Ricoh manual Functional block diagram of A741 Repro System, Print Server PC

3 Functional block diagram of A741 Repro System

C

E

Local Client

rfxServer

A

Remote Client(s)

Local	Remote
Spool	Spool
	D

Littlebear.sys driver

B

Littlebear card

Print Server PC

Explanation of various signals

A.Communication between rfxServer, Littlebear.sys driver and Littlebear card.

Due to the nature of the Windows NT system it is not allowed that programs communicate directly with hardware. Normally this communication is done via a driver. The rfxServer program can now communicate in a hardware independent way. To control a different printer only the card and driver software need to be replaced.

B.Communication between driver and card.

C.Network communication

The Server and Client programs exchange (status)information via 'named pipes' through the network. If a Client detects that rfxServer is present on the same system, it will be given the status of 'Local Client', if the server is not present or not started, the Client will assume the role of 'remote client'. This is the main reason why there must be an active network, even on a stand-alone system.

Print Server Manual 13 A741