Chapter 6 Principles of Operation
6 – 22
3.1.3 Multiple sheet feed prevention
The sheets set in a tray or a cassette may be stuck together at the edge due to microscope curl-up
along the cutting plane caused by the guillotine, etc. The stuck sheets cause a multiple sheet feed or a
jam.
The mechanism for separating these stuck sheets is called "ARRF (Active Retard Roll Feeder)
method".
The sheets are carried by the Paper Feed Roller to the position between the Paper Feed Roller and the
Separator Roller. The Separator Roller is being pushed toward the Paper Feed Roller by a spring
tension.
When two sheets are carried concurrently, the top sheet is separated from the bottom sheet by the
friction between the Separator Roller allowing only the top sheet to be fed.
When only one sheet is carried, two kinds of friction are concurrently generated between the Paper
Feed Roller and the sheet (carrying force), and between the Separator Roller and the sheet (retaining
force). However, the friction by the Separator Roller is released because the Separator Roller turns free
by the torque limiter (CLUTCH ASSY FRICTION) provided on its shaft.
The release of the Retard Roll friction allows the sheet to be fed by the Paper Feed Roller.
Ten06007KA
PAPER FEED ROLLER (Feed Roll)
PAPER FEED ROLLER (Takeaway Roll)
SEPARATOR ROLLER
SEPARATOR ROLLER
SEPARATOR ROLLER CLUTCH
Summary of Contents for 5110cn - Color Laser Printer
Page 1: ...Dell 5110cn Service Manual 12 Nov 2007 ...
Page 11: ...Intro 9 4 5 6 Caution label regarding Print Head Ida_Sec00_008FA ...
Page 17: ...Chapter 1 Troubleshooting Chapter 1 Troubleshooting CONTENTS ...
Page 127: ...1 110 Chapter 1 Troubleshooting 3 Skew 4 Linearity 5 Magnification Error ...
Page 178: ...Chapter 2 Operation of Diag Chapter 2 Operation of Diag CONTENTS ...
Page 255: ...3 5 Chapter 3 Removal and Replacement Procedures RRPs Blank Page ...
Page 263: ...3 13 Chapter 3 Removal and Replacement Procedures RRPs Blank Page ...
Page 303: ...3 53 Chapter 3 Removal and Replacement Procedures RRPs Blank Page ...
Page 316: ...3 66 Chapter 3 Removal and Replacement Procedures RRPs RRP3 10 Blank Page ...
Page 317: ...3 67 Chapter 3 Removal and Replacement Procedures RRPs RRP3 10 Blank Page ...
Page 320: ...3 70 Chapter 3 Removal and Replacement Procedures RRPs RRP3 12 Blank Page ...
Page 321: ...3 71 Chapter 3 Removal and Replacement Procedures RRPs RRP3 12 Blank Page ...
Page 334: ...3 84 Chapter 3 Removal and Replacement Procedures RRPs RRP4 4 Blank Page ...
Page 335: ...3 85 Chapter 3 Removal and Replacement Procedures RRPs RRP4 4 Blank Page ...
Page 361: ...3 111 Chapter 3 Removal and Replacement Procedures RRPs Blank Page ...
Page 365: ...3 115 Chapter 3 Removal and Replacement Procedures RRPs Blank Page ...
Page 373: ...3 123 Chapter 3 Removal and Replacement Procedures RRPs Blank Page ...
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Page 435: ...3 185 Chapter 3 Removal and Replacement Procedures RRPs Blank Page ...
Page 441: ...3 191 Chapter 3 Removal and Replacement Procedures RRPs RRP9 1 Blank Page ...
Page 457: ...3 207 Chapter 3 Removal and Replacement Procedures RRPs RRP9 7 Blank Page ...
Page 475: ...Chapter 5 Parts List Chapter 5 Parts List CONTENTS ...
Page 482: ...5 7 Chapter 5 Parts List Blank Page ...
Page 495: ...5 20 Chapter 5 Parts List PL4 2 Retard Regi assy 2 2 Illustration ...
Page 497: ...5 22 Chapter 5 Parts List PL5 1 Chute Assy In Out 1 4 Illustration ...
Page 499: ...5 24 Chapter 5 Parts List PL5 2 Chute Assy In Out 2 4 Illustration ...
Page 503: ...5 28 Chapter 5 Parts List PL5 4 Chute Assy In Out 4 4 Illustration ...
Page 509: ...5 34 Chapter 5 Parts List PL7 2 Development 2 2 Illustration ...
Page 511: ...5 36 Chapter 5 Parts List PL8 1 Drive Illustration 1 3 3 2 P481 P491 Ten05015KA ...
Page 517: ...5 42 Chapter 5 Parts List Blank Page ...
Page 528: ...6 9 Chapter 6 Principles of Operation Blank Page ...
Page 540: ...6 21 Chapter 6 Principles of Operation 3 1 2 Reference diagram ...
Page 542: ...6 23 Chapter 6 Principles of Operation Blank Page ...
Page 558: ...6 39 Chapter 6 Principles of Operation 3 8 2 Reference diagram ...
Page 588: ...7 7 Chapter 7 Wiring Diagrams and Signal Information Blank Page ...