Integra CROMA24 Manuale Utente

CROMA24COLOR PRINTERSERVICE MANUAL®

10Croma24 Service ManualService Station Cleaning ... 45Linear Encoder Strip

100 Assembly\DisassemblyCroma24 Service Manual13. Once the Idler Pulley Assembly is in position, pinch the belt tohold the Idler Pulley Assembly in pl

Assembly\Disassembly 101ASSEMBLY/DISASSEMBLYCroma24 Service ManualFigure 5-7. Carrier PCB Removal/Installation.4. Unlock the latch on the right end o

102 Assembly\DisassemblyCroma24 Service ManualFailure to use an approved anti-static bag for storageor shipment may cause damage to the Carrier PCBand

Assembly\Disassembly 103ASSEMBLY/DISASSEMBLYCroma24 Service ManualFigure 5-8. Paper and Encoder Sensor Removal.2. To remove the Paper Sensor:a. Unloc

104 Assembly\DisassemblyCroma24 Service Manualthe Encoder clear the ridges which hold it in place. Then pull itstraight out. See Figure 5-8.Install

Assembly\Disassembly 105ASSEMBLY/DISASSEMBLYCroma24 Service Manuale. Turn the Carrier Assembly over and insert the PaperSensor flex cable into the con

106 Assembly\DisassemblyCroma24 Service Manual4. Remove the Trailing Cable from the triangular portion of theStrain Relief.5. Lift up on the short end

Assembly\Disassembly 107ASSEMBLY/DISASSEMBLYCroma24 Service Manual8. Using a #2 Phillips screwdriver, remove the three screws andwashers securing the

108 Assembly\DisassemblyCroma24 Service Manual7. Insert the Strain Relief (with Trailing Cable) onto the CarrierAssembly by sliding it onto the Strain

Assembly\Disassembly 109ASSEMBLY/DISASSEMBLYCroma24 Service ManualFigure 5-12. Carrier Bushing Installation.5. Orient the new Bushing as shown in Fig

11Croma24 Service ManualTable of Contents (cont)Firmware/Software Upgrades...

110 Assembly\DisassemblyCroma24 Service ManualRemove the Service Station, Seals, and WipersFigure 5-13. Service Station, Exploded View.1. Place the M

Assembly\Disassembly 111ASSEMBLY/DISASSEMBLYCroma24 Service Manualfarther to the right might be required to release the left sideof the Service Statio

112 Assembly\DisassemblyCroma24 Service Manual3. Position the Service Station inside the Right Cover and placethe left side of the Service Station int

Assembly\Disassembly 113ASSEMBLY/DISASSEMBLYCroma24 Service Manualprinter.Figure 5-14. C-Bracket Assembly and Platen Removal.

114 Assembly\DisassemblyCroma24 Service Manual7. Remove the C-Bracket Assembly by removing the fourattaching screws. See Figure 5-14.8. Using a #2 Phi

Assembly\Disassembly 115ASSEMBLY/DISASSEMBLYCroma24 Service ManualInstall the Lower Roller Assembly and StepperMotorNOTEEnsure that the stepper motor

116 Assembly\DisassemblyCroma24 Service ManualFigure 5-16. Installing Lower Roller Assembly.3. Lower the Lower Roller Assembly into the Base of the p

Assembly\Disassembly 117ASSEMBLY/DISASSEMBLYCroma24 Service Manual6. Route the Stepper Motor ground strap through the wire accessarea and to the wire

118 Assembly\DisassemblyCroma24 Service Manual6. Disconnect the Trailing Cable from J6 on the MPCB andremove the Trailing Cable Cover Assembly.7. Disc

Assembly\Disassembly 119ASSEMBLY/DISASSEMBLYCroma24 Service Manual17. Disconnect the AC Entry Module from the Power Supply Boardby disconnecting cable

12Croma24 Service ManualTable of Contents (cont)Remove the Lower Roller Assembly and Stepper Motor ... 112Instal

120 Assembly\DisassemblyCroma24 Service ManualInstall the Power Supply and AC Entry Module1. Insert the AC Entry Module by snapping it into the PowerS

Assembly\Disassembly 121ASSEMBLY/DISASSEMBLYCroma24 Service Manual12. Secure the Lower Roller Assembly onto the Platen.13. Attach the C-Bracket Assemb

122 Assembly\DisassemblyCroma24 Service ManualThis Page Intentionally Left Blank

6PARTS LIST123Parts ListThis chapter lists the items and their associated numbers for theparts and assemblies of the Croma24 printers that are field r

124 Parts ListCroma24 Service Manual6-2 3 ACTUATOR, MPCB... 2070306-2 4 MAIN PRINTED CIRCUIT BOARD ... 2070476-2 5 LOWE

Parts List 125PARTS LISTCroma24 Service ManualFigure 6-1. Croma24 Assembly Parts (Platen and Above).

126 Parts ListCroma24 Service ManualFigure 6-2. Croma24 Assembly Parts (Below Platen).

Parts List 127PARTS LISTCroma24 Service ManualFigure 6-3. Carrier Assembly Breakdown.

128 Parts ListCroma24 Service ManualFigure 6-4. C-Bracket Assembly Breakdown.

Parts List 129PARTS LISTCroma24 Service ManualFigure 6-5. Lower Roller Assembly Breakdown.

13Croma24 Service ManualList of IllustrationsFigure PageChapter 1 General DescriptionChapter 2 Theory of Operation2-1. General Block Diagram ...

130 Parts ListCroma24 Service ManualThis Page Intentionally Left Blank

INDEX131IndexAaxis drivecarrier . . 28paper (media) . . 27Bbanding . . 84hardware or software . . 53built in test (BIT) . . 75Ccabling . . 77calibrati

132Croma24 Service ManualSscheduled maintenance . . 43service station . . 45,110servo motor . . 92signal flow . . 77skewing . . 57stepper motor . . 11

14Croma24 Service Manual3-17. Setting Up Tools from Height Gauge Kit ...613-18. Zeroing the Mic

15Croma24 Service Manual5-10. Trailing Cable Assembly Removal/Installation ...1065-11. Carrier Bushing Rem

16Croma24 Service ManualList of TablesTable PageChapter 1 General DescriptionChapter 2 Theory of Operation2-1. Front Key Control LED Codes ...

1GENERALDESCRIPTION17General DescriptionIntroductionThis manual provides service information for the ENCAD, Inc.Croma24 Color Inkjet Printer.There are

18 General DescriptionCroma24 Service Manualplotters to respond to and anticipate our customers’ needs. Principalfeatures are summarized below.Three

General Description 19GENERALDESCRIPTIONCroma24 Service ManualWarnings, Cautions, and NotesWarnings, cautions, and notes are used when additional info

This Page Intentionally Left Blank

20 General DescriptionCroma24 Service ManualPrinter SpecificationsThe specifications and performance characteristics of the Croma24Color Inkjet Printe

General Description 21GENERALDESCRIPTIONCroma24 Service ManualContents of this Service ManualFigures are used in this manual to clarify procedures. T

22 General DescriptionCroma24 Service ManualChapter 4 TROUBLESHOOTING - A table containingproblems that could occur and possible causes and repairsi

General Description 23GENERALDESCRIPTIONCroma24 Service ManualTechnical SupportENCAD offers full technical support and service for its variousproducts

24 General DescriptionCroma24 Service ManualThis Page Intentionally Left Blank

2THEORY OFOPERATION25IntroductionThis chapter explains the mechanical and electrical theory of opera-tion of the ENCAD Croma24 D-Size Color Inkjet pri

26 Theory of OperationCroma24 Service ManualFigure 2-1. General Block Diagram.

Theory of Operation 27THEORY OFOPERATIONCroma24 Service ManualPaper (Media) Axis DriveFigure 2-2. Paper (Media) Axis Drive.The Paper (Media) Axis Dri

28 Theory of OperationCroma24 Service ManualThe Carrier Axis DriveFigure 2-3. Carrier Axis Drive.The Carrier Axis Drive moves the printer’s carrier a

Theory of Operation 29THEORY OFOPERATIONCroma24 Service ManualMain Printed Circuit Board (MPCB)Figure 2-4. Main Printed Circuit Board.The Main Printe

Croma24™COLOR INKJETPRINTERSERVICE MANUALPart Number 208817®

30 Theory of OperationCroma24 Service ManualMicroprocessorThe microprocessor (a Motorola MC68322) is the central processorunit which supervises system

Theory of Operation 31THEORY OFOPERATIONCroma24 Service ManualThe gate array contains the hardware logic for dot firing, monitor-ing changes in the Ca

32 Theory of OperationCroma24 Service ManualThe system firmware is stored in Flash EEPROM and can be up-graded by opening the Control Panel located on

Theory of Operation 33THEORY OFOPERATIONCroma24 Service ManualStepper Motor ControllerFigure 2-6. Stepper Motor Controller.The media is driven by a S

34 Theory of OperationCroma24 Service Manual2. Motor current senseThe voltage across a series current sense resistor is measuredand level shifted so t

Theory of Operation 35THEORY OFOPERATIONCroma24 Service Manualtor) register in the gate array which sets the duty cycle to makeadjustments to the Carr

36 Theory of OperationCroma24 Service ManualThe direction that the Carrier Assembly is moving is known basedupon the state of one detector’s output an

Theory of Operation 37THEORY OFOPERATIONCroma24 Service ManualCarrier Assembly CircuitsFigure 2-10. Carrier Assembly Circuits.The Carrier Assembly co

38 Theory of OperationCroma24 Service Manualalso constantly monitors the media during printing to determine ifthe media has run out.If no paper is sen

Theory of Operation 39THEORY OFOPERATIONCroma24 Service ManualFigure 2-11. Croma24 System Ground Network (Left Side).

4Croma24 Service ManualCopyright © 1995 and 1996 ENCAD®, Inc. All rightsreserved.ENCAD is a registered trademark of ENCAD, Inc.CROMA24™ is a tradema

40 Theory of OperationCroma24 Service ManualFigure 2-12. Croma24 System Ground Network (Right Side).Front Key ControlsThe Control Panel (see Figure

Theory of Operation 41THEORY OFOPERATIONCroma24 Service ManualTable 2-1. Front Key Control LED Codes.

42 Theory of OperationCroma24 Service ManualThis Page Intentionally Left Blank

3MAINTENANCE43MaintenanceIntroductionThis chapter contains general maintenance and cleaning instruc-tions for the Croma24 printer.Scheduled Maintenanc

44 MaintenanceCroma24 Service ManualCleaning ProceduresAlways turn the printer OFF, remove the power cordand the interface cable before cleaning the p

Maintenance 45MAINTENANCECroma24 Service ManualPrinter problems can be caused by an accumulation of dirt or othercontamination on the slide shaft. Th

46 MaintenanceCroma24 Service Manual4. Using a cotton swab dampened with distilled water, wipe theseals and the rubber wiper in the service station un

Maintenance 47MAINTENANCECroma24 Service ManualCartridge Dimple CleaningFigure 3-2. Cartridge Dimple Region.The cartridge dimple area can easily be c

48 MaintenanceCroma24 Service ManualFlex Cable Contact CleaningFigure 3-3. Flex Cable Contacts.Cleaning the flex cable contact area is very important

Maintenance 49MAINTENANCECroma24 Service Manualgears with a stiff brush to knock off any debris. A cotton swabsoaked with isopropyl alcohol can be us

5Croma24 Service ManualFCC Statement (U.S.A.)The United States Federal Communications Commision has specifiedthat the following notice be brought to t

50 MaintenanceCroma24 Service ManualReseat Connectors on MPCB and Carrier BoardIntegrated circuits may become weakened or damagedby electrical dischar

Maintenance 51MAINTENANCECroma24 Service ManualFigure 3-5. Carrier PCB Connection Locations.Figures 3-4 and 3-5 shows the locations of all the connec

52 MaintenanceCroma24 Service ManualReplace Carrier BushingsThe carrier bushings are rated for approximately 1500 hours ofoperational usage. Given an

Maintenance 53MAINTENANCECroma24 Service ManualStepper Motor Winding Resistance CheckFigure 3-8. Stepper Motor.1. Disconnect the stepper motor connec

54 MaintenanceCroma24 Service ManualFigure 3-9. Examples of Banding.Hardware banding is usually characterized by consistent bandingstrips as shown.

Maintenance 55MAINTENANCECroma24 Service ManualAlignments/AdjustmentsThe ENCAD Croma24 printers are designed with a minimum ofmaintenance requirements

56 MaintenanceCroma24 Service ManualThe “Current Heads (Y, M, C)” view represents the alignment of theheads as they are currently entered. This is ju

Maintenance 57MAINTENANCECroma24 Service ManualX-Axis CalibrationThe X-axis calibration procedure ensures that the processing thatdrives the stepper m

58 MaintenanceCroma24 Service Manual2. Become familiar with the actions and results shown inTable 3-1. Note that these actions are performed frombehi

Maintenance 59MAINTENANCECroma24 Service ManualFigure 3-13. Upper Roller Mounting.3. If you loosen one of the mounting screws and the rollermoves in

6Croma24 Service ManualVDE StatementHiermit wird bescheinigt, daß der CROMA24 in Übereinstimmung mitden Bestimmungen der BMPT-AmstbIVfg 234/1991 funke

60 MaintenanceCroma24 Service ManualFigure 3-15. Upper Roller Adjustment.Figure 3-15 shows how the motion (rapid drifting to the right or tothe left)

Maintenance 61MAINTENANCECroma24 Service ManualFigure 3-16. Carrier Head Height Tolerance.1. Remove the lid and the right cover of the printer. SeeCh

62 MaintenanceCroma24 Service Manual3. Place the test cartridge upright on a flat surface and ‘zero’the gauge by loosening the knob near the top and t

Maintenance 63MAINTENANCECroma24 Service ManualDamage may occur to the micrometergauge if the Carrier is moved withoutlifting up on the measuring tip.

64 MaintenanceCroma24 Service Manual10. While lifting up the measuring tip of the micrometer, slidethe Carrier to the left of the stabilizer as shown

Maintenance 65MAINTENANCECroma24 Service ManualCroma24 Control PanelDuring the installation procedures for the Croma24 , a softwareControl Panel for t

66 MaintenanceCroma24 Service ManualThis brings up the Maintenance Menu as seen in Figure 3-21.Figure 3-21. Maintenance Menu.Figure 3-21 shows that t

Maintenance 67MAINTENANCECroma24 Service ManualThe Manufacturing Submenu (Figure 3-22) consists of two proce-dures:Print Quality TestDeadband The proc

68 MaintenanceCroma24 Service ManualFigure 3-24. Deadband Slow/Fast Display.Figure 3-24 shows what the display will look like when printingeither the

Maintenance 69MAINTENANCECroma24 Service ManualThe Diagnostics Menu as seen in Figure 3-25 consists of eighttests:Paper Sensor TestFan TestCarrier Vib

7Croma24 Service ManualMaterial Safety Data SheetCROMA24 QIS (Quality Image Supplies) ink is nonhazardous, requiringno special disposal handling. It

70 MaintenanceCroma24 Service ManualCarriage Vibration TestThe Carriage Vibration Test prints 5 sets of 3 parallel lines to testthe vibration characte

Maintenance 71MAINTENANCECroma24 Service ManualKeypad TestFigure 3-29. Keypad Test.The Keypad Test checks the keypads on the MPCB. The keypadsare the

72 MaintenanceCroma24 Service ManualThe test is selectable in duration. The available time selections are:5, 10, 20, 30, 40, 50, 60, 90, 120, 180, 240

Maintenance 73MAINTENANCECroma24 Service ManualThe Servo Motor Test tests the servo motor by moving the carrierback and forth across the slide shaft.

74 MaintenanceCroma24 Service ManualService MenuFigure 3-33. Service Menu.The Service Menu consists of ROM Information.Figure 3-34. ROM Info.The ROM

Maintenance 75MAINTENANCECroma24 Service ManualFigure 3-35. Service Special Information.The Service Special Information Menu displays information abo

76 MaintenanceCroma24 Service ManualTo enter the BIT mode, apply power to the printer while simulta-neously depressing the ‘soft on’ button. Continue

Maintenance 77MAINTENANCECroma24 Service ManualThe latest firmware version was included and installed onto thecomputer during the installation process

78 MaintenanceCroma24 Service Manual Figure 3-36. Signal Wiring Diagram.

4TROUBLE-SHOOTING79TroubleshootingNo Power• faulty power replace power cordcord• AC input not replace AC entrypresent at power modulesupplyIntroductio

8Croma24 Service ManualWARRANTY OR DAMAGE CLAIMSUnited StatesENCAD®, Inc., warrants its printers ("PRODUCT") to be free from defects in work

80 TroubleshootingCroma24 Service ManualSymptoms Possible cause SolutionTable 4-1. Troubleshooting Table (cont).No Power (cont) • all DC output 1) ch

Troubleshooting 81TROUBLE-SHOOTINGCroma24 Service ManualSymptoms Possible cause SolutionTable 4-1. Troubleshooting Table (cont).Carrier AxisFailure•

82 TroubleshootingCroma24 Service ManualSymptoms Possible cause SolutionTable 4-1. Troubleshooting Table (cont).Carrier Axis Failure • cutter assembl

Troubleshooting 83TROUBLE-SHOOTINGCroma24 Service ManualSymptoms Possible cause SolutionTable 4-1. Troubleshooting Table (cont).Ink Cartridge • cartr

84 TroubleshootingCroma24 Service ManualSymptoms Possible cause SolutionTable 4-1. Troubleshooting Table (cont).Printer Output isBanding• if banding

Troubleshooting 85TROUBLE-SHOOTINGCroma24 Service ManualSymptoms Possible cause SolutionTable 4-1. Troubleshooting Table (cont).• flex cable 1) perfo

86 TroubleshootingCroma24 Service ManualThis Page Intentionally Left Blank

5ASSEMBLY/DISASSEMBLY87Assembly\DisassemblyIntroductionChapter 5 contains the procedures for removal and replacement ofthe Croma24 printer assemblies

88 Assembly\DisassemblyCroma24 Service ManualAlways turn the printer OFF, remove the power cordand the interface cable before beginning any disasembly

Assembly\Disassembly 89ASSEMBLY/DISASSEMBLYCroma24 Service ManualFigure 5-1. Cover Removal/Installation.5. Remove the Left Cover by using a flat head

9Croma24 Service ManualTable of ContentsChapter 1 General Description... 17Introduction ...

90 Assembly\DisassemblyCroma24 Service ManualRemove the MPCB (Main Printed Circuit Board)and Actuator AssemblyIntegrated circuits may become weakened

Assembly\Disassembly 91ASSEMBLY/DISASSEMBLYCroma24 Service Manual11. Using care, remove the MPCB by bringing it out the front of theprinter.Failure to

92 Assembly\DisassemblyCroma24 Service Manual6. Connect the Servo Motor connector to J4 on the MPCB.7. Connect the Power Supply connector to J5 on th

Assembly\Disassembly 93ASSEMBLY/DISASSEMBLYCroma24 Service Manual4. Move the Carrier Belt to the left so it is out of the way of theServo Motor pulley

94 Assembly\DisassemblyCroma24 Service ManualInstall Servo MotorIntegrated circuits may become weakened or damagedby electrical discharge. Do not tou

Assembly\Disassembly 95ASSEMBLY/DISASSEMBLYCroma24 Service Manual11. Perform the Reinstall the Left, Middle, and Right Coversprocedures to reinstall t

96 Assembly\DisassemblyCroma24 Service Manual4. Lift up on the front left side of the Electronics Cover until itcomes part way off of the Carrier Asse

Assembly\Disassembly 97ASSEMBLY/DISASSEMBLYCroma24 Service Manual9. Push the Carrier Belt through the Frame Tensioner enoughto remove the Idler Pulley

98 Assembly\DisassemblyCroma24 Service ManualFailure to use an approved anti-static bag for storageor shipment may cause damage to the MPCB and af-fec

Assembly\Disassembly 99ASSEMBLY/DISASSEMBLYCroma24 Service Manual7. Insert the Strain Relief (with Trailing Cable) onto the CarrierAssembly by sliding