Digital Equipment Corporation LG31 Operator's Manual

LG31 PrinterInstallation/Operator’s ManualOrder Number EK-LG31E-IN-002Digital Equipment Corporation

PrefacePurposeThis manual provides information on the installation and operationof the LG31 300 LPM Line Matrix Printer. It contains instructionsand p

4.5.7 Buffer ClearUse the Buffer Clear procedure shown in Table 4-10 to clear the contentsin the printer’s buffer.Table 4–10: Buffer Clear ProcedureAc

Chapter 5PRINTER DIAGNOSTICS5.1 IntroductionThis chapter describes the LG31 self-tests and the alignment tests.5.2 Self-TestsThe printer automatically

5.2.2 Printing Self-TestThe LG31 printer can execute a printing self-test from either the outeror inner control panel. This test prints the 94 printab

Table 5–1: Print Test and Diagnostic Self-Test ProcedureAction ResultPress (3) ON LINEkey to put the printeroff-lineControl panel display [ O F L].Pre

Table 5–2: Diagnostic Fault CodesPrinter Displays Fault– No Fault[ 0 2 0] SMSM Lithium Battery (BT1) (see Table 7.2)[ 0 2 2] SMIM has insufficient RAM[

Table 5–2 (Cont.): Diagnostic Fault CodesPrinter Displays Fault[ 1 3 ] Head test failure (X indicates module numberof bad actuator. 1=left, 2=middle,

Fault Code Key:Display Location of Fault[ 0- - ] SMSM circuit board[ 41 - ] through [ 45 - ] Through [ 45 - ] SMIM circuit boards[ 49 - ] SMIH or SMMC

Chapter 6PRINTER OPERATION6.1 IntroductionThis chapter provides information on the operation of the LG31 printerand includes descriptions of the contr

Figure 6–1: Sprocket Hole Dimensioning Diagram0.25 in. (6.35mm)0.50 in. (12.70mm)0.156 in. (3.97mm)RE_UK00279M_89To load paper in the LG31, carry o

Figure 6–2: Paper Loading DiagramUPPER LEFTPAPER TRACTORPAPER GAPADJUSTERMARGINADJUSTMENTKNOBPAPERTHICKNESSSCALEPAPER TENSIONADJUSTMENTLEVERRE_UK00966

• Chapter 4 Setting Communications and Print Parameters –Describes the parameters that may be set on the LG31 printer.• Chapter 5 Printer Diagnostics

Figure 6–3: Paper Loading, Lower TractorRE_UK00967A_89COOLINGFANTRACTORS(PAPER DRIVEMECHANISM)PAPERSUPPLYPAPER TENSIONADJUSTMENT FINGERSPAPER LOWSWITC

6.3 Installing/Replacing Ribbon CartridgeTo install the ribbon cartridge, carry out the following steps:1. Open printer top access door with the cover

5. If replacing the ribbon cartridge unsnap ribbon cartridge holddownat left side of ribbon cartridge (see Figure 6-5).NOTEThe LG31 printer has a ribb

8. Tilt ribbon cartridge downward to the left and install left side first(left edge of cartridge will guide ribbon between the ribbon guide andshield a

Figure 6–6: Ribbon Cartridge Installation, Ribbon Guide and StrikerBarRE_UK00970A_89STRIKER BARRIBBONGUIDERIBBONRIBBONCARTRIDGE6.5 Paper MotionFor man

6.5.2 Line FeedTo perform a line feed operation, place the printer off-line ([OFL]isdisplayed). Press the LINE FEED key.See Chapter 4, Section 4.4.3 a

Figure 6–7: Margin Adjust KnobUPPER LEFTPAPER TRACTORPAPER GAPADJUSTERMARGINADJUSTMENTKNOBPAPERTHICKNESSSCALEPAPER TENSIONADJUSTMENTLEVERRE_UK00966A_8

Table 6–1: Low Paper Printing ProcedureAction ResultWhen the low paper switch is activated: Displayed alternately between[LoP]and[OnL].Printerremains

Table 6–1 (Cont.): Low Paper Printing ProcedureAction ResultWhen paper movement causes LPP mode tobe terminated.Displayed alternately between[ P o ] a

Table 6–1 (Cont.): Low Paper Printing ProcedureAction ResultPress (8) SET TOF, then (0) TEST CLR. Buffered lines are printed.Paper moves to first print

ConventionsIn writing this manual, the following conventions have been adopted forthe mechanical objects listed below• Control Panel Keys = Capitalize

<DC1><DC3><ESC>K<ESC>L<CR><LF><ESC><SP> YZ<CR><LF>.This is a HEX DUMP example printed at a

Chapter 7OPERATOR MAINTENANCE7.1 IntroductionThe LG31 printer does not require scheduled preventive maintenance.Operator maintenance consists of the f

7.2 Operator TroubleshootingFaults related to incorrect paper control or configuration settings areoperator correctable. Check the current configuration

Table 7–1 (Cont.): Possible Mechanical Problems and RemediesObserved Problem Probable Cause and RemediesLight printing. Ribbon worn; install new ribbo

Table 7–2: Possible Electrical Problems and RemediesObserved Problem Probable Cause and RemediesNo indication on frontpanel when powerswitch turned ON

Table 7–2 (Cont.): Possible Electrical Problems and RemediesObserved Problem Probable Cause and Remedies5. This display will be produced by the ribbon

Table 7–3: Factory SettingsSelectable Parameter Factory Set ConditionPrint Status Off-LineHorizontal Pitch 10 characters per 2.54 cm/inVertical Pitch

Table 7–4: Printer Parameters Power-Up SetSelectable Parameter Power-Up ConditionPrint StatusActive PositionUnderliningBoldingExpansionUnsolicited Rep

7.3.3 Reset StateWhen the LG31 printer receives a reset sequence from the host computeror the inner control panel (operator’s input), the printer is s

Table 7–6: Reset State Default ParametersSelectableParameter Reset Default ConditionPrint Status On-line (ready)Horizontal Pitch 10 characters per 2.5

3. If required, report the problem to Digital Equipment CorporationCustomer Service. Consult your service contract for the informationrequired to proc

Appendix ALED DISPLAY LISTA.1 List of All Control Panel ReadoutsThe following is a list of every message indication that may appearon the LG31 printer

[.F A d] Forms adjustment. The printer is in Forms Adjustment mode.[.F n c] Function. The printer has entered the function mode.[ F o n] Font.[.F S U]

[ P o ] Paper out. The paper supply has run out.[ P r o] Program. The printer is in Program mode.[ r c o] Ribbon cartridge out.[ S b o] Striker bar op

[ 4 9 0] SMMC shuttle motor drive.[ 4 9 1] SMMC shuttle frequency out of range.[ 4 9 2] SMIH imaging hardware failure.[ 4 9 3] SMMC or SMIH board (no

[06L]through[10L]Number of lines per inch (LPI) while selecting from the throughmenu.[10i]through[15i]CPI in italics while selecting from the menu.[n0

Appendix BPARAMETER SELECTIONFigure B–1 contains the congfiguration menu with the parameter optionsavailable on the LG31 printer.Figure B–2 contains th

Figure B–1: Configuration Menu with Program Mode ParametersLPI0. Exit1. 6 Ipi2. 8 Ipi3. 10 IpiForm Control0. Exit1. Form Feed2. Line Feed (Forward)3. L

Figure B–2: Function Mode OptionsCONTROL PANEL PUSHBUTTON FUNCTIONSPRINTERINITIALIZATIONRESET TO USERSMENU PARAMETERSNO CHANGERETURN TO OFF LINEINITIA

Appendix CLG31 COUNTRY KITSFinal Country Kit OptionsLGK31-AA U.S., Canada and Mexico/English, Power Cord, 17-00083-09LGK31-AD Denmark/English, Power C

All country kits include the following.Kernel Documentation Kit EK-OLG31-DKEK-LG31E-UGEK-LG31E-INLG31 User Guide (English)LG31 Installation/Operator’s

Chapter 1GENERAL INFORMATION1.1 OverviewThis chapter contains an overview of the LG31 300 LPM Line MatrixPrinter (hereafter referred to as the LG31 pr

IndexAadjusting form position, 4–36, 4–37aligning paper, 6–9alignment tests, 5–6audio alarm, 1–2, 3–10Bbacking up the paper, 4–40baud rate, 4–8, 4–9bo

function mode, 4–28form set-upbuffer clear, 4–41forms adjustment, 4–36margin set-up, 4–38procedure, 4–32reverse form feed, 4–40top-of-form, 4–33initia

print parameter categories (cont’d.)printer control straps, 4–26 to4–27vertical tab stops, 4–26print patterns, 4–35print speed, 1–2Print speed, 1–9pri

The firmware resident in the printer interprets and executes commands(control sequences) sent from the host computer or entered by an oper-ator at the

Figure 1–1: LG31 PrinterRE_UK00220A_89DISPLAYWINDOWTOPENCLOSURELEFTCOVERFRONTDOORPOWERSWITCH(CIRCUITBREAKER)REARCOVERPAPERRACKPAPERSTACKINGGUIDESRIGHT

Configuration of the printer is accomplished with the use of the controlpanel and printed menus. The printer is capable of operating in either7 or 8 bi

Table 1–1: LG31 Printed Circuit BoardsBoard Description Part No. LocationSCPI Shuttle ControlPanel Interface29-26721-00 On access door betweenouter an

• Single, double, or triple-height characters• Autowrap• Line feed/new line mode• Hex dumping• Digital multinational 8-bit character set (U.S. ASCII)•

1st Edition, November 19872nd Edition, June 1989The information in this document is subject to change without notice and shouldnot be construed as a c

Table 1–2 (Cont.): LG31 Printer SpecificationsNOTEThe printer’s universal power supply automaticallyaccepts international voltage and frequency variati

Table 1–2 (Cont.): LG31 Printer SpecificationsPaper/FormsPaper Width 76.2 mm (3 in) to 420.1 mm (16.54 in)Form Length 8.4 mm (0.33 in) to 559 mm (22 in

1.6.4 Print SpeedsPrint speeds are quoted in lines per minute (LPM) with the printer setat 6 LPI, for each available combination of font and horizonta

1.6.5 Resident Character SetsThe resident character sets are:Digital SupplementalU.S. ASCIIISO Great BritainDigital HollandDigital FinlandISO FranceDi

Chapter 2INSTALLATION AND CHECKOUT2.1 OverviewThis chapter contains the unpacking, checkout and installation proce-dures for the LG31 printer. This pr

2.2 Unpacking2.2.1 InspectionThere are two cartons for each printer:1. Country Kit carton (OPEN FIRST label) containing:• AC power cord (country speci

2.2.2 Unpacking ProcedureUse the following procedure and illustrations when unpacking the LG31printer. Save the red shipping screws, blocks, and brack

4. Open the carton and lift out the package containing the ramps fromthe top of the packing material (see Figure 2–2).Figure 2–2: Opening CartonRE_UK0

6. Remove the four metal brackets holding the printer to the woodenskid using a 9/16" AF Wrench (see Figure 2–3).Figure 2–3: Removing Metal Brack

8. Position the ramps as shown in Figure 2–4 and force the teeth intothe top level of the skid.Figure 2–4: Positioning RampsRE_UK00278M_89NoteAlign ra

ContentsPreface xiChapter 1 GENERAL INFORMATION1.1 Overview ...1–11.2 General Description ...

9. Carefully roll the printer down the ramp (see Figure 2–5).Figure 2–5: Removing Printer from PalletRE_UK00962A_8910. Pull open printer front door (h

11. Using an 8 mm socket wrench, remove four M5 x 30 red hex-headcap screws, M5 lock washers, and M5 plain washers securing theshuttle shipping blocks

Figure 2–7: Top View - Shuttle AreaRE_UK00752A_89RED SHUTTLE SHIPPING BLOCKS(REAR PAIR)RED SHUTTLE SHIPPING BLOCKS(FRONT PAIR)SCREW (RED),LOCKWASHER,P

20. Secure clip end of static strap to paper tray. The stub end at theinterface connector plate will be connected as shown in Figure 2–8.21. Install p

2.3 InstallationAn installation area of 137 cm wide by 107 cm deep (54 inches wide x 42inches deep) is required. This provides free access and clearan

2.4 Apply Power to the LG31The LG31 printer contains a universal power supply that works, withoutmodification or adjustment, with any input in the spec

Figure 2–9: Power ConnectionSPSXRECTIFIERP1P2P3AC SWITCH BOXLINEFILTERAC POWERSOCKETHOLD UPCAPACITORDC POWERDISTRIBUTIONCABLESPSDSURGE CAPACITORPOWER

2.5 Powering and Testing the LG31 PrinterLG31 printer testing includes a self-test and a print test. The self-testis performed:• Every time the printe

Figure 2–10: Cover Interlock SwitchTOP COVERINTERLOCKSWITCHINTERLOCKSWITCHTOPENCLOSURERE_UK00963A_892. Open the top cover and pull the interlock switc

When you reach this point, you have verified that the print quality isacceptable, and have a copy of the configuration of the LG31 as shipped.The printe

Chapter 2 INSTALLATION AND CHECKOUT2.1 Overview ...2–12.2 Unpacking ...

Input: 9600 LFfill: 0 Width: 300 Parity: NoneOutput: 9600 CRfill: 0 Page: 66Terminal CharacteristicsInteractive Echo Type_ahead No EscapeNo Hostsync TTs

2.6.5 RSTS/E SettingsRefer to the RSTS/E System Manuals.Note* Indicates that the current setting is not affected by theterminal type.Table 2–1: Defaul

2.7 Connecting the Host to the LG31 PrinterThe LG31 printer contains an EIA RS-232-C serial 25-pin interfaceconnector. The cable from the host to the

Chapter 3CONTROLS AND INDICATORS3.1 IntroductionThis chapter describes all the operating controls and indicators availableon the LG31 printer.3.2 Powe

Figure 3–1: Power SwitchPOWERSWITCH(CIRCUITBREAKER)POWERCABLEINTERFACECABLERE_UK00247A_893–2 CONTROLS AND INDICATORS

3.3 Outer Control PanelFigure 3–2: Location of the Outer Control PanelDISPLAYWINDOWCONTROLPANELRE_UK00964A_89The outer control panel, which is located

• Run the print test and the self-test.• Switch the printer between the on-line and off-line modes of opera-tion.• Perform form feed operations.3.3.1

NOTEThere is an audio alarm mounted on the inner control panel,which sounds when you power up the printer, and each timeyou press one of the control p

Figure 3–4: Cover Interlock SwitchTOP COVERINTERLOCKSWITCHINTERLOCKSWITCHTOPENCLOSURERE_UK00963A_893–6 CONTROLS AND INDICATORS

3.5 Inner Control PanelFigure 3–5: Location of the Inner Control PanelRE_UK00965A_89INNERCONTROLPANELThe inner control panel, which is located inside

Chapter 4 SETTING COMMUNICATIONS AND PRINTPARAMETERS4.1 Introduction ...4–14.2 Interface Control—Host to Printe

— (2) FORM FEED— (3) ON LINE— (4) LINE FEED— (5) CPI LPI— (6) PAPER REV— (7) FONT— (8) SET TOF— (9) FCTFigure 3–6: The Inner Control Panel.. .TESTCLRF

Figure 3–7: Configuration MenuTHE PRESENT CONFIGURATION IS: (44A511526 SY - 44A511527 IM)FIRMWARE REVISION LEVEL V2.31. Font:Style - 44A511527 Dataproc

3.5.1 Three-Character LED DisplayThe three-character/three-dot LED display (see Figure 3–8) is multifunc-tional and indicates the following.• Printer

Figure 3–8: The Inner Control Panel Showing Display, Audio Alarm,Initialization Switch.. .AUDIOALARMDISPLAYINITIALIZATIONSWITCHFCTMODEFORMLOADEDREADYI

3.5.4 Key FunctionsThe three types of key functions are:1. Initial key function (ON LINE, TEST CLR, PAPER REV). Refer toTable 3-1 for list.2. Function

Figure 3–9: Function Mode Key OperationsCONTROL PANEL PUSHBUTTON FUNCTIONSPRINTERINITIALIZATIONRESET TO USERSMENU PARAMETERSNO CHANGERETURN TO OFF LIN

Table 3–1: Initial Key FunctionsKeyKey Function inOFF LINE ModeKey FunctioninON LINE Mode(3)ON LINEU = ON LINE selected.Toggles state to on-line mode.

Table 3–1 (Cont.): Initial Key FunctionsKeyKey Function inOFF LINE ModeKey FunctioninON LINE Mode[ 05] [ 05] [n05] [n05][ 10] [ 10] [OcA] [Ocb][ 12] [

Table 3–1 (Cont.): Initial Key FunctionsKeyKey Function inOFF LINE ModeKey FunctioninON LINE Mode(9)FCTEnters Function Selection state (refer to funct

3.7 Print Gap ControlThe print gap control is a rotary adjustment that adjusts the distancebetween the paper and the print heads (see Figure 3–10). It

Chapter 5 PRINTER DIAGNOSTICS5.1 Introduction ...5–15.2 Self-Tests ...

Chapter 4SETTING COMMUNICATIONS AND PRINTPARAMETERS4.1 IntroductionThis chapter defines the user settable parameters of the LG31 printer.There are two

There are two parameters and two sets of adjustments that can be madein the function mode. In the function mode, you can perform operationsin one of t

Figure 4–2: Location of the Serial Interface ConnectorPOWERSWITCH(CIRCUITBREAKER)POWERCABLEINTERFACECABLERE_UK00247A_89SETTING COMMUNICATIONS AND PRIN

Table 4–1: Pin AssignmentsPin SignalSignalDirection Description1 AA ChassisGnd– Frame (Protective) Ground2 BA (TX)(See Note 2)From Printer Printer tra

Table 4–1 (Cont.): Pin AssignmentsPin SignalSignalDirection Description20 CD (DTR) From Printer Data Terminal Ready. If so strapped(A7 IN), data termi

1. Turn the printer power on. Open the top cover and pull the interlockswitch plunger up to its highest point. This activates the innercontrol panel.2

Figure 4–3: Configuration MenuTHE PRESENT CONFIGURATION IS: (44A511526 SY - 44A511527 IM)FIRMWARE REVISION LEVEL V2.31. Font:Style - 44A511572 Dataproc

4.3.2 Communications ParametersUnder the Interface Control category in the function mode, there are fivesubcategories:1. Interface type — There is one

— Press (1) to enable the strap (an "i" in the third digit on thedisplay).— Press (2) to remove the strap (an "o" in the third dig

Figure 4–4: Interface Control StrapsInterface Control0. Exit1. Interface Type2. Interface Straps A3. Interface Straps B4. Speed5. ParityStraps:0. Exit

Appendix A LED DISPLAY LISTA.1 List of All Control Panel Readouts . . . ... A–1Appendix B PARAMETER SELECTIONAppendix C LG31 COUNTRY

Figure 4–5: Interface Control SpeedInterface Control0. Exit1. Interface Type2. Interface Straps A3. Interface Straps B4. Speed5. ParitySpeed -0. Exit1

Figure 4–6: Interface Control ParityInterface Control0. Exit1. Interface Type2. Interface Straps A3. Interface Straps B4. Speed5. ParityParity -0. Exi

Table 4–2: Serial Interface Strapping OptionsStrapNumber Action When In (In = 1; Out = 0)READ/BUSY CONTROLA1 Not assignedA2 Not assignedA3 Not assigne

Table 4–2 (Cont.): Serial Interface Strapping OptionsStrapNumber Action When In (In = 1; Out = 0)A26 Enable transmission of an <ACK> on receipt

5. Horizontal Expansion6. Vertical ExpansionTo select the font category:1. Place the printer off-line ([OFL]isdisplayed). If the printer ison-line ([O

4.4.1.1 StyleFigure 4–9: Font StyleFONT:0. Exit1. Style2. CPI3. Country4. Mode5. Horizontal Expansion6. Vertical ExpansionStyle -0. Exit1. 44A511367 D

4.4.1.2 CPIFigure 4–10: Font CPIFONT:0. Exit1. Style2. CPI3. Country4. Mode5. Horizontal Expansion6. Vertical ExpansionCPI -0. Exit1. 5 CPI2. 10 CPI3.

4.4.1.3 Country (Character Sets)Figure 4–11: Font CountryFONT:0. Exit1. Style2. CPI3. Country4. Mode5. Horizontal Expansion6. Vertical ExpansionCountr

2. Press the PRG key ([ P r o] is displayed). The LG31 printer will printthe configuration menu.3. Press the (3) key. The LG31 will print a list of nat

4.4.1.5 Horizontal ExpansionFigure 4–13: Font Horizontal ExpansionFONT:0. Exit1. Style2. CPI3. Country4. Mode5. Horizontal Expansion6. Vertical Expans

4–1 Serial Interface Connector . . . ...4–24–2 Location of the Serial Interface Connector ...4–34–3 Configuration Menu ...

4.4.1.6 Vertical ExpansionFigure 4–14: Font Vertical ExpansionFONT:0. Exit1. Style2. CPI3. Country4. Mode5. Horizontal Expansion6. Vertical ExpansionV

4.4.2 LPIFigure 4–15: Lines Per InchLPI -0. Exit1. 6 lpi2. 8 lpi3. 10 lpiLPI - 6 lpiPress the number ‘0’ to return to normal operation.To continue mod

Figure 4–16: Forms ControlForm Control:0. Exit1. Form Feed2. Line Feed (forward)3. Line Feed (reverse)4. Set Top of Form5. Set Top Margin6. Set Bottom

10. Press and hold the (2) key until you reach the bottom of the form (66for 11-inch paper).11. Press the (7) key to set the bottom of the form and to

5. Press the (2) key until the display reads the column number youwant for a left margin.6. Press the (3) key to set the left margin.7. Press the (7)

Figure 4–19: Vertical Tab Stops9keep)Vertical Tab Stops:Cannot set vertical tabs from the menu0. ExitVertical Tab Stops:Press the number ‘0’ to return

Figure 4–20: Printer Control Straps — Factory SettingPrinter Control Straps:0. Exit1. Printer Straps A2. Printer Straps BStraps:0. Exit1. Strap ‘IN’2.

4.5 Function ModeIn the function mode (see Figure 4–21), you can perform the following:• Printer initialization• Forms setup• Print adjustment• Forms

Figure 4–21: Function ModeTHE PRESENT CONFIGURATION IS: (44A511526 SY - 44A511527 IM)FIRMWARE REVISION LEVEL V2.31. Font:Style - 44A511527 Dataprocess

Table 4–3: Initialization ProcedureAction Results DisplayPress (3) ONLINEPrinter set to off-line. [ O F L]Press (9) FCT Printer enters Mode Selectionm

Tables1–1 LG31 Printed Circuit Boards . ...1–51–2 LG31 Printer Specifications . . ...1–61–3 Resident Fonts...

Table 4–4: Lock-Up Printer Initialization ProcedureAction ResultsTurn printer power OFF. Printer disabled.Slide the printer initialization switch toit

the paper. Pressing the bottom of form key (7) FONT will cause the formparameters entered to be saved, move the paper to align the top of thenext form

4.5.2.1 Top Of Form (TOF)Figure 4–22: Key (4) Form Size Setup ExampleSample FormBottomMarginEndof FormTopof FormTopMargin1 in1 in066057006000128 i

2. Press key (4) LINE FEED to set top of form. Display is [000].3. One-inch top margin is desired at 6 LPI. Press and hold (2) FORMFEED, count six lin

4.5.3 Print AdjustmentThe Print Adjustment procedure shown in Table 4-6 is used to review theprint by observing several print patterns that may be sel

Table 4–6 (Cont.): Print Review ProcedureAction Results Display(5) CPI LPI Prints horizontal timing patterns [.H E P](6) PAPERPrints vertical timing p

Table 4–7: Forms Adjustment ProcedureAction Results DisplayPress (3) ON LINE Printer goes off-line. [ O F L]Press (9) FCT Printer enters Mode Selectio

4.5.5 Margin SetupThe Margin Setupprocedure shown in Table 4-8 is used to set and displayleft and right margins.Table 4–8: Margin Setup ProcedureActio

The following example explains how to select and set desired margins.NOTEA counter is used to indicate the current column numbercounted from the left

The left margin specifies the first printable position on a line, while theright margin specifies the last printable position on a line. The activepositi