DOWNLOAD Sharp AL-840 (serv.man7) Service Manual ↓ Size: 103.42 KB | Pages: 22 in PDF or view online for FREE

16 - 0

Purpose

Clear/Cancel (Trouble etc.)

Function
(Purpose)

Used to cancel the self diag U2 trouble.

Section

Item

Trouble

Error

Operation/
Procedure

Note

22 - 5

Purpose

User data output/Check (Display/Print)

Function
(Purpose)

Used to check the total counter value.

Section

Item

Counter

Total

Operation/
Procedure

The total print counter value is displayed in 3 digits of each two times. 
The display is made repeatedly and continuously.

(Example) Total print counter value = 12345

(Display content) 

012

→

Blank

→

345

→

Blank

→

012

(Display time) 

0.7sec 

0.3sec (short)

0.7sec

1.0sec (long)

0.7sec

Note

22 - 12

Purpose

Operation data output/Check (Display/Print)

Function
(Purpose)

Used to check the print count value of the photoconductor.

Section

Image process
(Photoconductor/Developing/Transfer/Cleaning)

Photo conductor

Item

Counter

Operation/
Procedure

The display system and the method are the same as those of SIM 22-5 (Total print counter display).

Note

22 - 14

Purpose

Others

Function
(Purpose)

Used to check the ROM version.

Section

PCU

Item

Software

Operation/
Procedure

The ROM version on the MCU PWB is displayed in 3 digits on the copy quantity display. 
If any trouble occurs in the software operation, check the version with this simulation.

Note

8 – 13

22 - 21

Purpose

Operation data output/Check (Display/Print)

Function
(Purpose)

Used to check the count of use (count of scanning) of the scanner (reading) unit.

Section

Optical (Image scanning)

Item

Counter

Operation/
Procedure

The display system and the method are the same as those of SIM 22-5 (Total print counter display).

Note

24 - 7

Purpose

Data clear

Function
(Purpose)

Used to clear the photoconductor drum counter.

Section

Image process
(Photoconductor/Developing/Transfer/Cleaning)

Photo conductor

Item

Counter

Operation/
Procedure

Note

24 - 13

Purpose

Data clear

Function
(Purpose)

Used to clear the count of use (count of scanning) of the scanner (reading) unit.

Section

Optical (Image scanning)

Item

Counter

Operation/
Procedure

Note

25 - 1

Purpose

Operation test/check

Function
(Purpose)

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

Section

DRIVE

Item

Operation

Operation/
Procedure

The main motor rotates for 30 sec.
During the motor rotation, one of the following two operations is performed depending on installation of the
developer cartridge.

1) When the developer cartridge is installed:

(The following high voltages are outputted.)

*

Main charger voltage

*

Transfer charger voltage

*

Developer bias voltage

2) When the developer cartridge is not installed:

The high voltage is not outputted and the main motor rotates only.

Note

8 – 14

25 - 10

Purpose

Operation test/check

Function
(Purpose)

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

Section

Laser (Exposure)

Item

Operation

Operation/
Procedure

The scanner (write) motor rotates for 30 sec.

Note

26 - 6

Purpose

Setting

Function
(Purpose)

Used to set the destination.

Section

Item

Specifications

Operation/
Procedure

1) The currently set code of the destination is displayed.

2) To change the set content, enter the code of your desired

setting and press the start button.

Destination code

Detected paper size

Set value

Destination

Paper type

Paper width detector ON

Paper width detector OFF

0

Inch series

11 

✕

 8.5/14 

✕

 8.5

8.5 

✕

 5.5/8.5 

✕

 11

1

EX Japan

AB series

A4 (210 

✕

 356 mm)

A5

2

Japan

AB series

A4 (210 

✕

 356 mm)

B5

When the set value is changed, the paper size specification and the fixed, enlarged, and reduced copy magnification
ratios are changed.

Note

26 - 7

Purpose

Operation data output/Check (Display/Print)

Function
(Purpose)

Used to check the machine (hardware) specifications.

Section

PCU

Item

Specifications

Operation mode (Common)

Operation/
Procedure

The currently set code of the machine operation specification is displayed.

MODEL

COPY SPEED

PRINT SPEED

PRINTER FUNCTION

CODE (DISPLAY)

AL-800

8CPM

—

NO

C8

AL-840

8CPM

8PPM

YES

CP8

Note

26 - 20

Purpose

Setting

Function
(Purpose)

Used to set the rear void area YES/NO.

Section

Item

Specifications

Operation mode (Common)

8 – 15

Operation/
Procedure

1) The currently set code of the rear void area YES/NO is displayed. 

2) To change the set content, enter the code of your desired setting and press the start button.

Set code

Rear edge void area

0

YES

1

NO

The rear edge void amount can be adjusted with SIM 50-1.
Be sure to set to "0" (Rear edge void area YES).

Note

26 - 30

Purpose

Setting

Function
(Purpose)

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

Section

Fixing (Fusing)

Item

Specifications

Operation mode (Common)

Operation/
Procedure

1) The currently set code of the CD mark conformity (Flicker prevention) is displayed.

2) To change the set content, enter the code of your desired setting and press the start button. The set content

is stored.

Set code

CE mark conformity operation (Flicker prevention)

0

YES

1

NO

When the power of this machine is turned on, if any lamp flickers during printing, set this setting to "1" (YES). Then the
phenomenon may be prevented or reduced. 

Note

26 - 38

Purpose

Setting

Function
(Purpose)

Used to set the photoconductor drum operation inhibit YES/NO when the life is reached.

Section

Item

Specifications

Operation mode (Common)

Operation/
Procedure

1) The currently set code of the machine operation at photoconductor drum life is displayed. 

2) To change the set content, enter the code of your desired setting and press the start button.

Set code

Machine operation at photoconductor life

0

Operation stop

1

Operation allowed

When this is set to "1," the copy/print operation can be performed even if the photoconductor drum reaches its life (20K).
At that time, the copy/print operation can be performed regardless of the photoconductor drum counter value. 
When set to "0," if the photoconductor drum counter reaches the life (20K), the copy/print operation cannot be performed. 
If the photoconductor drum counter reaches the life (20K) during continuous copy/print operation, the machine completes
its job before disabling the operation.

Note

26 - 40

Purpose

Setting

Function
(Purpose)

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

Section

Laser (Exposure)

Item

Specifications

Operation mode (Common)

8 – 16