AL-840 (serv.man7). AL800 840 Service Manual-Simulation codes - Sharp Copying Equipment Service Manual (repair manual). Page 21

63 - 1

Purpose

Operation data output/Check (Display/Print)

Function
(Purpose)

Used to check the result of shading correction. (The shading correction data is displayed.)

Section

Optical (Image scanning)

Item

Operation

Operation/
Procedure

When the start button is pressed, the scanner unit is shifted to the shading sheet (white) position and the scanner
lamp is lighted for 10 sec.
During the above operation, one pixel at the center of CCD detects the white level for every second and the
value is displayed on the copy quantity display in real time. 
The display value ranges from 0 to 255.

Note

63 - 2

Purpose

Operation data output/Check (Display/Print)

Function
(Purpose)

Used to check the result of shading correction (dark component). (The shading correction (dark component) data
is displayed.)

Section

Optical (Image scanning)

Item

Operation

Operation/
Procedure

Note

64 - 1

Purpose

Operation test/check

Function
(Purpose)

Used to check the operation (self print operation) of the printer section.

Section

Printer

Item

Operation

Operation/
Procedure

1) After completion of simulation, warming up is started.

2) After completion of warming up, the ready lamp is lighted.

3) Set the copy quantity.

4) Press the start key.

Print operation is made in the 1 by 2 mode (1-line print and 2-lines blank pattern) to make the set quantity of
copy.

Note

64 - 2

Purpose

Operation data output/Check (Display/Print)

Function
(Purpose)

Used to set the scanner (reading) section’s operation ENABLE/DISABLE. In case of a breakdown of the scanner
(reading) section, if this simulation is set to DISABLE, the machine can be used only as a printer.

Section

Optical (Image scanning)

Item

Operation

Operation/
Procedure

Note

8 – 21