TrojanLabel Trojan 3 User Manual
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TrojanLabel Trojan 3 User Manual

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User Guide
Revision 3.8
22834693-EN-E

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Summary of Contents for TrojanLabel Trojan 3

  • Page 1 User Guide Revision 3.8 22834693-EN-E...
  • Page 2 Trojanlabel. © 2016 Trojanlabel, All the content is the confidential property of, or licensed to, Trojanlabel (“Trojanlabel,” “we,” or “us”) and is protected under Danish and Foreign copyright, trademark and other intellectual property laws.

  • Page 3: Table Of Contents

    Contents Specification and General Information ..................... 5 Certificate and Compliance ....................... 5 Introduction ............................6 General Information .......................... 6 Specification and Application ......................7 Setting up the TrojanThree for printing ....................10 Unpacking and Physical setup ......................10 2.1.1 Setting the adjustable feet: ..................... 10 2.1.2 Mounting the touchscreen and connecting the cables for the screen: ........
  • Page 4 11.2 General Settings (HOME menu) ...................... 40 11.2.1 Overview ..........................40 11.2.2 Settings ............................ 41 11.2.3 Statistics ........................... 46 11.2.4 View Statistics in Browser and Exporting Statistics to CSV file format ........48 11.2.5 Shutdown ..........................49 11.3 TrojanThree Handling (TrojanThree tab) ..................50 11.3.1 Overview ..........................
  • Page 5 17.3 Direction of feeding ......................... 83 17.3.1 Correct direction of feeding ....................83 17.3.2 Incorrect direction of feeding ....................83 17.4 Print on the “back side” of a paper bag ..................83 17.4.1 Printing in the optimal print zone (back side) ................. 84 17.4.2 Printing across the bottom fold ....................

  • Page 6: Specification And General Information

    1 Specification and General Information 1.1 Certificate and Compliance TrojanThree User Guide Page | 5...

  • Page 7: Introduction

    1.2 Introduction Original instructions These instructions are original instructions made by Trojanlabel for the Trojanlabel digital over-printer (henceforth called the machine or TrojanThree). Purpose The purpose of these instructions is to ensure correct installation, use, handling and maintenance of the machine.

  • Page 8: Specification And Application

    The machine must not be used for any other purpose than the purpose mentioned above. Warning about foreseeable misuse The TrojanThree may not be used with inks not endorsed by Trojanlabel. All inks purchased from Trojanlabel or from official Trojanlabel distributors worldwide are endorsed by Trojanlabel.
  • Page 9 Weight approximately 85kgs including inks Electrical: • Nominal supply voltage: 110-240V • Nominal supply frequency: 50-60hz • Estimated peak consumption: 150W Machine power supply: • 150 W (48 VDC, 3.2 A), please see “Meanwell SP-150-spec.pdf” for details: http://www.trojanextranet.com/media/58025/sp-150-spec.pdf Technical Specifications: •...
  • Page 10 The machine requires ink jet coated materials for optimal print quality; some non-coated materials like cardboard or other packaging materials will also work. Please contact Trojanlabel or your distributor for recommendations of suited materials. It is imperative to have a local source of material, to ensure a stable production.

  • Page 11: Setting Up The Trojanthree For Printing

    2 Setting up the TrojanThree for printing 2.1 Unpacking and Physical setup The TrojanThree is packed in a wooden crate (dimensions: 74x59x158cm) and shipped strapped on top of a wooden pallet (total weight of the package including the crate is around 125kgs). After opening the wooden crate the machine must be lifted out from the crate.

  • Page 12: Mounting The Touchscreen And Connecting The Cables For The Screen

    2.1.2 Mounting the touchscreen and connecting the cables for the screen: Lead the cables of the touchscreen through the hole on the top of the machine cabinet. Then fix the touchscreen stand with 4 screws to the top of the machine cabinet. Mounting touchscreen stand...

  • Page 13: Mounting Print Engine

    2.1.3 Mounting Print Engine There are 2 mounting brackets to attach the print engine module to the machine cabinet. Each mounting bracket has to be fixed with 2 screws. 2x Mounting bracket After fixing the mounting brackets, the print engine module can be fixed by the mounting brackets with 1 screw on each side.
  • Page 14 Connect all the tubes and cables between print engine module and machine cabinet. Before connecting tubes and cables NOTE: The luers are matching for the ink tubes at incoming and return ink lines so the tubes cannot be connected wrong. Make sure the colors of the tubes are matching when connecting the tubes. The 2 Ethernet cables are labeled with the proper port number (J4, J5).

  • Page 15: Cabling (Network And Power Supply)

    2.2 Cabling (network and power supply) The machine has 4 cable inlets: 1. Power Supply 2. Ethernet 3. OEM Port for encoder signals 4. I/O port Only the power supply cable is necessary for powering up the machine. The network cable is necessary for sending new print jobs to the TrojanThree and for remote support/software updates.

  • Page 16: Power On

    Installing ink tanks The TrojanThree printer uses CMYK ink tanks, each contain 2 liters of ink when opened. Every TrojanThree ink tank is QA chip protected ensuring that only genuine Trojanlabel ink tanks can be used. TrojanThree User Guide Page | 15...

  • Page 17: Installing The Printhead

    Open door on back side of the cabinet to gain access to ink tanks (orange arrow on picture above). Connect QA chip reader cable (green arrow on picture above). The connector clicks onto the slot when properly connected. Connect tube with connector (red arrow on picture above). The connector clicks onto the slot when properly connected.
  • Page 18 3. Remove the printhead from the foil bag. 4. Remove the orange protective plastic cover from the printhead cartridge. Holding the printhead cartridge by the handle a. Release the flaps covering the ink ports b. Release the clip retaining the cover near the center of the printhead cartridge c.
  • Page 19 NOTE: Dispose of the removed strip immediately and do not allow the removed strip to contact the electrical contacts or the printhead nozzles. CAUTION! • DO NOT touch the printhead cartridge’s ink couplings, nozzle surface or the electrical contacts when installing the printhead cartridge. Hold the printhead cartridge ONLY by the handles.
  • Page 20 2. Press Release Printhead button in TrojanThree -> Maintenance menu to open printhead latch: NOTE: The above warning label can be found on the printhead latch. Trying to open the blue plastic latch manually by the handle will most likely break the latch. Breaking the latch is considered as improper usage and therefore replacement is out of warranty.
  • Page 21 4. Close printhead latch. 5. Press Install Printhead button in TrojanThree -> Maintenance menu to start priming up the printhead with ink. NOTE: When the system is primed up for the first time (first installation when there has not been any ink in the ink delivery system and the reservoir ink tanks), printhead priming only begins when reservoir ink tanks are filled up with ink.

  • Page 22: Integrating The Trojanthree Oem Print Module

    This section is only presenting the applications as the physical integration of the TrojanThree is done by the local Trojanlabel distributor or by Trojanlabel directly in areas where there is no official Trojanlabel partner. Trojanlabel has a separate technical integration document for detailed description and technical specification.

  • Page 23: Label Printer (Lp) Version

    4.2 Label printer (LP) version Example: TrojanThree built on a GM DC330 mini finishing line printing labels on roll media Requirements: The speed of the finishing line has to be able to do 9 meters / minute (6ips) or 18 meters / minute (12ips) constant speeds.

  • Page 24: Sending, Starting, Selecting And Queuing Print Jobs

    5 Sending, Starting, Selecting and Queuing Print Jobs 1. Print Jobs can be sent via the TrojanThree driver by default (see section 10 for driver features and installation) and/or via the Trojan RIP software (optional). All jobs sent through the TrojanThree driver or the Trojan RIP software are stored in Job Library menu (if feature is not disabled).
  • Page 25 6. If the Print Queue is paused, press the resume button on the overview screen. If the queue is active the print job will start immediately, and print job progress is viewed in the “Overview”-screen, which is automatically displayed when starting a print (when Auto switch to overview when printing from job library option is enabled in HOME ->...

  • Page 26: Pause, Resume Or Stop A Print Job

    6 Pause, Resume or Stop a Print Job Pause, resume and stop of print job is done from the TrojanThree tab -> Overview menu. • Pause: Press the Pause/Resume button. Print state will change to “Paused” at status bar. Stop Pause/Resume Print job paused Print state changed at status bar to Paused...
  • Page 27 • Stop: Press the Stop/Clear Error button. Print state will change to “NA” and current print job is canceled and removed from print queue. Print job canceled, no job(s) loaded in print queue Status bar print state is NA NOTE: NA = Not Available TrojanThree User Guide Page | 26...

  • Page 28: Shutting Down The Trojanthree

    7 Shutting Down the TrojanThree • Shut down procedure: 1. Go to HOME tab 2. Press ‘Shut down’ menu 3. Press the big red ‘Shutdown TrojanController’ button 4. Reconfirm by selecting ok. 5. Green information button is displayed about shutting down process, no need to press ok on that button 6.

  • Page 29: Printing Modes

    8 Printing Modes Continuous and blackmark mode is only available for the Label Printer version of the TrojanThree. 8.1 Continuous Printing Mode (only available at LP version) • To select continuous printing mode go to TrojanThree -> Media Settings menu and choose ‘Continuous’...

  • Page 30: Diecut Mode (Available For Both Lp And Op Versions)

    8.2 Diecut Mode (available for both LP and OP versions) TrojanThree Over Printer (OP) version: Media gap mode is the only active TOF mode at the OP version of the TrojanThree. Requires media present sensor to be installed. Save & Apply TrojanThree Label Printer (LP) version: •...

  • Page 31: Blackmark Mode (Only Available At Lp Version With Sensor)

    8.3 Blackmark Mode (only available at LP version with sensor) • To select blackmark printing mode go to TrojanThree -> Media Settings menu and choose ‘Blackmark’ as TOF mode (TOF = Top of Form) to describe the top of form algorithm (how to detect the top of the next label).

  • Page 32: Label Gap Size Requirements And Print Speeds

    9 Label Gap Size Requirements and Print Speeds TrojanThree Over Printer (OP) version: The TrojanThree OP version has to have a media sensor installed which is detecting the packaging material on the conveyor belt. Therefore there are no gap size requirements. Based on the media sensor signals, the TrojanThree is printing when media is present on the belt and waiting for the next media signal for the next print.

  • Page 33: Driver Installation And Features

    10 Driver Installation and Features 10.1 Driver Installation • The TrojanThree driver can be found on the USB stick supplied with the TrojanThree package • It is available for downloading on the Internet: http://www.trojanextranet.com/media/58331/win_driver_13-sirius_r13.1-17nov2016.zip • Open TrojanThree Driver installer on user’s PC, run WinSetup.exe and choose ‘Install Printer Software’...
  • Page 34 • Select ‘Configure to print over the Network’ NOTE: USB printing is not supported for the TrojanThree. • During the setup process, the installer will detect the TrojanThree printer(s) on the network. Select the desired TrojanThree and press ‘Next’ button to continue installation. TrojanThree User Guide Page | 33...
  • Page 35 • Depending on Local Network policy there might be occasions when the auto detection of the TrojanThree is not working. This case type the IP address of the TrojanThree manually. NOTE: Current IP address of the TrojanThree printer can be checked on the touch screen at HOME ->...

  • Page 36: Driver Features And Functions

    • The TrojanThree printer can print from any software which is able to print from Microsoft Windows environment. • Handles ICM color profiles (provided by Trojanlabel). • General driver settings: Orientation: Adopts software settings (like Adobe Reader) Copies: Number of copies times the number of labels in actual print job...
  • Page 37 Media:  Type: List of available color profiles (5 profiles by default)  Size: predefined size from the list or custom size • Media Name: Save custom size into the profile list • Oversize: Full bleed printing = oversizing the image by 1mm over the edges when printed. Aspect ratio is locked •...

  • Page 38: Using Color Profiles

    However in cases where the default profiles cannot produce the acceptable colors and quality, there are additional color profiles which can be downloaded from Trojanlabel extranet site. Also Trojanlabel is doing color profiling on demand if requested.
  • Page 39 Installing additional color profiles:  Download and install executable package. Installed color profiles are available in media type list after installation. TrojanThree User Guide Page | 38...

  • Page 40: Software Features

    11 Software Features 11.1 Status Bar Status bar Status bar changes on events • Print Queue State: Running or Paused and • System State: number of print jobs in queue Online – ready for printing Job Available – print job is in the print queue •...

  • Page 41: General Settings (Home Menu)

    11.2 General Settings (HOME menu) 11.2.1 Overview Overview menu • Information from currently printed job, including: Preview image of the label which is being printed at the moment  Label counter  Name of print job in job library  TrojanThree User Guide Page | 40...

  • Page 42: Settings

    Contact information • Service ID is a unique ID for each TrojanThree printer. Based on the service ID, Trojanlabel support team can access to the TrojanControl via the internet from remote and provide support. • Actual software version number of the TrojanControl interface (GUI).
  • Page 43 Alternative update URL for offline updating). • Press download button to download updates (each time when a new update is available a newsletter is released by Trojanlabel). • Every time you change a setting use the Save button to save the changes.
  • Page 44 User Preferences Button Switch to language Save • System language: desired language from the list. Press Save button to switch into the selected language. • Print preview generation method: When idle (default): creates one preview thumbnail image from the first image in the actual print job when print job arrives, then job is printed out.
  • Page 45 User Management button Save • By default user management is not enabled, every function of the TrojanThree printer is accessible without user authentication. • Once User Management is enabled (press save button to enable) authentication is required for accessing specific functions in TrojanControl. A user with ‘User Management’ rights (like the built in ‘admin’...
  • Page 46 WARNING: Do not lock out yourself! At least one user must have ‘User Management’ right otherwise there is no way to add or change properties of other users. In case you end up locked out please contact Trojanlabel support who can restore the default user settings. Save Printing prefrences button •...

  • Page 47: Statistics

    11.2.3 Statistics Last Printed Jobs button: • Statistics list for the last 30 printed jobs (contains: number of pages, print speed, ink consumption, ink cost/label calculation, ink + print head cost/label, ink + media + print head cost/label calculation) • Cost/label (ink only) calculation is the cost/1 label or page in the actual print job based on ink tank price given at HOME ->...
  • Page 48 • Cost/label (ink + PH + media) calculation is the cost/1 label or page in the actual print job based on ink tank price and print head price given at HOME -> Settings -> Consumables menu and in addition media price given at TrojanThree- > Media settings menu (See section 11.3.6, m² price for continuous material and unit or label price for packaging material and diecut or blackmarked material).

  • Page 49: View Statistics In Browser And Exporting Statistics To Csv File Format

    11.2.4 View Statistics in Browser and Exporting Statistics to CSV file format Statistics data from HOME -> Statistics menu can be exported and saved into a CSV file from a user PC which is connected to the same network as the TrojanThree. •...

  • Page 50: Shutdown

    Closer view NOTE: Ink consumption is more detailed in this view and displayed for each used base color (CMYK) and in total as well. 11.2.5 Shutdown • Shuts down the TrojanThree printer completely. NOTE: When shutting down the machine it is advised to wait with turning the power switch off until the shutdown process is finished.

  • Page 51: Trojanthree Handling (Trojanthree Tab)

    11.3 TrojanThree Handling (TrojanThree tab) 11.3.1 Overview Pause/Resume Cancel Overview menu when TrojanThree is printing. • Information from currently printed job, including: Preview image of the label which is being printed at the moment  Label counter  Name of print job in job library ...

  • Page 52: Maintenance

    11.3.2 Maintenance Wipe Printhead button Maintenance module performs printhead wiping 3 times to clean the surface of the printhead. Light Clean button Additional maintenance routine for fixing fine streaks and for cleaning printhead surface. Takes about a minute. Can be run multiple times. Advised to use when automatic maintenance routines and ink circulations are not enough.
  • Page 53 Release Printhead button Opens up the printhead latch to be able to install/replace the printhead physically. Pressing the release printhead button de-primes the installed printhead. Insert Printhead button Primes up the newly inserted printhead with ink. NOTE: Priming up the printhead with ink may take several minutes (about 5 minutes). NOTE: During first time installation, when the reservoir tanks are not filled up with ink, the printhead priming does not begin until reservoir tanks get full.

  • Page 54: Job Library

    11.3.3 Job Library Number of Copies Collate Search for print jobs Job Info Delete Job Print Print from Stored Print Job Paging • Stores 30 printed jobs with random job name by default (print streams uploaded from driver). • Print jobs can be renamed: Renamed print jobs are stored beyond the default 30 with random name.
  • Page 55 Information button: Rename print job Rotate preview clockwise Rotate preview counter-clockwise Print one copy for cost calculation Save changes View previews Cost calculation without printing Applied color profile in the driver Print one copy for cost calculation button: Prints only one copy without pre or post job maintenance.

  • Page 56: Print Queue

    11.3.4 Print Queue Batch mode on/off Pause/Resume print queue Delete Job from print queue Information • Print jobs are queued progressively as they sent and processed in FIFO (first in first out) system. The queue can be managed from Print queue menu. •...

  • Page 57: Diagnostics

    11.3.5 Diagnostics • Information about software, serial numbers, total label counter. Temperature: Adjusting ink temperature to room temperature for the best print quality. The average temperature of the room where the TrojanThree is set up displayed in temperature field based on the feedback of the built in temperature sensor. Heating up the ink right before printing will be adjusted to environmental temperature.

  • Page 58: Media Settings

    11.3.6 Media Settings Media Settings Basic: Save as profile Delete Profile Save & Apply Saved Profiles List NOTE: For TrojanThree OP version, Continuous and Blackmark mode is not available (only at LP version software). At OP version the TOF mode is always set to diecut as printing is done on size cut packaging materials, no roll media is applied.
  • Page 59 • Unit cost /Square meter cost: Price of 1 printed unit (like a cardboard box or paper bag) or price of one label for die cut material or Square meter price for Continuous and Blackmark label material. Used for total cost/label calculation. (See section 11.2.3). The field changes from unit to square meter cost when TOF mode is changed from diecut to continuous or blackmark.
  • Page 60 Media Settings Advanced: Save as Profile Delete Profile Save & Apply Saved Profiles List • KWS mode: KWS = Keep Wet Spitting KWS is a function to protect the 70,400 printhead nozzles from dehydration. In practice it means that during printing all the nozzles fire some ink, even the nozzles which do not take part effectively in printing.
  • Page 61 • KWS levels: KWS level 0 KWS level 1 KWS level 3 KWS level 5 KWS level 7 KWS level 9 KWS level 11 WARNING: The degree of KWS has effect on printhead life. The higher KWS is set the more protection the printhead gets against dehydration of nozzles.

  • Page 62: Updating Software And Firmware On Trojanthree

    12 Updating Software and Firmware on TrojanThree Trojanlabel is regularly updating the TrojanControl interface and the firmware for the TrojanThree printer. Each time when a new update is available a newsletter or a technical bulletin is sent out to partners.

  • Page 63: Offline Update

    12.2 Offline Update • The actual offline updater package can always be downloaded from Trojanlabel extranet site or acquired from the local Trojanlabel dealer. • Copy and unzip the updater package on a user PC which is connected to the same network as the TrojanThree printer.
  • Page 64 • Type the update URL into HOME-> Settings…-> ’Alternate update URL’ field and press save button: Download Save Alternate URL • Press green download button. • Installation starts automatically. • Press ‘NEXT’ button when asked during the installation. TrojanThree is being updated… •...

  • Page 65: Maintenance

    13 Maintenance 13.1 Emptying the Waste Ink Bottle: • Maintenance routines which protect the printhead produce some waste ink. This waste ink goes to the waste ink bottle. The waste ink bottle is located near at the lower right corner inside the cabinet.

  • Page 66: Replacing Micro Fiber Roller (Mfr)

    Material Safety Data Sheets (MSDS) for the Trojan ink can be downloaded from Trojanlabel extranet. 13.2 Replacing Micro Fiber Roller (MFR) The wiper roller (microfiber roller) is a wear and tear part and needs to be replaced as it wears down.
  • Page 67 Rubber gloves Lint-Free cloth 1. Open lid on top of the print engine: TrojanThree User Guide Page | 66...
  • Page 68 2. Press Home Maintenance Module button in TrojanThree -> Maintenance menu to gain access to the wiper module: TrojanThree User Guide Page | 67...
  • Page 69 3. Detach and remove the used micro fiber roller: Pull the micro fiber roller out from under the plastic latch Micro fiber roller out. On the right side where there is a gear mounted to the micro fiber roller, just lift out the gear from the wiper motor gear house.
  • Page 70 4. Install new wiper roller: Fit the gear on the right end of the micro fiber roller onto the proper place from above. The gear has to fit to the gear of the wiper motor. Push the axis of the micro fiber roller under the plastic latch until it clicks onto the right place. TrojanThree User Guide Page | 69...

  • Page 71: Manual Printhead Wiping

    5. Press Install Maintenance Module button at TrojanThree -> Maintenance menu to move maintenance tray back into the proper position. 13.3 Manual Printhead Wiping The manual printhead wipe has 3 functions, these are: • Cleans printhead nozzle surface from waste ink, dust, debris, particles. •...
  • Page 72 1. Open lid on top of the print engine: 2. For manual wet wiping the printhead, the printhead has to be removed from the TrojanThree. Press Release Printhead button at TrojanThree -> Maintenance menu to de-prime the printhead and open the printhead latch. TrojanThree User Guide Page | 71...
  • Page 73 3. Remove the printhead from the TrojanThree and put in on a table 4. Make a piece of lint-free cloth wet with De-Ionized or Distilled water 5. Wipe the printhead nozzles with the wet cloth with a single move from one end to the other. Never wipe back and forth because that can transfer waste ink back to the nozzles causing color contamination Wiping printhead from one side to the other with a single move...
  • Page 74 Printhead clean and wiped 6. Install the cleaned printhead back and close the printhead latch 7. Press Insert Printhead button at TrojanThree -> Maintenance menu to prime the printhead with ink. This process may take up to 5 minutes. 8. Once system state goes back to online, then TrojanThree is ready to print TrojanThree User Guide Page | 73...

  • Page 75: Troubleshooting

    14 Troubleshooting 14.1 Error States List Problem Solution Error display: A) The gap size may be too short. Adjust “Gap Size” in media “Paperpath Missed TOF Error” settings in case Tof mode is continuous (LP version only) B) Make sure the label size is set correctly in the driver when sending a job.
  • Page 76 Error display: The maintenance tray movement is blocked physically or “Maintenance Jam” maintenance tray’s position is not calibrated or unknown to the system. A) Use the red button at HOME ->Settings->Network menu to restart the user interface and print engine. When the print engine is starting up it does a maintenance tray calibration.

  • Page 77: Error Messages On Screen

    14.2 Error Messages on Screen The TrojanThree has an interactive user interface called TrojanControl. Whenever an error state occurs, depending on the error state some on screen instructions can appear offering information about the error and also selection of user actions to solve the issue and to cancel or resume the actual print job. Example: Missed TOF Error occurred Bag Out error One of the ink tanks run out of ink during printing.
  • Page 78 Ink Transfer failure When a crossed out arrow appears in status bar. This means that pump cannot bring the ink up from the ink tank to the reservoir tank. Can be pump motor failure, like encoder wheel on motor is filthy or pump stuck, electrical failure etc.

  • Page 79: Firmware Update Failure

    (TrojanThree) tab will appear on screen. If for some reason the second recovery attempt fails, please contact Trojanlabel support. Firmware update text changed to red. TrojanThree User Guide...

  • Page 80: Trojan3 Op Guidelines For Printing Bags

    15 Trojan3 OP guidelines for printing bags The Trojan3 is a versatile all-purpose over printer and is designed to print on most absorbing surfaces. It is ideal for many types of applications such as many type of envelopes, card board boxes, paper bags and wooden plates.

  • Page 81: Typical Issues

    16 Typical issues 16.1 Uneven surfaces (Distance between substrate and print head) The T3 is designed as on all purpose over printer for printing on absorbing materials, such as paper, inkjet coated substrates (PP, PE etc.) and even some wooden materials. Besides the requirement of an absorbing surface, it is also important that the print surface is as even as possible.

  • Page 82: Feeding Paper Bags

    17 Feeding paper bags 17.1 Challenging areas The challenge when printing on bags is the uneven surfaces, most commonly experienced in two areas: 17.1.1 Were the handles are attached to the bag See photo below 17.1.2 Were the bottom of the bag bends around creating a bump on the printing surface See photo below 17.2 Optimal print zone Because of the issues described above, the optimal zones for printing is outside those two areas.
  • Page 83 3.2 Optimal print zone TrojanThree User Guide Page | 82...

  • Page 84: Direction Of Feeding

    17.3 Direction of feeding 17.3.1 Correct direction of feeding The recommended direction of feeding bags is sideways, ensuring that in particular the handles are outside the printing zone, i.e. not beneath the print head. Handles can face in both left or right of print direction.

  • Page 85: Printing In The Optimal Print Zone (Back Side)

    17.4.1 Printing in the optimal print zone (back side) When printing only in the optimal print zone, our experience is that the bag can be left folded as is. As long as the folded bottom is flat. If the bottom has a tendency to pop up, then this must be pressed in place in order for it not to pop up and touch the print head.

  • Page 86: Preparations Before Starting A Print Job

    18 Preparations before starting a print job A general challenge for printing bags is the uneven surfaces that may touch the print head area and transfer ink back to the substrate. Most commonly it is not the actual nozzles that are touched but the areas before and after the nozzles.

  • Page 87: Wipe Print Head Before Start Of Job

    18.2 Wipe print head before start of job When printing on bags or other uneven substrates it is recommended to wipe the print head manually before a print job. This is to ensure that all residual ink is removed before start of job. Note that this will require that the cap and roller is in a good condition as explained in chapter 18.1.

  • Page 88: Recommendations And Expectations

    For very detailed artwork we see enhanced quality after applying a clear coating before printing. The coating can be purchased at Trojanlabel. 19.5 Avoid Vacuum active under print head It is important not to have vacuum suction directly under the print head, as this can dry out the print head.

  • Page 89: Examples

    20 Examples 20.1 Printing in print zone Figure 7 Print zone Figure 8 Small printzone due to large handles and bottom TrojanThree User Guide Page | 88...

  • Page 90: Printing On Bags Without Bottom Fold

    20.2 Printing on bags without bottom fold Figure 9 Bottomless bags 20.3 Printing in print zone, smear from dirty Print head TrojanThree User Guide Page | 89...

  • Page 91: Print On The Bottom Bend Touching Print Head

    20.4 Print on the bottom bend touching Print head 20.5 Print over bottom bump, good scenario In the above case we are printing over the bump, but due to the relatively thin paper, there is no issues with smearing. TrojanThree User Guide Page | 90...

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