New in ColorProof 5.17

Version 5.17.1.298 - May 5, 2026

New proof standards for Epson SureColor SC-P5300
This version includes new profiles for the Epson SureColor SC-P5300 proofer with calibration set “EPSON Driver - Photo Black - 1440 x 1440 dpi - High Quality".

Resolved issues
This version provides higher stability and fixes the following bugs: 

• Upgrade issue – Technical error at start
  In some cases, ColorProof could not be started after the upgrade to version 5.17.1.278.
  Error message: “A technical error occurred”
• Dotproof not possible
  Dotproof jobs could not be processed.
  Error in ColorProof: “Tcp socket error 0 Unknown error”
  Error on the printer display: “An error occurred. Turn the device off and back on again. If this occurs again, contact Epson support.”
• Jobticket – Rotation not applied correctly
  Jobticket hotfolders with nesting and the option to rotate to portrait were not rotated correctly.
• Incorrect PDF interpretation
  Some PDFs were not interpreted correctly by ColorProof, which could result in a missing channel.
• Missing job preview
  In some cases, the job preview image was not displayed correctly.
• OpenColor jobs using spot color defaults from the PDF alternate color space
  For OpenColor jobs that used “Spot Color Defaults from PDF Alternate Color Space”, the profile was not calculated automatically. The job was processed and the OpenColor profile was created only after the job was opened and “Print” was clicked.
• Job import failed
  Some jobs could not be imported into ColorProof.
  Error message: “Profile (…) is not a valid OpenColor Contone Profile”
• ColorCard - "Measure & Improve" functionality does not work
  ColorCard configurations with the activated option “Measure & Improve Cards automatically” were unable to generate jobs. The processing was cancelled.
  Error message: “Object reference not set to an instance of an object”
• Calibration with FD9 not possible
  Manual calibration with the Konica Minolta MYIRO-9 (FD-9) failed during chart measurement.
  Error message: “SDK Error”
• Remote Calibration Wizard – Unable to connect using host name
  The Remote Calibration Wizard could connect to ColorProof using the IP address, but not using the host name.

Version 5.17.1.278 - March 26, 2026

Important - Firewall update required: This version updates how certain GMG services connect to your network to improve security and reliability. As announced in last year’s SupportNews, you need to update your firewall configuration to ensure uninterrupted access to product updates, web-based installers, ColorProof GO, and ColorCard. For details and the current host/port list, see:  Firewall configuration: List of required ports and host names (download the configuration list). If you haven't received our Support Newsletter, please subscribe via our website, or get in touch with our Support Team. 

Support for Epson SureColor SC-P7300 / P9300
GMG ColorProof now supports Epson SureColor SC-P7300 and SC-9300 printers using the calibration set GMG Driver - 9c - Photo Black - 120x1200 dpi, for the following proofing conditions:

New calibration sets for Epson SureColor SC-S9100 Jetcomp Proofing Media
GMG ColorProof now includes the following calibration sets for the printer Epson SureColor SC-S9100:

Proxy support without Connector
ColorProof GO and ColorCard now support working behind a proxy without requiring the ColorProof GO Connector. This improvement is enabled by the upgrade to .NET 8, which provides built-in proxy detection and usage (based on the operating system’s proxy settings).

Resolved issues
This version provides higher stability and fixes the following bugs: 

• Job Ticket Hotfolder – DB3 gradation curve not applied
  Gradation curves that were defined in the DB3 spot color database were not applied in jobs processed over a Job Ticket Hotfolder.
• Hotfolder – Job processing issue
  ColorProof did not process jobs if a hotfolder was deleted. Opening and saving another hotfolder was required to process files again.
• Channel mapping rule set – Filter
  Using the filter in the channel mapping rule set led to deletion of the unfiltered rules. 
• Margins issue
  In some cases, the values for the margins in a manual job could not be changed. In other cases, hotfolder jobs ran into wrong error messages, like: Error: “Job Preview: Image(s) outside printable area “, even though the image was placed well within the printable area.
• Smart Hotfolder – Loss of channel mapping rules after update
  Smart Hotfolder rules were lost after upgrading ColorProof 5.17.0.49 to 5.17.0.69.
• Manual Job Manager – Preview
  In some cases there was no preview in the Manual Job Manager.
• Spot Color Defaults from PDF Alternate Color Space
  The activated check box ‘Spot Color Defaults from PDF Alternate Color Space’ in the general settings got deactivated after restarting ColorProof.
• Danish/Finnish OS – Update error
  ColorProof 5.16 could not be updated to 5.17 on some Danish and Finnish operating systems.
  Error message: “A technical error occurred”
• UI performance
  The ColorProof UI reacted slower on some systems with an SQLite database compared to the previous SQ CE database.
• OpenColor – Published static profiles with missing spot colors
  OpenColor jobs could not be printed if the published profile did not contain all required spot colors. ColorProof failed to apply DB3 values for the missing channels. This issue did not occur when publishing the entire project in OpenColor, instead of only the static profile. The fix requires the updated versions of ColorProof 5.17.1 and OpenColor 3.4.
  Error message: “Error initializing OpenColor profile creation”
• OpenColor – MXD jobs could not be sent to remote site
  Remote proofing was not possible with jobs containing an MXD profile. 
  Error message: “Archive could not be created” in the menu: System > Remote proofing > File Upload

• GMG ProofPaper Matte 140 – Missing PANTONE solid uncoated V5
  The spot color set PANTONE solid uncoated V5 for the GMG ProofPaper Matte 140 was shown in the ColorProof database, but contained no entries.

   

Version 5.17.0.83 - October 9, 2025

New proof standards for Epson SureColor SC-P7500 and 9500 
This version includes new profiles for Epson printers of the “SureColor SC-Px500” series with calibration set “GMG Driver – 11c – Photo Black – 1200 × 1200 dpi.”

New for "GMG ProofMedia premium semimatte 250":

• PSO Coated NPscreen (43L)
• PSO Coated v2 Glossy Laminate (50L)
• PSO Coated v2 Matte Laminate (49L)
• SWOP 2013 C3 (CRPC 5)
• SWOP 2013 C5
• SWOP Groundwood (#5)
• SWOP Publication Sheet (#3)

New for "GMG ProofMedia premium gloss 250":

• PSO Coated NPscreen (43L)
• PSO Coated v2 Glossy Laminate (50L)
   

Version 5.17.0.69 - September 15, 2025

Resolved issues
This version provides higher stability and fixes the following bugs: 

• Dynamic profiling errors
  Some OpenColor jobs were aborted with one of the following messages and could not be printed. Please install at least ColorProof 5.17.0.69 and OpenColor 3.3.0.8 to fix this issue.
  Error messages:
  • “OpenColor service”
  • “Error initializing printer queue”
  • “Error HRESULT E-FAIL has been returned from a call to a COM component”
  • “Color Management > Proof output: output parameters cannot be read from profile (…)\mcppreview1914462172.mxn”
• Wrong margins
  The right margin in some ColorProof jobs was wrong and could not be adjusted.
   

Version 5.17.0.49 - August 18, 2025

Epson SC-S9100 – Expanded color gamut for packaging proofs and prototypes
GMG ColorProof now supports the Epson SureColor SC-S9100, a high-performance printer optimized for packaging proofs and prototypes. With its 11-color UltraChrome GS3 ink system, including green ink, it delivers an extended color gamut for precise and vibrant results. The SC-S9100 is specifically engineered for printing with white on transparent and metallic films, ensuring consistent color reproduction even in the most demanding packaging applications. The Calibration Creation Wizard enables custom calibration sets and output conditions for GMG OpenColor 3.3 and later. For a complete list of supported print modes and proof media, please visit Supported proof printers, proof media, and print modes.

Control the UV lamp power for Roland MG, LG, and MO printers
You can now adjust the UV lamp intensity for Roland printers of the MG, LG, and MO series. This flexible yet precise control enables optimal print results even on media where the standard lamp intensity would normally be too high. Additionally, this feature opens up new possibilities for decoration techniques where curing the ink is not desired. For example, you can now use varnish ink as an adhesive to apply cold foils (e.g., silver or metallic). The UV lamp intensity setting can be found under Printer properties > Job Defaults > Job Default Settings > UV Lamp Irradiation Intensity (%).

Resolved issues
This version provides higher stability and fixes the following bugs:

• Technical error after Update
  In isolated cases, a technical error occurred after updating to ColorProof 5.17.0.33.
  Error message: "A technical error has occured."
• Failed proof verification with Epson SC-Px500
  After printing and measuring a job that included a 4-row image label for proof verification, no results were printed, and the job failed with an error.
  Error message: "Object reference not set to an instance of an object."
• Failed email notifications
  Some systems experienced problems sending system notifications and remote proofing notifications via email

Version 5.17 - July 24, 2025

Database upgrade to SQLite – Faster, modern, and future-proof
GMG ColorProof now uses SQLite as its new database technology, replacing SQL Compact. This architectural upgrade ensures long-term compatibility with modern operating systems and development environments while noticeably boosting the overall performance. You’ll benefit from a more responsive user interface, especially in complex workflows or power-user environments. The switch to SQLite lays the groundwork for future developments and makes daily use faster and smoother.

Epson SC-P5300 – High-quality proofing with 17" support
GMG ColorProof now supports the compact Epson SureColor SC-P5300 printer, delivering precise and reliable 17” proofs in smaller production setups such as design studios and agencies. With a resolution of 1440dpi, users can print high-quality contone proofs on the following GMG ProofMedia:

• GMG ProofMedia premium semimatte 250
• GMG ProofMedia premium gloss 250
• GMG ProofMedia premium OBA semimatte 250
• GMG ProofMedia studio OBA semimatte 200

Please note that an external measurement device is required for calibration and proof verification, as the Epson SC-P5300 does not feature an internal measuring device. For a complete list of supported print modes and proof media, please visit Supported proof printers, proof media, and print modes.

Epson SC-P20500 – High-performance proofing for large-format prints
GMG ColorProof now supports the Epson SureColor SC-P20500, a high-performance solution designed for large-format proofing. With its 64” printing width, this printer is ideal for stand proofing and imposition proofing with full press sheet simulation. With a resolution of 1200 dpi, users can print high quality contone proofs on the following GMG ProofMedia.

• GMG ProofMedia premium semimatte 250
• GMG ProofMedia premium gloss 250
• GMG ProofMedia premium OBA semimatte 250
• GMG ProofMedia studio OBA semimatte 200
• GMG ProofMedia studio OBA matte 150

Please note that the Epson SC-P20500 does not feature an integrated spectrophotometer. For calibration and proof verification, an external measurement device is required. For a complete list of supported print modes and proof media, please visit Supported proof printers, proof media, and print modes.

Roland TrueVIS LG – Fast prototyping with extended color gamut
GMG ColorProof now supports the new Roland TrueVIS LG series, featuring dual print heads, an integrated cutting unit, and extended UV ink sets. The following ink sets can be used with our applications:

• Eight colors: CMYK, Gloss, White, Orange, Red
• Seven colors: CMYK, Gloss, White, Red + Primer

This series offers a powerful solution for fast, precise, and super-realistic prototype proofing as well as small-run production. Primer and ink can now be printed within a single job, and we also implemented a new print mode that creates embossing effects with varnish automatically. The Calibration Creation Wizard allows to create custom calibration sets and output conditions for GMG OpenColor 3.3 and later, ensuring reliable and consistent color reproduction across various substrates.
For further information, please visit Supported proof printers, proof media, and print modes.

Roland VersaOBJECT MO – Compact direct-to-object proofing with extended color gamut
GMG ColorProof supports the new Roland VersaOBJECT MO series, featuring compact UV printers ideal for object proofing and small batch production. These versatile printers support both 2D and 3D applications, enabling printing on a variety of substrates such as paper, wood, plastic, and other unique materials.
Users can choose between different print modes, including a special rotation mode and a mode that automatically creates embossing effects with varnish. Also to be highlighted is that primer and ink can be printed within a single job. The Calibration Creation Wizard enables custom calibration sets and output conditions for GMG OpenColor 3.3 and later, ensuring reliable and consistent color reproduction across different materials. For further information, please visit Supported proof printers, proof media, and print modes.

Enhanced Roland TrueVIS MG series support
This update extends support for the Roland TrueVIS MG series. You can now use Primer and ink within a single job and also benefit from a new print mode that creates embossing effects with varnish automatically. These enhancements help you produce realistic packaging mockups more easily, proof directly on original substrates like metallic or transparent films, and manage small production runs with greater flexibility. The result: faster turnaround times, lower prototyping costs, and more efficiency for your custom packaging and campaigns. For a complete list of supported print modes and proof media, please visit Supported proof printers, proof media, and print modes.

End of service life (EOL): X-Rite i1 Pro 2
We hereby announce the end of service life for the X-Rite i1 Pro 2 series. Support for these devices via service hotline, email, or ticket system can therefore no longer be guaranteed. However, the drivers remain included in GMG products. See also: Supported measuring devices across GMG products

Resolved issues
This version provides higher stability and fixes the following bugs:

• Layer printing failure with Roland VersaObject CO-300i
  Layer printing on the Roland VersaObject CO-300i did not work as intended. Instead of being printed on top of each other, the layers were printed sequentially.
• Workflow settings – "Save & Close" button greyed out
  After importing custom filter settings, the "Save & Close" button in the workflow settings became unavailable and appeared greyed out.
• Update notification appearing behind the main window
  After snoozing an update notification with the "Not now" option, the subsequent notification appeared behind the main ColorProof window and was inaccessible to the user.
• Jobticket processing – failing MX4-based remote jobs
  Jobticket hotfolders that had an OpenColor standard set as the fallback proof standard in the workflow settings were unable to process MX4-based remote jobs.
• Job import failures
  Jobs failed to import if the linked calibration had already been imported into the ColorProof database. Additionally, a clear error message was missing.