Service Manual

ADU/PAPER EXIT SECTION

2-33

II UNIT EXPLANATION

(2) When paper reverse

Paper that has been conveyed is sent back by means of the reverse rotation of the ADU roller. At this

time, the switching sheet uses its own elastic power to block the conveyance path to the ADU convey-

ance roller/2, and the paper is conveyed to the loop roller of the tray 2. As a result, the paper is turned

inside out to be copied on the back side after passing through the same route as that for the paper

sent from the tray 2.

B. Paper reverse operation (7145)

[1] Loop roller [5] DB

[2] PS4 (ADU sensor) [6] ADU roller

[3] Switching sheet [7] ADU conveyance roller/2

[4] ADU driven roller

[1] Start of 1st paper conveyance [4] Start of reverse operation of 2nd paper

[2] Start of revere operation of 1st paper [5] Start of 3rd paper conveyance

[3] Start of 2nd paper conveyance [6] Start of reverse operation of 3rd paper

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[7]

[2]

[3]

[4]

[5]

[1]

[6]

[1] [2] [3] [4] [5] [6]

PS4 (ADU sensor)

M6 (ADU motor) F

M9 (Paper feed motor)

600mm/s

230mm/s