[Error Code] Sharp AR-M550 error code E7-02

[copyplus]

My machine is giving me error code E7-02. I need help to fix this problem. thanks

[divad2k1]

Re: Sharp AR-M550 error code E7-02

Replace the lsu.

[copyplus]

Re: Sharp AR-M550 error code E7-02

This is not a constant problem. The machine works fine but sometime it gives that code and stops working and next day it will turn on fine. Is there any code that needs such as 61-1 or 61-2 needs to be run to get rid of this problem. thanks

[harleyrider]

Re: Sharp AR-M550 error code E7-02

lsu is where I would start.

[lky1978]

try to open the lsu unit, clean all mirrors, glasses. Maybe mirrors/glasses dusty and block the laser beam when the beam point to the laser synchronize detector.

[copyplus]

Re: Sharp AR-M550 error code E7-02

I tried to clean the mirrors and checked for any loose connection. Still having the same problem. Is someone know if anyone has a used lsu that I can buy. thanks

[copyplus]

Re: Sharp AR-M550 error code E7-02

After opening the unit and cleaning the mirrors and checking the wires, installed back and the code E7-02 is constant now. Prior to opening the unit it was working on and off. Maybe there is something that needs to be checked. thanks

[faxman28]

Re: Sharp AR-M550 error code E7-02

Time to replace the LSU , either laser diode or beam detect sensor failed or was nocked out of place. adjusting/replacing beam detect sensor needs precise alignment which cannot be done in field same for laser diode.

[copyplus]

Re: Sharp AR-M550 error code E7-02

What is the difference between AR-M550N and AR-550U? Can I use parts from AR-550U to replace in AR-M550N including LSU? thanks

[harleyrider]

Re: Sharp AR-M550 error code E7-02

as long as they are both 550's they have the same lsu. I asume they are both arm.

[Akitu]

Re: Sharp AR-M550 error code E7-02

What is the difference between AR-M550N and AR-550U? Can I use parts from AR-550U to replace in AR-M550N including LSU? thanks

The difference between an N version and a U version is the NIC and HDD. All other parts are the same, you can take an LSU from 550U to replace LSU in 550N.

[copyplus]

Re: Sharp AR-M550 error code E7-02

I have found Sharp AR550U. The machine has an error code F2-31. This code is related to the PCU. Can I use LSU from this machine to replace in my Sharp AR-550N. Can that error code create a problem and effect the LSU? please advise. thanks

[Akitu]

Re: Sharp AR-M550 error code E7-02

The F2 code will not affect the laser. Those are usually triggered when the waste toner fills up before the toner bottle is emptied and the drum augur can not turn properly, either stalling or seizing altogether. Your laser should remain unaffected.

[Virus2007]

Re: Sharp AR-M550 error code E7-02

Hi;

regarding this error can be resolved tuning the laser in the blue screws very carefully with the help of code 61-01 and 02 ng ... ok, but the best and replace full lsu.

[copyplus]

Re: Sharp AR-M550 error code E7-02

Hi;

regarding this error can be resolved tuning the laser in the blue screws very carefully with the help of code 61-01 and 02 ng ... ok, but the best and replace full lsu.

Would you kindly elaborate this process in little detail? I will appreciate your assistance.