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This alert can result from the smallest portion of a paper misfeed. Open all doors and look into each roller corner for a piece of paper that may have been jarred into a corner.
I'm assuming it's SC545. It pertains to temp not being correct in the fuser. Possibly a thermistor, thermal fuse or lamps are bad. It's one of the codes that need to be troubleshot and replace whatever is needed before clearing the code. This is to prevent further damage to the machine. Thanks Colin
These are the possible causes of your "scanner error" (SC121). You'll need a tech to solve this:
* SIB or scanner motor drive board defective * Scanner motor defective * Harness between SIB and scanner drive motor disconnected * Harness between SIB and scanner drive motor power source disconnected * Scanner HP sensor defective * Harness between SIB and scanner HP sensor disconnected * Scanner wire, timing belt, pulley, or carriage defective
Hello sir; the error code you display is toner senser problem, now the first thing you have to do is make a full color copy find out which color missing then pull out developer unit from missing color the senser right underneath, replace it.
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