AL-840 (serv.man7). AL800 840 Service Manual-Simulation codes - Sharp Copying Equipment Service Manual (repair manual). Page 7

Section

Purpose

Item

Function (Purpose)

Code

Main

Sub

Optical (Image
scanning)

Operation test/check

Operation

Used to check the operation of the
scanner (reading) unit and its control
circuit.

1

1

Operation test/check

Operation

Used to check the operation of the copy
lamp and its control circuit.

5

3

Operation data
output/Check
(Display/Print)

Operation

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

63

1

Operation data
output/Check
(Display/Print)

Operation

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

2

Operation data
output/Check
(Display/Print)

Operation

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.

64

2

Image process
(Photoconductor/
Developing/Transfer/
Cleaning)

Operation test/check

Used to check the developing bias
voltage, the main charger voltage, and
the transfer charger voltage and the
operation of their control circuit.

8

1

Adjustment/Operation
test/check

Used to adjust and check the operation
of the developing bias voltage, the main
charger voltage, and the transfer charger
voltage, and their control circuit.

2

Operation test/check

Used to check the operation of each
voltage of the main charger and its
control circuit.

3

Photo
conductor

Operation data
output/Check
(Display/Print)

Counter

Used to check the print count value of
the photoconductor.

22

12

Data clear

Counter

Used to clear the photoconductor drum
counter.

24

7

Operation (Display/
Operation key)

Operation test/check

Operation

Used to check the operation of the
operation panel display lamps and the
control circuit.

5

1

Fixing (Fusing)

Setting

Specifications

Operation
mode
(Common)

Used to set the CE mark conforming
operation mode. (For prevention against
flicker when driving the fusing heater
lamp)

26

30

Operation test/check

Operation

Used to check the operation of the
heater lamp and its control circuit. Used
to check the operation of the fan motor
and its control circuit.

5

2

Setting

Operation

Used to set the fusing temperature.

43

1

Setting

Operation

Used to set the fusing temperature after
20th sheet in the multi print mode.

4

DRIVE

Operation test/check

Operation

Used to check the operation of the main
drive (excluding the scanner (reading)
section) section.

25

1

PCU

Operation data
output/Check
(Display/Print)

Specifications

Operation
mode
(Common)

Used to check the machine (hardware)
specifications.

26

7

Setting

Specifications

Operation
mode
(Common)

Used to set MCU memory YES/NO.

39

Others

Software

Used to check the ROM version.

22

14

ICU

Adjustment

Picture quality

Used to adjust the main scanning
direction print image position. (Main
scanning direction void area adjustment)

50

10

Printer

Operation test/check

Operation

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

64

1

Laser (Exposure)

Setting

Specifications

Operation
mode
(Common)

Used to set the scanner (writing) motor
OFF timing.

26

40

Operation test/check

Operation

Used to check the operation of the
scanner (writing) motor and its control
circuit.

25

10

8 – 7