Olivetti d-Color MF4003 Service Manual page 69

d-Color MF4003/MF3303
[5] Laser exposure
[6] Developing
[7] 1st transfer
[8] 2nd transfer
[9] Separation
[10] Transfer belt cleaning
[11] Fusing
[12] Photoconductor cleaning
2.6 IMAGE FORMING CONTROL
Fusing motor (M3)
Polygon motor (M7)
Color motor (M2)
Charge bias DC (Y/M/C)
Developing bias DC (Y/M/C)
Main motor (M1)
Charge bias DC (K)
Developing bias DC (K)
Developing bias AC (K)
1nd transfer voltage output
2nd transfer voltage output
TOD
2.7 Process speed
Paper Type/Mode
• Plain paper 243 mm/sec
• Plain paper+
• Recycled paper
• Thick 1 121.5 mm/sec
• Thick 1+
• Thick 2
• Special Paper* 121.5 mm/sec
• Gloss mode 1200 dpi
• *: Special paper (postcard, envelope, label, coated paper)
Y119930-3
Expose photoconductor to a laser beam to develop electrostatic latent image.
The toner, agitated and negatively charged in the developer mixing chamber, is attracted onto the
electrostatic latent image formed on the surface of the photoconductor. It is thereby changed to a
visible, developed image.
A DC positive voltage is applied to the backside of the transfer belt, thereby allowing the visible,
developed image on the surface of each of the photoconductors (Y, M, C, and K) to be transferred
onto the transfer belt.
A DC positive voltage is applied to the backside of the paper, thereby allowing the visible,
developed image on the surface of the transfer belt to be transferred onto the paper.
The paper, which has undergone the 2nd transfer process, is neutralized so that it can be properly
separated from the transfer belt by the paper separator claws.
Residual toner on the surface of the transfer belt is collected for cleaning by cleaning blade.
The visible toner image transferred onto the surface of the paper is melted by the heat of the fusing
roller and fixed to the paper by pressure.
The residual toner left on the surface of the photoconductor is scraped off.
d-Color MF4003
C-15
C PRODUCT OUTLINE > 2. OVERALL COMPOSITION
d-Color MF3303
200 mm/sec
100 mm/sec
100 mm/sec
Service Manual