MX-4100N, MX-4101N, MX-5000N, MX-5001N (serv.man131). NOTIFICATION OF REVISED DESCRIPTIONS IN THE INSTALLATION MANUAL FOR MX-FR11U (DSK) - Sharp Copying Equipment Technical Bulletin (repair manual). Page 4

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2) Turn on the main power switch 
 
 
 
 
3) Turn on the power switch located on the operation 
panel. 
 
 
 
 
 
 
F. Installation of the DSK firmware 
 
(1) MFP booting operations after replacement 
 
1) Turn ON the power, and the main program error is 
displayed 
 
Main Program Error!! 
 
 
2) After 10 seconds from displaying the above error, the 
following display is made. 
 
Emergency Prog Init 
Please wait 
 
3) The main program version is displayed, and the 
machine enters the boot mode. 
 
Version Check 
conf: xxxxxxxx 
 
 
(2) Boot Mode operation 
 
Install the DSK firmware as follows. 
 
a.  Operations and functions of the keys in the boot mode 
 
 
 
Normal key name 
Boot mode key 
name 
Function 
Start key 
(monochrome) 
[OK] key 
Executes the selected 
function or item 
Home key 
[MENU] key 
Selects a menu 
Job Status key 
[UP] key 
Selects an item 
System setting key 
[DOWN] key 
Selects an item 
 
b.  Function selection in the Boot Mode 
 
The functions of the boot mode can be selected by 
pressing MENU key as shown in the figure below. 
 
 
 
 
Version Check 
conf: xxxxxxxx 
 
 
 
 
 
 
 
 
 
MENU key   
 
 
MENU key  
 
 
 
 
 
 
Firm Update 
  From USB Memory 
 
 
(3) DSK Firmware installing procedures in the boot mode 
 
1) Boot the machine in the boot mode. With 
“Version 
Check
” displayed. Press [MENU] key. and the machine 
enters the firmware update mode. (
“Firm Update” is 
displayed) 
 
 
Firm Update 
  From USB Memory 
 
2) Insert the USB memory with the installation or update 
firmware file (SFU file) in it into the USB port of the 
machine, and press [OK] key 
 
Firm Update 
> xxxxxxxx.sfu 
 
 
3) Select the target firmware file SFU file)by using 
[UP] key and [DOWN] key 
・When [OK] key is pressed with the directory name 
displayed, the control can enter the lower level 
directory (However, one level lower only) 
 
4) Press [OK] key. 
The selected firmware file SFU file)  is read. (It takes 
about one minutes) 
 
Firm Update 
 Reading Data 
 
 
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