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  9. Radio Shack DMP-200 User manual

Radio Shack DMP-200 User manual

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IfeVs?:
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Contents
Introduction 1
1/ Description of the DMP-200 3
Top Panel 4
Rear Panel .....5
2/ Setting Up the DMP-200 7
Tractor Installation and Removal *7
How Does the DMP-200 Handle Paper? 9
Paper Loading 9
Ribbon Installation/Replacement 13
Print Function (DIP) Switches 14
Setting the Rotary Switch 16
Connecting the DMP-200 to aPower Source 16
Carriage Movement Test 17
Self-Test 17
Connecting the DMP-200 to aTRS-80 17
Power-Up Sequence 18
3/ Using the DMP-200 (General Printed Operation). .... 19
Control Codes 19
Sending Control Codes from BASIC 20
Data Processing Mode 20
Word Processing Mode ... .
.
21
Graphics Mode 21
Selecting aPrint Mode 21
4/ Print Font Styles and Character Widths 23
Selecting Font Styles 24
Standard Character Font Style 24
Correspondence Quality Font Style 25
Proportional Spaced Font Style 25
Graphic Characters 25
Right Justification 26
Wrap-Around 27
Elongated Characters 27
Bold Characters 28
5/ General Control Codes 29
Line Feed (LF) 29
Carriage Return (CR) 30
Backspace (BS) 30
Setting Top-of-Form and Form Length 31
Form Feed (FF) 31
Ignored or Undefined Codes 31
DMP-200 Buffer Operation 32
6/ Word and Data Processing Modes . . ...35
Superscript and Subscript 35
Repeat Printing 35
Underline Printing 36
Print Head Positioning . . 36
7/ Graphics Mode 39
Printing Graphics Patterns 40
Line Feed 41
Repeat Function 41
Print Density 42
Leaving Graphics Mode 42
Mixing Modes 42
Free Hand Drawing 42
Appendix A/ Control Code Summary 45
Appendix B/ Character Sets 49
Appendix C/ Programming Information 55
Appendix D/ Care and Maintenance 57
DMP-200 Printing Limits (Duty Cycle) 59
Appendix E/ Specifications 61
Introduction
Congratulations for selecting this Radio Shack computer product! The DMP-200 is a
high-density dot-matrix printer which can perform avariety of different printing operations.
For instance, it can print:
•Proportional spaced characters.
•Monospaced characters (Normal, Condensed and Compressed).
•Correspondence Quality characters.
•Graphic characters.
For maximum efficiency ,the DMP-200 operates in three modes:
•Data Processing Mode for fastest output of program listings or data.
•Word Processing Mode for letter-writing or the creation of any text documentation
.
•GraphicsMode for drawing pictures, figures, or graphs.
For word-processing, you'll find the DMP-200's Proportional spaced characters (created on
avariable 15x9 dot-matrix) can produce letter-quality results.
If, however, you need aprint-out that is produced faster, Monospaced characters (created
on an 9x8dot-matrix) are just the thing for you!
In the Graphics Mode, you can use graphic data to draw just about any type of graphic
configuration you desire.
You can use three types of paper with the DMP-200.
•Standard (4"- 10" wide) computer fanfold forms with guide holes. The Printer can also
print one original and up to two carbon-copies
.
•Standard single-sheet typewriter paper for use as an ordinary typewriter.
•Roll paper (8 Vi wide) with a1" core and amaximum diameter of 5".
Other software-controlled features include:
•Bi-directional logic-seeking carriage motion, (uni-directional in Graphic Mode.)
•Full- or Half-Line Forward and Reverse (for printing above or below the *'current' 'line)
and 3/4 Line Feed.
•Underline capability.
•Paper Empty sensor automatically stops the printer so you can replenish the paper.
•Parallel and Serial Interfaces.
and much more
!
1/ Description ofthe DMP-200
Carefully unpack the DMP-200, being sure to locate the Ribbon Cassette, the Paper Tray,
the Roll Paper Holder and the Roll Paper Shaft. Keep the empty box and packing material
just in case you ever need to transport the Printer.
Be sure to remove theprotective blackplastic tubefrom the rear Carriage Guide.
Figure 1. Removing the Black Tube
It's important to become familiar with the DMP-200 before you set it up and begin using it.
Figure 2. DMP-200 (Top View)
^!?WE
:
R
J
0nin
udi^t0r-Th'SIndic3tor wiI1 i^minate when the DMP-^00 is properly
connected and the Power ON/OFF Switch is set to ON. -uu is properly
@i^RT IndicatCfThls lamPwiil »me on when the Printer is out ofpaper when
there is acarnage fault, or when there is some son of electrical problem.
@SSSSnt TES
,
WUCh*^^ SWkCh mUSt be S£t t0 0N"LINE bef0re «he
2JSS£SrHZpnntmg at anytime orto use otherFront Pane! Switches -
©RESTART Switch. When the Printer runs out of paper, pushing this switch resumes
IZl1^- ?eV!0p after comPleti ™another line printing or loading new paSrTen
presses Switch to return the Printer to its statufbefore the out-oKr'cSndition
®fhtswkch^nJenuhiS SWkCh iS pr£SSed 'the paper wil1 advance one line -Holdine
theSwitch down will cause cont.nuous paper feed. The Printer must be OFF-LINE
beforepressing this Switch.
®1™%°N/0FF SwitCh-Pr£SS the white dot t0 tum the P°w"ON.Press the Switch
the other way to turn power OFF. Note that turning the power OFF and ON durin*
operation may cause loss of the current program.
®Print Head Control Lever. Move this Levertowards you (e.g. .move the Print Head
away from the paper) when changing ribbons. If printing is faint, move the Lever away
ZZ^?•* '
*
eP™1"6*1towards the paper); if smudging occurs during printing,
move the Print Head slightly away from the paper
®Platen Pressure Lever. If you are "friction feeding" paper (single sheets or roll papaer),
position this lever toward the rear of the printer to apply pressure on the Platen. If
you are "tractor feeding" (fanfold), position this lever toward the front of the printer.
CD Paper Bail Lever. For optimum print quality ,keep the Bail down on the paper (Lever
toward rear of printer)
.
®Tractor Feed. See Setting Up the DMP-200 for derails on using the Tractor Feed.
©Paper Feed Knob. Turn this Knob to manually advance the paper.
©Paper Insertion Opening. Be sure the paper enters the DMP-200 here (just
underneath the black metal shield).
©Paper Guide Rack. Prop this rack up for single sheet paper feeding, down for fan fold
paper, and remove it for roll paper feeding.
When the Printer stops because it is out of paper, the ALERT lamp will illuminate, and the Printer
automatically goes OFF-LINE. To continue printing press RESTART, then printing will be done
one more line, or insert more paper and press RESTART. The DMP-200 will automatically go
back ON-LINE (and continue printing without loss of data in the print buffer).
Model II users :If aBASIC program stops execution because of aPrinter error, typing:
CDNT (ENTER) after you have put the printer back on-line will cause printing to resume.
However, the entire contents of the print buffer will be printed starting with the current Print
Head position.
®©©
Figure 3. DMP-200 (Rear View)
©Parallel Interface Connector. If your TRS-80 has parallel interface capabilities
,
connect the cable here.
®Serial Interface Connector. If your TRS-80 has serial interface capabilities, connect
the cable here. See Setting Up the DMP-200 for the correct cable for your TRS-80.
®Function Selection (DIP) Switch. The settings of this switch define the printer's use.
©Rotary Switch. This switch selects the character style to be used by the printer.
©Power Cord. Plug the power cord into awall-outlet or approved power strip.
2/ Setting Up the DMP-200
This section will show you how to set up the DMP-200 so you can begin using it as quickly
as possible. This includes:
•Loading paper.
•Replacing aribbon.
•Connecting the DMP-200 to aTRS-80
and more!
The following Start-Up Checklist is asummary of how to set up your Printer. You should
follow this procedure every time you start-up the Printer —notjust the first time.
Find agood spot for your Printer. Be sure to consider:
•The Printer should be placed on asturdy work surface.
•The length of the printer cable will determine how far from the TRS-80 you can place
the Printer.
•Papertakes up space. Be sure to leave enough room forsmooth paper flow.
•Don't place the Printer near noise generators such as refrigerators and industrial
equipment.
Be sure the POWER switch (at left side of Printer) is OFF.
Remove the Top Cover and the packing materials.
Install continuous form fanfold paper, single-sheet paper, or roll paper. Refer to Paper
Loading.
Check the Ribbon Cassette. If it has not been installed, see Ribbon
Installation/Replacement.
Set Front Panel Switches, Rotary Dial and Print Function (DIP) Switch (rear of Printer).
Connect the AC powerplug to a3-wire, 120 volt, 60 Hz grounded AC outlet (220/240v,
50 Hz where the unit is so marked).
Check that the Printer is ready by running the Self-Test.
Connect the interface cable from the TRS-80 to the printer interface connector.
Turn the Power ON and check that the Power On Indicator (on the Front Panel) is
illuminated.
Push the RESTART Switch.
Place ON-LINE/OFF-LINE Switch in ON-LINE position.
Tractor Installation and Removal
This printer can be used with either the Tractor Feed system or the Friction Feed system.
The difference is that the Tractor Feed system is used with paper which has guide holes on
both edges while the paper used with the Friction Feed system does not have these holes.
The Friction Feed system may be used with the tractor installed; however, better
operation can be acheived if it is removed especially with single sheets of paper.