Main Controller - Samsung ML-451 Series Service Manual

2. Product Specifications and Description

2.2.10.1. Main Controller

The Main Controller, which is used to process the printable video data and system, has adopted the Chorus4 one chip solution.
It has adopted the DDR2 on board 2Component as the system memory. ML-451x series memory size is 128MB, and
ML-501x series momory size is 256MB. Additionally, 512MB option memory can be installed for all models.
It supports the optional hard disk drive through the Sata Block. The LPEC1 for controlling the sensor and drive is connected
to the LOCAL in the main controller.
It supports the USB device 1ch, Host 1ch, Giga Network 1ch. It has the optional Micom(Attiny25) for protecting the
IFS2 fuser unit.
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