LA600 MultiPrinter Field Service Manual The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document. Copyright © by Digital Equipment Corporation 1994. All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authorization from the publisher. Pub. No.
LA600 Field Service Manual LA600 Field Service Manual 4. Wearing Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Platen Assy A1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 ASF Pick-up Rollers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 Table of Contents 1. Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 5. List of Spares and Repairs . . . .
LA600 Field Service Manual 1. Safety Precautions 1. Some of the maintenance procedures described in this section require that the printers top housing is removed. This exposes the internal working parts of the printer. During operating some of these parts are potentially dangerous. 2. All replacement and cleaning procedures should be performed with the printer switched OFF and the mains connector disconnected. 3. Only recommended parts should be used to replace defective parts.
LA600 Field Service Manual 2. Preventive Actions for Keeping the Printer Running The following points should be additionally checked on a service call. Item Platen *) Paper input transport rollers ASF *) *) Problem Remedial Action Paper feeding problems Remove platen and clean surface thoroughly using platen cleaner S/CP 09. Paper feeding problems Disconnect mains cable, remove the ribbon, and remove housing (see chapter 3, Part: Housing).
LA600 Field Service Manual 3. LA600 Field Service Manual Procedures for Removal and Reassembly Part: Housing Part No: 5112 292 38200 DEC P/N: FD-W03RF-01 This chapter describes the removal procedures which are necessary for proper handling of the spare parts and subunits of the printer. REMOVAL Note: Disconnect mains cable All removal procedures consists of several steps indicated with a: to show preparation and ⇒ to indicate the main removal steps.
LA600 Field Service Manual LA600 Field Service Manual Part: Printer Engine LA600 Part No: 5112 292 62901 DEC P/N: 29 31790-01.
LA600 Field Service Manual LA600 Field Service Manual Part: PSU-40A Assy Part No: 5112 292 38110 DEC P/N: FD-W02BY-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) Loosen the two screws (A) securing the PSU-40A assy ⇒ Lift the complete Power Supply Unit (PSU), using a screwdriver ⇒ Disconnect plug (C) ⇒ Remove clamp (D) and disconnect plug (B) REASSEMBLING Execute the REMOVAL procedure in reverse sequence Figure 1 ATTENTION: Do not touch the PSU board within min.
LA600 Field Service Manual LA600 Field Service Manual Part: DEV-40 LA600 Assy Part No: 5112 292 62921 DEC P/N: 29-31791-01 A01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) ⇒ Loosen the two screws (A) and remove screw (B) ⇒ Remove the DEV-40 LA600 Assy a) while removing, DEV-40 LA600 assy (K) is automatically disconnected from CU-40 LA600 assy (C) b) disconnect all plug connections from the DEV-board: - plug (D) - plug (E) - plug (F) Reassembly Execute the REMOVAL proc
LA600 Field Service Manual LA600 Field Service Manual Part: CU-40 LA600 Assy Part No: 5112 292 62991 DEC P/N: 29-31792-01.
LA600 Field Service Manual LA600 Field Service Manual Part: EEPROM CU-40-00 Part No: 5112 208 07590 DEC P/N: 29-31802-01.
LA600 Field Service Manual LA600 Field Service Manual Part: Operator Panel Part No: 5112 292 38150 DEC P/N: FD-W00CU-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) ⇒ Disconnect Operating Panel cable (A) ⇒ Loosen the screw (B) located at the bottom of the Operating Panel ⇒ Remove the Operator Panel Assy REASSEMBLING Execute the Removal procedure in reverse sequence Note: Digital Equipment Corporation Page 3-13 Remove the protection foil (C) from the Operator Pa
LA600 Field Service Manual LA600 Field Service Manual Part: Power ON/OFF Switch Assy Part No: 5112 292 38820 DEC P/N: FD-W02B3-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) Remove PSU-40A Assy (see Part: PSU-40A Assy) ⇒ Loosen the two screws (A) ⇒ Remove the power ON/OFF Switch Assy REASSEMBLING Execute the REMOVAL procedure in reverse sequence.
LA600 Field Service Manual LA600 Field Service Manual Part: Cable Print Head Assy Part No: 5112 292 38800 DEC P/N: FD-W02Y2-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) ⇒ a) Disconnect print head cable from the print head b) Remove the noise reduction foam (A) from the cable channel c) Clip the plastic support (B) from the print head carriage, by first releasing clamps (C) d) Disconnect the wire-to-wire connection (D) of the H-Encoder Assy e) Disconnect the colour op
LA600 Field Service Manual LA600 Field Service Manual Part: Encoder Strip Assy Part No: 5112 292 37970 DEC P/N: FD-W0417-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) ⇒ ⇒ Remove the two screws (A) (Detail Y) Remove the encoder strip 40A Assy (B) REASSEMBLING a) Move the carriage to the centre position b) Execute the REMOVAL procedure in reverse sequence Caution: Pay attention, that the Encoder Strip Assy is mounted in the correct position by (Detail Z) and observe t
LA600 Field Service Manual LA600 Field Service Manual Part: Kit Lubrication Felt Part No: 5112 270 04541 DEC P/N: 29-31804-01. A01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) Remove Encoder Strip Assy (see Part: Encoder Strip Assy) Remove operator panel, but leave the interface cable connected (see Part: Operator Panel) ⇒ a) Remove the two springs (C) b) Remove the upper guide rail (D) ⇒ Exchange the lubrication felt (E).
LA600 Field Service Manual LA600 Field Service Manual Part: Print Head H-Encoder 40A Part No: 5112 292 43100 DEC P/N: FD-W0290-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) Remove encoder strip Assy (see Part: Encoder Strip Assy) Remove the noise reduction foam (see Part: Cable Print Head Assy) ⇒ Remove the upper screws (A) ⇒ Loosen the two screws (B) and remove the mounting plate and the right side cover plate ⇒ Move the Carriage Assy to the cutout (D) ⇒ Remove th
LA600 Field Service Manual LA600 Field Service Manual Part: Horizontal Motor 40A Part No: 5112 292 37910 DEC P/N: FD-W0396-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) Remove DEV-40 Assy (see Part: DEV-40 LA600 Assy) ⇒ a) Disengage the drive belt (A) from the drive wheel of the horizontal motor by pressing the belt tension element (B), which is located at the left side of the engine, upwards b) Pull off the belt from the wheel c) Disconnect the two pin motor cables (
LA600 Field Service Manual LA600 Field Service Manual Part: Carriage 40A Assy Part No: 5112 292 40940 DEC P/N: FD-W04JL-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) Remove DEV-40 Assy (see Part: DEV-40 LA600 Assy) Remove the encoder strip Assy (see Part Encoder Strip Assy) Remove operator panel, but leave the interface cable connected (see Part: Operator Panel) Remove the cable print head Assy from the print head carriage (see Part: Cable Print Head Assy) ⇒ a) Remove
LA600 Field Service Manual LA600 Field Service Manual Part: Protection Shield Part No: 5112 292 38390 DEC P/N: FD-W041W-01 REMOVAL Disconnect mains cable Open top cover Remove Ink Ribbon Remove Platen ⇒ Dismount protection shield (B) by loosening the two screws (A).
LA600 Field Service Manual LA600 Field Service Manual Part: Ribbon Gear 40B Assy Part No: 5112 292 63840 DEC P/N: FD-W045W-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) Remove DEV-40 Assy (see Part: DEV-40 LA600 Assy) ⇒ ⇒ Locate the Ribbon Gear 40B Assy (A) a) Loosen the cable (F) from the cable guide b) Loosen the spring (B), remove lever (C) from (D) c) Disconnect the 2 pin motor cable from the motor connector (F) d) Push the lock tab (E) and remove the Ribbon Gear
LA600 Field Service Manual LA600 Field Service Manual Part: Rep. Kit Ribbon Gear Part No: 5112 292 41091 DEC P/N: t. b. f. REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) Remove DEV-40A Assy (see Part: DEV-40 LA600 Assy) ⇒ ⇒ Locate the Ribbon Gear 40B Assy (A) a) b) c) d) Loosen the cable (F) from the cable guide Loosen the spring (B), remove lever (C) from (D) Push the lock tab (E) and remove the ribbon gear 40A Assy Open the gear box cover by loosening the 3 clips.
LA600 Field Service Manual LA600 Field Service Manual Part: Stepping Motor 7.5 DEG (Platen gap control) Part No: 5112 209 24460 DEC P/N: FD-W0394-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) Remove DEV-40A Assy (see Part: DEV-40 LA600 Assy) ⇒ Disconnect the four pin motor cables from the motors plug ⇒ Remove the two screws (B) fixation of the stepper motor Warning: Do not loosen the screw (A).
LA600 Field Service Manual LA600 Field Service Manual Part: Stepping Motor 1.8 DEG (Vertical Paper Transport) Part No: 5112 292 62411 DEC P/N: 29-31798-01.
LA600 Field Service Manual LA600 Field Service Manual Part: Tractor Gear 40A Part No: 5112 292 38030 DEC P/N: FD-W045N-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) Remove DEV-40 Assy (see Part: DEV-40 LA600 Assy) ⇒ a) The paper path for output must be set to tractor.
LA600 Field Service Manual LA600 Field Service Manual Part: Stacker Elements 40B Assy Part No: 5112 292 40990 DEC P/N: FD-W04KK-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) Remove DEV-40 Assy (see Part: DEV-40 LA600 Assy) ⇒ Loosen the two screws (A) securing the Power ON/OFF switch and put it away ⇒ ⇒ Remove the two screws (C) which secure the stacker elements plate a) Remove the circlip (D) which secures the bearing (E) b) Slide the bearing (E) to the left and rem
LA600 Field Service Manual LA600 Field Service Manual Part: Print Head LA600 Part No: 5112 292 62761 DEC P/N: 29-31807-01.
LA600 Field Service Manual LA600 Field Service Manual Installing the new print head (5) Ensure that the printer is switched OFF. For print head installation, the carriage should be aligned with the cut-out on the paper guide plate (green insert). (Same position as for Removal procedure). ⇒ 1 3 4 Hold the print head (5) in its mounting position and press it against its stop in direction of the platen. The two noses (9) of the adjustment guide (8) support this procedure.
LA600 Field Service Manual LA600 Field Service Manual Part: Paper Run/In Detector Assy Part No: 5112 292 38050 1 3 4 DEC P/N: FD-W04JJ-01 REMOVAL 2 Disconnect mains cable Remove all encasing parts (see Part: Housing) ⇒ ⇒ 5 Remove circlip (A) and bearing (B).
LA600 Field Service Manual LA600 Field Service Manual Part: Kit Pressure Roll FF1 Part No: 5112 292 41080 DEC P/N: 29-31801-01.
LA600 Field Service Manual LA600 Field Service Manual Part: Kit Vertical Transport 40A Part No: 5112 292 38450 DEC P/N: FD-W02M6-01 Part: Minipitch Belt Stepper Part No: 5112 200 08780 DEC P/N: FD-W032Y-01 Part: Minipitch Belt Form Feed Part No: 5112 200 08790 DEC P/N: FD-W0330-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) Remove DEV-40 Assy (see Part: DEV-40 LA600 Assy) ⇒ a) b) c) d) Locate the right side of the form feed shaft for exchanging Remove both minip
LA600 Field Service Manual LA600 Field Service Manual Part: Kit Belt Pulley 40A Part No: 5112 292 49210 DEC P/N: FD-W05RM-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) Remove DEV-40 Assy (see Part: DEV-40 LA600 Assy) ⇒ a) Locate the right side of the form feed shaft for exchanging b) Remove both minipitch belts (B) c) Pull the belt pulley (C) from the wheel shaft to be exchanged REASSEMBLING Execute the REMOVAL procedure in reverse sequence Digital Equipment Corpora
LA600 Field Service Manual LA600 Field Service Manual Part: Kit Cont.
LA600 Field Service Manual LA600 Field Service Manual Part: Kit Tractor 40A Part No: 5112 292 38470 DEC P/N: FD-W02M8-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) Snap out the paper supports (C) ⇒ a) Locate the bearing (A) and (B) on the left side of the printer b) Press the two locking tabs on the bearing (A) and remove it c) Press the three locking tabs on the bearing (B) and remove it d) For removal slide the entire tractor kit first to the left and then remove it
LA600 Field Service Manual LA600 Field Service Manual Part: Kit Belt Tension 40A Part No: 5112 292 38480 DEC P/N: FD-W02M5-01 REMOVAL Disconnect mains cable Remove all encasing parts (see Part: Housing) Remove the print head ⇒ a) Disengage the drive belt (A) from the drive wheel horizontal motor by pressing the belt tension elements on pos.
LA600 Field Service Manual LA600 Field Service Manual Part: Kit ASF Lever Part No: 5112 292 22480 DEC P/N: FD-W04B7-01 REMOVAL ⇒ Remove the AFS-Cassette from the printer and remove any paper loaded, and the paper support (if mounted). ⇒ Remove the side cover of the ASF Cassette by releasing of four snaplocks (No. 1 - 4 in figure 1). Use a flat screw driver to do so and keep the sequence of figure 1. ⇒ Remove the circlip (No. 4 in figure 2) of the lever shaft.
LA600 Field Service Manual LA600 Field Service Manual Part: Kit Torsion Spring D-Axis Part No: 5112 292 41070 DEC P/N: 29-31803-01.
LA600 Field Service Manual LA600 Field Service Manual Part: Kit Screws and Springs Part No: 5112 292 38490 DEC P/N: FD-W05RK-01 Location of Screws and Springs 11 12 13 14 15 16 17 19 26 Digital Equipment Corporation Page 3-65 Spring 0.6x4x23 ST F. Paper Run Spring 0.3x4.
LA600 Field Service Manual 18 20 21 22 23 24 25 Spring Tractor Exit Torsion Spring Tractor Gear Spring Manual Front Insertion Cable clip Springs for Print Head Fixation Holder right/left (green) Bearing Platen (green) Digital Equipment Corporation Page 3-67 Page 3-68 Digital Equipment Corporation
LA600 Field Service Manual 4 LA600 Field Service Manual Part: Platen Assy Part No: 5112 292 38010 Wearing Parts DEC P/N: LA60X-PN This chapter describes the removal procedures which are necessary for proper handling of the wearing parts of the printer. To Remove the Platen (2) Note: All removal procedures consists of several steps indicated with a: to show preparation and ⇒ to indicate the main removal steps. Switch the printer OFF. Lift and remove the output stacker. Lift and remove the top cover.
LA600 Field Service Manual LA600 Field Service Manual To install the Platen Assy (2) Ensure that the printer is switched OFF. ⇒ Place platen (2) in the vacant space between print head and metal bar. ⇒ 1 Move print head from its right hand position into the centre. ⇒ ⇒ 2 Fit the gear wheel end of the platen into the right hand side mounting. Be careful not to damage the gear wheel.
LA600 Field Service Manual LA600 Field Service Manual Part: ASF Pick-up Rollers Part No: 5112 292 41000 DEC P/N: LA60X-PR To Remove the ASF Pick-up Rollers (62) ⇒ 1 Remove the ASF cassette (30) from the printer by drawing back the release lever (63), releasing the mounting lugs. ⇒ Remove the small access cover (64) by squeezing it together as shown. ⇒ ⇒ 2 Digital Equipment Corporation Page 4-5 Page 4-6 Pull back the retainers (66) as shown and lift up the bar (65).
LA600 Field Service Manual LA600 Field Service Manual To install the Pick-up Rollers (62) ⇒ Slide the new pick-up rollers (62) onto the bar (65). ⇒ ⇒ Digital Equipment Corporation Page 4-7 Page 4-8 Insert the free end of the bar into its mounting, ensuring that each roller flange (67) is positioned so that they mate with the slots (68) in the paper sleeves. Carefully snap the bar (65) into its mounting and fit the small access cover (64).
LA600 Field Service Manual Digital Equipment Corporation Page 4-9 Page 4-10 Digital Equipment Corporation
LA600 Field Service Manual 5 LA600 Field Service Manual List of Spares and Repairs Item Item 1) Digital Part No. Type Kit Lubrication Felt 5112 270 04541 29-31804-01.A01 S S Part No. Digital Part No. Kit Press Roll FF1 5112 292 41080 29-31801-01.A01 Housing 5112 292 38200 FD-W03RF-01 S Top Cover 40A LA600 5112 270 04861 29-31800-01.
