For full details on how to troubleshoot this error, see Troubleshooting error 02317, The laser beam was not detected.

If you return or store a TH2 head, you must drain the coolant first. If you do not, the coolant may freeze during transport, pressure may build during storage, or corrosion may occur during storage. All these situations cause internal leaks and cracks in the head cooling system.

This is particularly critical for thermal 2.7 heads because the laser diode is cooled directly, and therefore can be permanently damaged by any expansion in the cooling system.

The draining kit (part number 50-2465A) is included with every head, so there is no need to order any parts in advance. For the full procedure, see Draining the Coolant from a TH1 or TH2 Head.
See also: Draining and Repacking a Thermal 2 Head for Shipping.

The TH2 final window cannot be replaced in the field. If the window is cracked or scratched, or if the coating is coming off, you must replace the head.

For full details, see Thermal 2 Window Cleaning Procedure.

For details on how to troubleshoot this problem, see Humidity and oil in the air supply causes banding and error 02334.

Always use controlled releases to install version 1.07b head firmware. This ensures that the firmware is installed only on devices that support it.

Six new features were added, and seven problems were fixed. The highlights include:

• A secondary BBS Algorithm was added.
• Redirection can no longer be disabled.
• Hotlink diagnostics were fixed and are now available.
• Stuck shutter detection was added.

For full details on these and other features, see the 1.07b head firmware release notes, posted on the TH2 firmware summary page.

The Exposure Head Request form (EHR) has been updated. Please delete any locally-stored copies.

See the Exposure head request (EHR) form.

If you have a new artifact, please forward plates and/or pictures, a description of the problem, a detailed solution, and any other information to Maureen Munroe.

See the Artifact gallery.

Make sure you replace the coolant connectors during your next visit. To complete this FCO you need to order the following parts:

• 512-00325A BOM (coolant fitting upgrade kit)
• 50-2465A BOM (coolant draining kit)

You will also need the following procedures:

• Draining the Coolant from a TH1 or TH2 Head
• Replacing the Coolant Connectors on a TH2 head

For full details, see the FCOs page.

Always use controlled releases to install vesion 1.06 head firmware. This ensures that the firmware is installed only on devices that support it.

This release adds greater control of focus laser power for sensitive media.

The 1.06 head firmware is posted on the TH2 firmware summary page.

If you experience intermittent image corruption (that may be temporarily resolved by resetting the device), use the following troubleshooting item: Image corruption occurs intermittently.

The following documents have been updated to include the TH3 head:

• Adjusting Tilt on a Thermal Head
• How to check tilt on a thermal head

Thermal 2.5 heads with a serial number of T02924 or higher are being shipped with the laser diode temperature set to 20°C. Internal changes to the head support this lower temperature, which should increase the life of the laser.

If the head is unable to maintain the lower temperature, you will see one of the following errors:

• [02311] The diode is over-temperature
• [02319] The laser diode is over-temperature

For troubleshooting details, see TH2.5 head laser diode is over temperature [Errors 02311 and 02319], available on the Troubleshooting page or on Errors by number.

For details on how to troubleshoot error 05217, see Error 02517 "A data overflow has been detected" occurs when the hotlink cable is disconnected, available on the Troubleshooting page or on Errors by number.

Starting May 9, RMA heads will be loaded with head firmware version 1.05d. Existing inventory will not be upgraded and will have version 1.01i.

Make sure you load device firmware that is compatible with the head firmware. To check the head firmware version type:

• MCE: >> redirect enable
TH2> ver
TH2> redirect disable
• GMCE: >>head version

For details see the controlled releases page.

The Exposure Head Request form (EHR) has been updated and is now a controlled document. Please delete any locally-stored copies and link to the form on TechPlanet: Exposure head request (EHR) form.

Follow the correct procedure to get authorization and order a head ( Ordering a replacement head ).

See also Thermal head experts authorized for head replacements.

For details on how to troubleshoot this artifact, see One-pixel horizontal artifact when using command line plots from Service Shell with GMCE, available on the Troubleshooting page under Artifacts.

For details on how to troubleshoot error 02334, see Errors by number, 02334 or Error 02334 occurs when the shutter opens or closes, available on the Troubleshooting page.

Find the Installing a thermal 2 head on a Magnus 800 platesetter document on the Installation page.

A low sum or edge detect failure has several causes. For details see Troubleshooting low sum/edge detect failure (available on the Troubleshooting page ).

Use controlled releases to install v1.05d head firmware. This ensures that the firmware is installed only on devices that support it.

Implemented in this release:

• Improved error messaging
• Beam correction utility to extend head life
• Added support for high addressability heads

The v1.05d firmware is posted on the TH2 firmware summary page.

On any device using a TH2 head, if you upload the wrong file type the upgrade will fail and the head will not function. For details on how to avoid this, see Firmware upgrade fails when loading new TH2 head firmware (available on the Troubleshooting page ).

Use the artifact gallery to troubleshoot imaging artifacts. Open the gallery and click on the type of artifact that you’re dealing with.

Please send any feedback on the gallery, including any new artifacts, to TechPlanet feedback. Send any plate samples to your PSS.

Peruse the Artifact gallery or access it from the Thermal 2 Troubleshooting page.

Increased media sensitivity on V- and X-speed devices is normal. Check the CTP media database for the correct drum speed and estimated power setting, then refer to the media tech note for the detailed setup procedure.

For an example, see section 6.3 of the Kodak Thermal Gold Technical Note.

Download the latest CTP Media Imaging Performance Database. For more details on media qualification and settings, see the Media site.

This script tests a range of scorr values to determine the best settings for edge leakage artifacts. Use it when troubleshooting artifacts, particularly on integrating newspaper media.

Download the script: G_MCE_Scorr_v2.spt or from the Downloads page.

When you return a head, make sure that you remove the debris nozzle, airjet bar, and any mounting hardware before you ship it. Any hardware from the debris removal system must be reinstalled on the new head.

If you encounter a head that is missing the airjet plate (TH2 head on TS NEWS), or any part of the debris removal system, order a replacement part immediately.

For part numbers, see Parts/tools.

Use the table on the Control/Settings page page as a guide when uploading TH2 head firmware.

For details on how to maintain the contrast ratio on a thermal 2 head when stroke profile is poor, see the troubleshooting item. This will often show up as banding and is more common on heads with long laser–on hours.

Note: When solving banding problems on a TH2 head, you should first optimize the hvtrim (this drives the light valve). Next, run ContvBP.spt to either confirm that bpd beamposition is 0 or to pick the new beam position value.

This item is available on the Troubleshooting page under Artifacts.

This training is strongly recommended as prerequisite review material for personnel registering for the following classroom courses on the Learning Center:

• Thermal 2 Head Advanced Troubleshooting
• Thermal 2 Head Troubleshooting and Media
• Thermal 3 Head Support

The Thermal 2 Head Refresher Training is available as a Token or a self-extracting zip file:

• Thermal 2 Head Refresher Training (Token)
• Thermal 2 Head Refresher Training (self-extracting zip file)

These files are available on the Reference page.

The new Trendsetter 800 II/NEWS MCE Thermal Head 1.7 to 2.x Upgrade Procedure was created primarily to document how to upgrade a Trendsetter 800 II-based output device with the X-speed (eXtra fast) option. However, it also applies to upgrading from a TH1.7 to a TH2 head on Trendsetter NEWS MCE-based output devices, a procedure that has not been formally documented until now.

Because this new procedure applies only to MCE-based output devices, it does not replace the existing Trendsetter NEWS TH1.7-to-TH2 Upgrade Procedure. This document has simply been renamed to Trendsetter NEWS MPE Thermal Head 1.7-to-2.x Upgrade Procedure to distinguish it from the new MCE procedure. In addition, it has been updated with the latest safety information for installing TH2 heads on MPE output devices.

Both of these documents are posted on the Procedures and Installation pages.

On all Magnus VLF devices with TH2 heads and carriages, faulty carriage bearings are causing vertical artifacts during imaging. This new troubleshooting item is posted on the Troubleshooting page.

In order to maximize head life, please consult with a thermal head expert before ordering a replacement thermal head. Field and Response Center Specialists have the latest information and troubleshooting techniques to assist you in diagnosing and optimizing a thermal head to keep it operational, or to confirm that it will need replacement.

The RC Resource Planning Group (RPG) (CAM: 1-877-788-2727) can put you in contact with a specialist, or refer to the list: Thermal head experts authorized for head replacements. This is also available from the Escalation page, under See Also.

Four new documents have been posted that will help you to troubleshoot focus errors on a thermal 2 head. For more detail, follow the links below:

• Troubleshooting TH2 focus errors: Provides detailed information on the causes and solutions for focus errors.
• Interpreting the focus learn table: Describes how to interpret the TH2 focus learn table.
• Thermal 2 head focus parameters: Describes key focus parameters (set med [x] focusmode, set med [x] focuslasermode, set foc actmode, set med [x] sd, and set foc offset).

These documents are also available from the Troubleshooting page of this site.

As of May 21st 2004, each TH2 head that passes through Production (new and RMA) will have an NVS field parameter called sys comment, which is populated with the part number and description of the head. This will help you identify the head when troubleshooting or ordering a replacement. This process will start with Thermal 2 heads, but a similar method will be implemented for TH1.x at the next firmware release.

The naming scheme consists of:
Part number | THgeneration.diode indicator | resolution | channels | screening criteria and proofing descriptor

For full details, refer to Invalid Key, which is also available from the Reference page of this site.

The part numbers for Thermal Exposure Head 2.5 are:

• 2400 dpi: 507-00134A
• 2540 dpi: 507-00132A

For more detail refer to the Overview page of this site.

The TH2 Installation Procedure for Trendsetter Platesetters has been revised with new information on setting the focus basethickness parameter and determining target error value during the head positioning procedure.
Note: If the thickness of the plate used to position the head is less than 305 microns (the maximum plate thickness supported by TS NEWS devices), the error value displayed during a head install on command should not be zero. Rather, it should be the difference between 305 and the thickness of plate used for positioning the head.
Posted on the Installation page of this site and the Trendsetter NEWS site.

When you clean the final window on a TH2 head, use the cloths included in the window cleaning kit (part number 04-0012B).

For full details on the new method, download the procedure: Thermal 2 Window Cleaning Procedure.

• To clean the final window properly, you must remove the head from the device.
• Remember to order the window cleaning kit (04-0012B). It contains everything you need to properly clean the window, including acetone.

The document is also available from the Procedures page of this site.

Thermal 2 heads do not generate any humidity-related error messages. If the humidity in the head is too high the head will continue to function until it fails (due to, for example, an electrical short).

The humidity measured in the head is expressed in Volts, so you need to calculate the relative humidity inside the head. To calculate and interpret the relative humidity inside a TH2 head, use the following document: Measuring the humidity level inside a Thermal 2 Head.

• If the head has been exposed to very high humidity conditions (80% at 30°C) for over a week, then the head should be purged for several hours before the write laser is turned on.
• For passively cooled systems, there is no humidity-related danger that can be avoided by monitoring the head's humidity sensor.
• For actively cooled systems, the reported RH should be less than 45%RH while the chiller is operating.

The document is also available from the Procedures page of this site.

When troubleshooting a possible head problem, you should first verify that the values of the head parameters are within the normal range. When you run parmcheck.spt, all the parameters are checked automatically.

Use parmcheck.spt to check the head parameters:

• Any time you troubleshoot a TH2 head
• Every time you install a TH2 head
• During Preventative Maintenance
• When you suspect that the parameters have changed

For full details on running and interpreting this script, download the procedure: Checking TH2 parameters using parmcheck.spt. It is also available from the Procedures page of this site.

When you test the shutter on a Thermal 2 head, you must follow all the steps in the procedure. If you do not, the sensor will not be properly configured and your test results will be incorrect.

Download the procedure here: Testing the shutter on a thermal 2 head or from the Procedures page of this site.

Recently, the supplier for the TH2 focus diode was replaced. The new diode is functionally equivalent, however, due to more efficient operation, the new diode requires a small change to the TH2 firmware.

All active TH2 firmware versions have been patched, so that they will work with both old and new focus diodes. The old and new firmware versions are functionally equivalent, and the fix for the new diode does not cause any changes in firmware operation.

The firmware version changes are:

Old version	New version
1.01h	1.01i
1.02	1.02b
1.03b	1.03c
1.04c	1.04d

• At existing sites running old firmware, no proactive upgrades are required.
• Any firmware upgrades in the field should use the patch versions of firmware.

Note: Using the old versions of firmware can cause TH2 error 1330: Focus laser not turning on. If you see this error message on heads running V1.01h, V1.02, V1.03b, or V1.04c, the solution is to upgrade to the replacement version of TH2 firmware.

Download the latest versions from the Firmware page.

BaseThickness is an MCE-based parameter located in the FOCUS subsystem. It is used on Trendsetter NEWS devices to determine if multiple instances of media are loaded in the same spot on the drum (double-picking).

Lotem Quantum devices do not use this parameter.

For information on how to set BaseThickness on Trendsetter News, refer to the following excerpt from the Trendsetter NEWS MCE firmware release notes:

Thermal Head 2 Install Procedure and Basethickness Parameter Setup

Proper use of the moving lens range is a basic requirement for host products to allow room for any bump tracking.

The head install procedure ensures that any plate thickness allowed by the product specification will work properly and have room for any bump tracking. NEWS devices support plates with thickness 0.2 to 0.3 mm. The head should be installed with an average error of 100 microns and the basethickness set to 305 if the plate loaded during the install is 205 microns thick. For example, if the head is installed to an error of +100 using a 205 micron thick plate, and then a 305 micron plate is loaded, there still will be 150 microns for plate bump tracking. In other words, one should NOT always do head install to 0 error.

The constraint is the equation: “BaseThickness” - “Thickness used to install head” equals “The error head was installed to”. Choose a BaseThickness value that is the maximum of the different thicknesses that are expected to be used. The head install procedure is as follows:

1. Set the BaseThickness, BT to the maximum supported by the device. In case of NEWS this value is 305.
2. Choose which thickness of plate to install the head with, IT.
3. Install the head with a target error of (BT - IT).

This occurs when the script contrastvhv.spt fails or is aborted. The script changes the hvtrim parameter to 0, and this causes stroke cal to fail. This problem may be confused with a case where the shutter is stuck open.

For a detailed solution, refer to the following troubleshooting item : Stroke cal fails and hvtrim has a value of 0.

The following sections in this troubleshooting document have been updated:

• How to Eliminate the Customer's File and Workflow: This is a new section that describes how to determine if there are issues with a customer's file or workflow.
• Check the Device: This section has added detail on detecting device-related vibration.
• Check for Tiling: The procedure for detecting tiling was refined.

Download the latest: Troubleshooting Staccato On-Plate. This is also available from the Staccato site.

Thermal 2 head firmware version 1.03b has been released, and is available on the TechPlanet Firmware page. This firmware is part of the controlled release process, and should only be installed on devices that support it. To find out which devices support V1.03b firmware, refer to the controlled releases page on TechPlanet.

V1.03b contains only minor changes from V1.02. Please refer to V1.02 documentation if upgrading from V1.01h or earlier to V1.03b. Full regression testing is not required.

The main changes in V1.03b include:

• Moving swidth, soffset, swidthn, and soffsetn from the HEAD parameter block, to the HDM parameter block. This allows you to use media with different stroke settings on the same head.
• Overdriving the focus laser during edge detection to improve repeatability and correct for poor edge profiles.
• Displaying the lens position table when focus learn fails, in addition to when it succeeds.
• Fixing the clamp shadow handling.
• Fixing mismatch errors during gapless imaging.
• Upgrading to Xilinx 0.30.

For full details, refer to the V1.03b release notes.

The Thermal 2 Planned Maintenance procedure has been published. Complete a head Planned Maintenance any time you do a device Planned Maintenance (recommended every 6 months).

For full details, refer to the Planned Maintenance procedure, available from the Maintenance page of this site.

Please download the latest version: Draining the Coolant from a TH1 or TH2 Head

Reminder: This procedure requires the coolant draining kit (50-2465A BOM). This kit is shipped with every replacement head, and can be reused.

Please download the latest version: Thermal 2 Debris Removal Nozzle Cleaning Procedure

Frequently-asked questions (FAQs) about emissions and ventilation related to imaging of thermal media have been compiled. The document is intended for both Creoites (sales and service) and customers.

Download the FAQ here: FAQ: Emissions and ventilation related to imaging of thermal media or from the Debris Removal Reference page.

There is a bug in Trendsetter NEWS MCE controlled release V2.3 that causes the Thermal 2 head error [00221] Beam-Balance: The beam-balance sensor shutter could not be closed to be generated. A workaround is available: TH2 error [00221] occurs on Trendsetter NEWS 200 with MCE controlled release V2.3.
Note that the workaround does not apply to Panorama plates larger than 885mm.

This troubleshooting item is available form the Troubleshooting page of the Trendsetter NEWS site.

This procedure has been updated to include more detailed diagnostic information.

Download this document here: Testing the shutter on a thermal 2 head or from the Procedures page of this site.

This relates to the following errors on a Lotem Quantum:

• [02321] Laser Diode: The laser diode is over-temperature ( WLP fault )
• [02325] Laser Diode: Possible coolant failure ( WLP fault )
• [02323] Laser Diode: The temperature sensor is open-circuit ( WLP fault )
• [02319] Laser Diode: The laser diode is over-temperature

If you have any of these errors, or when you use the command ldd info to check the temperature of the diode, you see the line laser temperature not available 0 C, refer to the new troubleshooting item: Troubleshooting Th2 temperature or coolant failure problems on a Lotem 800 Quantum

This is also available on the Troubleshooting page of this site.

This 5-day course provides a guided learning experience to enable quick and efficient troubleshooting of TH2 and media problems.

It integrates materials taken from the related TH2 Advanced Troubleshooting Course and the Thermal Media & Staccato Workshop. The materials were re-worked to provide a course that delivers training targeted at troubleshooting common problems starting with the symptom and guiding the student through the troubleshooting process to find the solution.

The course is intended for Creo Customer Service Engineers who have taken the Lotem Quantum training class, but who do not possess extensive experience in solving Thermal head and media problems.

The first offering is scheduled for Feb 23 to 27 in Vancouver. The course will be offered in CEM within a few months. For full details, go to the Learning Center (http://learningcenter.creo.com) and search the catalog for TH2 troubleshooting and media.

If you install a TH2 head in a Newspaper machine with MPE, please disable the power monitor parameter. Normally all TH2 heads leave the factory floor with the power monitor parameter set to true, but the MPE does not support this feature.

The following error message may appear while you're plotting:
[02318] laser diode: the laser power could not be calculated during calibration

If this occurs, use the related troubleshooting item for a solution. This has been posted to the Troubleshooting page of this site under the keyword power calibration.

To meet the demands of the Newspaper market, Creo is manufacturing TH2 heads with resolutions of 1016 and 1270 dpi. These heads have been released to Early Production.

• The 1016 and 1270 dpi heads are identical to the 1200 dpi TH2 head in almost every way, with a few different optical components that reduce the resolution to 1016 dpi or increase it to 1270 dpi.
• Both heads are capable of 23W power on plate.
• The 1016 dpi head has 192 channels (versus 224 on the 1200 & 1270 dpi). On the 1016 dpi head, because the physical size of each channel is larger, the throughput of the head is the same because the total width of the swath is the same size as the 1200 dpi head.
• The 1270 dpi head has a slightly narrower swath. This affects throughput very slightly as the imaging time is approximately 5.5% longer.

For more information, download the FAQ: Thermal 2 1016 and 1270 DPI Imaging Heads, also available from the Overview page of this site.

Two Thermal 2 scripts, currentping.spt and forceping.spt, have been updated. These scripts are dpi-dependent, and had to be updated to include the new 1270 and 1016 dpi heads. These scripts have been tested for use with Service Shell 2.5.
Download the new versions of the scripts here: Invalid Key, Invalid Key, or on the Downloads page of the Splot TechPlanet site.

Note: currentping.spt and forceping.spt are used only when the head is built or when re-pinging the actuator. This is not a common procedure and we do not expect the average field engineer will have to use these scripts.

The 1270 and 1016 dpi heads have been released to Early Production. For more information, refer to the Overview page of this site.

The following document has been updated to include information on what heads may be affected by this problem.

To summarize:

• All heads with serial number T00815 or earlier may have this problem, except for RMA heads dated February 17, 2003 or later.
• Heads with hardware problems, such as a broken laser diode cable, can also experience this problem.

If you suspect that the head you’re working on has this problem, follow the procedure included in the document

For full details, download: Troubleshooting WLP burst errors. This document is also available from the Troubleshooting page of this site.

Two new documents about LDD calibrate have been released. Download the following:

• How to Run LDD Calibrate
• Troubleshooting error 02317, The laser beam was not detected

Both documents are also available from the Troubleshooting page of this site.

Two documents have been updated. They now have a more up-to-date diagram of the Thermal 2 voltage and safety lines.

• Measuring Voltages on a TH2 head
• Th2 Voltages and safety circuitry

Several Powerpoint presentations have been posted to the Reference page of this site. They are also available on the Troubleshooting page, under their associated keywords. Download the following:

• Th2 Write Laser and LDD Calibrate: Details and Troubleshooting (Keyword: LDD Calibrate)
• TH2 Beam Balance: Details and sample graphs (Keyword: BBS)
• TH2 Head Power: Voltage Requirements and WLP Burst Errors (Keywords: Voltages, WLP burst data)
• TH2 Focus System: Detailed Info and Troubleshooting (internal errors) (Keyword: focus errors)
• TH2 Focus System: Troubleshooting (external errors) (Keyword: focus errors)

Accuracy of tilt is critical for FM jobs. When you’re installing a head or when you’re diagnosing banding on-plate, make sure that you check the tilt and adjust it if necessary.
To check the tilt (all thermal heads):

1. Image a plot 1 (3-pixel horizontal bar pattern).
2. Inspect the 3-on-3-off horizontal line section of the plate under a powerful loupe.
3. If the pixels do not line up, you have a problem with tilt. Refer to the sample below.
   

To adjust the tilt (Thermal 1.x only):

Refer to the Thermal 1 or 1.7 installation procedure for details:

• Thermal 1.0 Head Installation Procedure
• Thermal 1.7 Head Installation Procedure

Note: Tilt is not adjustable on Thermal 2 heads. Contact your regional specialist if you find a tilt problem on a Thermal 2 head. See the related troubleshooting item.

A new procedure has been posted that describes how to correctly repack a Thermal 2 head for shipping.
Note that you must always drain the coolant from a head before you pack and ship it. Refer to the following procedures for details:

• Draining the Coolant from a TH1 or TH2 Head
• Draining and Repacking a Thermal 2 Head for Shipping

New procedures have been written for setting up media, and for troubleshooting Staccato® on-plate. For full details, refer to this week's Product Support Newsletter.

• Download the latest Media Tech Notes.
• Download Troubleshooting Staccato On-Plate
• Download Troubleshooting Staccato On-Plate: Customer Checklist

Install the latest version of Splot and the latest Thermal 2 scripts using the installers available on the Splot Downloads page. Refer to the Splot home page for further details.

Note: You must upgrade to the latest version of Splot (V3.64) in order to properly run the updated scripts.

A new procedure has been posted that describes how to install a TH2 head in a Trendsetter NEWS device.

Download the document here: TH2 Installation Procedure for Trendsetter Platesetters, or from the Installation page of this site. For full information on device installation refer to Trendsetter NEWS Installation.

It is important to ensure that the final window is clean before swapping out a head because debris build-up can cause a serious reduction in both image quality and power output from the head. A high percentage of heads returned with image quality issues have not had the final window cleaned, and this costs Creo unnecessary money.

A new window/lens cleaning kit (Lens cleaning kit: 04-0012B BOM) is now available that will make lens cleaning easier. It includes:

• acetone
• several different types of cleaning swabs
• rubber gloves
• wiping clothes

Ordering tip: Because of the relatively high cost of shipping this kit, it is most cost-effective to order the kit in multiples of three.

Refer to the Lens Cleaning FAQ for more information. Also, make sure you download the latest Thermal 2 Window Cleaning Procedure.

A new listing of how to troubleshoot specific error codes has been compiled. By simply knowing the error code or the description of the error, you can now search for troubleshooting information on common errors using the new Troubleshooting by error/subsystem Index.

As well as searching by error code, you also have the option of searching by sub-system. The troubleshooting information includes a brief description of what to try as well as links to the appropriate documents and procedures.

You can also access this index from the Troubleshooting page, under Error codes.

The two scripts scnarrow.spt and soffsetn.spt are no longer required when setting up Staccato. They are listed on the Downloads page for archive purposes only.

For further details, refer to: Troubleshooting Staccato On-Plate

Legacy part numbers for Quantum (P22) and Creo Imaging (P33) heads have been posted.

For further details, refer to: Heads By Part Number.

If the Z-rod is not fully engaging the TH2 Indexing Rod, the error will saturate when moving the Z-stage back during head install on, or the Z-rod may break. There are some rare cases where, due to the tolerances of both the Z-rod and the threaded hole in the Th2 Indexing Rod, this error may occur. This can occur anytime you are installing a Thermal 2 head.

Solution: In all cases where a TH2 head is being installed or replaced, check that the Z-rod is properly engaging the TH2 Indexing Rod.

For the detailed procedure, refer to this troubleshooting item: Error saturates when moving the Z-stage back during head install on or the Z-rod breaks.. This is also available o nthe Troubleshooting page under Installation.

When ordering a thermal head, make sure you fill out the EHR form completely, including a detailed description of the problem, the number of hours on the head, and the level of Staccato® the customer is using (if applicable).
Also, please be sure to consult a Thermal PSS (or another authorizing engineer, if a PSS is unavailable) before deciding to replace the head. In cases where the problem is due to imaging artifacts, always include a plate or proof sample, and, when applicable, a Press sheet sample with the shipment.
Providing as much information as possible saves valuable time when the order is processed and increases the likelihood of us finding the cause of the failure. The future success of this product relies on the information that you provide us today.
Download the latest form here: Exposure Head Request Form.

The Thermal head escalation page on the TechPlanet has been updated. This includes:

• revisions to the escalation process
• updates to the contact names
• a list of product-specific data and sample images that must accompany an escalation to Product Development (PD)

This information will enable PD to process escalations in an efficient and timely manner.

These changes have been made in coordination with the revisions to the global escalation procedure.

Please note that the changes are not meant to deter field support staff from contacting PD support staff if they are unable to get assistance within their CSC. If you require an answer to question to facilitate better and faster service to our customers, then you should contact whatever resources are at your disposal to get that answer quickly. However, if you require a product fix or a significant amount of time from a PD resource, a formal escalation will be required.
Refer to the Escalation page for more details.

This document compares Thermal 2 and Thermal 1.x monitor commands and NVS parameters. It has been updated to reflect the NVS parameters and monitor commands that are supported by Thermal 2 firmware version 1.02+ based on Thermal 1.0 / 1.7x firmware version 1.90.
Download the document Th2 vs Th1.x Monitor Commands and NVS Parameters, or find it on the Reference page of this web site.

Head firmware version 1.02 has been posted. It is available on the Firmware Release page. It is also available from the Downloads page of this site.

Note: It is no longer recommended to simply download the latest version of firmware. Rather, upgrade all components to a controlled release version.

The following items were implemented:

• Creo Exposure Head(CEH) Interface
• support for additional focus startup sequences
• support for bidirectional imaging
• support for staggered seams
• featureless edge detect
• support for P22/P33 imaging

Refer to the V1.02 release notes for more information.

The Thermal 2 Focus System training materials are now available on TechPlanet. Download these two powerpoint presentations from the Reference page of this site.
Note that these presentations will be periodically updated.

The Thermal 2 factory settings are now available on TechPlanet. Make sure that you always refer to the highest numbered NVSDump sub-directory for the most up-to-date settings.

View them via the Control/Settings page,or directly via the Thermal 2 Config Files.

If any of the following errors appear:

• [02327] Laser Diode: Possible safety fault (WLP fault)
• [02330] The WLP burst data is not available
• [03553] Safety loop fault has been detected
• [03573] A safety loop fault is preventing normal operation

Refer to the following procedure: Safety faults and WLP burst error

For more information on finding the correct drum position, refer to the following:

• Finding the Correct Drum Position for Edge Detection (Lotem Quantum) (posted to the Procedures page, as well as to the Troubleshooting page, under Quantum)
• EdgeGrooveQuantum800.spt (posted on the Downloads page of the Splot TechPlanet site)
• EdgeGrooveQuantum script help (posted on the Reference page of the Splot TechPlanet site)

The information published in the Jan 10 PSN has ben captured as a techncial bulletin: Do Not Use wpowern when setting up Staccato on a Thermal 2 Head. It has been posted to the Reference page, as well as to the Troubleshooting page, under Staccato.

Make sure you download the latest version of the pixel chopper. Download it here: Pixel Chopping Calculator or from the Troubleshooting page of this site.

The Troubleshooting Staccato On-Plate document has been updated to include more explanation on the differences between AM and FM screens, and to provide instructions for MCE- and MPE-based devices.
Download it from the Procedures page of this site.

If the following error messages appears while you're plotting: [02318] laser diode: the laser power could not be calculated during calibration , refer to the related troubleshooting item for a solution. This has been posted to the Troubleshooting page of this site.

The Thermal 2 head part numbers have been posted to the Parts/tools page of this site.

When setting up Staccato with a Thermal 2 head, do not use the parameter wpowern (narrow mode power). This applies to all Thermal 2 heads that are being set up for Staccato.
Background
Unlike Thermal 1.7 heads, Thermal 2 heads do not need to use narrow mode. Therefore you should not use wpowern (power setting for narrow mode), even though this parameter still appears in the host (MPE and MCE) under hdm (head dependant media).
In older versions of MPE and MCE (including MCE version 1.20), if you change the wpowern parameter, the Thermal 2 head will use this power value. If this power value is incorrect, it can cause problems such as banding, or problems setting up the media.
In more recent versions of the MPE this problem will not occur, since changing wpower will immediately upgrade wpowern (narrow mode power).
For further information, contact Kyle Good.

The surface of the final window is extremely sensitive. Improper cleaning and handling can permanently damage the lens. Make sure you follow the correct cleaning procedure, as described in the Thermal 2 Window Cleaning Procedure, available from the Procedures page.
Key cleaning steps:

• Always remove the head from the carriage
• Always use a new swab for each wipe (make sure that you have at least 10 swabs with you)
• Never scrub
• Never wipe in a circular motion
• Read and understand the procedure BEFORE you start cleaning

This troubleshooting item provides commands for disabling verbose. Find it under Error/System Messages on the Lotem 800 Quantum Troubleshooting page.

Accessing thermal 2 head parameters in MCE: Access thermal 2 head parameters using a new command syntax. Find this item on the Lotem 800 Quantum Troubleshooting page under firmware.

A new procedure has been posted that details how to connect remotely to a device with a Th2 head and Brisque or Prinergy. Refer to the following documents:
- Invalid Key
- Invalid Key
Find both procedures on the Procedures page.

In some cases this error may occur because vbs (verbose) is enabled. If this is the case, disable verbose using the following commands:
QUANTUM>> redirect enable
TH2>> vbs list
This will show you if any subsystems are vbs-enabled. If they are, type:
TH2>> vbs disable all
QUANTUM>> redirect disable
The underlying cause of this behavior is being investigated. For further information about this issue contact Iris Mordan.

Refer to the following procedure: Creating Series with Workstation Plots, or download it from the Troubleshooting page.

For tips on how to troubleshoot Staccato, refer to the following document: Troubleshooting Staccato On-Plate, or download it from the Troubleshooting page.

The P33 Creo Thermal Imaging head replaces the discontinued Entry Imaging head. P33 heads are available in both Thermal 1.x and Thermal 2 formats. All Entry Imaging heads have already been upgraded.

• To find out how to differentiate a P33 head from a SQUAREspot® head, as well as to learn the differences between the two, refer to the following document: P33 Kodak Thermal Imaging Head
• Refer to the P33 page for more information.

A new troubleshooting flowchart has been posted to the Thermal 2 Troubleshooting page, along with several new troubleshooting-related procedures. Use the flowchart to guide you through troubleshooting a TH2 head.
Note that the content is still under development. If you're looking for information that is not yet in the flowchart, please contact Kyle Good.

For details on installing a debris removal nozzle on a Th2 head, download the following document: TH2 Debris Removal Nozzle Installation Guide , or find it on the Installation page of this web site.

A new reference document has been posted that compares Thermal 2 and Thermal 1.x monitor commands and NVS parameters. Download the document Th2 vs Th1.x Monitor Commands and NVS Parameters , or find it on the Reference page of this web site.

The first Controlled Release CDs are now available for a number of output devices. A Controlled Release is a package of software/firmware components that have been tested for compatibility with each other and with the device hardware. All machines should be upgraded to the latest controlled release version according to the priority of the controlled release ECO. Thermal 2 firmware is included in the controlled release for Trendsetter NEWS. For details, refer to the Control/Settings page of the All CTP Devices website.

Refer to this week's Product Support News or the Splot Homepage for more detail.
Note: You must upgrade to the latest version of Splot (V3.64) in order to properly run the updated scripts.

Although the EH.PWR signal is present on all heads produced now, there are several hundred in the field that do not have this signal. On some systems, the absence of this signal will cause a flag, such as Exposure Head Power, to be asserted. This flag should be masked.
Refer to the new troubleshooting item for more information.

Thermal 2 heads will no longer be shipped with a whisker jet. All replacement 1200 dpi heads now have a label reminding the Field Service Engineer to reuse the whisker jet from the old head.
Note: New 1200 dpi NEWS heads will have the whisker jet installed during integration (2540 dpi and 2400 dpi heads use the debris removal nozzle and do not need a whisker jet).

A new troubleshooting procedure has been posted to the Lotem Quantum site: Th2 Command nvs dump diff produces error message 'Invalid Parameter'. Use the command QUANTUM>>prm diff instead for devices using MCE firmware version 1.20.03 and later. Follow this link, or find it at the Thermal 2 Troubleshooting page.

The head draining kit (PN 50-2465A) is now included with every thermal 2 head shipment. Keep this reusable kit either with the head or in your tool kit. Note that these kits can also be used to drain Thermal 1.x heads.

Remember that you must always drain the coolant from the head prior to shipping. Refer to the Draining the Coolant from a TH1 or TH2 Head procedure for more information.

Electro Static Discharge (ESD) has been responsible for an increasing number of preventable head failures. You must ensure that you are properly grounded when handling thermal heads, power supplies, or any of the electronics in the devices. Also, you must have your static straps periodically tested or replaced to ensure they are functioning properly. Remember that the effects of ESD are not always immediate and are not detectable until the failure occurs.

It is important to guard against ESD when removing failed heads because these heads are sent for repair and refurbishment and are eventually sent back into production. Many of the problems that these heads can experience are a result of previous damage from improper handling.

Always ensure that you are properly grounded when handling thermal heads, power supplies, or any of the electronics in the devices.

Firmware version 1.01f has been posted. Refer to the Downloads page for more information, or download it directly from the Firmware Release page. Refer to the release notes for more information.

Note that Splot has been relocated to: TechPlanet Home>Output>Service Tools>Splot. Make sure you update your bookmarks! See also Where to find Splot and Service Shell

Performance specifications for 1200dpi, 2400/2540dpi, and 3200dpi have been posted to the Overview page. Note that these are for internal use only and are not suitable for release to external customers.

• TH2 1200dpi Performance Specification
• TH2 2400/2540dpi Performance Specification
• TH2 3200dpi Performance Specification

Firmware version 1.01c has been posted to the TechPlanet. Download it from the Firmware section of the Downloads page.
CAUTION: This release must not be used with heads that have Control Board 2 (use the >>ver command to determine the head's board number). Refer to today's PSU (Vol.6 No.3) for more detail.

Two new simulators have been posted to the Downloads page.

Where to find Splot and Service Shell

This site has been restructured to fit TechPlanet’s common navigation. Please take a few moments to familiarize yourself with the new structure. If you have any questions or comments about the navigation, please email Dina Davidson.

A new procedure has been posted that describes how to upgrade firmware on a Lotem Quantum using Service Shell. Download the following procedure: Invalid Key), available from the Procedures page.