Brother IMPACT DOT MATRIX PIRNTER- User Manual
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Table of Contents:
- Page 2 – C. Based on to the Printing Speed; General Structure of a Printing Engine
- Page 4 – Printers
- Page 5 – Thermal Technology; ThinkJet
- Page 6 – Piezoelectric Technology; This technology has been developed by Epson and is based on the; Epson developed a technique named; MACH
- Page 7 – intensity of light to which it is exposed.
- Page 14 – Lexmark Optra Colour
- Page 16 – Escape
- Page 17 – Sequence
- Page 18 – Overview
- Page 19 – Types of PCL Commands
- Page 20 – PCL Command Structure; ESC; Zn
- Page 23 – EPP; Bibliography
1
Input/Output Systems and Peripheral Devices
6.
PRINTERS
This laboratory work presents the main types of printers, the general structure of a
printing equipment, and the operating principle of inkjet, electro-photographic, phase-change,
and dye-sublimation printers. The laboratory work also introduces the
PostScript
and PCL
languages used for controlling the printers.
6.1. Printer Types
There are several classification criteria for the printers. Part of these criteria is pre-
sented next.
A. Based on the Operating Principle
There are two important categories:
Impact printers;
Non-impact printers.
In the case of
impact printers
, printing is performed by means of an impregnated rib-
bon; therefore, there is a mechanical contact between the printing assembly, inked ribbon, and
paper. The advantage of these printers is that they allow to make several copies simultaneous-
ly, but their drawback is that they are relatively slow and are noisy.
A few types of impact printers are the following:
Selected-character printers, in which the character set is placed on a body. The body
can be a drum, chain, band, cylindrical or spherical head, daisy-wheel, or thimble.
Dot matrix printers, which can use needles or blade-hammers.
In the case of
non-impact printers
, there is no direct contact between the printing as-
sembly and paper. In some printers, the image to be printed is first formed on an intermediary
support, and then it is transferred onto the paper. The advantages of these printers are their
high speed, high quality of the printed text or image, and low level of noise. Their disa d-
vantage is that they cannot create several copies simultaneously.
Examples of non-impact printers are the following:
With electro-sensitive paper;
Thermal;
Electrostatic;
Electro-photographic;
Inkjet;
With microfilm.
B. Based on to the Printing Quality
There are three quality levels of the printed documents:
Low or draft quality;
Medium or near-letter quality;
High or letter-quality.
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Summary
2 Printers C. Based on to the Printing Speed According to this criterion, there are the following categories of printers: Serial printers , which print the characters one by one. Their speed is expressed in characters per second, and it can reach a few hundreds of characters per second. Line printer...
4 Printers In order to guide the droplets, they are charged electrostatically with electrodes placed in the area of droplet separation. Since the inkjet is electrically connected to ground, the droplets formed are charged with a polarity opposite to that of the positive electrode. After separation, ...
5 Input/Output Systems and Peripheral Devices chamber. Each nozzle’s chamber has a flexible casing that can be deformed with a piezoelectric crystal in order to generate a droplet. After the droplet has been generated and the casing has returned to its initial form, the chamber is refilled through c...
