Digital Equipment Corporation LA310 Specifications

LA310 MultiPrinterService Guidedigital equipment corporationmaynard, massachusettsOrder Number: ER-LA310-SG.001

LA 310 - Service Manual1-3

1-41.2 Recommended ToolsYou are recommended to use the following tools:Table 1-1 Recommended toolsPart Number Description29-26106-00 50 Hz Terminal T

LA 310 - Service Manual2-12INSTALLATION2.1 Preparation2.1.1 Precautions and SuggestionsFor correct functioning of the printer, the following precautio

2-22.2 InstallationNote:You should refer to the LA 310 Printer Installation and User's Guide to get more detailedinformation for the installation

LA 310 - Service Manual2-36. Make sure that the label on the back of the printer quotes the same voltage as thatavailable from the wall socket.7. Con

2-4Fig 2.3 Installing the Cartridge9. Do not connect the data cable to the host system.10. Run the print test. The print test is activated from a prin

LA 310 - Service Manual2-52.3 Paper Loading2.3.1 PaperThe printer can handle a wide range of paper types. The printable area will depend onthe type of

2-6The following table contains the dimensions and weight of the paper which can be usedon your printerPAPER DIMENSIONS WEIGHT COPIES/COMPOSITIONSingl

LA 310 - Service Manual2-72.3.2 Printable AreaThe maximum printable area on the page is illustrated in the followings diagrams. Itwill vary according

2-82.3.3 Paper Handling DevicesUse the following devices and manual controls on your printer to load and feed paper:- Paper guides on the rear paper s

October 1992The information in this document is subject to change without notice and should beconstrued as a commitment by Digital Equipment Corporati

LA 310 - Service Manual2-9Paper Feed KnobWith the printer in PAUSE state, use the paper feed knob to advance/retract paper andto remove jammed paper.F

2-10Internal Sprocket ( Push Tractor )This device feeds single or multicopy continuous stationery. An optional externalsprocket ( Pull Tractor ) can b

LA 310 - Service Manual2-11Print Head Distance LeverUse this lever to vary the distance between the print head and the platen. The distancewill depend

2-12The following table illustrates the relation-ship between the lever position and thenumber of copies.LEVER NUMBER OF COPIES THICKNESS max. (mm)POS

LA 310 - Service Manual2-13Bail BarThe bail bar holds the paper against the platen as it is fed through the printer.When loading any paper, check that

2-14RulerThe ruler, embossed on the printer bodywork between the platen and the push sprocket,simplifies horizontal alignment of the paper and the gui

LA 310 - Service Manual3-13SET-UPWhen you enter Set-up mode, the Set-up Directory menu is displayed. From the Set-upDirectory menu, you can enter the

3-23.1 Set-up Mode Switches and IndicatorsThere are five buttons on the operator control panel that perform functions in Set-upmode.Normal mode Set-up

LA 310 - Service Manual3-33.1.1 Entering Set-up ModeDigital recommends that you enter Set-up mode in tractor-feeding mode, and not cutsheet mode.NOTE:

3-43.1.2 Printing the Printer's Current ConfigurationTo examine the printer's current configuration, you can print all current settings.To p

FCC NOTICEThis equipment generates and uses radio frequency energy and if not installed and usedproperly, that is, in strict accordance with the manuf

LA 310 - Service Manual3-53.1.3 Changing the Printer's ConfigurationAt each menu or submenu beyond the Set-up menu, the item that was selected pr

3-6Using ← and → , move the cursor to GENERAL.Press ↓ to select the General menu. The entry GENERAL is underlined, and thefirst part of the General me

LA 310 - Service Manual3-75. Press → to move to the error beep setting, and press ↓ to select it. The printerunderlines ERROR BEEP and displays the er

3-83.1.4 Saving New Values and Exiting Set-up ModePressing the Set-up switch once while in Set-up mode stores your set-up changes in theprinter's

LA 310 - Service Manual3-9All indicators (except the Fault indicator) flash simultaneously.5. Use ← or → to move the cursor between the EPSON FX-1050

LA 310 - Service Manual4-14TESTS & DIAGNOSTICS4.1 T & D SummaryTable 4.1 provides the list of modes with the related front panel buttons that

4-24.2 Power up diagnosticSelf test operations to check internal logic are performed automatically at power-up.Detected failures cause the Fault light

LA 310 - Service Manual4-3The adjustment setting can be changed by pressing the LF switch which causes the nextnumber to be printed.Pressing the FF bu

4-44.3.4 Carriage Motion TestThe printer is capable of executing a carriage motion self test which causes the printerto execute carriage motions and r

LA 310 - Service Manual4-5adjustment and to save it in NVM. This adjustment is based on the type of paperused.g. Turn the printer off.NOTE: This adjus

COMPLIANCE STATEMENTTO THE CANADIAN DEPARTMENTOF COMMUNICATIONSRadio Act Registration SOR/88-475This digital apparatus does not exceed the Class B lim

4-6Each of the following tests shall not overlap the bottom of the form. When needed, theprinter shall perform a form feed with the Last line printing

LA 310 - Service Manual4-713. Carriage motion exerciser: 2 full cycles ( one cycle is: carriage movement from oneend to the other and back )14. Black

4-84.4.4 Parallel Port Loopback Self TestThe printer is capable of testing the parallel port using the loopback connector as definedin Figure 4.1.The

LA 310 - Service Manual5-15TROUBLESHOOTING5.1 General Rules- Learn about the problem.Talk to the operator who is using the equipment and probably know

5-25.2 Fault IsolationThe following sections list possible fault syntoms and give tests you can make andactions you can take to help to clear those sy

LA 310 - Service Manual5-35.3 Fault Correction5.3.1 Power-Related ProblemsNo indicators on when power is switched on.1. If the printer is functioning

5-4At power on, the carriage does not move.1. Make sure the access cover is seated correctly.2. Logic may not be receiving the access cover switch sig

LA 310 - Service Manual5-5No response to computer commands. READY indicator is on.1. Examine the data cable connections. Reseat the data cable if nece

5-6Single sheet paper does not advance.1. Make sure the tractor/friction feed lever is set to friction feed.2. The paper feed mechanism may be jammed

LA 310 - Service Manual5-76. Replace the Main Board.7. Replace the Mechanical Assembly.Paper is not positioned at perforation for tear-off feature.1.

LA 310 - Service ManualCONTENTS1 Overview 1-11.1 Identification 1-21.2 Recommended Tools 1-42 Installation 2-12.1 Preparation 2-12.1.1 Precautions and

5-85.3.3 Print-Related ProblemsPrint faint or poor quality.1. Is the paper thickness control set correctly for the paper you are using? Adjust ifneces

LA 310 - Service Manual5-94. Replace the Mechanical Assembly.5. Replace the Main Board.Characters printed at a slant, Paper tears, Paper jams.1. Make

5-105.3.4 Ribbon or Carriage-Related ProblemsRibbon Problems.1. Make sure the ribbon is:a. Tensioned correctly.b. Not worn thin or dry.c. Not torn dam

LA 310 - Service Manual6-16REMOVE REPLACE6.1 GeneralThis chapter describes how to remove, replace and adjust major FRUs of the LA 310MultiPrinter.Figu

6-2WARNINGThe procedures described in this chapter involve the removal of the systemcovers and should be performed by trained personnel only.ADVARSEL!

LA 310 - Service Manual6-3ATTENZIONELa procedura descritta in questo capitolo comporta la rimozione delle coper-ture e deve essere eseguita solo da pe

6-46.2 PrintheadRemove and replace the printhead as follows.WARNINGIf the printer was recently used, the printhead may be hot. Be careful whenhandling

LA 310 - Service Manual6-56.2.1 Printhead-Platen Distance Adjustment1. Open the top cover.2. Remove the paper and the ribbon.3. Set the paper thickne

6-66.3 Cover Replacement1. Put the paper selection lever in the friction mode position.2. Pull off the platen knob and the paper selection lever.3. Op

LA 310 - Service Manual6-76.4 Internal Console Replacement1. Remove the top covers as shown in 6.32. Disconnect the control panel board connector from

4.4 Service Tests 4-54.4.1 Printing Self Test 4-54.4.2 LA310 MultiPrinter Service Test 4-54.4.3 Serial Port Loopback Self Test 4-74.4.4 Parallel Port

6-86.5 Mechanical Assembly Replacement1. Remove the covers.2. Remove the operator console3. Lift up the mechanical assembly, and disconnect all connec

LA 310 - Service Manual6-96.6 Printhead Cable Replacement1. Remove the mechanical assembly.2. Remove the printhead and unplug the head connector.3. Re

6-106.7 Main Board Replacement1. Remove the mechanical assembly.2. Unplug the power supply connector (1) from the board.3. Unscrew the three screws (2

LA 310 - Service Manual6-116.8 Power Supply Replacement1. Remove the mechanical assembly.2. Unplug the power supply connector (A) from the board.3. Un

6-126.9 Power Supply Fuse Replacement1. Remove the cover2. Unscrew the screws A, B and C.3. Lift up the cover D and replace the fuse.Note:Fuse rating:

LA 310 - Service Manual7-17CLEANING7.1 IntroductionThe LA 310 has been designed as a low maintenance printer. Most of the maintenanceneeded is determi

LA 310 - Service ManualC Appendix C-1C.1 Set-up Configuration C-1C.1.1 Set-up Directory C-1C.1.2 General Main Menu C-2C.1.3 Protocol Selection Main Me

LA 310 - Service Manual1-11OVERVIEWThe LA 310 is a reliable, low cost, wide carriage, 9 wire dot matrix printer. It is designedto be a personal desk t

1-21.1 IdentificationTable 1-1 A First Look at the PrinterItem Number Item Name1. Rear cover (paper support) with guides2. Paper Selection Lever3. Pl