIPTIONS...
Страница 103: ...SECTION 3 INSTALLATION...
Страница 123: ...SECTION 4 SERVICE TABLES...
Страница 133: ...16 April 88 SERVICE PROGRAM MODE TABLE 4 8...
Страница 134: ...16 April 88 4 9...
Страница 135: ...16 April 88 4 10...
Страница 145: ...SECTION 5 REPLACEMENT AND ADJUSTMENT...
Страница 225: ...SECTION 7 DOCUMENT FEEDER...
Страница 228: ...16 April 88 MECHANICAL COMPONENT LAYOUT Feed Roller Pick up Roller Original Table Registration Rollers 7 2...
Страница 263: ...SECTION 8 SORTER...
Страница 266: ...16 April 88 MECHANICAL COMPONENT LAYOUT Exit Rollers 4 Bins 2 Bin Drive Wheel 5 Roller Drive Belt 3 Proof Tray...
Страница 281: ...SORTER CONTROL BOARD SCHEMATIC IOOV AC s 1 0 2 1 b 4 16 April 88 A024...
Страница 282: ...SECTION 9 LARGE CAPACITY TRAT...
Страница 285: ...16 April 88 MECHANICAL COMPONENT LAYOUT 1 Drive Wire 2 Drive Gears 3 Drive Pulley 4 Tray Wire 5 Lift Rods 9 2...
Страница 301: ...SECTION 10 EDITOR BOARD...
Страница 302: ...CONTENTS...
Страница 312: ...SECTION 11 TROUBLESHOOTING...
Страница 344: ...RICOH FT4430 A024 P A R T S C A T A L O G First Edition April 1988 RICOH COMPANY LTD...
Страница 346: ...1 EXTERIOR A024 April 30 88 2...
Страница 349: ...2 REGISTRATION A024 April 30 88...
Страница 351: ...3 PLATEN COVER AND CASSETTE A024 April 30 88...
Страница 353: ...4 PAPER FEED A024 April 30 88 8...
Страница 357: ...5 OPERATION PANEL A024 10 April 30 88...
Страница 359: ...6 FRAME A024 April 30 88 12...
Страница 361: ...7 OPTICS 1 A024 April 30 88...
Страница 363: ...8 OPTICS 2 A024 April 30 88 16 1...
Страница 365: ...9 AROUND DRUM A024 April 30 88 18...
Страница 368: ...10 35 CLEANING UNIT A024 April 30 88 20...
Страница 370: ...11 DEVELOPMENT UNIT A024 April 30 88 22...
Страница 373: ...I April 30 88 24...
Страница 375: ...13 PAPER TRANSPORT A024 April 30 88 26...
Страница 377: ...14 FUSING UNIT A024 April 30 88 28...
Страница 380: ...15 PAPER EXIT A024 April 30 88 10 6 30...
Страница 382: ...16 ELECTRICAL SECTION 1 A024 April 30 88 32...
Страница 384: ...17 ELECTRICAL SECTION 2 A024 April 30 88...
Страница 386: ...INDEX NO SYMBOL NO...
Страница 387: ......
Страница 390: ...19 FUSING LAMP DRIVE BOARD A024 April 30 88 38...
Страница 396: ...22 AC MAIN HARNES A024 April 30 88 113 118 103 44...
Страница 398: ...23 DC MAIN HARNESS A024...
Страница 400: ...24 FUSING UNIT HARNESS A024 2 101 104 April 30 88...
Страница 402: ...25 COUNTER HARNESS A024 50...
Страница 405: ...26 HARNESS PAPER FEED A024 1 J 52...
Страница 407: ...27 SPECIAL TOOL A024 April 30 88...
Страница 409: ...28 DECAL AND DOCUMENT April 30 88...
Страница 410: ...o BI 12 15 8 1 6 WARNING HIGH TEMP 9...
Страница 412: ...DF 39 A419...
Страница 414: ...1 DOCUMENT FEEDER I A419 April 30 88 2...
Страница 417: ...2 DOCUMENT FEEDER II A419 April 30 88 4...
Страница 420: ...3 DOCUMENT FEEDER Ill A419 April 30 88 6...
Страница 425: ...5 DF HARNESS A419 April 30 88 10...
Страница 427: ...CS 2070 A414...
Страница 428: ...1 Mini Sorter A414 2 2 Bin Motor Board A414 4 3 Sorter Harness A414 6 Parts lndex 9...
Страница 429: ...1 MINI SORTER A414 April 30 88 2...
Страница 434: ...RT 15 A912...
Страница 435: ...1 LCT I A912 2 2 LCT II A912 4 3 LCT III A912 6 4 LCT Board A912 8 5 LCT Harness A912 10 Parts Index 13...
Страница 436: ...1 LCT I A912 April 30 88...
Страница 438: ...2 LCT II A912 4...
Страница 440: ...3 LCT Ill A912 April 30 88...
Страница 442: ...3 SORTER HARNESS A414 April 30 88 120 115...
Страница 447: ...5 LCT HARNESS A912 April 30 88 110 122 10...
Страница 449: ...RE 11 A906...
Страница 450: ......
Страница 451: ...1 RE 11 A906 April 30 88 2 5 2 4 _ _ _ 2...
Страница 453: ...PARTS INDEX...
Страница 456: ...INTERFACE BOARD TYPE E A426...
Страница 457: ...1 interface Board A426 2 Parts Index 5...
Страница 460: ...PARTS INDEX...
Страница 462: ...SORTER ADAPTER TYPE E A918...
Страница 463: ...1 SORTER ADAPTER A918 April 30 88 2...