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What will fix a code SC546?

We replaced a bad fuser unit with another fuser. The code cleared and we copied 100 sheets then it re appeared. How do we fix this?

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The replacement fuser may have failed.

Posted on Jul 10, 2014


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Error code sc545

The Error Code SC542 or Sc546 could be a caused by a few reasons. There is a temperature problem with the fuser unit, the roller thermistor is bad, or the BCU Board is bad.
1 metode to reset Ricoh Error code sc542:
To clear the code:
Hit the yellow "Clear Modes" key
Press 107 on the number pad
Press and hold the "Clear Stop" for 10 seconds until you get a new screen ...
Press the "Copy SP" Button on the display
Open the front door
Turn front left power switch off and on
Shut the door
The error code is now cleared.
reset Ricoh Error code sc542:
To Enter and Exit the SP Mode
1. Press yellow "Clear Modes" key .
2. On the operation panel keypad, press 107 number
3. Hold down red "Clear" key more than 10 seconds.
The Copy SP is displayed.
4. Press "Copy SP" and go to the code SP5810, press "Execute"
5. To exit the SP mode, just press Exit in the upper right corner of the SP mode
screen. Power switch off and on and the error code is now cleared.

Hope this his helps, thanks for using fixya.

Btw, I’m available to help over the phone in case u need at

Aug 28, 2014 | Office Equipment & Supplies

1 Answer

What is the code SC546 mean?

search error code . Brother MFC-8860DN Printer

Jul 10, 2014 | Brother MFC-8860DN Printer

1 Answer


change the fusing unit completely and put on the machine.
if the error appears again, enter the sp mode by
1,press the yellow key say three times and enter keys 107
2,press and hold the stop/clear key for say 5 seconds .the machine will take you into the sp mode.
3,put of the machine for about aminute and put it on again .
I believe when you follow this step well ,thie problem will be solved

Jun 11, 2014 | Ricoh Aficio 2045e 2035e Copier...

2 Answers

System error canon ir 2000

that is a fuser related error,probably the fixing film is torn or the fuser thermistors are bad

Feb 08, 2010 | Canon imageRUNNER 2000 Copier

2 Answers

We have an error code SC546 any idea what that means. It just showed up.

This is a fuser code; it can be reset on newer models by pressing...

clear modes(yellow key)
1, 0, 7
clear stop (hold down until screen changes)

select copier sp

turn machine off with red rocker switch(likely on left side of machine)

wait 10 seconds and turn back on

If the code comes back, there is likely something malfunctioning on the machine, and it will require service. If not, this should get you by for awhile.

Nov 18, 2009 | Ricoh Office Equipment & Supplies

2 Answers

I have 1045 model, more times error sc546 comming

SC546 is htermistor reading in the fuser is not getting a correct reading.. this could be due to toner build up on the face of the thermistor open up the front of the machine the fuser is at top right hand side. there is a screw under it to release the unit. open the side dooor and you can pull teh unit out. have a look at the surface of teh rollers if they look shiny black they are ok if there is any wear on them they may need changing. to clear the code enter the service mode by pressing the yellow clear button at top of number pad then enter 107 then hold down the stop button till teh screen changes to sp mode,, you need to look for section 5.mode then scroll to 810 sc reset .. execute this and turn off the machine wait 5 secs and turn back on.. this should clear your code . if this keeps coming up the thermistors may need to be changed they ar cheap and you could change them yourself.. if you need more details let me know. Good Luck A

Sep 29, 2009 | Ricoh Aficio 1035 Copier

2 Answers


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
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.

Jun 19, 2009 | Office Equipment & Supplies

2 Answers

I have a machine it has a code SC546 and dont letme do anything please help me. thank you

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

Jun 05, 2009 | Ricoh Aficio 1035 Copier

1 Answer


SC-546 is "Warm-up" error, suggests that the fuser is NOT reaching 160' within standard warmup time. 

Possible solution: Remove fuser cover, remove carbon buildup from thermistor.

I had to replace the fuser unit but it had 180,000 copies - service is 120,000

Aug 01, 2008 | Ricoh Aficio 1022 All-In-One Laser Printer

5 Answers

Service code SC546 on a Ricoh Aficio 1045

Try to go into service mode to reset the code...
Clear yellow botton
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.

Jun 03, 2008 | Computers & Internet

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