Xerox Color C60, Color C70 User Guide

®

Xerox

Color C60/C70 Printer

Simple Image Quality Adjustment
(SIQA) User Guide

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trademarks of Xerox Corporation in the United States and/or other countries.

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Table of Contents

1 .............................................................................................................................-ii

1 Simple Image Quality Adjustment (SIQA) Overview..................1-1

Accessing the SIQA Tools..................................................................................................1-2

Image Orientation Definitions.......................................................................................1-3

2 Image Transfer Adjustment..................................................................2-1

Image Transfer Adjustment Overview.........................................................................2-1

Adjust Image Transfer.......................................................................................................2-1

Adjust Image Transfer Manually...................................................................................2-3

Assigning the Image Transfer to Media.....................................................................2-5

3 Auto Alignment Adjustment.................................................................3-1

Auto Alignment Adjustment Overview.......................................................................3-1

Printing the SIQA Targets.................................................................................................3-1

Printing the SIQA Black Paper Image File....................................................3-1

Printing the Calibration Chart...........................................................................3-2

Document Feeder Precision Scan Adjustment.........................................................3-4

Scanning the Targets..........................................................................................................3-4

Scanning the Targets with the Document Feeder (DADF).....................3-5

Scanning the Targets with the Platen Glass................................................3-5

Saving the Profile.................................................................................................................3-7

Using the Profile...................................................................................................................3-8

4 Density Uniformity Adjustment..........................................................4-1

Performing Density Uniformity Adjustment.............................................................4-1

Simple Image Quality Adjustment (SIQA) User Guide

iXerox®Color C60/C70 Printer

Table of Contents

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Simple Image Quality Adjustment (SIQA) User Guide

1

Simple Image Quality Adjustment (SIQA) Overview

Simple Image Quality Adjustment (SIQA) is a set of maintenance tools that adjust the
quality of the printed images generatedbythe printer. Use the SIQA Toolinthe following
instances:

• When image alignment on duplex output requires correction

• When within page image density requires uniformity adjustment

SIQA performs three types of adjustments, which must be performed in the order given:

• Image Transfer: This tool corrects for uneven toner and color shift by creating an

Image Transfer Adjustment to the Bias Transfer Roll in the printer. The adjustment
is created and saved forspecificstocks and can be selected for any traywhen printing
on those stocks. Perform the Image Transfer Adjustment before performing any
other image adjustment.

• Alignment: The Alignment procedure generates an individual alignment profile for

each stock/tray combination selected when performing the procedure. These profiles,
ot Types, ensure that images are placed correctly on the media. You can create a
maximum of 50 Types for use across all input trays. You can assign a different Type
to each of the input trays, if desired. The assigned Type is then automatically applied
each time the associated tray is used, ensuring optimal print quality. Perform
Alignment Adjustment after you have completed the Image Transfer Adjustment.

• Density Uniformity: The Density Uniformity procedure adjusts print engine tables

to ensure that ink is deposited uniformly and consistently across the entire surface
of a page for each print. Perform the Density Uniformity Adjustment after you have
completed the Image Transfer and Alignment Adjustments. Unlike Auto Alignment
Adjustment, the profile you select applies to all input trays.

These are the three sets of steps that are performed when calibrating the printer with
the SIQA tools:

Simple Image Quality Adjustment (SIQA) User Guide

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Simple Image Quality Adjustment (SIQA) Overview

1. Print the SIQA targets.

2. Scan the targets using either the Document Feeder or the Platen Glass.

3. Save the adjustment data to a file on the printer providing the file with a unique
name.

The adjustment profile is then complete and can be selected by users for print runs, as
needed.

Accessing the SIQA Tools

To access the SIQA tools:

1. Log in as a System Administrator.
a) At the printer Control Panel, press the Login/Logout button.

b) Type admin and touch Next.
c) Type the Administrator passcode and touch Enter.

The default passcode is 1111.

2. Press the Machine Status button on the control panel.

3. Touch the Tools tab.

4. In the Features column, scroll down and touch Maintenance.

5. Touch the down arrow to access the SIQA tools on the next screen.

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Simple Image Quality Adjustment (SIQA) User Guide

Simple Image Quality Adjustment (SIQA) Overview

Image Orientation Definitions

Inboard and outboard are as follows:

• On the machine, inboard refers to the rear of the machine (the side farthest from

you as you are using the machine) and outboard refers to the front (the side nearest
you).

• On the printed output, as you hold the sheet with the top facing up, inboard refers

to the left side of the sheet and outboard refers to the right side. The short black line
indicates the top of the sheet.

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Simple Image Quality Adjustment (SIQA) Overview

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Simple Image Quality Adjustment (SIQA) User Guide

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Image TransferAdjustment

Image Transfer Adjustment Overview

The purpose of the Image Transfer Adjustment is to correct for mottle (uneven toner
coverage) and color shift (inconsistent color). These image quality issues may occur on
heavy-weight stocks. The Image Transfer Adjustment applies only to the paper type
selected during the procedure. You must perform this adjustment for each paper type
loaded in the printer.

Adjust Image Transfer

The Image Transfer Adjustment applies only to the paper type selected during the
procedure. You must perform this adjustment for each paper type loaded in the printer.

Follow these steps to perform a Simple Image Quality Adjustment (SIQA) for image
transfer:

1. Log-in as a System Administratorand access the SIQA tools screen. Refer to Accessing

the SIQA Tools.

2. Touch Adjust Image Transfer.

3. Touch Paper Type, and choose a paper type from the list.

4. Touch Close.

Simple Image Quality Adjustment (SIQA) User Guide

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