Sharp DIGITAL LASER COPIER/PRINTER AR-153E - Manual (Page 39)

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DEVELOPER REQUIRED
When the developer replacement required ( ) indicator lights up, the developer
should be replaced. DEVELOPER REPLACEMENT SHOULD ONLY BE DONE BY
AN AUTORIZED SHARP SERVICE TECHNICIAN. Contact your service center as
soon as possible.
MAINTENANCE REQUIRED
When maintenance ( ) indicator lights up, service by an authorized SHARP
service technician is required. Contact your service center as soon as possible.