Read Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man14) Service Manual online
MX-4101N SIMULATION 6 – 13
4-5
Purpose
Operation test/check
Function (Purpose) Used to check the operations of the paper
feed desk paper transport clutch (DTRC)
and the LCC paper transport clutch (LTRC).
and the LCC paper transport clutch (LTRC).
Section
Paper feed desk/Large capacity tray (LCC)
Operation/Procedure
[Check the ON operation]
Press the button of the code name for checking the ON operation.
Checking is started. When the operation is normal, the button on
the display is highlighted. When it is abnormal, the button is not
highlighted.
[Check the OFF operation]
Press the highlighted button which is ON.
[Check the ON operation]
Press the button of the code name for checking the ON operation.
Checking is started. When the operation is normal, the button on
the display is highlighted. When it is abnormal, the button is not
highlighted.
[Check the OFF operation]
Press the highlighted button which is ON.
When the operation is normal, the highlighted button on the display
returns to the normal display. When it is abnormal, the highlighted
display is maintained.
returns to the normal display. When it is abnormal, the highlighted
display is maintained.
5
5-1
Purpose
Operation test/check
Function (Purpose) Used to check the operation of the display,
LCD in the operation panel, and control cir-
cuit.
cuit.
Section
Operation panel
Operation/Procedure
The LCD is changed as shown below.
The contrast changes every 2sec from the current level to MAX
The LCD is changed as shown below.
The contrast changes every 2sec from the current level to MAX
→
MIN
→ the current level. During this period, each LED is lighted.
The LCD display contrast change and the LED lighting status are
checked.
checked.
5-2
Purpose
Operation test/check
Function (Purpose) Used to check the operation of the heater
lamp and the control circuit.
Section
Fusing
Operation/Procedure
1)
1)
Select the item to be operation checked with the touch panel
key.
key.
2)
Press [EXECUTE] key.
The selected heater lamp operates ON/OFF.
When [EXECUTE] key is pressed, the operation is terminated.
The selected heater lamp operates ON/OFF.
When [EXECUTE] key is pressed, the operation is terminated.
Heater lamp operation check method:
Remove the rear cabinet, open the PWB holder, and the heater
lamp lighting status can be checked from the clearance between
the frames.
Remove the rear cabinet, open the PWB holder, and the heater
lamp lighting status can be checked from the clearance between
the frames.
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HL_UM
Heater lamp upper main (For warm-up)
HL_LM
Heater lamp upper main
HL_E
Heater lamp external
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