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d-Color MF4003/MF3303

P THEORY OF OPERATION > 1. d-Color MF4003/MF3303

P-20

[1] Color PC motor (M2) [2] Main motor (M1)

[3] Photoconductor/K [4] Photoconductor/C

[5] Photoconductor/M [6] Photoconductor/Y

(3)Operation

(a)Photoconductor drive mechanism

• Two independent photoconductor motors (for color and black) are used for the drive mechanism to suppress incorrect color registration

and uneven pitch.

Photoconductor/K drive mechanism

• The main motor drives the photoconductor/K.

• The main motor is the common source that provides drive to manual bypass feed, tray feed, registration roller, transfer belt, and

others.

• Drive is transmitted to the photoconductor when the triangular-prism-shaped shaft is engaged with the mating coupling part.

[1]

[2]

[3]

[4]

[1] Photoconductor K [2] Photoconductor drive gear/K

[3] Main motor (M1) [4] Coupling

Photoconductor/Y, M, C drive mechanism

• The photoconductors/Y, M, C are driven by the color PC motor.

• Drive is transmitted to each of the photoconductors when the triangular-prism-shaped shaft is engaged with the mating coupling part.

[5]

[6]

[1]

[2]

[3]

[4]

[1] Color photoconductor gear/Y [2] Color PC motor (M2)

[3] Photoconductor/C [4] Photoconductor/M

[5] Photoconductor/Y [6] Coupling

(b)Photoconductor cleaning

• The toner image on the photoconductor is transferred to the transfer belt. (1st transfer) Part of the toner image that is not transferred is

left on the surface of the photoconductor. The residual toner is scraped off by the cleaning blade.

Service Manual

Y119930-3

Olivetti d-Color MF4003 User Manual

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