299782810763889_image_ret_4800_white_paper.pdf
(
1597 KB
)
Pobierz
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
white paper
hp color LaserJet
9500 series printer
August 2003
HP Image REt 4800
overview
Print quality has gained importance as businesses and their customers focus on the
professional appearance of documents. This importance is magnified several fold for
color documents, which are often used to generate revenue or sell important concepts.
The HP Color LaserJet 9500 series printer has taken print quality up to a higher level
than ever before with HP ImageREt 4800.
The HP ImageREt 4800 is not about dpi. This superior print quality is achieved by a
complete HP proprietary printing system solution.
Seven notable color laser
technologies converge in the HP ImageREt 4800 to provide print quality levels that
rival those of commercial presses: High Resolution Laser Imaging System, Precise Print
Mechanism, Industry Leading Image Enhancements, Accurate and Intelligent Color
Control, Smart Printing Supplies with dual-component chemically-grown toner system,
Adaptive Gloss Finish and System Optimized HP LaserJet Papers.
This white paper will focus on these technologies and what makes HP ImageREt 4800
stand out in the crowd to provide quality never seen before in the HP Color LaserJet
9500 series printer price class.
Image REt 4800
Image REt 2400
Image REt 1200
Binary 300 dpi
Print quality evolution over time
1
what are the
benefits?
HP ImageREt 4800 lets customers print high-value promotional documents with
commercial press quality, right in the office. The key benefits are as follows:
Superior image detail and color gamut
•
Industry-leading uniformity and color plane registration
•
Superior color consistency and desired color accuracy
•
Excellent tone scale, text sharpness, and line clarity
•
Optimal toner-to-media gloss matching
•
Superior reliability and total Ñout-of-the-boxÒ experience
•
what is it?
High-resolution laser imaging system
Benefit: superior image detail and tone rendition
Technologies: multi-level laser exposure and multi-layer technology
Multi-level laser exposure Ð The HP multi-level laser exposure print system can
modulate laser dot size and adjust dot position to produce superior tone rendition.
Laser position and power adjustments are key to creating stable high-frequency
halftones. Instead of grainy looking images where you can see the individual dots that
form the images, you get a near photographic quality image. This is one of the
technologies that allows HP to create image quality well beyond a 600 dpi binary
system.
Multi-layer technology Ð The multi-level printing process precisely controls color by
combining up to four colors
within a single dot and by
varying the amount of toner in
a given area. As a result,
ImageREt multi-layer technology
creates millions of smooth
colors, sharp images, and crisp
text.
Binary technology
Multi-layer technology
HP Image REt 4800
2
In contrast, the single level (binary) printing process does not allow the colors to be
mixed within a single dot. Thus, single level (binary) printing is limited to creating
colors by placing various colored dots (limited to eight colors) close together within a
cell to create the illusion of another color.
Precise print mechanism
Benefit: excellent uniformity and color plane registration
Technologies: OPC velocity control encoders and helical drive gears, dual-beam
scanners, stiff frame, enclosed intermediate transfer belt, post charger, separation
discharge comb, power supply filtration, and fuser roller (refer to graphic below)
OPC velocity control
encoders & helical drive
gears
dual-beam scanners
stiff frame
fuser roller
power supply filtration
enclosed intermediate transfer belt
post charger
separation discharge comb
HP Image REt 4800
3
Organic photo conductor (OPC) velocity control encoders Ð The
HP Color LaserJet 9500 series printer achieves sub-pixel accuracy in color plane
registration. This is accomplished by close design tolerances, registration calibration,
and OPC velocity control with stepper drive encoders. These encoders provide closed
loop velocity control for each OPC.
OPC velocity control encoders
Robust helical gears for OPCs Ð Helical gears provide smoother motion and easily
carry greater loads because of increased tooth surface contact.
helical OPC gears
Stiff frame Ð The stiff frame was designed to keep all mechanical and electrical
components working together in precise concert and within very tight tolerances
throughout the entire life of the printer.
Dual-beam scanners Ð The dual-beam scanners spin 50 percent slower, guaranteeing
stable low banding rotation over life.
dual-beam scanners
HP Image REt 4800
4
Enclosed intermediate transfer belt Ð The ITB (intermediate transfer belt) is enclosed to
prevent contamination of rollers, which can result in repetitive banding defects.
intermediate transfer belt
Electrical power supply filtration Ð Electrical banding on the final printed output is
rendered visually imperceptible through extensive use of filters in the high voltage
circuitry.
power supply filtration
Post charger Ð The post charger makes the charge of the various toners match on the
intermediate transfer belt so the last transfer step of the entire image to paper is
optimal.
post charger
HP Image REt 4800
5
Plik z chomika:
scerbaty
Inne pliki z tego folderu:
139024750000000_clj9500pcl-xlfix.zip
(707 KB)
212462733796296_9500dashboard.xls
(35 KB)
299782810763889_image_ret_4800_white_paper.pdf
(1597 KB)
300277957407407_image_ret_4800_tech_brief.pdf
(44 KB)
9500_9500mfp_print_engine_service.pdf
(37937 KB)
Inne foldery tego chomika:
CLJ 1500, 2500
CLJ 1600
CLJ 2500
CLJ 2550
CLJ 2600
Zgłoś jeśli
naruszono regulamin