2FD/2FF/2FG
2-1-15
(3) Single component developing system
This machine uses the single component developing system, and reversal processing is performed with a + charged
drum (a-Si) and a + charged magnetic toner.
With the single component developing system, toner is electrically charged by friction with the developing sleeve and +
charged when it passes through the magnetic doctor blade. The toner that has passed through the magnetic doctor
blade forms a uniform layer on the developing sleeve. When the toner layer comes to the location where the developing
sleeve is the nearest to the drum, toner moves between the drum and the developing sleeve by an electric field of the
magnetic pole. Then, when the developing sleeve rotates and passes through the nearest location to the drum, on the
portion of the drum that has been exposed to light, toner is attracted toward the drum by potential difference between the
developing bias and the drum surface and development is performed. On the other hand, on the portion of the drum that
has not been exposed to light, toner is attracted toward the sleeve and development is not performed. When toner
comes to an area where the gap between the drum and the developing sleeve is large, an electric field disappears and
toner does not leave the developing sleeve. Development is complete.
North pole
South pole
Developing sleeve
Drum
Magnetic toner blade
Toner
Figure 2-1-18 Single component developing system
Summary of Contents for AD-63
Page 340: ...AD 63...
Page 343: ...3CX 1 1 2 1 1 2 Part names Figure 1 1 1 Duplex unit...
Page 344: ...3CX 1 1 3 1 1 3 Machine cross section Figure 1 1 2 Paper path Duplex unit...
Page 360: ...DF 78...
Page 363: ...3B5 1 1 2 1 1 2 Part names Figure 1 1 1 1 Intermediate tray 2 JAM release lever 3 Eject tray...
Page 397: ...J 1402...
Page 400: ...3B6 1 1 2 1 1 2 Part names Figure 1 1 1 1 Job separator tray 2 LED...
Page 401: ...3B6 1 1 3 1 1 3 Machine cross section Figure 1 1 2 Paper path...
Page 402: ...3B6 1 1 4 1 1 4 Drive system Figure 1 1 3 1 Gear 20 2 Gear 28 3 Gear 28 4 Eject roller gear...
Page 413: ...PF 70...
Page 415: ...1 1 2 3CC 2 4 Appendixes Timing chart No 1 2 4 1 Timing chart No 2 2 4 2 Wiring diagram 2 4 3...
Page 417: ...3CC 1 1 2 1 1 2 Parts names 1 Upper drawer 2 Lower drawer 3 Desk left cover Figure 1 1 1 3 1 2...
Page 418: ...3CC 1 1 3 1 1 3 Machine cross section Paper path Figure 1 1 2 Machine cross section...
Page 450: ...RA 1...
Page 452: ...3CP 1 1 1 1 1 1 Part names Figure 1 1 1 Switchback unit Switchback unit open close lever...
Page 453: ...3CP 1 1 2 1 1 2 Machine cross section Figure 1 1 2 Paper path Switchback unit...
Page 470: ...PF 75...
Page 472: ...1 1 2 5FF 2 4 Appendixes Timing chart No 1 2 4 1 Timing chart No 2 2 4 2 Wiring diagram 2 4 3...
Page 475: ...5FF 1 1 3 1 1 3 Machine cross section Paper path Figure 1 1 3 Machine cross section...
Page 513: ......
