WHY THIS PRINTER IS SHOWING SERVICE CALL SC491

This is most likely a fuser issue. If you have a spare laying around, I would suggest replacing your fuser. If you have a contract with Ricoh, I would suggest placing a service call for them to come out and look at the machine.

panggil 911

https://printcopy.info/?l=en&mod=erc&brand=Ricoh&model=Aficio%20SP210SU&code=SC491

Possible fixes from previous FIXYA question.

Use Comment menu to add information.

For example, what model Ricoh printer is it?

Have you replaced toner recently? If so, was it Ricoh original or not?

http://www.fixya.com/support/t26593905-printer_ricoh_sp_210su_service_call

Printer Ricoh sp 210SU service call error SC491 using compatable cartridge...

SC491 on a Ricoh SP 210SU is a code for bias leak.

The machine detects that a bias leak has occured from the drum charge, development charge or transfer charge.
PWM signals are sampled at 20 msec. intervals. This SC is issued if 10 PWM samplings within 200 msec. are abnormal.

• HVPS (high voltage power supply) harness loose, broken, defective
• HVPS board defective
• AIO terminal defective (the terminal for the toner cartridge)
• Cycle the machine off/on
• Check all the harness connections of the HVPS
• Check spring-loaded AIO terminal installation behind the HVPS.
• Replace HVPS.

Usually this error is related to the cartridge. Some manufacturers of compatible cartridges will replace the cartridge with a new one.
At least they should give a discount based on how many pages that was printed before it failed.

I have not seen this problem with a new genuine Ricoh cartridge.
It is important that the cartridge is not refilled more then 3 times. There is no counter on this, and companies that refill cartridges they collect (with unknown number of cartridges) may have problems quite often.

SC491 Richo 2050

MPC 2500 SC442 what is the problem?

sc491 is a high voltage output error. Combined with your jamming issue, it sounds like a possible electrical problem somewhere. A good first step is to turn the machine off and unplug it, then take off the covers and reset any connections or cables you can get to.

If the problem persists, you should have a service technician take a look at it because it might need a board replaced.

SC491 error is a general error meaning service needed

sc491 is a high voltage output error. Combined with your jamming issue, it sounds like a possible electrical problem somewhere. A good first step is to turn the machine off and unplug it, then take off the covers and reset any connections or cables you can get to.

If the problem persists, you should have a service technician take a look at it because it might need a board replaced.

Sc 491 straight from manual

High voltage power: Drum/ development bias output error
An error signal is detected for 0.2 seconds when charging the drum or
development.

High voltage leak

Broken harness

Defective drum unit or development unit

Defective high voltage supply unit

1. Check or replace the harness.
2. Replace the drum unit or paper transfer unit.
3. Replace the high voltage supply unit.