Tandy DMP 106 User manual

TANDY®
Dot Matrix Printer
DMP 106
OPERATION MANUAL
CAT. NO. 26-2802

For your own protection, we urge you to record the serial number of this unit in
the space provided. You
will find the serial number on the back panel of the
unit.
Serial
Number _

TERMS AND CONDITIONS OF SALE AND LICENSE OF TANDY COMPUTER EQUIPMENT AND
SOFTWARE PURCHASED FROM RADIO SHACK COMPANY-OWNED COMPUTER CENTERS, RETAIL
STORES AND RADIO SHACK FRANCHISEES OR DEALERS AT THEIR AUTHORIZED LOCATIONS
LIMITED WARRANTY
CUSTOMER OBLIGATIONS
A CUSTOMER assumes full responsibility thaf this computer hardware purchased (the "EQuipment'), and any
copies of software Included with the EQuipment or licensed separately (.the "Software') meets the specifications,
capacity, capabilities, versatility, and other reqUIrements of CUSTOMER
CUSTOMER assumes full responsibility tor the condition and eftectlveness at the operating enVironmenf In which
the EQUipment and Software are fa funcflon, and for ItS Installaflon
II, L1MITEO WARRANTIES AND CONDITIONS OF SALE
A For a period of ninety (90) calendar days from the date of the Radio Shack sales document received upon
purchase of the EQUipment RADIO SHACK warrants to the Original CUSTOMER thaf the EQUipment and the
medium upon which fhe Software IS stored IS free from manufacturing defects. This warranty is only applicable
to purchases of Tandy Equipment by the original customer from Radio Shack company-owned computer
centers, retail stores, and Radio Shack franchisees and dealers at their authorized locations The warranfy IS
vOId If the EQUipment or Software has been sublected to Improper or abnormal use. If a manufacturing defect IS
discovered dUring the sfafed warranty period, the defective EQUipment must be returned to a Radio Shack
Compul€r Center, a Radio Shack ret,,1 store, a participating Radio Shack franchisee or a partlclpaflng Radio Shack
dealer for repair, along with a copy of the sales document or lease agreement The original CUSTOMER'S sale and
exclusive remedy In the evenf of a defect IS limited to the correction at the defect by repair, replacement or
refund of the purchase price. at RADIO SHACK'S election and sale expense RADIO SHACK has no obligation to
replace or repaIr expendable Items.
B. RADIO SHACK makes no warranty as to the deSign, capability, capacity, or sUitability for use of the Software
except as provided In this paragraph. Software IS licensed on an "AS IS" baSIS, Without warranty, The Original
CUSTOMERS exclUSive remedy, In the evenf of a Software manufactUring defect, IS ItS repair or replacemenf
Within thirty (30) calendar days of fhe date of the RadiO Shack sales document received upon license of the
Software The defective Software shall be returned to a RadiO Shack Computer Center, a RadiO Shack ref"l store.
a participating RadiO Shack franchisee or RadiO Shack dealer along With the sales document
Except as provided herein no employee, agent fr.anchlsee, dealer or ,other person IS authOrized to give any
warranties of any nature on behalf of RADIO SHACK
EXCEPT AS PROVIDED HEREIN, RADIO SHACK MAKES NO EXPRESS WARRANTIES, AND ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE IS LIMITED IN ITS DURATION
TO THE DURATION OF THE WRITIEN LIMITED WARRANTIES SET FORTH HEREIN,
Some states do not allow limitations on how long an Implied warranty lasts, so the above IlmltatlOn(s) may not
apply to CUSTOMER
III. LIMITATION OF LIABILITY
A EXCEPT AS PROVIDED HEREIN, RADIO SHACK SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO CUSTOMER
OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED OR
ALLEGED TO BE CAUSED DIRECTLY OR INDIRECTLY BY "EQUIPMENT" OR "SOFTWARE" SOLD, LEASED,
LICENSED DR FURNISHED BY RADIO SHACK, INCLUDING, BUT NOT LIMITED TO, ANY INTERRUPTION OF
SERVICE, LOSS OF BUSINESS OR ANTICIPATORY PROFITS OR CONSEQUENTIAL DAMAGES RESULTING FROM
THE USE OR OPERATION OF THE "EQUIPMENT" OR "SOFTWARE," IN NO EVENT SHALL RADIO SHACK BE
LIABLE FOR LOSS OF PROFITS, OR ANY INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF
ANY BREACH OF THIS WARRANTY OR IN ANY MANNER ARISING OUT OF OR CONNECTED WITH THE SALE,
LEASE, LICENSE, USE OR ANTICIPATED USE OF THE "EQUIPMENT" OR "SOFTWARE,"
NOTWITHSTANDING THE ABOVE LIMITATIONS AND WARRANTIES, RADID SHACK'S LIABILITY HEREUNDER FOR
DAMAGES INCURRED BY CUSTOMER OR OTHERS SHALL NOT EXCEED THE AMOUNT PAID BY CUSTOMER FOR
THE PARTICULAR "EQUIPMENT" OR "SOFTWARE" INVOLVED,
RADIO SHACK shall nof be liable for any damages caused by delay In delivering or furnishing EQUipment andor
Software
No action arising out of any claimed breach of thiS Warranfy'or transactions under thiS Warranty may be brought
more than two (2) years after the cause of action has accrued or more than four (4) years after fhe date of the
RadiO Shack sales document for the EQUipment or Software, whichever first occurs.
Some states do not allow the IImltaflon or exclUSion of InCidental or conseQuent,,1 damages. so the above
IlmltatlOn(s) or excluslon(sl may not apply to CUSTOMER
IV, SOFTWARE LICENSE
RADIO SHACK grants to CUSTOMER a non-exclUSive, paId-up license to use the TANDY Software on one computer,
subject to the follOWing provIsions
A Except as otherwise provided In thiS Software license, applicable COPYright laws shall apply to the Software
B Title to the medium on which the Software IS recorded (cassette and or diskette) or stored (ROM) IS transferred to
CUSTOMER, but not title to the Software
CUSTOMER may use Software on a multiuser or network system only If either, the Software IS expressly labeled
to be for use on a multiuser or network system or one copy of thiS software IS purchased for each node or
terminal on which Software IS to be used Simultaneously.
CUSTOMER shall not use make, manufacture, or reproduce copies of Software except for use on one computer
and as IS specifically proVided In Ih,s Software License Customer IS expressly prohibited from disassembling the
Software.
CUSTOMER IS permitted fo make additIOnal copies of the Software only for backup or archival purposes or If
additional copies are reqUIred In the operation of one computer With the Software, but only to the extent the
Software allows a backup copy to be made. However, for TRSDOS Software, CUSTOMER Is permitted to make a
limited number of additional copies for CUSTOMER'S own use,
CUSTOMER may resell or distribute unmodified copies of the Software provided CUSTOMER has purchased one
coPy of the Software for each one sold or distributed. The provIsions of thiS Software License shall also be
applicable to third parties receiving copies of the Software from CUSTOMER
G All COPYright notices shall be retaIned on all copies of the Software,
V, APPLICABILITY OF WARRANTY
A The terms and conditions of thiS Warranty are applicable as between RADIO SHACK and CUSTOMER to either a
sale of the EQUipment and or Software license to CUSTOMER or to a transaction whereby RadiO Shack sells or
conveys such EQUipment to a third party for lease to CUSTOMER
The limitations of liability and Warranty provIsions herein shall Inure to the benefit of RADIO SHACK, the author,
owner and or licensor of fhe Software and any manufacturer of fhe EQulpmenf sold by RadiO Shack
VI. STATE LAW RIGHTS
The warranties granted herein give the orlgina' CUSTOMER specific legal rights and the original CUSTOMER may
have other rights which vary from state to state 686

The FCC Wants You to Know
This equipment generates and uses radio frequency energy. If not installed and used properly,
that is in strict accordance with the manufacturer's instructions, it may cause interference to
radio and television reception.
It has been type tested and found to comply with the limits for aClass B computing device
in accordance
with the specifications in Subpart J of Part 15 of FCC Rules, which are designed
to provide reasonable
protection against such interference in aresidential installation.
However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause interference to radio or television reception, which can be
determined by
turning the equipment off and on, the user is encouraged to try to correct the in·
terference by one or more
of the following measures:
Reorient
the receiving antenna
Relocate
the computer with respect to the receiver
Move
the computer away from the receiver
•Plug the
computer into a different outlet so that computer and receiver are on different
branch circuits.
Warning
This equipment has been certified to comply with the limits for aClass B computing device,
pursuant
to Subpart J of Part 15 of FCC Ruies. Only peripherals (computer inputlouput
devices. terminals, printers. etc.) certified to comply with the Class B limits may be attached to
this computer. Operation with non-certified peripherals is likely to result in interference to
radio and TV reception.
2/86
Dot Matrix Printer DMP 106 Operation Manual:
Copyright ©1986 Tandy Corporation
Fort Worth, Texas 76102
All rights reserved.
Reproduction or use, without express written
permission from Tandy Corporation
and/or its
licensor,
of any portion of this manual is pro-
hibited. While reasonable efforts have been
taken in the preparation
of this manual to as-
sure its accuracy, Tandy Corporation assumes
no liability resulting from any errors or omis-
sions in this manual, or from the use
of the in-
formation contained herein.
IBM
is aregistered trademark of International
Business Machines Corp.
10 9 8 7 6 5 4 3 2

Contents
Introduction ,...... .. ... 1
1Description of the DMP 106 ............ 3
2Setting Up the DMP 106 . . . . .. ......... 9
Paper Separator Installation. ................. 10
Tractor Installation and Removal ............. 10
Paper Loading 12
Ribbon Installation/Replacement. . . . . . . . . . . . . 16
Setting Print Function (DIP) Switches , 19
Connecting the DMP 106 to aPower Source. .. 21
Carriage Movement Test , 21
Self-Test , 22
Connecting the DMP 106 to aComputer 22
Power-Up Sequence. . . . . . . . . . . . . . . . . . . . . . . .. 24
3Using the DMP 106
(General Printer Operation) ,..... .. 25
Control Codes , 25
Sending Control Codes from BASIC. ....... .. 26
Character Printing Mode 27
Graphics Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 27
Selecting aPrint Mode , 28
4Print Font Styles and Character Widths.. 29
Selecting Font Styles 29
Standard Character Font Style. ............. .. 30
Graphics Characters. . . . . . . . . . . . . . . . . . . . . . . .. 31
Wrap-Around , 32
Elongated Characters. . . . . . . . . . . . . . . . . . . . . . .. 32
I( r/' A. \,//
~ "\
"---.J

Bold Characters 33
Mixing Bold and Elongated ................ .. 34
Superscript and Subscript " 34
Selecting Character Sets 35
5General Control Codes " 37
Line Feed Codes (LF) " 37
Special Line Feed Codes. .................. .. 37
Carriage Return (CR) 38
Setting Top-of-Form and Form Length " 39
Entering IBM Mode " 39
Ignored or Undefined Codes , " 39
DMP 106 Buffer Operation " 40
6Character Printing Mode " 43
Repeat Printing " 43
Underline Printing " 43
Print Head Positioning .................... .. 44
Printing Directions "
47
7Graphics Mode. . ....... .... .. .. . .. .. .. . . .. 49
Printing Graphics Patterns " 51
Line Feed. ............................... .. 53
Repeat Function " 54
Print Density " 54
Leaving Graphics Mode 55
Mixing Modes on the Same Line 55
Freehand Drawing .................. .. 55
8IBM Emulation Mode. ......... .... ..... .. 59
Description of the IBM Emulation Mode .... .. 59
Carriage Return 59

Vertical Formatting Control Codes. ......... .. 60
Horizontal Formatting Control Codes . . . . . . . .. 62
Printing Mode Control . . . . . . . . . . . . . . . . . . . . .. 63
Other Control Codes . . . . . . . . . . . . . . . . . . . . . . .. 69
Appendices
AControl Code Summary. .... ..... .. ..... ..
73
Tandy Control Codes 73
IBM Control Codes.. . . . . . . .. ............. .. 76
BInterface .. ;.... .. ....... .. .............. .. 79
Parallel Interface 79
Serial
Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
CCharacter Sets. ........... .. ..... .. ........ 85
Tandy Character Sets 85
IBM Character Sets . . . . . . . . . . . . . . . . . . . . . . . .. 89
DProgramming Information .. .. ..... .... 93
Programming Examples 94
ECare and Maintenance .. .. ....... .. ..... .. 97
Care. .. .. .. .. .. .. . .. 97
Maintenance 98
If You Have Problems 98
Printing Limits (Duty Cycle) .. . . . . . . . . . . . . . .. 100
FSchematic Diagram.. .. .. .. .. .. .. .. .. . .. ... 101
G Specifications.............................. 103

Introduction
Tandy is proud to introduce the newest addition to its line -the DMP 106.
It is avery portable dot-matrix printer which can perform avariety of differ-
ent printing operations. For instance, it can print:
•Standard characters -Normal, Condensed and Compressed.
•Graphics characters.
The DMP
106 operates in two modes:
•Character Printing Mode for output
Of program listings, report writing,
or the creation
of any text documentation.
•Graphics Mode for drawing pictures, figures, or graphs.
In the Character Printing Mode, the DMP 106 prints monospaced, 9x7dot-
matrix characters.
In Graphics Mode, you can use graphic data to draw just about any type
of graphic configuration you desire.
You can use two types
of paper with the DMP 106:
•Standard (4" -9.5" wide) computer fanfold forms with guide holes. The
Printer can also print one original plus one carbon copy.
•Standard (4" -9.5" wide) single-sheet typewriter paper.
Other software-controlled features include:
•Bidirectional minimum-distance access carriage motion.
•Full, half, and
3/4 Forward Line Feed.
•Underline capability.
and much more!

Description of t e DMP 106 1
Unpacking
Carefully unpack the DMP 106, being sure to locate the Ribbon Cassette
and the Paper Separator. Keep the empty ox and packing materials just
in case you ever need to transport the Prin er.
Figure 1. DMP 106 Dot Matrix Printer
3

Description of the DMP 106
Be sure to remove the Yellow Band from the Carriage. (Refer to Figure 2.)
Figure 2. Removing the Yellow Band
Read this manual carefully. The more familiar you become with the DMP
106, the more value you will get from the Printer.
4

Chapter 1
®
®
Figure 3. DMP 106 (Top View)
CD Power ON/OFF Switch. Press the side of the switch marked" I" to turn
the power ON. Press the switch the other way to turn the power OFF.
Note: Turning the power OFF and ON during operation may cause loss
of the current data.
Figure
4. Power Switch
5

Description of the DMP 106
@ POWER ON Indicator. Illuminates when the DMP 106 is properly con-
nected with
the Power ON/OFF Switch ON.
@ ON-LINE/OFF-LINE Switch. When pressed in, the Printer is ready to
communicate with the computer. When pressed again and released, the
Printer stops the communication.
@ Platen Pressure Lever. This lever has two positions. One is Release, for
the tractor feed feature (toward the front of the Printer); the other is
Friction, for the friction feed feature (toward the rear side
of the Printer).
® Paper Bail. For optimum print quality, keep the Bail down on the paper.
® Tractor Feed. This Tractor Feed is removable. See Setting Up the
DMP 106 for details on using the Tractor Feed. You can remove the
Tractor when printing on single-sheet paper.
(}) Tractor Cam. Whenthe Cam is moved toward the rear side of the Printer,
the Tractor can slide from side
to side, and when moved toward the front,
it is locked
into position.
® Paper Feed Knob. Turn clockwise to manually advance the paper.
® Paper Insertion Opening. Insert the paper here.
@) Platen.
® Top Cover.
@ Transparent Cover. Should be opened while handling the Paper Bail.
@ Hole Cover. Put this Cover in place when the Tractor is removed.
@ Paper Separator.
@ AC Power Cord.
Model II users: If aBASIC program stops execution because of a Printer
error, typing: CON T [ ENTER Iwill cause printing to resume. However the en-
tire contents
of the print buffer will be printed, starting with the current Print
Head position.
6

CD
®® ®
Chapter 1
®
Figure 5. DMP 106 (Rear View)
CD Power Cord. Plug the power cord into awall outlet or approved power
strip.
@Parallel Interface Connector. If your computer has parallel interface
capabilities, connect the cable here.
See Setting Up the DMP 106 for
the right cable for your computer.
@Serial Interface Connector. If you have acomputer with serial printer
interface capabilities, connect the cable to the serial interface connector
indicated.
See Setting Up the DMP 106 for the right cable for your Color
Computer or Data Terminal.
Note: Serial interface
is not supported in IBM emulation mode.
@Print Function (DIP) Switches. The settings of these switches will deter-
mine exactly how your Printer prints in various situations.
See Setting
Print Function (DIP) switches.
®Ground Screw. Connect the ground wire from the shielded printer cable
here.
7

Setting Up the DMP 106 2
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 -NOT
JUST THE FIRST TIME.
oFind agood spot for your Printer. Be sure to consider:
•
Work surface. Place the Printer on asturdy desk, table, or printer
stand.
•Length
of the printer cable. This determines the maximum distance
allowed between your computer
and printer.
•Papertakes up space.
Be sure to leave enough room for smooth paper
flow.
•Noise factors. Situate the Printer as far as possible from noise gener-
ators such as refrigerators
and industrial equipment.
[Z] Be sure the Power Switch is OFF.
Figure 6.
Power Switch (OFF Position)
[2] Remove the packing materials, including the Yellow Band.
[Z] Install continuous form fanfold paper or single-sheet paper.
oCheck the Ribbon Cassette. If it has not been installed, see Ribbon In-
stallation/Replacement.
oSet the Print Function (DIP) Switches (on the rear side of the Printer).
oConnect the AC power plug to a3-wire, 120 volt, 60 Hz grounded AC
outlet (220/240 V, 50 Hz where the unit is so marked).
9

Setting Up the DMP 106
oCheck to see if the Printer is ready by running the Self-Test.
oConnect the interface cable from the computer to the printer interface
connector.
oTurn the Power ON and check that the Power ON Indicator (on the Con-
trol Panel)
is illuminated.
oPlace the ON-LINE/OFF-LINE Switch in the ON-LINE position.
o Be sure that the Top Cover is closed securely.
Paper Separator Installation
Install the Paper Separator by inserting the tips of the Separator into holes
provided on the top
of the Printer (behind the Paper Insertion Opening).
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 achieved
if it is removed -especially when using
single sheets
of paper.
Installing the Tractor
1. Set the Power ON/OFF Switch to OFF.
2. Open the Top Cover and remove the Hole Cover.
3. Move the Paper Bail forward (toward the front of the Printer)
4. Place the pins in the Tractor onto the cutouts,
as shown. Then push down
on the Tractor until it
is securely locked into position.
5. Move the Paper Bail back against the platen.
6. Close the Top Cover.
10

Chapter 2
Removing the Tractor
1. Set the Power ON/OFF Switch to OFF.
2. Open the Top Cover.
3. Move the Paper Bail forward (toward the front of the Printer).
4. Hold the front bar of the Tractor in your hand and pull upward; then
push it away and remove the Tractor.
5. Move the Paper Bail back against the platen.
6. Replace the Hole Cover.
7. Close the Top Cover.
Figure 7. Installing the Tractor
11

Setting Up the DMP 106
Paper Loading
Warning! When loading paper (single-sheet or fanfold), be sure the paper
correctly enters the Paper Insertion Opening.
It is very important that the paper enters the DMP 106 straight. The paper
must be directly behind the Printer or paper skewing or jamming may oc-
cur. Proper positioning
of the Paper Separator is also important to help pre-
vent paper jamming.
PRINTER
I I
I I
L-~ I_
I I
I I
I I
iPAPER I
WRONG RIGHT
If the fanfold paper is correctly loaded, it should enter between the body
of the Printer and the PaperSeparator. Once the paper is loaded and power
is ON, press to set the ON-LINE/OFF-LINE Switch to ON-LINE. Then you
may begin printing.
Sing~e-Sheet paper Loading
1. Be sure the Power Switch is OFF.
2. Remove the Tractor and replace the Hole Cover. (See Tractor Installa-
tion and Removal.)
3. Move the Platen Pressure Lever forward (toward the front of the Printer).
4. Open the Transparent Cover and tilt the Paper Bail forward.
5. Insert the paper into the Paper Insertion Opening and push the Platen
Pressure Lever back toward the rear side
of the Printer. Use the Paper
Feed Knob to pull the paper around until it appears between the Platen
and the Print Head.
6. Move the Platen Pressure Lever forward
to align the paper. Push the
Platen Pressure Lever back again.
12