Sharp MX-LCX3 Manual do Utilizador descarregar pdf (Página 6)

Sensor

(Conceptual image)

Toner cartridge

Discharged

Toner (magenta)

(Conceptual image)

Carrier

Sheet separation

Assist air

Suction

(Conceptual image)

Pressure

Convex curl

Concave curl

Pressure

Yellow

Green

Blue

Red

Magenta

Cyan

Colour Gamut Chart

a*: Colour channel from Green to Magenta

b*: Colour channel from Blue to Yellow

Typical offset prints

MX-7500N/6500N

Paper delivery direction

A4 paper

Rear edge detection

(finely arrayed contact

image sensors)

Leading edge

detection sensor

Adjusted position

of printed image

Dot screen (high) Line screenImage

Reliability Builders

Superb, Stable Image Quality

A precision-engineered Multi-Feed Detection System employs ultrasonic

technology and separation rollers for double-fed paper to detect and

prevent misfeeds from the paper feed section for maximum uptime.

Multi-Feed Detection System

The MX-7500N/6500N was developed to provide high image quality

approaching that of commercial offset printers. With Sharp having

reinforced all elements related to image processing—including the toner

and colour profiles—the MX-7500N/6500N boasts a colour gamut that is

almost identical to that of offset printers.

Wide Colour Gamut

Third-generation Mycrostoner-HG3 (High Grade) expands the colour

reproducibility range for a more natural rendering of clear blue skies,

emerald green oceans, and other colour images. And the smaller particle

size of the toner and the carrier allows for reduced graininess and clear

reproduction of fine lines, fine text, and halftone colours.

Mycrostoner-HG3

The MX-7500N/6500N employs 8-bit image processing to deliver

razor-sharp 1,200 x 1,200 dpi printing—without sacrificing output

speed. Digital smoothing technology enhances the print and copy

resolution to the equivalent of 9,600 x 600 dpi for smooth reproduction

of fine lines. Fine-grained photographs, detailed illustrations and graphs,

and small text come out crisp and clear.

High-Resolution Output

In addition to conventional line screening, the MX-7500N/6500N

employs the dot screening technique—typically found on offset

printers—for colour and greyscale printing. Thanks to dot screening, the

MX-7500N/6500N can emulate the high-quality printing of commercial

offset printers, even when performing on-demand printing.

Dot Screening Technique

To meet the demands for high image quality, accurate colour

registration, and stable output, the MX-7500N/6500N employs functions

that automatically make the right adjustments at the right time without

sacrificing print speed. These functions enable the MFP to deliver highly

precise printing and stable colour quality, so that a consistently high level

of print quality and productivity is maintained over the long run, from

first page to last.

• When printing large numbers of multi-page documents, the

MX-7500N/6500N automatically adjusts the print position so that each

of the CMYK colours is printed at the correct registration.

• The MX-7500N/6500N’s registration sensors precisely detect the

position of registration patches printed on the transfer belt. These

measurements are then used to make minute adjustments—when

necessary—of the print position for each CMYK colour.

• The temperature inside the machine is measured by sensors in key

areas of the MFP, such as the LSU (laser scanning unit) and

paper-transfer section. The MFP uses this information to make

automatic adjustments before print quality can be affected by

temperature changes.

• For even greater precision, a sensor detects any skewing of the laser

beam that goes from the LSU to the photosensitive drum, so that the

MFP can make automatic adjustments to eliminate such skewing.

Precise Colour Registration

The MX-7500N/6500N supports genuine Adobe PostScript 3 for better

graphics handling. Complex colour graphics can be printed out in a short

time with minimal error, and multiple colour spaces such as RGB, CMYK,

and Lab can be used.

Adobe

PostScript

™

Based on feedback from two paper-position sensors located in the paper

path, the MX-7500N/6500N employs an image shift function to

automatically adjust the position of printed images with respect to the

edges of a page. This precise front-to-back registration ensures exact

correspondence of the printed material, so that consistently high levels

of quality can be achieved when producing leaflets, brochures, and other

documents—including those with two-sided double-page spreads or

those that are to be saddle stitched and trimmed. Users can also

manually adjust vertical/horizontal ratio* and position settings to achieve

even more precise front-to-back registration.

* Available only for Sharp printer driver.

Front-to-Back Registration

For reliable output of two-sided copies and prints, the MX-7500N/6500N

provides built-in curl correction to uncurl paper just after transfer. And

for added stability, the optional Curl Correction Unit uses top and

bottom rollers to apply pressure to convex and concave curls, preventing

paper from warping before it goes to the finisher.

Curl Correction

In order to achieve consistent image

quality from first page to last, Sharp

developed the Developer Refresh

System. In this system, toner and

carrier are delivered to the developing

unit at the same time. By discharging

old developer little by little and

continuously replacing it with new

developer, this system prevents

developer deterioration, ensuring

stable print quality over the long term.

Developer Refresh System

A highly rigid support frame isolates

and protects critical machine

components in the MX-7500N/6500N,

ensuring increased durability and

reliability. The unit can withstand heavy

use in locations where rapid,

high-volume output is demanded.

Highly Rigid Main Frame

The Triple Air-Feed System on the optional 5,000-sheet MX-LC13 Large

Capacity Trays reliably separates and feeds in paper to facilitate jam-free

operation and minimise downtime. Capable of supporting a wide range of

paper types, this system employs air-feed technology and three precisely

directed air flows for maximum reliability and proper paper handling.

Triple Air-Feed System

Particularly convenient during toner cartridge replacement, an unlikely

paper jam, and other operations, full front access to all key machine

components ensures easy maintenance—and maximum uptime.

Full Front Access

To maintain a consistently high image quality during large-volume print

jobs, the MX-7500N/6500N employs an enhanced periodic colour

calibration system. Image density sensors monitor

image consistency to minimise colour variance

between pages. As an added advantage,

the MFP makes the necessary colour

adjustments without stopping

the print job, ensuring

time-efficient printing.

Auto Process Control

Breathtaking Image Quality

Advanced Technologies to Maintain High Image Quality

The MX-7500N/6500N has a machine adjustment menu to enable MFP

administrators (i.e., trained print room managers) to access and

configure machine set-up for a total of 50 items in three areas: image

quality, image position/ratio/

area, and peripherals. As there

is no need to call for outside

service staff when making MFP

adjustments, machine

downtime is reduced and

productivity boosted.

Administrator Machine Adjustments

1 2 3 4 5 6 7 8 9 10 11 12

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