Network Printing

What was the first real use of local area networks

Printing

What is second only to backups

Printing

What’s Direct Printing Model (Old School)

Application printed directly to printer, but needed to know how to speak to the printer

What is required for each application and printer in Direct Printing Model

Drivers

Why use Direct Printing Model

Maximized accuracy and control (ex: AutoCAD)

What feature is used if PC is not connected to a printer

print to file

What are the connection methods in Direct Printing Model

Parallel, USB, and WiFi

What’s modern printing model

Uses a print server to manage communications between clients and printers

Where can the printer run on Modern Printing Model

Itself or on a separate, network-accessible server

What is SPOOL (Simultaneous Peripheral Operations On-Line)

Buffering service. Printer is slow so write formatted docs to hard drive and pass the control to printer

What is used to standardize print jobs

Spooling and converter services

What does Windows NT do

When connecting to a network printer (via print server), the correct driver is provided to client workstation without user intervention

T or F: Each queue have different defaults

T

Why is it useful for multiple physical printers for a single queue

More print jobs than a single printer can handle (load balancing)

All printers in the pool must use the same __

driver and exact same printer model

Which permission should everyone have if they want to print to a network printer

print permission

T or F: Each user should have right to delete their own print jobs

T

What does the manage documents allow

User to kill and re-order other users’ print jobs

What does Manage Printer permission alllow

User to change printer related settings and configs

Traditionally, what are 2 different types of printer connections

Serial (UNIX & Mainframe) or parallel (PC

What’s the most common for consumer printers

USB

What is gaining popularity

Wireless

What do workgroup printers almost exclusively rely on

Network to deliver print jobs

What does workgroup printer require the use of

Print server

What does the printer server do

Controls the flow of data between the network and print engine itself through the use of a spooler service

What is used for delivery across a network

LPR (Line Printer Remote)

What does LPR (Line Printer Remote) require the use of

LDP (Line Printer Daemon) on the server to receive print jobs sent from clients

What are some of the limitations of LPR

Limited source ports, times out after 4 min, requires job sizing

What is required by client to use LPR (Line Printer Remote)

Specify and the queue

What is included in host

DNSname or IP address of printer

What does queue identifies

How job is formatted

What’s RAW

Assumes a PDL-formatted job and adds no processing

What’s TEXT

Can be used for ASCII text and print server will add a CR to end of each line

What’s the default network printing protocol

RAW

T or F: RAW requires a queue setting

F

What does RAW address

LPRs shortcoming

What’s Common Unix Printing System (CUPS)

De facto printing protocol on UNIX systems to enable print server functionality

What does CUPS include

Spooler, Scheduler, Converter, Backend

What’s Page Description Languages (PDL)

Programming language used to describe print job to printer

What are 2 basic PDL’s

PCL and PostScript

What is PCL (Printer Command Language)

De facto standard for most inkjet printing

Why is PCL criticized

Less tolerant of errors than its competitor (PostScript)

When was Postscript devloped

Developed in 1982 for first laser printer

Postscript treat everything including text as

Raster Images

What is Postscript considered as

Own programming language with many features