AL-1000, AL-1010 (serv.man9). AL1000 Operational Descriptions - Sharp Copying Equipment Service Manual (repair manual). Page 12

5. The solenoid turns off to close the gate and return to the in-

itial state.

(1) When the power is turned on:

PPD or POD is ON when the power is turned on.

(2) Copy operation

a. PPD1 jam 1) PPD1 does not turn off within 4 sec

after turning on the resist roller.

b. PPD2  jam 1) PPD2 is off immediately after turning on

the resist roller.

2) PPD2 does not turn off within 1.2 sec

after turning off the resist roller.

c. POD jam

1) POD does not turn on within 2.9 sec

after turning on the resist roller.

2) POD does not turn off within 1.5 sec 

∼

2.7 sec after turning off PPD2.

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 microswitch (process detection switch) installed to
the machine sensor cover, making a judgement as a new
drum.

2. When the detection gear 38Y 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.

OF

MPFS

F

A

C

Gear 20T

Process detection switch

Gear 38T

Gear notch

Gear pawl

Projection

Gear notch

Gear pawl

Projection

AL-1000/1010

7-8