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DESCRIPTION OF
PRINT OPERATIONS
OF5750/5950 Series January 2001
B - 8
4) Developing
Toner is attracted to the electrostatic latent image on the EP (image) drum surface to
convert it into a visible toner image. Developing takes place at the contact between the
EP (image) drum and the developing roller.
1
As the toner supply roller rotates while rubbing on the developing roller, a friction
charge is generated between the developing roller and the toner, allowing the toner
to be attracted to the developing roller. (The developing roller surface is charges
positive and the toner, negative.)
-265V
-800V
-100V -800V
-800V
Developing roller
Toner
Image drum
-100V
Exposed
part
Exposed
part
An illustration of activities at the contact point of the
image drum surface and the developing roller (arrow
marks denote the direction of the electric field).
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2
The toner attracted to the developing roller is scraped off by the doctor blade, form-
ing a thin coating of toner on the developing roller surface.
3
Toner is attracted to the exposed part (low-potential part) of the EP (image) drum at
the contact between the EP (image) drum and the developing roller, making the
electrostatic latent image visible.
Doctor blade
Developing roller
EP drum
Charge roller
Toner supply roller
Summary of Contents for OKIFAX 5950
Page 9: ...CHAPTER 1 GENERAL INFORMATION ...
Page 101: ...OF5750 5950 Series January 2001 1 92 1 6 21 NIC Information ...
Page 107: ...CHAPTER 2 INSTALLATION PROCEDURE ...
Page 264: ...CHAPTER 3 BRIEF TECHNICAL DESCRIPTION ...
Page 272: ...CHAPTER 4 MECHANICAL DISASSEMBLY AND REASSEMBLY ...
Page 277: ...OF5750 5950 Series January 2001 4 5 Appearance of the OKIFAX 5750 5950 ...
Page 302: ...CHAPTER 5 ADJUSTMENTS ...
Page 306: ...CHAPTER 6 CLEANING AND MAINTENANCE ...
Page 341: ...CHAPTER 7 TROUBLESHOOTING AND REPAIR FOR OKIFAX 5750 5950 ...
Page 400: ...Appendix A PC Board Descriptions and Operation ...
Page 491: ...Appendix B DescriptionsofPrintOperation ...
Page 513: ...Appendix C Not used at this time ...
Page 516: ...OF5750 5950 Series January 2001 D 1 Section 1 CABINET ASSEMBLY 27 28 29 ...
Page 518: ...OF5750 5950 Series January 2001 D 3 Section 2 CONTROL PANEL ASSEMBLY 11 ...
Page 520: ...OF5750 5950 Series January 2001 D 5 Section 3 PRINTER ASSEMBLY 53 54 31 10 55 52 34 56 ...
Page 523: ...OF5750 5950 Series January 2001 D 8 Section 4 BASE ASSEMBLY ...
Page 525: ...OF5750 5950 Series January 2001 D 10 Section 5 FRAME ASSEMBLY SCANNER L 31 30 33 32 ...
Page 527: ...OF5750 5950 Series January 2001 D 12 Section 6 FRAME ASSEMBLY SCANNER U ...
Page 529: ...OF5750 5950 Series January 2001 D 14 Section 7 CABLES OPTION BOARDS ...
Page 530: ...OF5750 5950 Series January 2001 D 15 28 29 Section 7 CABLES OPTION BOARDS ...
Page 532: ...Appendix E Not used at this time ...