Konica Minolta Magicolor 7450 Bedienungsanleitung

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'RAPHIC#OMMUNICATION)NSTITUTE

Lab Testing Report

prepared for

Konica Minolta, Inc.

Report on Testing Results of

Konica Minolta magicolor 7450 Color Laser Printer

Testing Dates: October 17 - 27, 2007

Report Date: October 29, 2007

GrCI Laboratory Testing Report

Between October 17 - 27, 2007, a series of quality tests on the magicolor 7450 color laser printer

were completed by and under the immediate supervision of Professor Michael Blum of the Graphic

Communication Institute at Cal Poly, San Luis Obispo. This testing was conducted on behalf of

Konica Minolta, Inc.The tests were designed to determine the suitability of this particular printer

for the Macintosh-based graphic design, production, and creative marketplaces. Since professionals

in this ﬁeld typically work using high-end Apple Macintosh computers and design applications

such as Adobe Creative Suite and QuarkXPress, the tests were structured accordingly.

Testing Methods

A test suite was developed using popular design, production, and creative applications commonly

run on the Macintosh platform. No testing was performed using the Windows platform. The

applications selected included the typical design programs such as Adobe Illustrator, Photoshop,

InDesign, and QuarkXPress. In addition, FileMaker Pro, Microsoft Ofﬁce, Keynote, Mail, Preview,

and web browsers were tested. In most design, creative, and production environments, all of these

programs are used for a variety of ofﬁce and presentation needs, and therefore a color laser printer

would need to be able to print successfully from each of these programs as well as the standard

design applications.

The following programs and versions were tested:

Acrobat 8.0

Adobe Reader 8.0

Camera Direct

Excel 04

FileMaker 8.5

Firefox 2

Illustrator CS2

Illustrator CS3

InDesign CS2

InDesign CS3

Keynote 4

Mac Mail 2.1

Photoshop CS2

Photoshop CS3

PowerPoint 04

Preview 3

QuarkXPress 6.5

QuarkXPress 7.2

Safari 2

Word 04

Testing was completed by faculty, staff, and students in the Graphic Communication Department

at Cal Poly State University (www.calpoly.edu) under the supervision of Professor Michael Blum.

The Department is one of the leading institutions of its kind in the nation, and offers a BS

degree in Graphic Communication with concentrations in Printing and Imaging Management,

Design ReproductionTechnology, Electronic Publishing and Imaging, Graphics for Packaging, and

Individual Study.The Department also houses the Graphic Communication Institute at Cal Poly

(GrCI). The GrCI provides services to industry including research, testing, product evaluations,

consulting, seminars, workshops, and conferences (www.grci.calpoly.edu). The documents tested

ranged from previously printed faculty and student work, to new documents created for this

project.The page lengths of the documents tested ranged from 1 page to 735 pages per document.

As part of the test suite, paper handling capabilities of the printer were utilized from the various

applications, including simplex and duplex, collated and non-collated, portrait and landscape, and a

variety of paper sizes including Letter,Tabloid, 12” x 18”, and 12.25” x 40” banner stock.

A range of substrates was tested on the 7450 to note both the ability to feed properly and the color

quality obtainable on each. During the testing, the following substrates were used:

Futura Laser 100# Gloss Text

Futura Laser 100# Dull Text

Futura Laser 80# Gloss Cover

Future Laser 80# Dull Cover

Kromekote 12 pt Cover

Technisource 80# Gloss Cover

Technisource 80# Matte Cover

Technisource 28# Copy Writing

Technisource 80# Copy Cover

Technisource 10 pt Super Gloss Cover

A database was designed for this project to track the testing on the 7450 printer. Each job printed

during the course of testing was entered into the database including the application used, substrate

size and type, coverage, document type, page count, run length, print quality, and results.A typical

entry screen for this database is shown below.

Konica Minolta

magicolor 7450 print result

New

application

Illustrator CS3

print size

12 x 18

page count

coverage

Heavy

document type

Poster

results

Complex Illustrator ﬁle with tonal gradations.

Excellent job of handling different transparent

effects. Beautiful looking print and a nice job

on knockout areas. Print quality OK.

date

10/19/2007

run length

job number

paper type

Technisource 80# Matte Cover

clicks per job

total clicks

6338

Print quality OK

Yes

A test suite was developed to determine the font-handling capability of the 7450 printer, including

TypeOne PostScript, TrueType, and OpenType fonts — all font formats commonly used in the

Macintosh environment.

The color capability of the printer was tested in several ways: demanding test images were printed

on the 7450 and were evaluated under controlled conditions by color experts; ICC color proﬁles

were created for the printer and tested along with industry standard ICC proﬁles on the Macintosh;

and the color proﬁles were analyzed using ColorThink Pro 3.0, a tool designed to evaluate and

compare ICC proﬁles by generating a 3D rendering of their color space.

Printer Setup and Support

When the printer arrived,it was quickly setup by our in-house InformationTechnology Consultant,

Jon Sehmer. Jon has set up many printers in a Mac environment and noted that the Konica Minolta

7450 was easy to set up. It unpacked easily, loading consumables was simple, and when turned on it

printed a startup sheet containing useful information, including networking.The printer supports

the main networking protocols found in an Apple Macintosh environment as well as the legacy

AppleTalk protocol.Because it is an outdated technology which is rarely used today, we did not test

the AppleTalk networking capabilities of the 7450, although we noted that the printer was instantly

able to correctly grab our building’s AppleTalk Zone Name.

Ethernet on the printer can be setup with either a ﬁxed IP number or DHCP. It was tested both

ways and worked ﬂawlessly. The printer’s settings are accessible via an internal web server and

we were easily able to access the printer’s home page and make numerous settings on the self-

explanatory screens. The printer is capable of sending a variety of notiﬁcations via an internal

e-mail capability, e.g., paper jammed or consumables low.We did not test this capability, although

in some settings it could be very useful.

The Konica Minolta printer came with a printed setup guide in several languages and 2 CDs:

one for printer drivers and one for documentation. Konica Minolta maintains an up-to-date web

site with extensive support information about the printer, and a link to purchase supplies and

accessories.We opted to download the most current Macintosh printer driver and documentation

from the web site. The User Guide is a clearly written 254 page PDF with bookmarks and hot

links in both the table of contents and index.The Reference Guide is 272 pages and is similarly

structured and provides comprehensive details about the 7450 printer. Both publications have

thorough information about using the printer in a Macintosh environment.

We successfully installed the printer driver on 37 Macintosh computers on our network, including

G5 Macintosh computers (PPC) and Intel-based Macs. After installing the driver, the printer can

be set up manually on each client using the Macintosh Printer Setup Utility or it can be accessed

within its Ethernet Subnet as a Bonjour printer which automatically installs and conﬁgures itself.

We tested both methods and both worked without problems.

There were very few problems in setting up and using the printer, but we decided to contact

the technical support hotline listed on both the web page and the printed documentation to test

how well the product is supported by Konica Minolta. During the ﬁrst call, we were immediately

handled by a technical support representative without going through any answering phone tree.

We were not quizzed about our product serial number, customer support contract, warranty, etc.

(we did not identify ourselves as product testers).We posed a fairly technical question speciﬁcally

about the Macintosh printer settings and received an immediate, knowledgeable answer. Our

second support call was answered by an automated attendant which estimated our wait time as

less than 2 minutes. Our call requesting very technical Macintosh-speciﬁc support was once again

professionally, quickly, and accurately answered. From our past experience with hardware technical

support, this level of service is very far above the norm.

Application Test Results

A total of 6,338 test prints were made on the Konica Minolta 7450 printer using 20 different

applications typically found in Macintosh design, production, and creative environments. Print

settings were modiﬁed from the control panel of the printer and from the Print dialog box on

the Macintosh. Both methods worked successfully and we eventually found it easiest to make the

necessary changes from the Print dialog box on the Macintosh.

A majority of the printing, 38.1%, was done from Adobe Acrobat Professional, which was judged

to be one of the most common applications for this environment.Adobe InDesign CS3 was used

for 20.7% of the printing. In these and the other 18 applications tested, settings such as stock size,

orientation, duplexity, and thickness, were varied. Files with coverage ranging from light to very

heavy were sent.The printer performed excellently in these tests, with very few exceptions.

We experienced a 1.2% failure rate in the testing.The main cause of failure was due to incorrect

driver settings (48 prints).We learned that it is important to set the correct paper thickness in the

driver prior to printing. If the thickness setting is too low, toner does not properly adhere to the

stock. In addition, subsequent jobs will have stray toner until the excess toner is passed through the

machine. Both the initial incorrectly printed job and the subsequent spoiled sheets were counted

as failures in this testing.

This error is purely operator-dependent and easily avoidable.The failure rate due to causes other

than incorrect Printer driver settings was 0.5% or 31 copies. Of these, 20 sheets exhibited toner

repelling from the edges of heavy solid areas in vector graphics; 10 sheets showed some minor

shifting of color during print runs, and one sheet had streaks through it for no known reason.

The distribution of the application testing is summarized on the following page.

Substrate Test Results

A total of 10 different substrates were tested for this project, ranging from 28# copy through 12 pt

Kromekote.The papers were tested in a range of applications and consistently fed well regardless

of thickness.We quickly learned the importance of setting the correct paper thickness in either the

7450 control panel or in the driver setting -- an incorrect setting results in poor toner adhesion.

The distribution of paper tested by type is summarized on the following page.

Paper Handling Test Results

In these tests, we used the most common paper sizes we would anticipate ﬁnding in a Macintosh

creative, production, or design environment: Letter, Tabloid, and 12” x 18”. We also tested the

optional banner accessory which makes it easy to print 12.25” x 40” color banners.The 12” x 18”

size is an important one for the graphic arts marketplace. Many color printers support 11” x 17”,

but few offer 12” x 18”. Full-bleed printing of 11” x 17” spreads in which the ink or toner goes

clicks

percent

Summary by Application

Acrobat

2,415

38.1%

Adobe Reader

1,138

18.0%

Camera Direct

120

1.9%

Excel 04

0.4%

FileMaker 8.5

0.7%

Firefox 2

0.3%

Illustrator CS2

0.2%

Illustrator CS3

0.9%

InDesign CS2

0.4%

InDesign CS3

1,315

20.7%

Keynote 4

0.8%

Mac Mail

0.2%

Photoshop CS2

0.9%

Photoshop CS3

134

2.1%

PowerPoint 04

0.5%

Preview 3

213

3.4%

QuarkXPress 6.5

227

3.6%

QuarkXPress 7.2

150

2.4%

Safari 2

0.4%

Word 04

256

4.0%

6,338

Total

past the printed edge is a very popular production technique which must be accomplished by

printing on over-sized paper.The 12” x 18” stock allows both production printing and prooﬁng

of full-bleed jobs including register marks, color bars, and job information.We noted that all paper

sizes we tested worked equally well.

We also tested the duplex and collating features extensively. Initially our sample printer came

without an internal hard disk, which is required for collating.The internal hard disk was easy to

install and provided the memory needed for the printer to collate jobs. Both duplex and collating

features work well and are easy to control from the Macintosh Print dialog box.

The distribution of paper tested by size is summarized below:

Font Test Results

In Macintosh environments a printer must be able to handle a robust mix of fonts and font

types.We successfully tested the printer with many TypeOne PostScript,TrueType, and OpenType

fonts without a single failure. On our particular printer the fonts printed slightly heavier than we

are used to seeing them compared with similar print engines.We stress-tested the printer’s font-

handling capabilities by sending a single job which contained 412 fonts.The job printed quickly

and without problems.

clicks

percent

Summary by Paper Size

12 x 18

1,055

16.6%

Banner

0.7%

Letter

5,189

81.9%

Tabloid

0.8%

6,338

Total

clicks

percent

Summary by Paper Type

Futura Laser 100# Dull Text

1,835

29.0%

Futura Laser 100# Gloss Text

106

1.7%

Futura Laser 80# Gloss Cover

145

2.3%

Future Laser 80# Dull Cover

112

1.8%

Kromekote 12 pt Cover

113

1.8%

Technisource 10 pt Super Gloss Cover

177

2.8%

Technisource 28# Copy Writing

2,475

39.1%

Technisource 80# Copy Cover

437

6.9%

Technisource 80# Gloss Cover

364

5.7%

Technisource 80# Matte Cover

574

9.1%

6,338

Total

Color Test Results

To test the color capability of the printer we used the internal web page to vary the default

PostScript color settings to the native color space of the printer. A color test target was printed

using this native color space in order to create an ICC Proﬁle using a Gretag Macbeth Spectroscan

scanning spectrophotometer and associated color proﬁling software.

This ICC Proﬁle was compared with a proﬁle commonly used for commercial printing, US

Sheetfed Coated V2, using the 3D graphing capability of ColorThink Pro 3.0.The results shown

below, indicate that the 7450’s color gamut is reasonably close to the commercial printing proﬁle,

although slightly lacking in density, which is typical for toner-based devices compared with offset

lithography. It is clear that the 7450 is designed to work well in an Apple ColorSync workﬂow.

In addition to this quantitative color measurement of the printer, a number of demanding color

test targets were printed and were visually judged by color experts for quality. The test target on

the following page from the Graphic Arts Technical Foundation is one example.

This target is demanding because it has a variety of shades of gray which must all be produced as

neutral using Yellow, Magenta, and Cyan toner. It also has a variety of skin tones which are very

difﬁcult to reproduce correctly.The 7450 performed very well in producing this and other color

test targets.

Conclusions

This study tested the capabilities of the Konica Minolta magicolor 7450 color laser printer for its

suitability in the design, creative, and production market in an Apple Macintosh environment.The

printer was easy to set up; excellent drivers for the Macintosh were readily available for download;

outstanding telephone support for the printer in a Macintosh environment was available; the 7450

performed excellently from all of the 20 tested applications; all substrates used in the test fed with

very few problems; the printer did a good job of handling a variety of paper sizes, duplex settings,

and collating options (when equipped with an internal hard disk); font handling on the magicolor

worked well (although the text was slightly heavy); and the color gamut and accuracy of the printer

was judged to be very good. In summary, the Konica Minolta 7450 appears to be an excellent

printer for the Macintosh design, creative, and production market.

The Graphic Communication Institute greatly appreciates the opportunity of providing laboratory

testing services for Konica Minolta, Inc. We hope that the preceding report provides a useful

analysis of the information and insights garnered during that process. Please call us at (805) 756-

2645 if you have any questions regarding this report or any of the conclusions mentioned within.

Note: The conclusions drawn in this report are based on the facts and conditions that were

observed by or reported to us. They may include Graphic Communication Institute (GrCI) test

results, observations, and/or information believed to be reliable. Since there are so many variables

in the process, these conclusions may not remain valid if the information given us was incorrect

or incomplete.We do not assume any responsibility for the use or application of this report. It is

conﬁdential and was not prepared for quotation or publication.

Sincerely yours,

Michael Blum, Professor

GrCI Project Supervisor

Graphic Communication Institute

Cal Poly State University

San Luis Obispo CA 93407

805.756.2645

805.756.2733 fax

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