Browse Prior Art Database

REMOTE INTERACTIVE COMMUNICATION LOOP-BACK TOOL

IP.com Disclosure Number: IPCOM000027016D
Original Publication Date: 1994-Dec-31
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 68K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is a tool for use in testing the remote interactive communications (RIC) capability of an electrophotographic printing or copying machine. As is well-known, RIC capability allows the machine to communicate with a host computer for purposes of indicating errors, diagnostics, etc. However, the RIC hardware present in the machines may not have the capability to test or diagnose problems. This disclosure describes a tool that will enable technical service personnel to test and debug each component of the RIC hardware, and evaluate their functionality, without simply replacing components when an error has been indicated, as has been done in the past.

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XEROX DISCLOSURE JOURNAL

REMOTE INTERACTIVE Proposed Classification COMMUNICATION LOOP-BACK U.S. C1.355/204 TOOL Int. C1. G03g 21/00 Rui Amorim

Disclosed is a tool for use in testing the remote interactive communications (RIC) capability of an electrophotographic printing or copying machine. As is well-known, RIC capability allows the machine to communicate with a host computer for purposes of indicating errors, diagnostics, etc. However, the RIC hardware present in the machines may not have the capability to test or diagnose problems. This disclosure describes a tool that will enable technical service personnel to test and debug each component of the RIC hardware, and evaluate their functionality, without simply replacing components when an error has been indicated, as has been done in the past.

For example, in the Xerox 5090 Processor, the RIC hardware consists of a RIC

/ AI-IOP printed wiring board assembly (PWBA), an interface harness, a modem harness, and a modem. The RIC PWBA carries a microprocessor (an Intel 8752) on-board with the necessary firmware to test for the R;IC Loop-back tool. The PWBA also has 3 USART chips for communications with the modem. The RIC Loop-back tool is intended to work from the USART available for RIC communications. Generally, the tool sets up the correct conditions on the USART chip, so that when the communications are initiated the USART can transmit information to the loop-back tool and then back to the USART. If this test fa...