RISO’s newly announced ComColor GN series puts a practical production question back in focus: what happens after a high-speed digital printer delivers its sheets? A company announcement carried by ANTARA on October 23, 2026 describes the flagship GN9830 as a 180-page-per-minute color inkjet printer. For book printers and commercial print businesses, the useful development is not simply the headline speed, but the relationship between heatless printing, paper handling and downstream finishing.

The series targets applications including transactional documents, manuals and envelope mailing through modular options. It is not a dedicated rigid-box printer or a complete book manufacturing system. Its relevance to Kylin’s readership is the upstream capacity it can introduce into selected print-and-finish workflows, and the need to assess finished-product output rather than isolated machine ratings.

What the RISO ComColor GN Launch Adds

RISO’s official product page lists two models: the GN9830 at 180 ppm and the GN7630 at 160 ppm. Both use a line-type inkjet system with oil-based pigment inks in cyan, magenta, yellow, black and gray. Stationary printheads work with a continuous paper transport path, rather than a scanning carriage moving across each sheet.

The announcement describes reformulated inks and refined printheads intended to improve color reproduction, barcode clarity and fine text. These are manufacturer claims, not independent comparative test results. Buyers should inspect representative customer files, especially where small text, image detail or brand colors determine acceptance.

Heatless Printing Is a Workflow Feature

Unlike toner systems that use heat and pressure for fusing, RISO describes a heatless inkjet process. The company says avoiding this heat helps keep sheets flat and supports duplex transport and post-print handling, including sorting, stapling and booklet production.

That does not establish universal freedom from curl or immediate compatibility with every adhesive and finishing method. Paper grade, coverage, storage conditions and the selected finishing equipment still matter. A useful trial follows the printed sheet through the actual production sequence, not just the printer’s output tray.

Read the 180 ppm Specification Carefully

The GN9830’s highest listed speed applies to A4 or Letter long-edge feed. RISO’s specification notes refer to plain or recycled 85 gsm paper and standard density settings. Connected optional output equipment can change continuous speed. Format and feed orientation also affect the published figures.

These figures are published machine specifications, not guaranteed sustained production on every job. Maximum supported sheet dimensions are also different from printable area: RISO lists a standard-tray maximum of 340 x 550 mm and a printable area of 314 x 548 mm.

Pages per Minute Are Not Finished Books per Minute

A duplex A4 sheet carries two printed pages, explaining why 90 sheets per minute is presented as 180 ppm. Neither number measures assembled books. Imposition, blank pages, trimming, collation and binding determine how many accepted finished products a workflow can deliver.

For illustration only, a job consuming 20 duplex A4 sheets per finished item would have a theoretical printing limit of 4.5 items per minute at 90 sheets per minute. This calculation excludes setup, replenishment, spoilage and downstream losses. It is not a RISO book-output claim or a production forecast.

Three Implications for Short-Run Print Businesses

1. Finishing Capacity Needs the Same Production Boundary

Faster sheet production can create work in progress if cutting, folding or binding cannot keep pace. Compare stages using the same job and finished-product definition. A printer’s page rate cannot be directly compared with a binder’s books-per-hour rating or a case maker’s components-per-minute specification.

Include operator availability, transfer time and inspection in the calculation. Short runs may require frequent interventions even when nominal speed is high. Measuring the interval from an accepted order to a packed finished product gives a more useful investment benchmark.

2. Substrate Qualification Comes Before Diversification

The standard-tray range extends to 210 gsm, but this is not approval to print every coated stock, laminated component or board-book material. The narrower feed-tray range also matters when planning automatic replenishment. Obtain explicit confirmation for the selected substrate and feeding configuration.

For book applications, test registration, folding behavior, rub resistance and any required adhesive bond. Children’s board books involve separate structural and gluing requirements; the ComColor GN announcement does not certify a complete board-book production route.

3. Digital Agility Depends on More Than Engine Speed

Manuals and localized documents can benefit from smaller batches and variable content. However, preflight, file processing, collation and finishing changeovers may determine turnaround. The commercial opportunity is a repeatable workflow for the intended order mix, not a blanket assumption that a faster engine makes every short run profitable.

Request trials covering both a repeat order and a changed specification. Record accepted output, labor and waste. Regional model names, specifications and availability may differ, according to RISO’s announcement.

Assess Environmental Claims in Context

RISO states that the main unit incorporates 15% recycled resin, three times the proportion in the preceding models. This refers to resin content, not 15% of the entire machine’s weight. The company also attributes energy efficiency to its heatless process.

The touchscreen’s estimated energy and carbon savings compare the GN series with an ENERGY STAR 60 ppm reference. RISO cautions that these are estimates and may differ from savings against a buyer’s existing printer. Evaluate energy per accepted job alongside paper waste and finishing demands; a display estimate is not a site-specific carbon audit.

Frequently Asked Questions

Is the GN9830 rated at 180 duplex sheets per minute?

No. The official A4 long-edge duplex specification is 90 sheets per minute, equivalent to 180 printed pages per minute under the stated conditions.

Does ComColor GN directly manufacture packaging boxes?

The announcement describes cut-sheet document printing and modular finishing. It does not claim complete rigid-box manufacture, direct printing on assembled packages or compatibility with Kylin machinery.

Related Kylin Book and Cover Equipment

For separate downstream production requirements, explore Kylin’s hard cover and rigid box making machine and Children’s Board Book Making Machine. These links identify related book and cover processes, not certified ComColor GN integration. Share materials, product structures and accepted-output targets with Kylin via WhatsApp at +86-13809820550.

Sources: RISO announcement via ANTARA, October 23, 2026; RISO’s official GN specifications and sustainability notes. Technical figures are manufacturer-published information.