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Attachment of a High-Speed Printer to a Dedicated Printer Work Station Controller

IP.com Disclosure Number: IPCOM000101780D
Original Publication Date: 1990-Sep-01
Included in the Prior Art Database: 2005-Mar-16
Document File: 2 page(s) / 64K

Publishing Venue

IBM

Related People

Connoy, LP: AUTHOR [+2]

Abstract

This article discusses a method of work station controller (WSC) attachment of printers in one of two modes: the current mode which considers performance of non-printer work stations and a new mode which optimizes for printer performance when the WSC is dedicated only to printers. This results in support for faster printers and increased printer capacity on a dedicated printer WSC.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 56% of the total text.

Attachment of a High-Speed Printer to a Dedicated Printer Work Station Controller

       This article discusses a method of work station
controller (WSC) attachment of printers in one of two modes:  the
current mode which considers performance of non-printer work stations
and a new mode which optimizes for printer performance when the WSC
is dedicated only to printers. This results in support for faster
printers and increased printer capacity on a dedicated printer WSC.

      Work Station Controllers (WSCs) support multiple work stations
attached using some type of work station communication protocol.
Work stations can include displays, printers, or other devices.  WSC
design considers performance of all attached work stations.  As a
result, the maximum print speed of a single printer and total
throughput for all printers may be limited.  The workload a printer
places on the WSC is determined by the printer speed, the percent of
time the printer is printing, and the rate at which the WSC polls the
printer during printing (assuming a work station communication
protocol where the WSC polls printers for changes in printer status).
An example of WSC and printer handshaking can be described as
follows:
-  The WSC receives printer data from the host processor and performs
any necessary processing on the data.
-  The WSC sends a block of the data to the printer and waits for
acknowledgement from the printer that the data was received
successfully.
-  The WSC enter...