HP laserjet m1212nf - Manual (Page 211)

12 Solve problems
● Solve general problems
● Restore the factory-set defaults (M1210 Series only)
● Interpret control-panel light patterns (M1130 Series only)
● Interpret control-panel messages (M1210 Series only)
● Clear jams
● Solve paper-handling problems
● Solve image-quality problems
● Solve performance problems
● Solve connectivity problems
● Solve software problems
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