Developer Required; Maintenance Required - Sharp AR-164 Operation Manual

DEVELOPER REQUIRED

When the indicator lights up, the developer should be replaced.
DEVELOPER REPLACEMENT SHOULD ONLY BE DONE BY AN
AUTHORIZED SHARP SERVICE TECHNICIAN. Contact your service
center as soon as possible.

MAINTENANCE REQUIRED

When the indicator lights up, service by an authorized SHARP service
technician is required. Contact your service center as soon as possible.
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