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■ Major Components of Image Formation System
Primary Charging Roller
Brush Roller
Transfer Roller
Developing Cylinder
Toner Feed Screw
Toner Container
Toner Feed Path
Developing Assembly
Photosensitive Drum
Cleaning Blade
Drum Unit
Waste Toner Feed Screw
Toner Feed Screw
Name
Function
Toner cartridge
Toner cartridge filled with the toner for supply
Drum unit
Unit consisting of the photosensitive drum, primary charging roller, etc.
Brush roller
Rotates in connection with the primary charging roller to clean its surface.
Primary charging roller
Rotates in connection with the photosensitive drum to cause it negatively charged.
Cleaning blade
Scrapes off the residual toner on the photosensitive drum.
Waste toner feed screw
Feeds the toner scraped off by the cleaning blade to the waste toner container.
Photosensitive drum
Forms images on the surface of the photosensitive drum.
Transfer roller
Applies positive charge to the back of a paper to cause the toner to be transferred to it.
Developing cylinder
Transfers the toner in the developing unit to the photosensitive drum.
Developing assembly
Unit consisting of the developing cylinder, developing blade, etc.
Toner feed screw(Inside developing unit)
Feeds the toner supplied from the toner feed distance into the developing unit.
Toner feed screw(Inside toner feed dis-
tance)
Feeds the toner supplied from the toner cartridge to the developing unit.
Toner feed path
A path to feed toner supplied from the Toner Container to the Developing Assembly
■ Image Formation Process
The image formation system of the machine mainly consists of the photosensitive drum, primary charging roller, developing
cylinder, transfer charging roller, static eliminator, and cleaning blade. The image formation process around the drum unit contains
the six blocks.
2. Technology
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Summary of Contents for imagerunner advance 4551i
Page 19: ...Product Overview 1 Product Lineup 7 Features 13 Specifications 16 Name of Parts 26 ...
Page 155: ...Periodical Service 3 Consumable Parts List 143 Cleaning Check Adjustment Locations 146 ...
Page 392: ...Error Jam Alarm 7 Overview 380 Error Code 383 Jam Code 509 Alarm Code 520 ...
Page 545: ...Service Mode 8 Overview 533 COPIER 549 FEEDER 845 SORTER 851 BOARD 871 ...
Page 892: ...Unpacking 1 2 1200 mm 840 mm 769 mm 1230 mm 2430 mm 3 9 Installation 879 ...
Page 895: ...3 4 NOTE Keep the removed screws for relocating the host machine 2x 5 6 7 9 Installation 882 ...
Page 896: ...8 9 10 1x Installing the Air Filter 1 9 Installation 883 ...
Page 897: ...2 3 Installing the Drum Unit 1 2 3 9 Installation 884 ...
Page 899: ...8 NOTE The screw removed at procedure 4 is used 1x 9 10 11 12 9 Installation 886 ...
Page 923: ...5 6 NOTE Use the screws and Rubber Caps removed in step 1 2x 7 2x 9 Installation 910 ...
Page 935: ...7 1x 8 9 6x 10 2x 9 Installation 922 ...
Page 936: ...11 Installing the NFC Kit 1 2 2x 3 TP M3x4 1x 9 Installation 923 ...
Page 938: ...4 5 1x 6 9 Installation 925 ...
Page 985: ...8 2x 2x TP M4x8 Black When installing the USB Keyboard 1 9 Installation 972 ...
Page 991: ...7 4x 8 1x 1x Lower Cover 9 1x 10 1x 1x 9 Installation 978 ...
Page 992: ...11 1x 1x 12 1x 13 TP M3x12 2x 14 4x TP M3x6 9 Installation 979 ...
Page 997: ...Installation Procedure 1 2 2x 3 2x 4 6x 5 4x 9 Installation 984 ...
Page 998: ...6 7 NOTE Do not close the Wire Saddle 1x 1x 8 9 9 Installation 985 ...
Page 1003: ...2 1x 1x 3 2x 2x 4 9 Installation 990 ...
Page 1012: ...2 1x 1x 3 2x 2x 4 9 Installation 999 ...
Page 1014: ...7 CAUTION The connector must be contacted TP㸹M3x6 3x 1x 8 4x 9 9 Installation 1001 ...
Page 1016: ...13 4x 14 15 Binding M4x16 Binding M3x16 2x M3x16 M4x16 16 Binding M4x6 1x 9 Installation 1003 ...
Page 1023: ...Installation Procedure Preparation 1 4x 2 1x 1x 3 2x 9 Installation 1010 ...
Page 1029: ...4 5 1x 1x 9 Installation 1016 ...
Page 1048: ...3 2x TP M3x8 Black 4 2x TP M3x6 5 9 Installation 1035 ...
Page 1053: ... Installing the Removable HDD Kit 1 2x 2x 2 3 1x 4 9 Installation 1040 ...
Page 1065: ...3 2x TP M3x8 Black 4 2x TP M3x6 5 9 Installation 1052 ...
Page 1071: ... Installing the Removable HDD Kit 1 2x 2x 2 3 1x 4 9 Installation 1058 ...