607
DP-C405/C305/C265
FEB 2008
Ver. 1.1
6.4.3.
Developing
As the OPC drum continues to rotate, it passes by the developer roller. The currently activated
developer roller is charged to a potential approximately DC -410 volts (AC 1,000 Vp-p). Toner is
attracted to the exposed portions of the OPC drum in reverse proportion to the negative charge. The
greatest amount of toner is transferred to the most positive potential. The developer roller rotates at 2.0
times the speed of the OPC drum to ensure a constant supply of toner.
This supplies a layer of toner onto the developer roller. The doctor blade smooths, and evenly
distributes the toner on the developer roller.
6.4.4.
Toner Transfer to the Intermediate Transfer Belt
As the OPC drum rotates, in contact with the Intermediate Transfer Belt, which is rotating at the same
speed. Located under the Intermediate Transfer Belt at the contact point with the OPC drum, the first
bias transfer roller carries a charge approximately 8-12
µ
A for Color mode or 18
µ
A for Monochrome
mode (FTR Current).
This strong potential attracts, and holds the toner from the OPC drum to Intermediate Transfer Belt.
The four color layers are created while the Intermediate Transfer Belt makes one complete rotation.
Any toner remaining on the OPC drum after the transfer to the Intermediate Transfer Belt is scraped off
by the OPC drum cleaning blade, which is always in contact with the OPC drum. This leaves the OPC
drum clean for the next layer of toner to be transferred from the developing roller into the developer.
OPC
Drum
Doctor Blade
-410V
Vp-p : 1000V AC
Developer Roller
Toner Supply Auger
OPC
Drum
First Transfer Roller (FTR)
Intermediate Transfer Belt
Summary of Contents for Workio DP-C305
Page 2: ...2...
Page 3: ...3...
Page 5: ...5...
Page 6: ...6 For PB and Other Destinations not for PU USA Canada...
Page 11: ...11...
Page 12: ...12...
Page 13: ...13...
Page 14: ...14 memo...
Page 220: ...220 FEB 2008 Ver 1 1 DP C405 C305 C265 Color Test Chart 101 P N PJQRC0119Z LDR PJQRC0120Z A3...
Page 232: ...232 FEB 2008 Ver 1 1 DP C405 C305 C265 3 20 720K PM Kit DQ M35S72 DQ M32N72...
Page 400: ...400 FEB 2008 Ver 1 1 DP C405 C305 C265 LVPS CN6 LVPS CN7 Refer to SCN PC Board...
Page 401: ...401 FEB 2008 Ver 1 1 DP C405 C305 C265 LVPS CN8 Europe Specification Only...
Page 404: ...404 FEB 2008 Ver 1 1 DP C405 C305 C265 CST PCB CN603 CST PCB CN604...
Page 405: ...405 FEB 2008 Ver 1 1 DP C405 C305 C265 CST PCB CN605...
Page 406: ...406 FEB 2008 Ver 1 1 DP C405 C305 C265...
Page 407: ...407 FEB 2008 Ver 1 1 DP C405 C305 C265 CST PCB CN606...
Page 408: ...408 FEB 2008 Ver 1 1 DP C405 C305 C265...
Page 409: ...409 FEB 2008 Ver 1 1 DP C405 C305 C265 CST PCB CN607...
Page 410: ...410 FEB 2008 Ver 1 1 DP C405 C305 C265 CST PCB CN608...
Page 412: ...412 FEB 2008 Ver 1 1 DP C405 C305 C265 TRU PCB CN613...
Page 414: ...414 FEB 2008 Ver 1 1 DP C405 C305 C265 RLB PCB CN176...
Page 615: ...615 DP C405 C305 C265 FEB 2008 Ver 1 1 1 2 3 4 5 6 7 8...
Page 752: ...752 FEB 2008 Ver 1 1 DP C405 C305 C265 memo...
Page 847: ...847 DP C405 C305 C265 FEB 2008 Ver 1 1 2 Motor PCBs Fig 5 009 M1 M2 M8 M5 M4 M3 M7 M6 1...
Page 919: ......
Page 920: ...Published in Japan...