AL-1045 (serv.man8). Operational descriptions - Sharp Copying Equipment Service Manual (repair manual). Page 7

AL-1555 OPERATIONAL DESCRIPTIONS 7 - 7

1) When the power is turned on, the detection gear 38T is rotated in

the arrow direction by the detection gear 20T to push the micro-
switch (process detection switch) installed to the machine sensor
cover, making a judgement as a new drum.

2) When the detection gear 38T turns one rotation, there is no gear

any more and it stops.
The latch section of the 38T gear is latched and fixed with the
projection of the process cover.

The SPF (Single Path Feeder) is installed to the AL-1456 as a stan-
dard provision, and it automatically copies up to 30 sheets of docu-
ments of a same size. (Only one set of copies)

a

PPD1 jam

PPD1 does not turn off within 4 sec after turning 
on the resist roller.

b

PPD2 jam

PPD2 is off immediately after turning on the 
resist roller.

PPD2 does not turn off within 1.2 sec after 
turning off the resist roller.

c

POD jam 

POD does not turn on within 2.9 sec after turning 
on the resist roller.

POD does not turn off within 1.5 sec - 2.7 sec 
after turning off PPD2.

Gear 20T

Process detection switch

Gear 38T

1

Pickup roller

2

Sheet of document for 
paper feed

3

Set detection ACT

4

Paper stopper

5

Document feed roller

6

Separation sheet

7

Paper entry sensor

8

PS roller D

9

Transport follower roller

10

Paper exit roller

11

Paper exit follower roller

12

Document tray

Gear notch

Gear pawl

Projection

Gear notch

Gear pawl

Projection

2

1

3

4

5

6

7

8

9

10

11

12