Service code sc546 what do we need to do to fix this problem?

search error code . Brother MFC-8860DN Printer

Repair fuser and reset code

replace thermostat in heating section or u yuor tirmistor is directly touching the heat roller

SC546 is universal in Ricoh, Lanier and Savin. It is indicating that the machine does not see the fuser.

sc546 is a fuser temperature detect error. One or both of the thermistors most likely need to be cleaned or replaced, but you will have to go into service mode to reset the code once you do that. You should contact your local service technician or Gestetner dealer, as they can easily fix that problem.

Fuser warm up problem. Cause needs to be fixed and then code can be reset in service mode by a tech.

SC541 - SC-555

These codes mean you are having a problem with your fusing unit. The section of your copy machine that has to heat up before you can make copies. It runs at a pretty high temp because it has to melt the toner and press it into the paper as the copy moves through the machine. Depending on the code, your machine is either taking too long to warm up or it is overheating.

The most common reason is a build up of hard crusty toner on the temperature sensors. This tricks the machine into not seeing your fuser warm up fast enough. Most of the time you can reset this and continue to use the machine but expect the code to come back down the road. You can also get codes if the room the copy machine is in is too cold when you start up the machine. Either a cold winter day or even a summer day in a room too cold from air conditioning.

Some machines require you to enter a service code to reset a fuser/fixing unit error. Some only require you to enter the service mode, then turn the machine off / on using the main power switch. The main power switch is the one you have to rock to the off and rock back on, not the little button you press for power to come on.
To enter the service mode press the following keys in order:
Clear modes
1
0
7
then press and hold the stop key
You will see the display screen change. At this point turn the machine off / on to reset the code.
If your machine does not have an LCD display screen you should have seen the copy quantity
display change to a flashing zero.

Some machines will need to add a step to the above instructions.
Once the LCD screen changes, select the "SP Mode" selection from the touch screen.
Enter 5810
This is the Service Program (SP) that resets Service Codes (SC-###)
You will either have to select 1 to accept or select the touch screen button to activate this SP.
After you do, turn the main power off / on to reset the code.

If you try this and the code still comes back on, you have an electrical or mechanical problem that you will need to call a service company to repair. The reason for making this code so hard to reset is a safety issue. If there is a short in your fuser unit it can cause your machine to over heat and possibly cause a fire. There are thermistors (temperature sensors) and thermostats (temperature fuses) that will keep your fuser from overheating. If either of these devices are worn out, you will not be able to reset the code and will need to have your fuser serviced.

fuser warm up error. Code can only be reset in service mode after the problem is fixed.

need model.but in most it's a fuser prob.

Try to go into service mode to reset the code...
Clear yellow botton
1
0
7
then press and hold the red stop botton till the display changes and then turn the main Power switch Off then back ON... You do not have to do any thing in service mode, just get to that display.... Don't change anything unless you know what you are doing. sc546 has to do with the fixing unit. You may be able to reset it.