COPYRIGHT © 2001 CANON INC.
2000 2000 2000 2000
CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 4 IMAGE FORMATION SYSTEM
4-1 P
1 Outline of Processes
1.1 Outline
T04-101-01 shows the functions of and the methods used in the image formation system:
Item
Description
Photosensitive drum
OPC (30-mm dia.)
drum cleaning
cleaning blade
Developing assembly
Developing cylinder (20-mm dia.)
Development method:dry, 1-component, toner projection
Toner:magnetic, negative
Pre-exposure (LAMP2)
Fuse lamp (8 pc.)
ON/OFF control (activated in sync with main motor)
Drum sensor (U701)
Primary charging roller DC bias corrected to temperature around
photosensitive drum
Environment sensor (S3)
Primary charging roller AC bias corrected to suit humidity reading
Primary charging roller auto
Pad push-on type
cleaning
Primary charging roller bias
DC constant voltage control (-500 to -850 V)
control
AC constant current control (2000 to 2300 µA; about 1800 Hz)
Developing bias control
DC constant voltage control (0 to -650 V)
AC constant voltage control (810 Vp-p; about 1800 Hz)
Transfer charging roller bias
Transfer bias:DC constant current control (switching
control
among +15 µA, +10 µA, +7 µA) + DC constant voltage
control (up to 7 kVmax)
Cleaning bias: DC constant voltage control (-2.6 kV)
Transfer guide bias control
DC constant voltage (-600 v)
Separation static eliminating
DC constant voltage (switching between -2.3 KV and -3.0 KV)
bias control
T04-101-01
Summary of Contents for iR2200 Series
Page 8: ......
Page 12: ......
Page 30: ......
Page 32: ......
Page 54: ......
Page 86: ......
Page 90: ......
Page 94: ......
Page 96: ......
Page 124: ......
Page 142: ......
Page 152: ......
Page 160: ......
Page 168: ......
Page 178: ......
Page 180: ......
Page 222: ......
Page 224: ......
Page 278: ......
Page 280: ......
Page 298: ......
Page 300: ......
Page 324: ......
Page 368: ......
Page 386: ......
Page 388: ......
Page 404: ......
Page 414: ......
Page 416: ......
Page 422: ......
Page 424: ......
Page 434: ......
Page 436: ......
Page 440: ......
Page 468: ......
Page 473: ......
Page 550: ......
Page 552: ......
Page 658: ......
Page 704: ......
Page 706: ......
Page 754: ......
Page 756: ......
Page 760: ......