Sharp AR-164 - Manual (Page 47)

45
ST
A
TUS
INDICA
T
ORS
Developer required/
Maintenance required
MAINTENANCE REQUIRED
When the indicator lights up, service by an authorized SHARP service
technician is required. Contact your service center as soon as possible.
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.
DEVELOPER REQUIRED