Question about Epson ACULASER CX11NF All-In-One Printer

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Error "Service req E521"

Hello, I'd like to know if anyone has seen this particular error or knows the meaning of it on the CX11NF. I am unable to clear the error. I beleive it may be an engine type error based on the noise at startup.

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3 Answers

Re: Error "Service req E521"

Hello, In my particular case the problem turned out to be the motor (described as MOT ASSY MICRO in the manual). Have not the error since replacing. Thanks to all.

Posted on Jun 06, 2007

Re: Error "Service req E521"

Same issue here ! Had the printer 15 months. Printed out a 60 pages color doc with a lot of blue in it and dust went all over the inside Have tried cleaning up but it now works a few times then stops. Tech support is worthless! It keeps also asking for a new black TOner - I tried it but stills happens

Posted on Jun 05, 2007

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Re: Error "Service req E521"

Service Required E521 error: BTR 2 Error The input of 2nd BTR Retract Sensor does not change when 2nd BTR is initialized. There area couple of things that cause this problem. I would suggest you obtain a service manual from If you don't see your manual listed, drop them a line to see if they can email it to you. Hope this helps

Posted on Apr 24, 2007

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Dear sir; The L-6 error code it means "laser drive, motor", It can be reset, the procedure as follow;
1, press "clear", "exposure mode", "clear", "exposure" those keys.then machine go dead.
2, enter 14, then press print.follow the direction willtake car the problem.
If you need more help just let me know I'm always around, or generously give me good rating. thank you,

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