Xerox C8 - DocuPrint Color Inkjet Printer User manual

DocuColor 8000 / 8000AP / 7000 /
7000AP
Specialty Media Guide: Hints & Tips
December 10, 2007
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This guide is intended to inform about media recommendations and to share hints and tips regarding
the best way to print on various media substrates using the DocuColor 8000AP / 8000 / 7000AP /
7000 Digital Color Press.
It is important to realize that system performance, with most of the special media types covered in
this guide, will not be as good as that which can be obtained with the DocuColor 8000AP / 8000 /
7000AP / 7000 baseline paper which is Xerox Color Xpressions +, 24lb. (3R11540) in the USA and
Canada and Xerox Color Colotech + 90 gsm (3R94641) in Europe.
The most recent version of the Recommended Materials List for DocuColor 8000AP / 8000 / 7000AP
/ 7000 is available for download at www.xerox.com attached to the product page.

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Out put Curl and Dec urling Devic es
Paper curl is caused by a variety of factors. Many papers tend to curl toward one side after toner is
applied and fused. For some paper products, paper curl variability may be evident from batch to
batch and even from ream to ream.
The DocuColor 8000AP / 8000 / 7000AP / 7000AP has an automatic curl control system that uses a
number of variables to adjust the amount of pressure applied by different decurlers in an effort to
reduce as much curl as possible from printed output. Default settings are programmed in the system
based on equipment design parameters; however, the default settings may not be appropriate for all
papers.
Most of the papers designed for xerographic use indicate the preferred printing side with an arrow on
the ream label. Follow the manufacturers’ suggestions for first image side, and load paper with the
arrow pointing up for onboard trays 1 and 2, as well as Secondary Feeder Module (SFM) trays 3 and
4. If the output prints have too much curl, first try flipping over the stack of paper in the paper tray
being used.
If flipping the stack of paper over does not resolve the curling problem, enter the Tools Mode and
manually select a new decurler setting for the paper. Refer to the DocuColor 8000 / 7000 System
Administration Guide for information on how to access Tools Mode and the Decurler Setup screen.
The four pre-programmed decurler settings are named A, B, C, and D and refer to a set of
parameters that characterize how a particular paper interacts with the DocuColor 8000AP / 8000 /
7000AP / 7000 decurling system. Select a different setting for the tray, type, and weight of paper with
a curling problem, then exit Tools Mode and re-run a few sheets using the new setting. A difference
in behavior should be visible, but if output curl remains unacceptable, try additional settings until
desired output is achieved.
Six additional settings (E1-E6) provide additional adjustment flexibility based upon actual output curl
measurements.
To use settings E1 – E6, you must first program these settings to match paper grade, type, area
coverage, and environmental conditions. Refer to the DocuColor 8000 / 7000 System Administration
Guide for instructions on programming these settings.
Out put Considerat ions and B& W Print ing
DocuColor 8000AP / 8000 / 7000AP / 7000 performance is tightly linked to good media selection and
adequate job creation. For particular applications, using coated materials will improve image quality.
The DocuColor 8000AP / 8000 / 7000AP / 7000 can be used to produce black and white documents
as well as color. Because of the way black and white documents are processed and fused, you will
need to run a fine grain paper when running jobs with blocks of solid black. For these jobs, try using

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Xerox Digital Color Elite / Select Gloss or Silk Coated paper in the USA and Canada and Xerox
Colotech + Gloss or Silk Coated in Europe.
Another way of ensuring fine quality solid black images is to change grayscale images to duotones or
process black. This allows the machine to apply its optimum imaging capabilities to the file.
Also, the 150 cluster dot screen, available in the print driver, can be used to soften a grayscale image
and to create specific customer effects. By default, the system uses a 200 cluster dot screen to
achieve its crisp image quality.
Non-St andard (Cust om ) Paper Sizes
For information on loading and programming non-standard paper sizes, refer to the Operator’s
Manual and System Administration Guide.
Drilled / Punc hed Papers
2, 3, and 4 hole drilled / punched papers can be run from any tray in DC8000AP / 8000 / 7000AP /
7000. Papers with 3 holes, however, will require an extra step to run successfully due to interference
between the center hole and machine sensors. First, go to NVM Read / Write in the tools mode (refer
to the System Administration Guide Tools Mode Chapter) and enter chain link 700-545. Change the
default setting from “1000” (on) to “0” (off). Please remember to reset the default value to “1000”
when you are finished running 3 hole drilled / punched papers. Failure to do so may result in
degraded image quality, an increase in service calls, and damage to the machine.
Transparenc ies
Transparencies can be run from any tray yielding a 30 page per minute output. For more information
on loading transparencies, refer to the Operator’s Manual. Use only the recommended Xerox
transparencies to ensure optimum image quality and transmission efficiencies when projected.
Overhead Projector (OHP) sizes are limited to 8.5”x11” in the US, and A4 in Europe. For best results
use transparency 3R5765 (US/Canada) and 3R93179 (Europe).
To ensure consistent image quality and minimize streaking, only 500 transparencies should be run at
one time. If a larger run is required, it is recommended to break the job up into smaller ones and print
approximately 25-50 sheets of regular paper between sets to absorb any excess fuser oil.
Even though paper backed transparencies will run through the system, it is important to be aware
that productivity enhancements may be offset by image quality degradation. Even when run at the
slowest speed possible by selecting the 221-300 gsm (single and mixed paper weight settings),
image quality on paper-backed transparencies will likely be inferior to that which can be achieved by
using the recommended removable stripe transparencies and running them in the OHP mode.

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Coat ed Papers
Coated papers have binders, adhesives, and pigments applied to their surfaces on one or both sides.
As compared to Xerox Digital Color Xpressions + 24 lb, coated papers will provide improved image
quality and gloss.
Coated papers are susceptible to humidity. Image mottle (light patches in solid area) or light images
overall will occur if paper is not kept packaged in environments with more than 40% humidity. To
avoid this, keep packages sealed and store unused paper in a resealable bag.
The surface of coated paper is susceptible to scratches and fingerprints. Handle all coated stocks
carefully and avoid excessive handling. Keep all work areas clean, as dust or dirt can scratch the
surface of coated papers.
Side t o Side Regist rat ion Considerat ions- Paper St ret c h
When running two sided printing applications side to side registration may be affected by the inherent
paper stretch that occurs as the paper passes through the high pressure and temperature nip.
Typical paper stretch for light uncoated materials is between 0.2% and 0.6% of the paper size in the
process direction. For coated materials the effect can be as high as 0.9% of the paper size in the
process direction.
As a summary, the following observations are relevant to the stretch of paper in belt-nip fusing:
1) The paper stretch problem is most apparent with coated papers. Most coated papers stretch
significantly more than uncoated papers due to the larger frictional stresses experienced by
coated stocks and softening of the paper.
2) The direction of feed with respect to the orientation of paper fibers also determines the amount of
stretch. Papers fed in the CD (grain perpendicular to process direction) stretch significantly more
than papers fed in the MD (grain parallel to process direction).
3) Increasing the basis weight decreases the stretch since less stress is experienced due to the
increased thickness.
4) The synthetic material tested (DuraPaper 10 pt) actually contracts as it passes through the fuser.
Paper stretch correction can be done using the “tools” mode registration adjustment, but front-to-back
trim mark registration may not always be possible. This is because the side-1 image expands by the
same amount that the paper stretches, thus making it necessary to expand the side-2 image by the
same distortion amount. In order to compensate for this you can use the Alignment Adjustment tool
(refer to the System Administration Guide Tools Mode Chapter). The tool will allow you to create up
to 20 custom profiles for individual paper stocks. Lead / Side registration, Perpendicularity, Skew,
and Image Magnification (Process and Cross-Process directions) parameters can be adjusted for
optimum registration performance.

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Tabbed Insert s
Customers can print one-sided tabbed inserts from onboard trays 1,2 and SFM trays 3,4 using the
appropriate size and weight setting. Tabbed stock should be loaded into the trays such that the long
edge is fed first (LEF), with the tabs towards the left side of the paper tray (trail edge). Then go to
NVM Read / Write in the tools mode (refer to the System Administration Guide Tools Mode Chapter)
and enter chain link 700-546. Change the default setting from “0” (on) to “1” (off). This will allow
tabbed inserts to be run without interfering with machine paper size sensors. Please remember to
reset the default value to “0” when you are finished running tabbed inserts. The machine will
not function properly if this value is not reset. Verify the size of the material since tabbed inserts may
need to be run as a non-standard paper size. The typical size for tabs to be used with letter size
paper is 11”x 9”. Use 11” as the “x” dimension and 9” as the “y” dimension in the user interface non-
standard paper size window of the tools mode (refer to the System Administration Guide for
instructions to setup non-standard paper sizes). For tabs used with A4 paper use 296mm as the “x”
dimension and 223.5 mm for the “y” dimension. With guides in place, the paper tray should then be
loaded and set to “Non Standard” size. Once the drawer is closed, the user interface should
recognize the custom size. This size must match the size selected in the application used on your
client desktop.
Two-sided printing is not recommended, however, it is possible to print two-sided tabbed inserts. To
do this, load tabbed stock into the trays such that the short edge is fed first (SEF), and reverse the “x”
and “y” dimensions as directed above.
When designing a typical 5-bank tab job, page setup size must be set to 11” x 9” Tab positions
should be centered at 11/2”, 31/2”, 51/2”, 71/2”, and 91/2” respectively. It is also recommended that you
maintain a distance of 1/4" from the top of the landscape edge and the text space per tab should be
limited to 11/2”.
Sc ored Mat erials
Scoring creates a crease in a sheet of paper, usually heavyweight, for applications such as greeting
cards and trifold brochures. These types of materials can be run from any tray in either LEF or SEF
orientations, however, feeding performance will be optimized with score lines running parallel to the
tray feed direction.
Please be aware that the xerographic process has limitations when transferring toner onto a sheet of
paper close to any scores because of a depression or bump on the paper as a result of the scoring
process. The printed output will exhibit a deletion near the score if printed areas are too close. To
avoid this deletion of image or text, jobs should be designed with printed areas at least ¼ inch (6.4
mm) away from the score.
Coat ed One-sided Papers (C1S)
Coated one-sided papers (C1S) can be run from all trays. Most C1S papers are sold using points of
thickness rather than weight. Refer to the Recommended Materials List for the appropriate weight
settings to use for Xerox Digital Color Supreme Gloss C1S papers. As a general rule, 8 pt. C1S
grades should be run in the 136 – 186 gsm setting, 10 pt. should be run in the 187 – 220 gsm setting,

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and 12 pt. and 14 pt. papers should be run in the 221 – 300 gsm range. Since many materials over
14 pts. of thickness will exceed the image transfer and feeding / transport capabilities of the
DocuColor 8000AP / 8000 / 7000AP / 7000 print engine, it is recommended to purchase small
quantities to ensure your expectations are met, prior to committing to large runs.
C1S papers are commonly used in high-quality applications with high toner coverage on the coated
side. Image quality on the coated side will be very good; however, due to the inherent properties of
the paper, the second side will exhibit very different print quality. If superior image quality is required
for both sides, Xerox Digital Color Elite / Select Gloss and Silk (C2S) products are recommended.
Doc uCards
A DocuCard is a 7 mil (7/1000 inch) card affixed to a letter size (8.5”x11” or A4) carrier sheet, usually
a 90 lb. Index stock, 60# Cover stock or an 80# Text stock. The card is generally adhered to an
embossed area at the bottom of the carrier sheet.
DocuCards should be run in batches of 50 sheets. If more than 50 sheets are loaded at a time, the
stack may tilt or tip which may lead to an increase in misfeeds and feeding faults. Additional cards
(up to 200) can be fed short edge first if a Tiltatron is installed. Tiltatrons can be purchased via
Customized Application Services at 585-227-5414. Currently, 1-up and 2-up configurations are
supported, as well as some customized applications. For more information contact your Xerox Supply
Account Manager.
Doc uMagnet s
DocuMagnet is a unique application consisting of a 12 mil, 2.125” x 3.375” magnetized ID card
integrated into an 8.5” x 11” carrier sheet specifically designed for use in some DocuColor
equipment.
DocuMagnets should be run in batches of no more than 50 sheets in the Short Edge Feed orientation
with cards face-up and towards the trailing edge. If more than 50 sheets are loaded at a time, the
stack may tilt or tip which may lead to an increase in misfeeds and feeding faults. Additional cards
(up to 100) can be fed short edge first if a Tiltatron is installed. Tiltatrons can be purchased via
Customized Application Services at 585-227-5414. Duplex printing is not currently recommended.
For best results, avoid printing on the carrier sheet in the area around the card (approximately 3.5”
from the bottom of the sheet).
DuraPaper (Teslin®-lik e Mat erials)
DuraPaper and other Teslin-like materials are synthetic single layer sheets that print and feel like
paper yet are durable and waterproof like plastic. They usually have some tear and abrasion
resistance, making them an ideal printing choice for demanding uses such as tags, menus, labels
and other "harsh environment" applications. They also offer excellent bond strength with laminating
film.
Customers can run DuraPaper and other Teslin-like materials from any tray. The recommended
weight setting is 221-300 gsm for optimum transfer and fusing. In this weight range, automatic

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duplexing is not supported; however, duplex images can be generated manually by printing side one
first and then returning the prints to the paper tray in the correct orientation (imaged side down) and
then printing side two.
Labels
Label stocks may be run from internal trays 1 and 2, as well as optional SFM trays 3 and 4. When
designing label applications, it is recommended to leave 1/8” border between solid color images and
die-cut lines. Many different configurations and templates are available. Refer to the Recommended
Materials List or your Xerox Supplies Representative for ordering information.
Heavyw eight Coat ed Work around
When printing on heavyweight coated papers (250-300 gsm), especially 2-sided with heavy toner
coverage, some “blocking” may occur. This is when sheets stick together in the output device and the
image peels away when separated. Heat retained by the paper and toner, and pressure from the
weight of the stack, are the leading causes. If this problem is encountered, there are several ways to
minimize the likelihood of occurrence.
1) Position an 8” diameter fan such that it cools and fluffs the output stack on the OCT (offset
catch tray). This may affect the integrity of the stack.
2) Run job to the offset catch tray, remove small stacks (25 sheets at a time), fan the sheets, and
then re-stack. This would require operator intervention.
3) Run stock SEF (short edge feed) with and without the fan. Printing speeds will be reduced.
Tint ed St oc k s
When running tinted stocks, color rendition will be dependent upon the shade chosen. Although the
DFE (digital front end) RIP (raster image processor) has the ability to calibrate to a white background,
it cannot do so with tints. The resulting printed colors may not match those selected on your screen.
Please verify that color rendition meets your requirements before committing to a production scale
run.
Window Dec als
Window decals are a composite product involving a film material and backing sheet. When the
backing is peeled away, a tacky surface combined with static allows the material to “cling” to glass
and other smooth surfaces. Applications include signage as well as window displays. For best
results, it is recommended to run window decals from any tray in the 187-220 gsm range. Due to the
nature of this product, static may limit it’s ability to stack neatly in the OCT (offset catch tray) or other
output devices. Also, this material retains a great deal of heat. Use caution when removing printed
stacks and empty stacking devices every 25 – 50 sheets to avoid blocking.

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Cut Qualit y & Paper Trim m ing Rec om m endat ions
Proper cutting of the paper to be used is critical. Mills offering paper in cut sizes will convert papers
using state of the art rotary slitters on high performance systems. Slitting and edge trimming by
circular knives with dust removal at every cutting point prevents contamination issues.
Trimming papers from parent sheets to get the desired output size may generate dust if dull knifes
are used. The recommendation is to delay trimming until printing has been finalized to prevent paper
dust generation and contamination issues.
If pre-print trimming is imperative, special care must be taken to ensure that any loose fibers are
removed before the paper is loaded into the machine trays. By thoroughly fanning the sheets and
wiping down the edges with a cloth, most of these contaminants can be removed; however, an in-
house maintenance program, including blade maintenance and dust removal with a vacuum or air
system, will be key in achieving good results.
Carbonless Papers
Carbonless papers are pressure sensitive papers that are coated with several functional coatings.
These coatings promote image transfer through the form set and enable the form sets to separate
appropriately after padding with a special adhesive. Xerox has enabled this application on DocuColor
6060 by combining a unique paper coating chemistry (Xerox Premium Digital Carbonless), with a
software “switch” designed to disable key machine components reducing the frequency of service
calls. Since each supplier of xerographic carbonless papers has developed their own chemistry, the
following procedure does not enable any other carbonless product.
•Contact your local service representative to ensure machine software has been upgraded to V
2.0 (printer V 2.2.5) or later.
•Enter machine “tools” mode (Refer to System Administration Guide for more information)
•Touch “Machine Defaults 3” tab on the machine User Interface (UI)
•Enter Chain Link 700-920 on the UI key pad (hyphen will be added automatically)
•Press “Start” to display “Current Value”. “0” (on) will be displayed.
•Touch “1” on the UI key pad. “1” (off) appears in “New Value” box.
•Touch “Close” and then “Exit Tools” on the UI touch screen
Note: This procedure must be performed at the start and end of each Xerox Premium Digital
Carbonless Paper run. Failure to do so will lead to premature component failure.
As this machine is equipped with a friction feed device, the sheet sustains a small scuff mark visible
on the CF and CFB sheets as it is fed from the trays.
The quality of image laid down by the printer may not be as good as typically seen with plain paper
sheets designed for color xerography, and areas of halftone / solid coverage may degrade more

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quickly. Please ensure that print quality meets your requirements before committing to extended
usage.
Lastly, Xerox Premium Digital Carbonless paper may react with the residual debris left behind by
non-Xerox branded carbonless materials resulting in significant and immediate contamination of
machine components. If a non-Xerox branded material has been run prior to running Xerox Premium
Digital Carbonless it is suggested that all components, in direct contact with the paper, be replaced to
ensure trouble free operation.
2-Sided Print ing on Heavyw eight Papers
It is possible to automatically print two-sided documents on Xerox Heavyweight (>220 gsm) papers
with DocuColor 7000 / 7000AP / 8000 / 8000AP systems by setting the machine to the 186 – 220
gsm weight setting. While this weight setting is slightly less than the actual basis weight of these
papers, it has been determined through testing that performance will not be compromised. There are,
however, some adjustments that may be required.
Custom Paper Profiles (2nd BTB) will allow you to adjust machine parameters to achieve optimum
Image Quality, and color rendition. This adjustment should be performed at regular intervals, and
more frequently for heavier weight papers, to maintain consistent output. Refer to the DocuColor
8000 / 7000 System Administration Guide for instructions on programming these settings.
The following settings should be used for reference only. Environmental factors and job parameters
may require additional adjustment.
2nd BTB Decurler
100# Digital Color Elite Gloss Side 1: 80
Side 2: 80
"B" Simp
"A" Dup
110# Digital Color Elite Gloss
Side 1: 110
Side 2: 100
"B" Simp
"A" Dup
100# Digital Color Elite Silk
Side 1: 110
Side 2: 70
"B" Simp
"A" Dup
110# Digital Color Elite Silk
Side 1: 100
Side 2: 90
"B" Simp
"A" Dup
12 pt. Supreme Gloss Side 1: 90
Side 2: 110
"A" Simp
"A" Dup
100# Graphic Xpressions Side 1: 90
Side 2: 100
"B" Simp
"A" Dup
Also, Xerox Digital Color Supreme Gloss 12pt. must be loaded in the tray such that the uncoated side
is imaged first (up) to avoid scratching the soft coating material.
Media and Applic at ions Not in t he Rec om m ended Materials List
DISCLAIMER: The information in this section is intended only for those who have a specific
request to use a special material or application in the DocuColor 8000 / 7000 that is not on the
Recommended Materials List. It must be understood that running these types of jobs may
result in degraded image quality, an increase in jams, an increase in service calls, or, in the

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most severe case, damage to the machine. In addition, Xerox cannot provide support for these
materials.
Doc uColor 8000 / 7000 out put Inc om pat ibilit y w it h Doc uTec h Syst em s
A few applications require solutions in which paper needs to be run in a color system with a second
printing pass through a black and white printer. Our experience with the Xerox DocuTech line of
products has not been positive. Serious contamination issues have been verified when running
DocuColor 8000 / 7000 output on a Docutech 135 system due to toner composition differences and
the difference in fusing temperatures.
If done in the opposite direction (ie. Black and white pass first followed by a DocuColor 8000 / 7000
pass) smeared images will occur since the fuser oils used are different in these two systems.
Some systems will have an interposer or inserter drawer where cover or insert materials can be
loaded. DocuColor 8000 / 7000 output can be fed and inserted within a job using DocuTech systems
equipped with an interposer since they do not have to pass through the fusing unit. Residual fuser oil
may, however, still lead to feeding and registration difficulties.
Pre-print ed Form s and Printing Ink s
Choosing the correct ink is the first step in designing forms that will function well in Xerox printers.
The forms should be printed with inks that cure well, are not tacky, and do not offset (transfer from a
printed sheet onto other surfaces). In choosing an ink, form printers must consider the conditions to
which the forms will be exposed while passing through the printer, taking into consideration the heat,
pressure, and dwell time during which the pre-printed paper is subjected to both.
In the past, good performance has been reported when using inks of the oxidative type, those that
are cured using ultraviolet (UV) light, and laser-safe inks. Oxidative inks may require several days to
harden satisfactorily, laser inks usually cure within 24 hours, and UV inks change immediately from
liquid to solid upon exposure to an ultraviolet light source. Special care must be taken to ensure that
pre-printed materials, for use in laser printers, use inks that do not offset. It is recommended that you
work closely with suppliers to verify that requirements are understood and met.
Drying agents are sometimes sprayed on printed sheets as they exit the printing press in an effort to
reduce the possibility of offsetting onto one another. These materials (typically powders) can become
contaminants when carried through Xerox printers. You should avoid using forms that have been
sprayed with these materials.
Always test the application before running production as liability ultimately lies in the hands of the
customer.
GBCand VeloBindPapers
GBC paper is a 19-hole drilled paper ready for binding using the spiral wound GBC binding system.
VeloBind paper is an 11-hole drilled paper used for comb binding.
The guidelines for loading and running jobs using GBC or VeloBind papers are the same as those for
other drilled papers. Misfeeds may occur more often with GBC and VeloBind papers than with