Samsung ML-4551NR - Options; Others

Specifications
Service Manual
2-5
Samsung Electronics
2.2.7. Options
ITEM ML-4550 SERIES
ML-4550 ML-4551N ML-4551ND
Memory - 128MB/512MB (256MB+256MB)
Second Cassette - 500 sheet Cassette Tray
Third Cassette - 500 sheet Cassette Tray
Stacker - N/A
Stapler N/A
PostScript - Default
Wired Network - Ethernet 10/100 Base Default Default
TX (Internal)
Hard Disk - 40GB
Duplex Unit - Optional Default
2.2.8. Others
ITEM ML-4550 SERIES
ML-4550 ML-4551N ML-4551ND
Performance Jam Rate Base Line Paper : 1/12K
Requirement
Standard Paper : 1/10K
Stress Paper : 1/1500