Question about Office Equipment & Supplies
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Posted on Jan 02, 2017
SOURCE: ricoh 6513, service code 551
SC551 is thermistor pressure roller error. Check for paper jams in the fuser. It could need a new thermistor.
Make sure the fuser is secured and properly seated in the copier.
Posted on Jun 12, 2008
SOURCE: ricoh sc 551
This is a fuser temp. problem -- must reset and/ or replace thermistors.
Press clear modes button then 1-0-7 then hold down the clear stop button.
When display changes touch copy sp modes.
Turn may power off and wait about 30 sec.
Turn power on.
If the machine comes to ready you are ok for now.
If code returns you must replace thermistors.
If you need to replace thermistors, contact me and I will get you part numbers and instructions.
Posted on Jan 16, 2009
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551 A Pressure roller thermistor open
- Timing -Every 1 second after the fusing unit is installed
- Condition -The pressure roller thermistor output is almost close to 5V,which corresponds to 0
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