Digital Equipment LA600 MultiPrinter Field Service Manual Download Page 15 | Manualshive

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Continuous Form Input

Continuous Form Output

Manual Input

Paper Sensor

Automatic Sheet
Feeding

Cut Sheet Ouput

Paper Run
Sensor

Paper In
Sensor

Print Head

Stacker Exit
Rollers

Stacker

Park Position

Manual

Form Feed
Rollers 1

Platen Assy

Form Feed
Rollers 2

Tractor Exit
Rollers

Tear Off

Specific Printer Functions

4-11

4-12

4.5

Paper Path

4.7.1 Paper Transportation Principle

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Summary of Contents for LA600 MultiPrinter

Page 1: ...ent by Digital Equipment Corporation Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document Copyright by Digital Equipment Corporation 1998 All rights...

Page 2: ...rint Head Tilting Principle and related Print Speed 4 6 4 2 1 Print Speed in DATA DRAFT Mode 4 7 4 4 2 Print Speed in NLQ Mode 4 7 4 4 3 Print Speed in LQ Mode 1 4 8 4 4 4 Print Speed in LQ Mode 2 4 8...

Page 3: ...rriage 7 30 Protection Schield 7 32 Ribbon Gear 7 34 Stepper Motor 7 5 DEG Palten Gap Control 7 36 Stepper Motor 1 8 DEG Vertical Paper Transport 7 38 Tractor Gear 7 40 Stacker Elements 7 42 Paper Sen...

Page 4: ...t for this product 5 Printer Subassemblies This chapter comprises diagrams depicturing the printer s subassemlies the internal wiring scheme and arrangement of the collective connectors 6 Built In Dia...

Page 5: ...rous S All replacement and cleaning procedures should be performed with the printer switched OFF and the mains connector disconnected S Only recommended parts should be used to replace defective parts...

Page 6: ...g platen cleaner S CP 09 Refer to Chapter 4 to check a necessary exchange of platen or 1 pick up rollers ASF Paper insertion Remove ASF cassette 1 problems Clean pick up rollers using platen cleaner S...

Page 7: ...lowing PM1 identifies the micro program and the number following PM3 identifies the character set 1 Power the printer ON and remove the top cover 2 Remove the ribbon cassette 3 Thoroughly brush and va...

Page 8: ...int command is given by the host to an empty ASF cassette The printer enters the STOP mode During normal operation the following error messages may occur also LOAD TRACTOR Displayed when the host send...

Page 9: ...electronic fault Encoder strip missing Horizontal drive fault BUFFER Handshake Check CTR CTS or OVERFLOW protocol error XON XOFF protocol Repeat data transfer FORMAT ERROR Protocol error Check protoco...

Page 10: ...an be called up via the operator panel and is performed after installation of a Personality Module with a new firmware revision AGC is automatically performed after changing from online offline online...

Page 11: ...ted from any value of the print gap S The print head carriage is positioned against the mechanical stop S AGC can be started from any value of the print gap S As soon as the mechanical stop has been r...

Page 12: ...Print Speed S The print gap is set according to the value commanded by the PCC command Inclination Position for LQ mode no print position Inclination Position for DATA or NLQ mode S The nose of the p...

Page 13: ...s per character 3 each other needle activated Number of needles per character 12 each 3rd needle activated M needle activated F needle not activated M needle activated F needle not activated 1 2 3 4 5...

Page 14: ...dge of the form by means of the Paper In feature S Continuous Forms Processing S Paper In Detection Detection of the upper edge of the form by means of the Paper In feature S Paper Movement Detection...

Page 15: ...eeding Cut Sheet Ouput Paper Run Sensor Paper In Sensor Print Head Stacker Exit Rollers Stacker Park Position Manual Form Feed Rollers 1 Platen Assy Form Feed Rollers 2 Tractor Exit Rollers Tear Off S...

Page 16: ...ronic Subassembly B Top Cover 1 Ribbon Cassette 2 Printer Engine including Electronic Subassembly 3 Front Cover 4 Manual Front Insertion Guide 5 Output Stacker 6 Personality Module likewise named PM 7...

Page 17: ...Printer Subassemblies 5 3 5 4 5 3 Internal Wiring Scheme...

Page 18: ...is not listed contact your service office Each time the printer is switched ON the display indicates TEST while the internal self tests are run If the test is completed successfully READY 4 ELQ will b...

Page 19: ...peration the following error messages may occur for further operator panel messages please refer to section 3 3 Status and Error Messages Display That means Cause Action AGC ERROR AGC ADJUST Distance...

Page 20: ...1 up to 3 is selected 6 4 Operation related Problems S Paper is not positioned at perforation for tear off feature S Select the correct form length using the Set up feature S Reset top of form by perf...

Page 21: ...ove the obstruction S Print lines overlap S Examine the paper pathway for dirt or other obstructions that may prevent the platen from rotating freely Remove the obstruction S On preprinted forms the p...

Page 22: ...athway Remove any obstructions Check that all packing material is removed S Examine the carriage area for obstructions Remove where necessary 6 7 Print Tests There are three different print tests as w...

Page 23: ...proper handling of the spare parts and subunits of the printer For detailed order information and description of the spare parts please refer to the Spare Part Catalog 5112 991 1030x Note All removal...

Page 24: ...No 5112 212 5500x DEC P N FD W03RD 01 REMOVAL Disconnect mains cable Remove the manual front insertion 4 Y M Remove the front cover 3 resp the ASF cassette s out of the mounting slots Y M Swing the t...

Page 25: ...igure 2 Y M Remove the safety angle by removing srew 8 Note For protection of the operator panel please use a part of the packaging material of the new printer engine as support Y M Shift the entire E...

Page 26: ...ct mains cable Remove all encasing parts see Part Housing Loosen the two screws 1 securing the PSU 40A Y M Lift the complete Power Supply Unit PSU using a screw driver Y M Disconnect plug 3 Y M Remove...

Page 27: ...01 REMOVAL Disconnect mains cable Remove all encasing parts see Part Housing Y M Loosen the two screws 1 and remove screw 2 Y M Remove the DEV 40 a while removing DEV 40 3 is automatically disconnecte...

Page 28: ...ll encasing parts see Part Housing Remove DEV 40 see Part DEV 40 Y M Remove memory card if plugged in 1 Y M Remove the Personality Module after loosening the two lockscrews 2 Y M Disconnect plug 3 fro...

Page 29: ...Remove DEV 40 see Part DEV 40AE Y M Remove the Personality Module after loosening the two lockscrews 1 Y M Disconnect plug 2 from CU 40 and remove CU 40 Y M Remove the EEPROM CU 40X 3 and plug it int...

Page 30: ...able Remove all encasing parts see Part Housing Remove DEV 40 see Part DEV 40 Remove CU 40 see Part CU 40 Y M Exchange the EEPROM CU 40X 4 Note Pay attention that EEPROM 4 is in correctly position IC...

Page 31: ...all encasing parts see Part Housing Y M Disconnect the Operator Panel cable 1 Y M Loosen the screw 2 located at the bottom of the Operating Panel Y M Remove the Operator Panel REASSEMBLING Execute th...

Page 32: ...112 292 3882x DEC P N FD W02H3 01 REMOVAL Disconnect mains cable Remove all encasing parts see Part Housing Y M Loosen the two screws 1 Remove PSU 40x see Part PSU 40 Y M Remove the power switch REASS...

Page 33: ...duction foam 1 from the cable channel Y M Clip the plastic support 2 from the print head carriage by first releasing clamps 3 Y M Disconnect the wire to wire connection 4 of the H Encoder Y M Disconne...

Page 34: ...see Part Housing Y M Remove the two screws 1 Y M Remove the encoder strip 2 Y M Move the carriage to the centre position REASSEMBLING Execute the REMOVAL procedure in reverse sequence Caution Pay atte...

Page 35: ...Housing Remove Encoder Strip 1 see Part Encoder Strip Remove operator panel but leave the interface cable connected see Part Operator Panel Y M Remove srew 2 on both sides of the upper guide rail 3 Y...

Page 36: ...the left and right side the screws 6 and remove the mounting plate 7 Y M Move the carriage to the cutout 8 Y M Remove the two screws 9 from the carriage Y M Remove the screw 10 and the cable clamp fro...

Page 37: ...t 1 from the drive wheel of the horizontal motor by pressing the belt tension element 2 which is located at the left side of the engine upwards Y M Pull off the belt from the wheel Y M Disconnect the...

Page 38: ...able Print Head Remove the horizontal motor see Part H Motor DEV 40 Remove the tractor gear see Part Tractor Gear Y M Remove the two screws 1 and the upper rail 2 Y M Pull the lever 3 from the lock pi...

Page 39: ...nnect mains cable Open top cover Remove Ink Ribbon Remove Platen 4 Y M Disconnect protection shield 1 by loosening the two screws 2 This can easily be done by inserting of a torx screwdriver of at min...

Page 40: ...Part Housing Remove DEV 40 see Part DEV 40 Y M Locate the Ribbon Gear 1 Y M Loosen the cable 2 from the cable guide 3 Y M Loosen the spring 4 and remove lever 5 Y M Disconnect the 2 pin motor cable 2...

Page 41: ...Remove DEV 40A see Part DEV 40 Y M Disconnect the four pin motor cables from the motors plug Y M Remove the two screws 1 fixation of the stepper motor Warning Do not loosen the screw 2 This is a fact...

Page 42: ...Y M Remove the motor cable guide from the DEV 40 Y M Remove the four pin motor cable 1 from the cable guide Y M Remove the two screws 2 of the vertical drive motor Y M Turn the motor anti clockwise a...

Page 43: ...tractor By moving the carriage to the uppermost right position the paper path will be changed an audible click Y M The axle 1 must be turned to the position as shown in Detail B by turning on the mini...

Page 44: ...rt Housing Remove DEV 40 see Part DEV 40 Y M Loosen the two screws 1 securing the Power ON OFF switch Y M Remove the two screws 2 which secure the stacker elements plate Y M Remove the circlip 3 which...

Page 45: ...5x DEC P N FD W04JJ 01 REMOVAL Disconnect mains cable Remove all encasing parts see Part Housing Y M Remove circlip 1 and bearing 2 The axle 3 falls down Y M Remove the Paper Sensor 4 Y M Disconnect t...

Page 46: ...th of printhead cable Y M Loosen the two screws 2 and remove the metal sheet coner Y M Snap out the springs 3 using a knife Y M Remove the pressure roller Y M Grease the bearings of the pressure rolle...

Page 47: ...EV 40 see Part DEV 40 Y M Locate the right side of the form feed shaft for exchanging Y M Remove both minipitch belts 1 Y M Pull the belt pulley 2 from the wheel shaft for exchanging Y M If the upper...

Page 48: ...t mains cable Remove all encasing parts see Part Housing Remove DEV 40 see Part DEV 40 Y M Locate the right side of the form feed shaft for exchanging Y M Remove both minipitch belts 1 Y M Pull the be...

Page 49: ...ker elements see Part Stacker Elements Y M Locate the gearwheel 1 remove the circlip 2 and the washer 3 remove gearwheel 1 and bearing 4 from the wheel shaft Y M Remove circlip 5 from the wheel shaft...

Page 50: ...locking tabs on the bearing 3 and remove it Y M For removal slide the entire tractor kit first to the left and then remove it by sliding out the right Reassembly Execute the REMOVAL procedure in reve...

Page 51: ...print head Y M Disengage the drive belt 1 from the drive wheel horizontal motor by pressing the belt tension elements on pos 2 Y M Slide the drive belt out of the drive wheel Y M Remove the drive belt...

Page 52: ...re 3 Lever 2 upper paper release onto lever 1 paper pressure lever and lever 3 lower paper release onto lever 2 Observe that the little plug of lever 2 is fitted in the hole provided in lever 3 Y M Ex...

Page 53: ...Part Housing Y M Remove lever 1 from D axis the plastic snap in will be destroyed Y M Remove the torsion spring 2 REASSEMBLING Y M Insert the new spring and grease the hole in the engine plate and the...

Page 54: ...Spring Print Head Shifter 12 Spring 0 3x4 5x20 ST Ribbon Gear 17 Spring Paper Stacker Elements 13 Spring Carriage Axis 19 Spring Paper Transport 14 Spring Carriage Bearing 26 Torsion Spring D Shaped A...

Page 55: ...er Part No 5112 212 7043x DEC P N ____________ REMOVAL Disconnect mains cable Remove all encasing parts see Part Housing Y M Remove the noise reduction foam 1 from the cable channel REASSEMBLING Execu...

Page 56: ...f the broken shaft 7 as well as the second non broken shaft Use a side nippers to do so The remaining rest of both shafts must not exceed 0 7 mm Y M Remove the female screw 13 and the washer 12 from t...

Page 57: ...eps In terms of preventive actions for keeping the printer running following operation for the life time of wearing parts is given Ribbon Cartridge 16 Mio characters draft quality Print Head 350 000 p...

Page 58: ...ibbon cassette 3 Y M Switch the printer ON and insert the ink ribbon cassette 3 Y M Disconnect the print head cable 4 Y M Using the supplied tool 7 loosen the two captive screws 6 retaining the print...

Page 59: ...on the print head to the very right Y M Release the plastic platen clamp 1 on the left platen mounting Y M Move platen 2 approximately 10 mm to the left lift the left end of the platen free of its mou...

Page 60: ...into its mounting and fit the small Y M Remove the ASF cassette 30 from the printer by drawing back the release lever 63 releasing the mounting lugs Y M Remove the small access cover 64 by squeezing...

Page 61: ...2 01 7 20 Encoder Strip 2 5112 292 7454x FD W041701 7 22 Kit Lubrication Felt 5112 212 5589x 29 31804 01 7 24 Item Part No DEC P N Page Print H Encoder 5112 292 4310x FD W0290 01 7 26 H Motor 5112 292...

Page 62: ...Item Part No DEC P N Page 9 3 9 4 9 2 List of Wearing Parts Item Part No DEC P N Print Head DH3024 2 5112 292 6652x FD 52920 01 8 2 Platen Assy 5112 292 3801x LA60X PN 8 4 Pick up Rolls ASF A and B 5...

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