20 Most Recent Ricoh Aficio SP C820DN Laser Printer Questions & Answers

Hi, I'd be glad to help you.

SC 553: Pressure roller fusing lamp over heat
The detected pressure roller temperature stays at 200°C or more for five seconds.

It could be:
• Defective PSU (power supply unit)
• Defective BCU (The BCU generates the FGATE signal based on the registration sensor ON timing).

Last time I had this error (over a year ago) on this model, it was the PSU.

Best of Luck

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it looks like the Cyan Unit is not set correctly, so you need to open the front door, in the area behind the front door up you will see the toner bottles under the bottles it has a cream-white plate, you will see in the middle of the plate one handle - leveler which is blocked with a plastic piece, which have a ***** in the middle remove the ***** than remove the plastic piece, after that pull the handle - leveler up to be set from horizontal position into 45 degrees angle upwards. After that in the upper right corner of the plate you will see another handle- leveler. This one you need to set from horizontal position into vertical position upwards. After you move the both leveler, you will need to pull the hole cream-white plate toward you. Inside you will see 4 boxes (PCU's) with green levelers. Put inside firmly the cyan box (PCU) under the Cyan box, below the box writes on a sticker Cyan.. After you do this close back the creame-white plate, put the both levelers into horizontal position and close the the front door. If the problem persist than is not just a small fix...That is for now, if the problem continues please ask more guestions. Good Luck. :)

Memory chip at TD sensor: Communication error

Retry of memory chip communication fails three times after the

machine has detected the memory chip communication error.

?? Damaged memory chip data

?? Disconnected inter face

?? No memory chip on the development unit

?? Noise Replace the PCU.

check thermistor and fuse on ac/dc board

Replace the PCU.

Check drum unit and fuser unit for wear.

Replace the fuser. Then thermopile if it continues.

is a hard drive problem replace hard drive.

Is it a genuine Ricoh Toner or a equivalent refill, if it is the latter then my machine would say empty when actually full. Just keep on using the machine, and have another toner on stand by. If its a genuine Ricoh toner suggest the machine needs a clean around where the built in (toner) chip is located.

This error is a fuser error . The fuser is not set properly,remove the fuser and set in properly if the problem persists, fix in a brand new fuser., If the error appears again then call an expert to check on it for you. Good luck

SC565 *Heat lamp consecutive on error - Broken main fuser connection - Check HR thermistors - Heat roller lamp defective - Power Supply defective

problem thermofuse heater stove