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Russell H.
Russell H., Service Tech.
Category: Office Equipment
Satisfied Customers: 468
Experience:  10 yrs fixing office equipment. Decades of typewriter fixes.
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I have a bizhub cm4521 and the ozone filter had to be

Customer Question

I have a bizhub cm4521 and the ozone filter had to be replaced and now the consumables will not reset. It keeps saying to replace the ozone filter.
JA: What's the make/model number of your printer? How old is it?
Customer: bizhub cm4521 and at less 8 years old
JA: What kind of computer are you printing from (Mac or PC)? What Operating System (OS) are you running?
Customer: pc
JA: How long has this been an issue? What happened right before this popped up?
Customer: one week. nothing happen. the display said to replace the ozone filter and I did.
JA: Anything else you want the printer expert to know before I connect you?
Customer: no
Submitted: 10 months ago.
Category: Office Equipment
Expert:  Russell H. replied 10 months ago.

Hi, thank you for contacting My name is***** will do my best to provide the right answer to your question.

Have you tried any of the actual reset procedures?

Was the error message like this:

026A Ozone filter replacement required

If so, then you need to do the procedure where the error message status in memory is reset. I may be able to provide you with this control sequence, if you will confirm as to exactly what message is still showing on the Ricoh machine.

(-By the way: It is an OCE machine, not a Ricoh machine, isn't it?)

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