Instruction/ maintenance manual of the product CROMA24 Integra
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CR OMA2 4 COL OR PRINTER SERVICE MANUAL ®.
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Croma24™ COLOR INKJET PRINTER SER VICE MANUAL Part Number 208817 ®.
4 Croma24 Service Manual Copyright © 1995 and 1996 ENCAD ® , Inc . All rights reserved. ENCAD is a registered trademark of ENCAD, Inc . CROMA24™ is a trademark of ENCAD, Inc . Other trademarks and registered trademarks are the property of their respective owners.
5 Croma24 Service Manual FCC Statement (U.S.A.) The United States Federal Communications Commision has specified that the following notice be brought to the attention of the users of the Croma24 printers.
6 Croma24 Service Manual VDE Statement Hiermit wird bescheinigt, daß der CROMA24 in Übereinstimmung mit den Bestimmungen der BMPT-AmstbIVfg 234/1991 funkentstört ist. Der vorschriftsmäßige Betrieb mancher Geräte (z.B. Meßsender) kann allerdings gewissen Einschränkungen unterliegen.
7 Croma24 Service Manual Material Safety Data Sheet CROMA24 QIS (Quality Image Supplies) ink is nonhazardous, requiring no special disposal handling. It can be harmful if swallowed and should be kept away from children. T o obtain a Material Safety Data Sheet, contact ENCAD, Inc.
8 Croma24 Service Manual W ARRANTY OR DAMAGE CLAIMS United States ENCAD ® , Inc., warrants its printers ("P RODUCT ") to be free from defects in workmanship and materials for a period of one year from the date of purchase. In order to submit a W arranty claim, please contact the ENCAD Help Desk at (619) 452-4350.
9 Croma24 Service Manual T able of Contents Chapter 1 General Description ............................................................. 17 Introduction ...................................................................................................
10 Croma24 Service Manual Service Station Cleaning .............................................................................. 45 Linear Encoder Strip Cleaning ...................................................................... 46 Cartridge Dimple Cleaning .
11 Croma24 Service Manual T able of Contents (cont) Firmware/Software Upgrades .................................................................................... 76 Internal Cabling and Signal Flow Diagram ...........................................
12 Croma24 Service Manual T able of Contents (cont) Remove the Lower Roller Assembly and Stepper Motor ......................................... 1 12 Install the Lower Roller Assembly and Stepper Motor ............................................. 1 15 Remove the Power Supply and AC Entry Module .
13 Croma24 Service Manual List of Illustrations Figure Page Chapter 1 General Description Chapter 2 Theory of Operation 2-1. General Block Diagram ................................................................................... 26 2-2. Paper (Media) Axis Drive .
14 Croma24 Service Manual 3-17. Setting Up T ools from Height Gauge Kit .......................................................... 61 3-18. Zeroing the Micrometer Gauge ........................................................................ 62 3-19. T est Cartridge Installed .
15 Croma24 Service Manual 5-10. Trailing Cable Assembly Removal/Installation ............................................... 106 5-1 1 . Carrier Bushing Removal .............................................................................. 108 5-12. Carrier Bushing Installation .
16 Croma24 Service Manual List of T ables T able Page Chapter 1 General Description Chapter 2 Theory of Operation 2-1. Front Key Control LED Codes ......................................................................... 41 Chapter 3 Maintenance 3-1. Pinch Roller Adjustments .
1 GENERAL DESCRIPTION 17 General Description Intr oduction This manual provides service information for the ENCAD, Inc. Croma24 Color Inkjet Printer. There are three versions to the Croma24 Color Inkj.
18 General Description Croma24 Service Manual plotters to respond to and anticipate our customers’ needs. Principal features are summarized below. Three Versions: CAD, GA (Graphic Arts), GA & CAD ENCAD’s software RIP supplied with the GA (Graphic Arts) version Remotely Configured via Host Computer 25" (63.
General Description 19 GENERAL DESCRIPTION Croma24 Service Manual W arnings, Cautions, and Notes Warnings, cautions, and notes are used when additional informa- tion, instructions, or care should be observed. In this manual, warnings cautions, and notes precede the text to which each ap- plies.
20 General Description Croma24 Service Manual Printer Specifications The specifications and performance characteristics of the Croma24 Color Inkjet Printers are as follows: Max Printing Area: Norm 23.
General Description 21 GENERAL DESCRIPTION Croma24 Service Manual Contents of this Service Manual Figures are used in this manual to clarify procedures. They are for illustrative purposes only and may not necessarily be drawn to scale. Material in this manual may be repeated in various sections so that each section can “stand alone”.
22 General Description Croma24 Service Manual Chapter 4 TROUBLESHOOTING - A table containing problems that could occur and possible causes and repairs is found in this chapter. This table is not intended to be a complete listing of troubleshooting procedures.
General Description 23 GENERAL DESCRIPTION Croma24 Service Manual T echnical Suppor t ENCAD offers full technical support and service for its various products.
24 General Description Croma24 Service Manual This Page Intentionally Left Blank.
2 THEORY OF OPERA TION 25 Introduction This chapter explains the mechanical and electrical theory of opera- tion of the ENCAD Croma24 D-Size Color Inkjet printer.
26 Theory of Operation Croma24 Service Manual Figure 2-1. General Block Diagram..
Theory of Operation 27 THEORY OF OPERA TION Croma24 Service Manual Paper (Media) Axis Drive Figure 2-2. Paper (Media) Axis Drive. The Paper (Media) Axis Drive moves the plotting media in a direc- tion perpendicular to the length of the printer.
28 Theory of Operation Croma24 Service Manual The Carrier Axis Drive Figure 2-3. Carrier Axis Drive. The Carrier Axis Drive moves the printer’s carrier assembly along the length of the printer. The drive consists of a servo motor, linear encoder strip, drive belt, and tension assembly.
Theory of Operation 29 THEORY OF OPERA TION Croma24 Service Manual Main Printed Circuit Board (MPCB) Figure 2-4. Main Printed Circuit Board. The Main Printed Circuit Board (MPCB) consists of six functional areas: 1. Microprocessor (CPU) 2. Gate Array 3.
30 Theory of Operation Croma24 Service Manual Microprocessor The microprocessor (a Motorola MC68322) is the central processor unit which supervises system functions, executes the printer firm- ware, manipulates data, and controls input/output data busses.
Theory of Operation 31 THEORY OF OPERA TION Croma24 Service Manual The gate array contains the hardware logic for dot firing, monitor- ing changes in the Carrier Assembly position, controlling DMA for the serial port, and generating the PWM (Pulse Width Modulation) waveforms for the servo controller.
32 Theory of Operation Croma24 Service Manual The system firmware is stored in Flash EEPROM and can be up- graded by opening the Control Panel located on the host computer. Once the Control Panel has been executed, it first starts an initial- ization and status communication sequence with the printer.
Theory of Operation 33 THEORY OF OPERA TION Croma24 Service Manual Stepper Motor Controller Figure 2-6. Stepper Motor Controller. The media is driven by a Stepper Motor, which drives the media in a direction perpendicular to the length of the printer.
34 Theory of Operation Croma24 Service Manual 2. Motor current sense The voltage across a series current sense resistor is measured and level shifted so that it is centered around 5 V. 3. Comparator This portion divides the output of the reference waveform gen- erator by two and compares it to the output of the motor current sensor.
Theory of Operation 35 THEORY OF OPERA TION Croma24 Service Manual tor) register in the gate array which sets the duty cycle to make adjustments to the Carrier Assembly speed.
36 Theory of Operation Croma24 Service Manual The direction that the Carrier Assembly is moving is known based upon the state of one detector’s output and the direction of the transition of the other detector’s output.
Theory of Operation 37 THEORY OF OPERA TION Croma24 Service Manual Carrier Assembly Circuits Figure 2-10. Carrier Assembly Circuits. The Carrier Assembly contains: 1) Carrier PCB 2) Optical Sensors 3) Paper Sensor 4) Inkjet Cartridges The Carrier PCB contains the logic and drive circuitry for the firing of the inkjet cartridges.
38 Theory of Operation Croma24 Service Manual also constantly monitors the media during printing to determine if the media has run out. If no paper is sensed, the paper sensor sends this information to the MPCB, which immediately begins an ‘out of paper’ subroutine.
Theory of Operation 39 THEORY OF OPERA TION Croma24 Service Manual Figure 2-11. Croma24 System Ground Network (Left Side)..
40 Theory of Operation Croma24 Service Manual Figure 2-12. Croma24 System Ground Network (Right Side). Front Key Controls The Control Panel (see Figure 2-13) is located on the lower right side of the printer and consists of five controls and two LED indicators.
Theory of Operation 41 THEORY OF OPERA TION Croma24 Service Manual Table 2-1. Front Key Control LED Codes..
42 Theory of Operation Croma24 Service Manual This Page Intentionally Left Blank.
3 MAINTENANCE 43 Maintenance Introduction This chapter contains general maintenance and cleaning instruc- tions for the Croma24 printer. Scheduled Maintenance Scheduled maintenance consists of a list of checks that are planned to be performed on a regular basis or when conditions warrant it.
44 Maintenance Croma24 Service Manual Cleaning Procedures Always turn the printer OFF, remove the power cord and the interface cable before cleaning the printer. An electrical shock hazard may be present if these proce- dures are not followed. External Cleaning Do not use abrasive cleansers of any sort on the sur- faces of the printer.
Maintenance 45 MAINTENANCE Croma24 Service Manual Printer problems can be caused by an accumulation of dirt or other contamination on the slide shaft. This contamination may lead to drag on the carrier. Extreme drag results in a “carrier axis failure” fault and will stop the carrier motion.
46 Maintenance Croma24 Service Manual 4. Using a cotton swab dampened with distilled water, wipe the seals and the rubber wiper in the service station until no more ink residue or dust can be removed. 5. With a dry swab, wipe all moisture from the seals and wipers.
Maintenance 47 MAINTENANCE Croma24 Service Manual Cartridge Dimple Cleaning Figure 3-2. Cartridge Dimple Region. The cartridge dimple area can easily be contaminated by oils and dirt on fingers and hands or ink spilled onto them. This causes the cartridges to not receive some of the electrical signals for a proper firing of the jets.
48 Maintenance Croma24 Service Manual Flex Cable Contact Cleaning Figure 3-3. Flex Cable Contacts. Cleaning the flex cable contact area is very important due to the ease of which this area can become dirty. This also causes the cartridges to not receive all of the electrical signals for a proper firing of the jets.
Maintenance 49 MAINTENANCE Croma24 Service Manual gears with a stiff brush to knock off any debris. A cotton swab soaked with isopropyl alcohol can be used to remove any ink that may have accumulated on the gears.
50 Maintenance Croma24 Service Manual Reseat Connectors on MPCB and Carrier Board Integrated circuits may become weakened or damaged by electrical discharge. Do not touch or work near in- tegrated circuits without wearing an ESD wrist strap. Ribbon connectors can be easily damaged if incorrectly handled.
Maintenance 51 MAINTENANCE Croma24 Service Manual Figure 3-5. Carrier PCB Connection Locations. Figures 3-4 and 3-5 shows the locations of all the connectors on the MPCB and carrier board respectively. To remove the ribbon cables from their connectors, lift the connector’s ribbon locking mechanism as shown in Figure 3-6.
52 Maintenance Croma24 Service Manual Replace Carrier Bushings The carrier bushings are rated for approximately 1500 hours of operational usage. Given an average of about 3 hours a day of printing for 104 weeks, results in 1560 hours. Therefore, it is safe to approximate 1500 hours into 2 years of continuous service.
Maintenance 53 MAINTENANCE Croma24 Service Manual Stepper Motor W inding Resistance Check Figure 3-8. Stepper Motor. 1. Disconnect the stepper motor connection from the MPCB. 2. Using a standard ohmmeter or multimeter, measure between pins 1 (yellow wire) and 3.
54 Maintenance Croma24 Service Manual Figure 3-9. Examples of Banding. Hardware banding is usually characterized by consistent banding strips as shown. It signifies a slippage in the media’s normal move- ment that is possibly due to the stepper motor, lower drive shaft assembly, or the rollguides on the back of the printer.
Maintenance 55 MAINTENANCE Croma24 Service Manual Alignments/Adjustments The ENCAD Croma24 printers are designed with a minimum of maintenance requirements in mind. Most of the adjustments are controlled and performed via software/firmware interaction that require you to run a subroutine and enter values on the computer.
56 Maintenance Croma24 Service Manual The “Current Heads (Y, M, C)” view represents the alignment of the heads as they are currently entered. This is just an overview of all heads and how they are aligned. Do not attempt to align the heads using this view.
Maintenance 57 MAINTENANCE Croma24 Service Manual X-Axis Calibration The X-axis calibration procedure ensures that the processing that drives the stepper motor is correct to minimize line length accuracy errors.
58 Maintenance Croma24 Service Manual 2. Become familiar with the actions and results shown in Table 3-1. Note that these actions are performed from behind the printer. Table 3-1. Pinch Roller Adjustments. AC TI ON RE S UL T 1. Turn mo unti ng screw coun t erclockw i se (ccw ) .
Maintenance 59 MAINTENANCE Croma24 Service Manual Figure 3-13. Upper Roller Mounting. 3. If you loosen one of the mounting screws and the roller moves in one direction, and you need to move the roller in the opposite direction, tighten the screw that was loosened to its maximum torque (1 in.
60 Maintenance Croma24 Service Manual Figure 3-15. Upper Roller Adjustment. Figure 3-15 shows how the motion (rapid drifting to the right or to the left) of the roller determines which mounting screw .
Maintenance 61 MAINTENANCE Croma24 Service Manual Figure 3-16. Carrier Head Height Tolerance. 1. Remove the lid and the right cover of the printer. See Chapter 5 for procedures. 2. Obtain the 3 tools (Micrometer Dial Gauge, Test Cartridge, and Measuring Tip Extender) from the Height Gauge Kit.
62 Maintenance Croma24 Service Manual 3. Place the test cartridge upright on a flat surface and ‘zero’ the gauge by loosening the knob near the top and turning the dial until the needle is at the ‘0’ position on the dial. Tighten the knob. See Figure 3-18.
Maintenance 63 MAINTENANCE Croma24 Service Manual Damage may occur to the micrometer gauge if the Carrier is moved without lifting up on the measuring tip. This action could also take the micrometer out of alignment and foul the results of the alignment.
64 Maintenance Croma24 Service Manual 10. While lifting up the measuring tip of the micrometer, slide the Carrier to the left of the stabilizer as shown in Figure 3- 20. Position it as close to the screw as possible and drop the measuring tip onto the platen.
Maintenance 65 MAINTENANCE Croma24 Service Manual Cr oma24 Contr ol Panel During the installation procedures for the Croma24 , a software Control Panel for this printer is installed onto the computer. This control panel provides a means to monitor and adjust certain vari- ables utilized by the printer.
66 Maintenance Croma24 Service Manual This brings up the Maintenance Menu as seen in Figure 3-21. Figure 3-21. Maintenance Menu. Figure 3-21 shows that the Maintenance Menu for the Croma24 is divided into 3 submenus: Manufacturing Diagnostics Service Options Manufacturing Menu Figure 3-22.
Maintenance 67 MAINTENANCE Croma24 Service Manual The Manufacturing Submenu (Figure 3-22) consists of two proce- dures: Print Quality Test Deadband The procedures are primarily used in the manufacturing process and is adjusted correctly before it leaves the plant.
68 Maintenance Croma24 Service Manual Figure 3-24. Deadband Slow/Fast Display. Figure 3-24 shows what the display will look like when printing either the fast or slow test if it is out of alignment. A correctly aligned printer will appear as if there is only a series of vertical lines printed.
Maintenance 69 MAINTENANCE Croma24 Service Manual The Diagnostics Menu as seen in Figure 3-25 consists of eight tests: Paper Sensor Test Fan Test Carrier Vibration Test Color Test Keypad Test LED Test Servo Motor Test Paper Motor Test Paper Sensor Test The Paper Sensor Test checks the operation of the optical paper sensor.
70 Maintenance Croma24 Service Manual Carriage Vibration Test The Carriage Vibration Test prints 5 sets of 3 parallel lines to test the vibration characteristics of the carrier assembly. Color Test Figure 3-28. Color Test. The Color Test prints a 1 inch swath of each color (total of 4) to test for banding.
Maintenance 71 MAINTENANCE Croma24 Service Manual Keypad Test Figure 3-29. Keypad Test. The Keypad Test checks the keypads on the MPCB. The keypads are the microswitches that are activated whenever one of the tabs on the actuator is depressed. Each time a switch is activated and hold for a few seconds, a LED (or both LEDs) becomes illuminated.
72 Maintenance Croma24 Service Manual The test is selectable in duration. The available time selections are: 5, 10, 20, 30, 40, 50, 60, 90, 120, 180, 240, or 300 seconds, 10 or 30 minutes, or 1 hour. LED Test Figure 3-30. LED Test. The LED Test lights both LEDs on the printer.
Maintenance 73 MAINTENANCE Croma24 Service Manual The Servo Motor Test tests the servo motor by moving the carrier back and forth across the slide shaft. Speed is selectable to either slow or fast. The number of cycles the carrier does is selectable between 0 and 10,000 cycles.
74 Maintenance Croma24 Service Manual Service Menu Figure 3-33. Service Menu. The Service Menu consists of ROM Information. Figure 3-34. ROM Info. The ROM Info screen displays the current firmware version, and date and time of development. This information helps the technician by providing a means of identifying the firmware loaded on the printer.
Maintenance 75 MAINTENANCE Croma24 Service Manual Figure 3-35. Service Special Information. The Service Special Information Menu displays information about the printers plot and ON time (in seconds) as well as the Maximum PWM/Position and Carriage Shut Down Position.
76 Maintenance Croma24 Service Manual To enter the BIT mode, apply power to the printer while simulta- neously depressing the ‘soft on’ button. Continue to hold onto the ‘soft on’ button until the carrier assembly has traveled halfway across the length of the platen.
Maintenance 77 MAINTENANCE Croma24 Service Manual The latest firmware version was included and installed onto the computer during the installation process. To upgrade the firm- ware on the printer, open the Control Panel with the printer online. During the initial start up of the Control Panel, it commu- nicates with the printer’s firmware.
78 Maintenance Croma24 Service Manual Figure 3-36. Signal Wiring Diagram..
4 TROUBLE- SHOOTING 79 T roubleshooting No Power • faulty power replace power cord cord • AC input not replace AC entry present at power module supply Introduction Chapter 4, Troubleshooting consists of a table that is intended to aide the technician in troubleshooting the Croma24 printer.
80 T roubleshooting Croma24 Service Manual Symptoms Possible cause Solution T able 4-1. T roubleshooting T able (cont). No Power (cont) • all DC output 1) check fuse on voltages not power supply pre.
T roubleshooting 81 TROUBLE- SHOOTING Croma24 Service Manual Symptoms Possible cause Solution T able 4-1. T roubleshooting T able (cont). Carrier Axis Failure • dirty (or perform Slide Shaft lubrica.
82 T roubleshooting Croma24 Service Manual Symptoms Possible cause Solution T able 4-1. T roubleshooting T able (cont). Carrier Axis Failure • cutter assembly replace cutter (cont) malfunction assem.
T roubleshooting 83 TROUBLE- SHOOTING Croma24 Service Manual Symptoms Possible cause Solution T able 4-1. T roubleshooting T able (cont). Ink Cartridge • cartridge dimple 1) perform Misfiring (cont).
84 T roubleshooting Croma24 Service Manual Symptoms Possible cause Solution T able 4-1. T roubleshooting T able (cont). Printer Output is Banding • if banding is 1) inspect and/or consistent replace.
T roubleshooting 85 TROUBLE- SHOOTING Croma24 Service Manual Symptoms Possible cause Solution T able 4-1. T roubleshooting T able (cont). • flex cable 1) perform Flex contacts dirty or Cable Contact.
86 T roubleshooting Croma24 Service Manual This Page Intentionally Left Blank.
5 ASSEMBL Y/ DISASSEMBL Y 87 AssemblyDisassembly Intr oduction Chapter 5 contains the procedures for removal and replacement of the C roma 24 printer assemblies and mechanisms. Illustrations are provided for clarity. Steps for each replaceable part may depend on parts already removed in previous disassembly directions.
88 AssemblyDisassembly Croma24 Service Manual Always turn the printer OFF, remove the power cord and the interface cable before beginning any disasembly procedures.
AssemblyDisassembly 89 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual Figure 5-1. Cover Removal/Installation. 5. Remove the Left Cover by using a flat head screwdriver to unhook the locking clasps located in Figure 5-1. All clasps but one can be accessed from under the Base.
90 AssemblyDisassembly Croma24 Service Manual Remove the MPCB (Main Printed Circuit Board) and Actuator Assembly Integrated circuits may become weakened or damaged by electrical discharge. Do not touch or work near in- tegrated circuits without wearing an ESD wrist strap.
AssemblyDisassembly 91 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual 11. Using care, remove the MPCB by bringing it out the front of the printer. Failure to use an approved anti-static bag for storage or shipment may cause damage to the MPCB and af- fect the Warranty.
92 AssemblyDisassembly Croma24 Service Manual 6. Connect the Servo Motor connector to J4 on the MPCB. 7. Connect the Power Supply connector to J5 on the MPCB. 8. Connect the Stepper Motor connector to J7 on the MPCB. 9. Connect the Fan connector to J3 on the MPCB.
AssemblyDisassembly 93 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual 4. Move the Carrier Belt to the left so it is out of the way of the Servo Motor pulley. 5. Move the Carrier Assembly to the left end of the Slide Shaft. Integrated circuits may become weakened or dam- aged by electrical discharge.
94 AssemblyDisassembly Croma24 Service Manual Install Servo Motor Integrated circuits may become weakened or damaged by electrical discharge. Do not touch or work near integrated circuits without wearing an ESD wrist strap. 1. Put on an ESD wrist strap.
AssemblyDisassembly 95 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual 11. Perform the Reinstall the Left, Middle, and Right Covers procedures to reinstall the Left, Middle and Right Covers. Remove the Carrier Assembly , Carrier Belt, and the Frame T ensioner Figure 5-3.
96 AssemblyDisassembly Croma24 Service Manual 4. Lift up on the front left side of the Electronics Cover until it comes part way off of the Carrier Assembly. Then lift up on the front right side of the Electronics Cover and move the Electronics Cover slightly to the left so that the back of it clears the Trailing Cable Support Assembly.
AssemblyDisassembly 97 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual 9. Push the Carrier Belt through the Frame Tensioner enough to remove the Idler Pulley Assembly from the Frame Tensioner, and then set aside the Idler Pulley Assembly and the Frame Tensioner.
98 AssemblyDisassembly Croma24 Service Manual Failure to use an approved anti-static bag for storage or shipment may cause damage to the MPCB and af- fect the Warranty. 14. Place the Carrier Assembly in an ESD (anti-static) bag in preparation for shipment to ENCAD for replacement or repair, or if it is to be stored for repair at your facility.
AssemblyDisassembly 99 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual 7. Insert the Strain Relief (with Trailing Cable) onto the Carrier Assembly by sliding it onto the Strain Relief Support until it snaps firmly into place. See Figure 5-4. 8. Place the Trailing Cable into the J1 connector lock on the Carrier PCB.
100 AssemblyDisassembly Croma24 Service Manual 13. Once the Idler Pulley Assembly is in position, pinch the belt to hold the Idler Pulley Assembly in place and pull it into the Frame Tensioner so that the axle rests in the V-shaped groove in the Frame Tensioner.
AssemblyDisassembly 101 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual Figure 5-7. Carrier PCB Removal/Installation. 4. Unlock the latch on the right end of the Carrier Assembly and lift up the right end of the Carrier PCB.
102 AssemblyDisassembly Croma24 Service Manual Failure to use an approved anti-static bag for storage or shipment may cause damage to the Carrier PCB and affect the Warranty. 6. Place the Carrier PCB in an ESD bag (anti-static bag) in preparation for shipment to ENCAD for replacement or repair, or if it is to be stored at your facility for repair.
AssemblyDisassembly 103 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual Figure 5-8. Paper and Encoder Sensor Removal. 2. To remove the Paper Sensor: a. Unlock the connector at J3 and remove the flex cable. b. Turn the Carrier Assembly over and hold it while firmly grasping the Paper Sensor between thumb and index finger.
104 AssemblyDisassembly Croma24 Service Manual the Encoder clear the ridges which hold it in place. Then pull it straight out. See Figure 5-8. Install the Paper Sensor or the Encoder Sensor Figure 5-9. Paper and Encoder Sensor Installation. 1. To install the Paper Sensor: a.
AssemblyDisassembly 105 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual e . Turn the Carrier Assembly over and insert the Paper Sensor flex cable into the connector at J3. f . Push both sides of the connector lock shut at the same time. 2. To install the Encoder Sensor: a.
106 AssemblyDisassembly Croma24 Service Manual 4. Remove the Trailing Cable from the triangular portion of the Strain Relief. 5. Lift up on the short end of the tape and unfold the bend in the Trailing Cable. 6. Remove the Strain Relief by pushing the Trailing Cable down through the opening in the Strain Relief.
AssemblyDisassembly 107 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual 8. Using a #2 Phillips screwdriver, remove the three screws and washers securing the Trailing Cable Cover Assembly to the C- Bracket Assembly.
108 AssemblyDisassembly Croma24 Service Manual 7. Insert the Strain Relief (with Trailing Cable) onto the Carrier Assembly by sliding it onto the Strain Relief Support until it snaps firmly into place. See Figure 5-4. Replacing the Carrier Bushings 1.
AssemblyDisassembly 109 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual Figure 5-12. Carrier Bushing Installation. 5. Orient the new Bushing as shown in Figure 5-12 so that the metal tab on top of the Bushing goes into the Carrier Assembly first. 6. Push the Bushings in until they snap into place.
110 AssemblyDisassembly Croma24 Service Manual Remove the Service Station, Seals, and W ipers Figure 5-13. Service Station, Exploded View. 1. Place the Middle Cover in the open position. 2. Move the Carrier Assembly to the left side of the Slide Shaft.
AssemblyDisassembly 111 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual farther to the right might be required to release the left side of the Service Station. 6. To remove a Service Station Wiper, lift the Wiper up and off of the Wiper support. 7. To remove a Service Station Seal: a.
112 AssemblyDisassembly Croma24 Service Manual 3. Position the Service Station inside the Right Cover and place the left side of the Service Station into the Platen. 4. Push down on the right side of the Service Station until the Service Station snaps into place.
AssemblyDisassembly 113 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual p r i n t e r . Figure 5-14. C-Bracket Assembly and Platen Removal..
114 AssemblyDisassembly Croma24 Service Manual 7. Remove the C-Bracket Assembly by removing the four attaching screws. See Figure 5-14. 8. Using a #2 Phillips screwdriver, remove the grounding strap on the left side of the Slide Shaft. 9. Remove the Slide Shaft using a 3mm hex head driver.
AssemblyDisassembly 115 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual Install the Lower Roller Assembly and Stepper Motor NOTE Ensure that the stepper motor wires are exiting the motor casing in the “down” direction when completely installed. The wires should be opposite from the holes that secure the bracket to the platen.
116 AssemblyDisassembly Croma24 Service Manual Figure 5-16. Installing Lower Roller Assembly. 3. Lower the Lower Roller Assembly into the Base of the printer by aligning the bracket guides with the base guide tracks.
AssemblyDisassembly 117 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual 6. Route the Stepper Motor ground strap through the wire access area and to the wire clamp.
118 AssemblyDisassembly Croma24 Service Manual 6. Disconnect the Trailing Cable from J6 on the MPCB and remove the Trailing Cable Cover Assembly. 7. Disconnect the Servo Motor cable from J4 on the MPCB and remove the Servo Motor. 8. Remove the C-Bracket Assembly.
AssemblyDisassembly 119 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual 17. Disconnect the AC Entry Module from the Power Supply Board by disconnecting cable from TB1. 18. Remove 4 screws and washers securing power supply board and remove power supply board.
120 AssemblyDisassembly Croma24 Service Manual Install the Power Supply and AC Entry Module 1. Insert the AC Entry Module by snapping it into the Power Supply base. 2. Install Power Supply board into the Power Supply base using four mounting screws and washers.
AssemblyDisassembly 121 ASSEMBL Y/ DISASSEMBL Y Croma24 Service Manual 12. Secure the Lower Roller Assembly onto the Platen. 13. Attach the C-Bracket Assembly to the Platen by aligning the bracket onto the bracket guide pins and securing with attaching hardware.
122 AssemblyDisassembly Croma24 Service Manual This Page Intentionally Left Blank.
6 P ARTS LIST 123 Parts List This chapter lists the items and their associated numbers for the parts and assemblies of the Croma24 printers that are field re- placeable. The list is in order of part name as identified in the assembly/disassembly chapter.
124 Parts List Croma24 Service Manual 6-2 3 ACTUATOR, MPCB ................................ 207030 6-2 4 MAIN PRINTED CIRCUIT BOARD ..... 207047 6-2 5 LOWER DRIVE SHAFT ASSY .............. 206479 6-2 6 FAN ASSEMBLY ....................................
Parts List 125 P ARTS LIST Croma24 Service Manual Figure 6-1. Croma24 Assembly Parts (Platen and Above)..
126 Parts List Croma24 Service Manual Figure 6-2. Croma24 Assembly Parts (Below Platen)..
Parts List 127 P ARTS LIST Croma24 Service Manual Figure 6-3. Carrier Assembly Breakdown..
128 Parts List Croma24 Service Manual Figure 6-4. C-Bracket Assembly Breakdown..
Parts List 129 P ARTS LIST Croma24 Service Manual Figure 6-5. Lower Roller Assembly Breakdown..
130 Parts List Croma24 Service Manual This Page Intentionally Left Blank.
INDEX 131 Index A axis drive carrier . . 28 paper (media) . . 27 B banding . . 84 hardware or software . . 53 built in test (BIT) . . 75 C cabling . . 77 calibration color . . 55 deadband . . 56 , 67 head height . . 60 X-axis . . 57 carrier assembly .
132 Croma24 Service Manual S scheduled maintenance . . 43 service station . . 45 ,1 1 0 servo motor . . 92 signal flow . . 77 skewing . . 57 stepper motor . . 1 12 T technical specifications . . 20 technical support ENCAD BBS . . 23 ENCAD website . . 23 help desk F AX # .
An important point after buying a device Integra CROMA24 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Integra CROMA24 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Integra CROMA24 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Integra CROMA24 you will learn all the available features of the product, as well as information on its operation. The information that you get Integra CROMA24 will certainly help you make a decision on the purchase.
If you already are a holder of Integra CROMA24, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Integra CROMA24.
However, one of the most important roles played by the user manual is to help in solving problems with Integra CROMA24. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Integra CROMA24 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
