Samsung ML-451 Series Service Manual page 141

Error Code Error Message
H2-4500 Paper Jam in front of mailbox bin 4. Remove paper.
H2-4501 Paper Jam at mailbox bin 4. Remove paper.
H2-4502 Paper Jam at mailbox bin 4. Remove paper.
H2-4700 Mailbox Failure #H2-4700. Check mailbox.
H2-4701 Mailbox Failure #H2-4701. Check mailbox.
H2-4710 Mailbox Failure #H2-4710. Check mailbox.
H2-4711 Mailbox Failure #H2-4711. Check mailbox.
H2-4A20 Mailbox door is open. Close it.
H2-4A32 Too much paper in mailbox bin 1. Remove printed paper
H2-4A35 Too much paper in mailbox bin 2. Remove printed paper
H2-4A38 Too much paper in mailbox bin 3. Remove printed paper
H2-4A3C Too much paper in mailbox bin 4. Remove printed paper
H2-4A50 Mailbox Failure #H2-4A50. Check mailbox connection
M1-1110 Paper jam in tray 1.
M1-3122 Tray 1 cassette is pulled out. Insert it properly.
M1-4111 Input System Failure #M1-4111 : Pull tray 1 out and insert it.
M1-5112 Paper is empty in tray 1. Load paper.
M1-5612 Paper is empty in MP tray. Load paper.
M2-1110 Paper jam inside of machine.
M2-2210 Paper jam at the inside of duplex path.
M2-2310 Paper jam at the bottom of duplex path.
M3-1110 Paper jam in exit area.
M3-2130 Too much paper in output bin tray. Remove printed paper.
S2-4210 Front door is open. Close it.
S2-4610 Rear door is open. Close the door.
S6-3123 This IP address conflicts with that of other system. Check it.
S6-3128 802.1x authentication failed. Please Contact the System Administrator.
U1-2115 Fuser Unit Failure #U1-2115 : Turn off then on.
U1-2116 Fuser Unit Failure #U1-2116 : Turn off then on.
U1-2117 Fuser Unit Failure #U1-2117 : Turn off then on.
U1-2320 Fuser Unit Failure #U1-2320 : Turn off then on.
U1-2330 Fuser Unit Failure #U1-2330 : Turn off then on.
U1-2340 Fuser Unit Failure #U1-2340 : Turn off then on.
U2-1111 LSU Failure: #U2-1111. Turn off then on.
U2-1113 LSU Failure: #U2-1113. Turn off then on.
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4. Alignment and Troubleshooting
Troubleshooting Page
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