Chapter 7
7-1
7.1 Construction
7.1.1 Overview
0015-4473
iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
The following shows the functions of and the methods used by the machine's image formation system:
T-7-1
7.1.2 Major Components
0015-4474
iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
The following shows the major components of the machine's image formation system:
F-7-1
7.2 Image Formation Process
7.2.1 Overview
0015-4475
iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
The machine's image formation process consists of the following 8 steps:
Item
Description
Photosensitive drum
amorphous silicon (80-mm dia. A-Si)
cleaning: by blade
Developing assembly
developing cylinder (24.5-mm dia.)
developing method: dry, 1-component toner projection
toner: magnetic negative toner
Pre-exposure
LED array
on/off control
Potential sensor
potential control
[1] sets primary current
[2] sets laser output
[3] sets developing bias (DC)
wire auto cleaning
[1] primary charging wire
[2] pre-transfer charging wire
[3] transfer charging wire
[4] separation charging wire
Primary charging control
DC constant current control: set by result of potential control
Grid bias control
fixed voltage control; fixed by varistor
Developing bias control
AC constant voltage control: on/off control only
DC constant voltage control: set by result of potential control
dust-collecting roller bias control
DC non-control
pre-transfer charging control
AC constant voltage control: fuzzy control by environment sensor
DC constant current control: on/off only
Transfer charging control
DC constant current control: fuzzy control by environment sensor
Separation charging control
AC constant voltage control
DC constant current control: fuzzy control based on output of environment sensor and drum surface
potential
Developing assembly
Dust-colleting roller
Pre-transfer charging assembly
Transfer guide
Transfer charging assembly
Separation charging assembly
Cleaner unit
Pre-exposure
Primary charging assembly
Potential sensor
Summary of Contents for iR5055
Page 1: ...Feb 29 2008 Service Manual iR5075 5065 5055 Series ...
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Page 27: ...Contents 19 1 2 List of Solvents Oils 19 2 ...
Page 28: ...Contents ...
Page 29: ...Chapter 1 Introduction ...
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Page 59: ...Chapter 2 Installation ...
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Page 104: ...Chapter 2 2 42 F 2 156 2 1 ...
Page 105: ...Chapter 3 Basic Operation ...
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Page 115: ...Chapter 4 Main Controller ...
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Page 135: ...Chapter 5 Original Exposure System ...
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Page 169: ...Chapter 6 Laser Exposure ...
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Page 179: ...Chapter 7 Image Formation ...
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Page 217: ...Chapter 8 Pickup Feeding System ...
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Page 275: ...Chapter 9 Fixing System ...
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Page 321: ...Chapter 10 External and Controls ...
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Page 336: ...Chapter 10 10 10 F 10 7 2 Remove the check mark from SNMP Status Enabled ...
Page 337: ...Chapter 10 10 11 F 10 8 ...
Page 361: ...Chapter 11 MEAP ...
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Page 409: ...Chapter 12 e maintenance imageWARE Remote ...
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Page 421: ...Chapter 13 Maintenance and Inspection ...
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Page 433: ...Chapter 14 Standards and Adjustments ...
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Page 465: ...Chapter 15 Correcting Faulty Images ...
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Page 497: ...Chapter 16 Self Diagnosis ...
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Page 529: ...Chapter 17 Service Mode ...
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Page 601: ...Chapter 18 Upgrading ...
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Page 636: ...Chapter 18 18 32 F 18 59 2 Select the data to download F 18 60 3 Click Start ...
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Page 639: ...Chapter 19 Service Tools ...
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