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Chapter 7
7-1
7.1 Construction
7.1.1 Outline
0010-8034
The image formation system has the following principal functions:
T-7-1
7.1.2 Major Components
0010-8035
F-7-1
Item
Description
Pre-exposure
LED array (64 LEDs)
on/off control
Primary charging control
DC constant current control: switched over 3 settings in service mode
Grid bias control
DC constant voltage control: determined by potential control
Developing bias control
AC constant voltage control: switched over (frequencies) in service
mode
DC constant voltage control: determined by potential control
Dust-colleting roller bias
control
DC constant voltage control: on/off control only (+1000 V)
Pre-transfer charging control
AC constant current control: fuzzy control by environment sensor
DC constant voltage control: on/off control only
transfer guide bias control
DC constant voltage control: switched over according to temperature/
humidity
(high-humidity envir200 V, low/normal envir600 V)
Transfer charging control
DC constant current control: fuzzy control by environment sensor
Separation charging control
DC constant current control: fuzzy control by environment sensor and
toner deposit
AC constant voltage control
Potential control
[1] determines grid bias
[2] sets optimum laser output
[3] sets optimum developing bias (DC)
Wire auto cleaning
[1] primary charging wire
[2] pre-transfer charging wire
Summary of Contents for IMAGERUNNER 7086
Page 20: ...Chapter 1 Introduction ...
Page 46: ...Chapter 2 Installation ...
Page 88: ...Chapter 3 Basic Operation ...
Page 94: ...Chapter 4 Main Controller ...
Page 116: ...Chapter 5 Original Exposure System ...
Page 165: ...Laser Exposure Chapter 6 ...
Page 175: ...Chapter 7 Image Formation ...
Page 231: ...Chapter 8 Pickup Feeding System ...
Page 287: ...Chapter 9 Fixing System ...
Page 312: ...Chapter 10 External and Controls ...
Page 346: ...Chapter 11 MEAP ...
Page 350: ...Chapter 12 RDS ...
Page 360: ...Chapter 13 Maintenance Inspection ...
Page 375: ...Chapter 14 Standards Adjustments ...
Page 407: ...Chapter 15 Correcting Faulty Images ...
Page 433: ...Chapter 16 Self Diagnosis ...
Page 460: ...Chapter 17 Service Mode ...
Page 559: ...Chapter 18 Upgrading ...
Page 583: ...Chapter 19 Service Tools ...
Page 588: ...APPENDIX ...
Page 615: ......