The pickup unit consists of pickup and transport rollers. When the Start Key signal or Original Feed signal is input, the ADF motor (M2001) turns in the normal

direction and then the pickup solenoid (SL2001) turns on. The pickup unit lowers and the pickup and transport rollers rotate to feed the paper. The shutter moves

up in conjunction with the pickup unit. A separation pad is used to prevent multiple sheets from being fed at the same time.

When the original reaches the registration roller where is it looped, the pickup solenoid (SL2001) turns off and the pickup unit roller rises. Next the registration

solenoid (SL2002) turns on and the original is fed by the registration roller. At this time, the pickup roller drive shaft which is rotated via the spring one-way clutch

is stationary at the highest position in the pickup unit. The pickup roller incorporating a one-way clutch is rotated by the friction against the paper.

ADF motor (M2001)

4.2.4 Reversal Operation

LaserBase MF6530 / / LaserBase MF6540PL / LaserBase MF6550 / KaserBase MF6560PL / / LaserBase MF6580PL

There are two types of reversal operations, reversal from the top side to the reverse side and reversal from the reverse side to the top side. However, since their

operating principles are the same, only reversal from the top side to the reverse side is described below.

a. When the ADF motor (M2001) turns and the registration solenoid (SL2002) turns on, the registration roller turns to feed the paper along the platen guide for

surface scanning. After completion of scanning, the paper is fed to the delivery unit by the transport roller 1 and delivery roller.

4-4

Download Free Service Manual And Resetter Printer at http://printer1.blogspot.com

T-4-3

Description

distance from the position where the original

placement sensor (SR2002) turns on to the position

where the original placement sensor (SR2002) turns

off.

Pickup solenoid (SL2001)

Shutter

Feed roller