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Crown

Multitasking

Rather than rasterizing the page as a whole, the Crown operating system compiles the page into an intermediate, compressed QMS display list. If the printer is busy printing, the intermediate blocks of data are stored in printer RAM until the printer is available for printing. This process allows more efficient storage as well as concurrent com- piling, rasterizing, and printing. This, in turn, provides faster printing speeds.

	Intermediate
Compiler	Blocks	Rasterizer		Print
Compiler	complied	Rasterizer		Print
PDL Interprets	complied		Bitmapped	Engine
PDL Interprets	into the		Pages	Engine
PDL and	into the	Rasterizers	Pages
	Printer's

Creates		Intermediate		Prints
Creates	Native	Intermediate		Prints
Intermediate	Language	Blocks as		Collated
Intermediate	Language	Blocks as	as needed	Collated
Blocks		needed	as needed	Documents
	(32KB each)

Collated Documents

By separating the printing process into the two operations of compil- ing into an intermediate format and rasterizing, the printer does not have to re-create an entire page from scratch each time it is printed. The more time-consuming compilation operation is done only once per page. Each page may be printed multiple times simply by rasteriz- ing the intermediate format.

An important feature of compile-ahead technology is simultaneous compiling, rasterizing, and printing. This capability changes what has traditionally been a sequential process into a parallel operation where several processes (compiling, rasterizing, and printing) work indepen- dently. In other words, the compiler changes the page description into intermediate blocks and stores them in memory; the rasterizer pro- cesses the intermediate blocks as needed by the print engine; and the print engine prints the pages. And all these tasks are done at vir- tually the same time.

Because the intermediate blocks are compiled ahead, stored effi- ciently, and processed quickly, after the first copy of a page is printed, all other copies of that page are printed at the printer's rated speed and in any order, including being automatically collated. In addition, parallel operation allows the printer to work on different phases of several print jobs at one time, employing the print engine more effi- ciently because it does not have to be turned off between print jobs.

2-26	QMS 4525 Print System User's Guide

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QMS 4525 specifications

The IBM QMS 4525 is an advanced printer model renowned for its exceptional performance in the realm of commercial printing. Designed to meet the needs of businesses that require high-quality output and efficiency, the QMS 4525 stands out with a combination of robust features, modern technologies, and reliable characteristics.

At the heart of the IBM QMS 4525 is its impressive print resolution, capable of delivering high-quality prints at resolutions of up to 1200 x 1200 dots per inch (dpi). This allows for crisp text and vibrant images, making it an ideal choice for businesses that demand clarity in their printed materials. The printer supports a range of media types and sizes, enhancing its versatility and allowing users to print everything from simple documents to complex marketing materials.

The QMS 4525 also incorporates advanced printing technologies that streamline workflow and improve productivity. With its fast print speeds, it can produce up to 45 pages per minute, ensuring that high-volume jobs are handled efficiently. Additionally, the printer features a large input capacity, allowing users to load multiple paper trays at once, which minimizes the need for frequent paper refills and enables longer print runs without interruption.

Energy efficiency is another hallmark of the IBM QMS 4525. It is designed to minimize power consumption while maintaining performance, making it an environmentally friendly option for businesses looking to reduce their carbon footprint. The printer’s quiet operation further enhances the workplace environment, allowing for a more pleasant working atmosphere.

Another significant characteristic of the QMS 4525 is its connectivity options. It boasts multiple interfaces, including USB, Ethernet, and parallel ports, which facilitate easy integration into existing office networks. This flexibility allows users to share the printer across various devices, making it accessible to multiple users simultaneously, thus enhancing collaboration.

The user-friendly design of the QMS 4525 ensures ease of use, featuring an intuitive control panel and software that enables quick access to printer settings. This characteristic is particularly beneficial for businesses with varying printing needs, as it allows users to quickly adjust settings based on specific job requirements.

In conclusion, the IBM QMS 4525 combines top-notch print quality, speed, energy efficiency, and versatile connectivity. These features make it an ideal choice for businesses that prioritize both quality and operational efficiency in their printing processes. Whether for internal documentation, marketing materials, or professional presentations, the QMS 4525 is equipped to meet the demands of diverse printing tasks.

IBM QMS 4525 manual 406&RPSLOH$KHDG7HFKQRORJ\$SSURDFK

Models: QMS 4525