20 Most Recent Ricoh Aficio SP 9100DN Laser Printer Monochrome - 75 ppm Mono - USB - Fast Ethernet - Mac, PC - Page 9 Questions & Answers

use oem ink

main motor is not able to turn can be lots things start checking sub assemble to see if they turn

Try this: http://www.fixya.com/support/t403613-sc542

Try cleaning the laser unit. If unsure how, give your nearest Ricoh distributor a call to log a service call.

Check the connection to the printer. Check the ports on the driver to see if it's using the IP port or USB. Otherwise the IP's on the network changed.

Try cleaning the feed rollers of the df. Usually it gets dirty.

Usually when it's not loading toner the dev gears on the PCU is worn out. You should call your nearest Ricoh agent for a service call let the technician come and fit new dev gears

This Error belongs to Processing Section, Drum parks, Developer Unit Jam n Hard to move or Transfer belt unit

There is a problem with the Laser Unit. Need to call a tech.

First say what is the model

Error 542 has to do with heat roller warm up. Ensure your thermistor is fine like wise your themostart. Also check if there is dirt on the surface of the thermopile, the check the continuity of the heating roller fuser lamp. Replace defective parts above.

I don't know what is your printer model, but I am sure, that this mashine needs cleaning. The main problem should be that the ID sensors of image transfer belt are dirty. You need technical skills to do that.

You tube repair videos: SC 400 RICOH 2051

could be black drum unit sounds like drum blade failing

Clear modes(yellow) 1 0 7 hold clear/stop for 5 seconds, and reset the web counter. -Carl

could be the right side door is not latched properly

this is a problem with the bicu board . change the bicu board completely and the machine will work .