To ensure high-speed printing and high print quality, this printer is provided with the Banding Reduction System (BRS) and Paper Feed Profile Correction (PFP) function, which are

outlined below:

Outline

Conventional models perform overlapping printing (two-pass or four-

pass printing) to reduce banding for ensuring high print quality.

However, the printer provided with the Banding Reduction System

BRS

corrects the dot generation rate (amount of settled ink) for each raster,

and performs one-pass printing. This function ensures both high print

quality (reduction of banding) and high-speed printing.

The conventional paper feed adjustment method is such that the

correction value calculated from the data based on a specific part of the

sheet is reflected to almost all over the sheet. Therefore, the

conventional method cannot cope with the fluctuating error in the paper

feed rate during paper feeding. However, the Paper Feed Profile

PFP

Correction function measures the error in the paper feed rate at each of

minutely distributed measuring points on the sheet and provides a

correction value for each point. Thus with this function, the printer

realizes high print quality and high-speed printing on a supported paper

type and in a supported printing resolution.

How to prepare correction data

For each of BRS and PFP, print the relevant pattern for correction data preparation and read the printed pattern through the scanner. Then calculate the correction data and store the data

in the serial flash ROM on the Main Board. The correction data are applied to printing in the supported printing mode.

C H E C K

Refer to

Chapter 5 "Adjustment"

P O I N T

preparation for BRS and PFP.

Operating Principles

Table 2-6. Outline of Banding Reduction System and Paper Feed Profile Correction Function

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