MX-5050N, MX-5050V, MX-5070N, MX-5070V, MX-6050N, MX-6050V, MX-6070N, MX-6070V (serv.man6). Service Manual (Revised November 2017). - Sharp Copying Equipment Service Manual (repair manual). Page 124

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MX-6070N  SIMULATION  6 – 17
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.
 
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.
Section
Operation panel
Operation/Procedure
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.
 
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) Select the item to be operation checked with the touch panel
key.
2) Press [EXECUTE] key.
The selected heater lamp operates ON/OFF.
When [EXECUTE] key is pressed, the operation is terminated.
Heater lamp operation check method: 
Remove the front cabinet upper and the paper exit tray, and the
lighting status of each heater lamp can be checked through the
clearance between the fusing pressure release drive gear and the
frame fusing section.
 
5-3
Purpose
Operation test/check
Function (Purpose)
Used to check the operation of the scanner
lamp and the control circuit.
Section
Scanner (reading)
Operation/Procedure
1) Select the item to be operation checked with the touch panel
key.
2) Press [EXECUTE] key.
The scanner lamp lights up for 10 sec.
When [EXECUTE] key is pressed, the operation is terminated.
 
5-4
Purpose
Operation test/check
Function (Purpose)
Used to check the operation of the dis-
charge lamp and the control circuit.
Section
Process
Operation/Procedure
1)
Select a target of the operation check with the touch panel key.
When [ALL] key is pressed, all the items are selected.
2)
Press [EXECUTE] key.
The selected discharge lamp is lighted for 30 sec.
When [EXECUTE] key is pressed, the operation is terminated.
 
6
 
6-1
Purpose
Operation test/check
Function (Purpose)
Used to check the operations of the load in
the paper transport system (clutches and
solenoids) and the control circuits.
Section
Paper transport/Paper exit section
Operation/Procedure
1)
Select the item to be operation checked with the touch panel
key.
2)
Press [EXECUTE] key.
The selected load performs the operation.
When [EXECUTE] key is pressed, the operation is terminated.
Load operation check method: 
The load operation is checked by the operation sound. However,
there are some loads which cannot be checked with the operation
sound.
Button
Content
DTRC
Desk transport clutch
LTRC
A4 LCC transport clutch
HL_UM
Main heater lamp (Upper main)
HL_US
Sub heater lamp (Upper sub)
HL_LM
Heater lamp (Lower main)
DL_K
Discharge lamp K
DL_C
Discharge lamp C
DL_M
Discharge lamp M
DL_Y
Discharge lamp Y
Display
Content
C1LUM
Paper tray lift motor (Paper feed tray 1)
C1PUC
Paper feed clutch (Paper feed tray 1)
C2LUM
Paper tray lift motor (Paper feed tray 2)
C2PUC
Paper feed clutch (Paper feed tray 2)
CPFC1
Tray vertical transport clutch 1
CPFC2
Tray vertical transport clutch 2
CPFM
Transport motor
FUM
Fusing motor
HPFC
Horizontal transport clutch
MPFS
Paper feed motor solenoid (Manual feed tray)
MPUC
Paper feed clutch (Manual feed tray)
OSM
Offset motor
PFM
Transport motor
POGS
Paper exit gate solenoid
POM
Paper exit motor
RRM
Registration motor
SBM_F
Reverse motor (normal rotation)
SBM_R
Reverse motor (reverse rotation)
TRC_DSK
Desk clutch
TRC_FIN
Finisher clutch
TRC_LCC
LCC clutch
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Display

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