Detailed Section Descriptions; Overview - Ricoh B082 Service Manual

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4. DETAILED SECTION DESCRIPTIONS

4.1 OVERVIEW

The basic fax unit consists of two PCBs: an FCU and an NCU.

The FCU controls all the fax communications and fax features, in cooperation with

the controller board. The NCU switches the analog line between the fax unit and

the external telephone.

Fax Options:

1. Extra G3 Interface option: This provides one more analog line interface. This

allows full dual access. Up to two extra G3 interface options can be installed.

The option G3 unit consists of two PCBs: G3 board and NCU.

2. Fax Function Upgrade Unit: JBIG compression becomes available. In addition,

this expands the system's SRAM capacity to hold programmed telephone

numbers, memory files, etc.

3. Memory Expansion: This expands the SAF memory and the page memory

(used for image rotation); without this expansion, the page memory is not big

enough for image rotation at 400 dpi, so transmission at 400 dpi is not possible.

Fax Function

B360V501.WMF

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