DOWNLOAD Sharp AR-C150 (serv.man4) Service Manual ↓ Size: 36.13 MB | Pages: 127 in PDF or view online for FREE

1) Enter the SIM 26-53 mode.

2) Select Enable/Disable with the 10-key.

Disabling = 0: YES
Enabling = 1: NO

3) Press the OK key.

When "0: YES" (Disabling) is selected, the user auto color calibration
(copy color balance, auto density adjustment) menu is not displayed
in the user program mode.

This adjustment must be performed in the following cases:

•

When the original size sensor section is disassembled.

•

When the original size sensor section is replaced.

•

When a U2 trouble occurs.

•

When the PCU main PWB is replaced.

•

When the EEPROM of the PCU main PWB is replaced.

1) Enter the SIM 41-1 mode.

Gradually tilt the original detection arm unit. Loosen the original
cover switch actuator adjustment screw so that the highlight dis-
play of OCSW is turned to the normal display when the height of
the arm unit top from the table glass is 32 

±

 0.5mm.

Slide the actuator to adjust. (If the ON timing of the original cover
switch is shifted, the original detection function may malfunction.)

1) Enter the SIM 41-2 mode.

2) Make the sensor adjustment without an original.

With the original cover open and without an original on the original
table, press the [EXECUTE] key.

3) Place A3 (11 

×

 17) document on the document table and press

the [EXECUTE] key.

Install the adjustment plate so that the projection of the plate comes
to the center of the scribe line.

This adjustment must be performed in the following cases:

•

When the operation panel is replaced.

•

When a U2 trouble occurs.

•

When the PCU main PWB is replaced.

•

When the EEPROM of the PCU main PWB is replaced.

1) Enter the SIM 65-1 mode.

2) Touch the four cross marks on the display.

When the crosses are touched correctly, they turn gray. When all
the four crosses are touched, the touch panel adjustment is com-
pleted and the display shows the simulation sub code entering
screen.

If there is any abnormality, the first display is shown again.

∗

When touching the crosses, never use a needle or a pin with a
sharp point.

32 ± 0.5mm

Original detection arm unit

Table glass

Original cover switch actuator

Actuator adjustment screw

Weight detection of ON 
becomes heavier.

Adjustment plate

Weight detection of ON
becomes lighter

7 –  44

This adjustment must be performed in the following cases:

•

When the transfer belt section is disassembled. 

1) Make a copy of gray half tone on the whole surface, and check for

a color balance difference between the front and the rear sides.
Check that there is no difference in the color balance of the front
side and the rear side.

2) If there is a color balance difference between the front and the

rear sides, change the height of the level adjustment angle to ad-
just.

It is fixed at the center normally.

This adjustment must be performed in the following cases:

•

When the fusing section is disassembled. 

•

When a fusing trouble occurs.

•

When wrinkles are generated on paper in the fusing section.

1) Select A4 (8.5 

×

 11) paper.

2) With the document cover open, press the start key of mono-

chrome copy.

3) A copy of black background is made.

4) Pull out the transfer section.

5) Insert paper into the pre-transfer paper guide, and turn the fusing

roller knob.

6) With the paper squeezed in the pre-transfer paper guide, wait for

about 10sec.

7) Turn the fusing roller knob to remove the paper from the fusing

section.

8) Measure the dimension (L) of the center section of the glittering

line made by the fusing roller. Check that the dimension is in the
specified range.
Check that the pressure balance between the front and the rear
frame sides is proper.

Value L

Model

Japan

Except Japan

AR-C100

5.5 –  6.0 mm

5.5 –  6.0 mm

AR-C150

5.5 –  6.0 mm

5.5 –  6.0 mm

AR-C250

6.0 –  7.0 mm

6.5 –  7.5 mm

AR-C160/C270

6.5 –  7.5 mm

6.5 –  7.5 mm

If the above condition is not satisfied, perform the following proce-
dure.

9) Turn the pressure adjustment screw on the front and the rear

frame sides of the fusing unit to adjust the fusing pressure.

(AR-C100/C150)

Adjustment wrench (UKOG-0282FCZZ) (Required for the AR-
C100/C150)

LR

L (Center)

LF

LR = LF

7 –  45

(AR-C250/C160/C270)

Repeat procedures 2) –  9) until the condition of procedure 8) is satis-
fied.

This adjustment must be performed in the following cases:

•

When a part in the DC power unit is replaced. 

1) Put the multi-meter on the 3.4V line of the DC main PWB and

GND.

2) Turn VR704 on the DC main PWB to adjust so that the voltage is

3.4V.

1) Put the multi-meter on the 5.0V line of the DC main PWB and

GND.

2) Turn VR703 on the DC main PWB to adjust so that the voltage is

5.0V.

1) Put the multi-meter on the 24V line of the DC main PWB and

GND.

2) Turn VR702 on the DC main PWB to adjust so that the voltage is

24.0V.

This adjustment must be performed in the following cases:

•

When the manual paper feed tray section is disassembled. 

•

When the manual paper feed tray is replaced. 

•

When a U2 trouble occurs. 

•

When the PCU main PWB is replaced. 

•

When the EEPROM of the PCU main PWB is replaced. 

1) Execute SIM 40-2.

2) Extend the manual paper feed guide fully.

3) Press [MAX POSITION] on the LCD of the operation panel to

highlight it.

4) Press [EXECUTE] on the LCD of the operation panel to highlight

it.

If normal, the highlight is shifted from [MAX POSITION] to [MIN
POSITION].

5) Narrow the manual paper feed tray guide fully.

6) Press [EXECUTE] on the LCD of the operation panel to highlight

it.

Check that [COMPLETE] is highlighted.

This adjustment must be performed in the following cases:

•

When the OHP sensor is replaced. 

•

When the OHP sensor is disassembled.

•

When a U2 trouble occurs. 

•

When the PCU main PWB is replaced. 

•

When the EEPROM of the PCU main PWB is replaced. 

1) Enter the SIM 40-5 mode. 

2) Set A4 (11 

×

 8.5) paper to the manual paper feed tray.

3) Press the EXECUTE key. 

Paper in the manual paper feed tray is fed and stopped at the OHP
sensor section. 

The sensor LED current level is automatically adjusted so that the
specified (target) output of the OHP sensor is supplied. 

After adjustment, paper is discharged and the result data is displayed.

When the adjustment is completed normally, ADJUSTMENT COM-
PLETE is displayed. When an error occurs, ADJUSTMENT ERROR
is displayed.

7 –  46

There are the following simulation functions to check the machine
operations, troubleshoot, find causes, make various settings,
improves adjustment work speeds and serviceability. 

1) Various adjustments

2) Specification and function setting

3) Trouble cancel

4) Operation check

5) Counters check, setting, clear

6) Machine operation conditions (operation history) data check, clear

7) Transmission of various data (adjustment, setting, operations,

counter, etc.)

The operating procedures and displays slightly differ from the form of
the machine operation panel.

The typical forms are as follows:

1) Code system: Values input and mode selection are made with the

10-key pad and various function keys. 

2) Switch system: Simulation mode selection is made by combination

of switch setting. 

3) Values and mode selection is made with various function keys. As

a special one, a jumper wire is used to connect the check points
on the PWB to select the desired mode. 

∗

Entering the simulation mode

1) Program (P) key 

→

 Interrupt key 

→

 Clear key 

→

 Interrupt key

(The machine enters the standby mode for the simulation main
code.)

2) Enter the main code with 10-key pad. 

→

 Press START key.

3) Enter the sub code of with 10-keypad. 

→

 Press START key.

4) Select the mode and the item with the 1-key pad and the function

key. 

5) The machine enters the selected mode.

To start the simulation, press the START key or the function key.

To cancel the current simulation mode and to change the main
code and the sub code, press the interrupt key. 

1) Press the all clear key. 

∗

The simulation mode is canceled and the machine returns to the
normal operation mode. 

8 – 1