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IBM InfoColor 70 and 3170 Print Media Guide1
Purpose of this manual3
Requesting a Print Medium Test5
Importance of Print Medium Testing ................................................................................................................ 5
Basic paper types........................................................................................................................................... 11
Uncoated paper ......................................................................................................................................... 11
Speciality paper ......................................................................................................................................... 12
Paper properties............................................................................................................................................. 13
Guidelines for Print Medium Quality Inspection15
Check Paper Quality ...................................................................................................................................... 15
Guidelines for Print Medium Storage and Handling....................................................................................... 16
Roll inspection................................................................................................................................................ 17
Paper Waste During Printing and Waste Reduction (3.02 code or higher).................................................... 18
Start of a Print Job..................................................................................................................................... 18
Auto Mode............................................................................................................................................. 18
Paper Quality............................................................................................................................................. 19
Gloss too low.................................................................................................................................................. 25
GEM hot offset ............................................................................................................................................... 26
Worm like streaks........................................................................................................................................... 26
Wrinkling in the PRS ...................................................................................................................................... 27
Non-uniform transfer quality across the web.................................................................................................. 28
Micro-blistering from the fuser........................................................................................................................ 29
Description of paper-dependent parameters31
List of IBM Recommended Print Media for IBM 3170 and InfoColor 70 35
A guide to have print medium tested through a certified agency
To provide information on basic paper quality requirements for the InfoColor 70 Printer.
To provide information on proper paper handling and storage
To provide information about how paper is tested at the certified agency.
To provide information on the basic paper types and properties.
To assist in understanding the media limitations of InfoColor 70 Printer.
To provide Artifact Samples to assist in print quality troubleshooting.
Purpose of this manual
3
4
IBM InfoColor 70 and 3170 Print Media Guide
•
•
•
•
Requesting a Print Medium Test
Importance of Print Medium Testing
InfoColor 70/3170 Print Medium testing is needed to adjust and optimize a set of control parameters
to obtain the best print quality.
Using a tested and supported print medium offers you the following advantages:
Stable print quality
Minimum quantity of wasted paper
Minimum printing problems, such as paper jams
Minimum contamination of the InfoColor 70/3170 print engine; thereby reducing machine intervention and frequency of service.
Procedures
1. Before considering a print medium test, request the latest IBM InfoColor 70 Print Media List from
your account representative. Make sure that there is not a similar stock on this list before you initiate a request for a test.
2. Make sure there is full support from the Medium Manufacturer.
3. Contact IBM certified Medium Test Agencies
For US region contact RIT (Lisa Ford, Tel: 716-475-5593, Fax: 716-475-5250, Email: LMFASP@RIT.EDU).
For EMEA regions, contact Pira (Mike Chamberlain, Tel: 44-1372-802000, Fax: 44-1372-802238/
46, E-mail: paper@pira.co.uk or printing@pira.co.uk)
4. The test will cost the medium manufacturer or the customer about $240/hour. It usually takes
about 2.5 - 3 hours for one medium test. The turn around time is about 2 to 6 months depending
on the agencies current work load. A paper may also be tested on an emergency basis with a
shorter turn around time for a cost premium.
5. Paper Test Agencies will request the following information from the medium manufacturer through
two different forms as a pre-requisite for testing. The following is a sample of these forms:
Requesting a Print Medium Test
5
Form 1: Substrate Qualification Data Collection Worksheet
Company Contact
Product Name:
Manufacture:
Name:
Title:
Address:
City:
State:
Country:
Postal Code:
Telephone Number:
Fax Number:
Email:
Paper ClassificationX
Uncoated Super Calandered
Uncoated Calandered
Uncoated Uncalandered
Uncoated Pigmented
Matt Coated
Satin Coated
Glossy Coated
Single-sided Cast Coated
Recycled Coated
Latex Impregnated Paper
Film
Others (Please specify)
Material Properties (Fill-in or attach
documentation)
Grammage (GSM)
Caliper(micron)
Brightness (ISO%)
Opacity(%)
6
IBM InfoColor 70 and 3170 Print Media Guide
Smoothness (PPS micron/Sheffield units)
Moisture Content (% AH)
Certificate of Non-toxicity (Please Attach)
Guarantee Splice Free
Marketing Contact:
Postal Code:
Telephone Number:
Name:
Title:
Address:
City:
State:
Country:
Technical Contact:
Distribution List (Please attach)
Fax Number:
Email:
Name:
Title:
Address:
City:
State:
Country:
Postal Code:
Telephone Number:
Fax Number:
Email:
Requesting a Print Medium Test
7
•
) •
•
•
•
•
Form 2: Specifications for Print Media Qualification on the IBM InfoColor 70 Print Engine
Roll Dimensions
DescriptionDimension (USA)Dimension (EU)
Inner Core Diameter6"-0/+.02150mm+/-.5
Outer Core Diameter7.1"174mm
Maximum Roll Diameter19.7"500mm
Typical Roll Diameter15.75"400mm
Maximum Roll Weight88lbs40kg
Roll Width12.6"320mm
Roll Specifications
The paper must be free from splices, tears, dents, holes and other physical defects. The paper
should be flush with the core and must not slide axially over the core.
Paper Weight
60 to 250GSM are specification limits for InfoColor 70 engine.
200GSM and above require GEM unit.
Temperature Resistance
The paper must withstand prolonged (1 hour minimum) heating to 100 ° C and heating to 200 ° C for
5 seconds without physical or chemical degradation. Under these conditions, the paper should not
release any toxic substances.
Demonstrated Paper Properties
The following data must be submitted for each substrate to be tested.
A certificate of non-toxicity is required. This must contain the following statement: “The print
medium will not release toxic gasses when heated up to 200 ° C during 5 seconds and during
prolonged heating at 100 ° C. ”
Note: The above properties can be tested at the Agencies for a fee.
8
IBM InfoColor 70 and 3170 Print Media Guide
Test Results, Medium Performance and Script
Once the print medium is tested, the performance of the medium is reviewed. All the information of
the paper and scripts will be shared information.
The tested print medium will be rated at 1A, 1B, 2, 3 performance lev el. These performance levels are
defined as follows:
1A – Good print quality is easy to obtain and rather stable without any finishing or stacking problems.
1B – Good print quality is not very easy to obtain. It requires close monitoring to maintain good
and stable print quality. No finishing or stacking problems.
2 – Minor print quality problems and/or finishing problems.
3 – Severe print quality and finishing problems.
IBM has chosen to support 1A level media only. IBM allows customer to use 1B level media and a
select few others at their own risk. IBM provides these scripts to its customers through IBM Service
Engineers. They can update the InfoColor 70 with the latest print medium scripts upon your request.
Rush T esting
In a situation where paper needs to be tested in a short period of time, paper test agencies may offer
testing on rush basis for a surcharge. IBM may also offer medium testing under some limitations. To
qualify for testing at IBM, you need to contact y our account manager . Your account manager will need
to petition the marketing organization for an evaluation and approval. IBM marketing will evaluate the
following key areas:
1. Does IBM already provide support for a similar stock?
2. Does this print medium open a new market for InfoColor 70 print business?
3. Does this new print media bring additional IBM sales opportunities?
If you are approved for testing at IBM, you will need to submit the same pre-requisite medium information and prepare a medium sample (3 rolls) just as you would do for certified agencies. The turn
around time at IBM is usually about 3 to 6 weeks depending on work load.
Requesting a Print Medium Test
9
10
IBM InfoColor 70 and 3170 Print Media Guide
Basic Paper Types and Their Properties
Basic paper types
In order to understand fully what requirements have to be met by the paper, it is important that you
know how paper types are distinguished:
.
Uncalendered
Uncoated paper
Paper, the surface of which is not covered with an additional coating. It is only composed of pulp, containing cellulose fibers, fillers, binders, pigments, etc.. The various types of uncoated paper are listed
in the table below.
Uncalendered paperPaper which was not submitted to the
calendering process. See below.
Calendered paperDuring the calendering process the paper
passes through a number of calendering rolls
made of steel, in order to make it more compact
and smoother by increasing influences of
temperature and pressure on the paper.
Supercalendered paperDuring the supercalendering process the paper
passes through a number of calendering rolls
made alternately of steel and cotton, in order to
make it even more compact and smoother.
Basic Paper Types and Their Properties
11
Coated paper
Paper, the surface of which is covered with a coating, in order to alter the surface properties of the
original paper such as smoothness, gloss and water resistance.
Gloss propertyDescription
Matt coated paperCoated paper, which was not submitted
to the calendering process, or which
passed through only one pair of
calendars.
Satin coated paperCoated paper, which was submitted to
the calendering process.
Depending on the production method, coated papers can also be divided as follows:
Speciality paper
Paper, which has special properties, intended for special purpose use.
Glossy and high-gloss coated
paper
Coated paper typeDescription
Machine coated paperCoating is applied by means of a dosing
Cast coated paperThe gloss of the coated paper is
FeatureDescription
Coated paper, which was submitted to
the supercalendering process.
roll and the excess coating is removed
with a scraper. The gloss is achieved b y
calendering.
The coating thickness is variable on the
scale of the paper’s relief.
obtained by passing the paper over a
very smooth chromium roll. This results
in very high-gloss coated paper.
The coating thickness is uniform.
Embossed paperP aper with an amount of relief which is
Recycled paperPaper that is made of pulp containing
Tinted and Colored paperPaper that is made of pulp containing
12
IBM InfoColor 70 and 3170 Print Media Guide
produced by pressing it between a
rotary embosser, i.e. a metal roll
having a embossing pattern.
fibers of paper that has already been
used and to which new fibers are
added. Sometimes all fibers are
recycled.
an amount of colored pigments.
Colored paper has a more saturated
color than tinted paper.
Paper properties
FeatureDescription
Watermarked paperWith a roll similar to an embosser,
paper, that is still v ery wet in the paper
machine, is processed. This causes
thickness variations that creates
different transparency levels.
Translucent paperPaper which is highly transparent due
to a special way of crushing the fibers.
Paper propertyDescription
WeightIn grams per square meter (g/m
2
).
CaliperThickness of the paper expressed in µ m.
Absolute moisture contentThe absolute moisture content is the
ratio between the total amount of water
in the paper and the weight of the paper
(including fibers, fillers, binders and
water).
Relative moisture contentThe relative moisture content equals the
relative humidity of the surrounding air , in
equilibrium with the paper.
SmoothnessA paper property characterized by the
roughness value, i.e. the size of tips and
valleys on the paper’s surface measured
in PPS µ m, Bendtsen, Bekk, or sheffield.
BrightnessTotal amount of visible light reflected by
the paper. Adequate paper brightness is
necessary to provide high-contrast
images.
BulkThe thickness of paper, in terms of the
number of pages per inch for a given
basis weight.
FormationThe formation of paper depends on the
structure of cellulose fibers, which, in
turn, depends on the construction of the
paper machine and the composition of
the pulp.
OpacityOpacity is the opposite of transparency.
The lower the opacity, the more you can
see through the paper. Thin papers
usually have a lower opacity.
GlossThe amount of incident light under a
certain angle that the paper reflects with
the same angle.
Basic Paper Types and Their Properties
13
14
IBM InfoColor 70 and 3170 Print Media Guide
Guidelines for Print Medium Quality Inspection
Check Paper Quality
1. Compare the manufacturer’s Packaging and Reel Formation information with the Paper Roll specifications listed in the following table.
Roll Dimensions
DescriptionDimension (USA)Dimension (EU)
Inner Core Diameter6"-0/+.02150mm+/-.5
Outer Core Diameter7.1"174mm
Maximum Roll Diameter19.7"500mm
Typical Roll Diameter15.75"400mm
Maximum Roll Weight88lbs40kg
Roll Width12.6"320mm
Roll Specifications
The paper must be free from splices, tears, dents, holes and other physical defects. The paper
should be flush with the core and must not slide axially over the core.
2. Paper Formation
Good paper formation is very important to obtaining good print and finish quality. A paper with poor
formation quality produces a high degree of uneven print, mottling, and release of fibers. Non-uniform texture affects the uniformity of resistivity, causing uneven toner transfer to the paper.
3. Moisture content
Moisture content should be consistent from roll to roll and also within a roll. Uneven moisture content can cause unstable print quality. Too high a moisture content can cause wrinkling (especially
with thin paper), curling, and poor print quality. See "Artifact Samples" on page 21.
4. Surface smoothness
A smooth paper surface greatly improves print quality because the contact area between the paper and the imaging drum is more uniform.
Guidelines for Print Medium Quality Inspection
15
Guidelines for Print Medium Storage and Handling
Print Medium for IBM InfoColor 70 needs to be wrapped moisture tight on a continuous basis (including unused partial roll).
Print Medium for IBM InfoColor 70 needs to be stored on a wood shelf, moisture tight, for 48 hours
or longer to allow the paper to reach equilibrium with the printing room environment prior to printing.
The moisture content of the print medium (especially paper) for the IBM InfoColor 70 should not
be allowed to vary. The variation needs to be within ± 0.1%. If the moisture content varies outside
of this range within the roll or from roll to roll, the paper conditioning script may not work consistently.
•
•
•
A
B
PrecautionReason
Store the rolls in their original package
in the printer room for 48 hours or
longer, depending on the difference
between the ambient temperature
and that of the roll. (A)
During long term storage the paper roll
needs to retain the moisture content
as shipped from the paper mill. If the
paper roll is at a different temperature
from that of the print room while
printing, the paper can lose or absorb
moisture, causing print quality
problems.
Store rolls on a pallet, not on a cold or
warm surface. (B)
A roll containing warmer or colder
areas cannot be conditioned uniformly
in the paper supply (PRS) of the
InfoColor 70.
C
Cold
Moist
Hot
Dry
Store rolls under normal ambient
conditions. Av oid extreme temper ature
and moisture conditions. (C)
Remove the roll from the paper supply
of the machine after printing and wrap
the roll in its original package.
16
IBM InfoColor 70 and 3170 Print Media Guide
If the rolls are stored under extreme
conditions, the paper-dependent
parameters will not match the paper
properties.
Over night the outer windings of a
paper roll may attract or lose a
substantial amount of moisture.
Splicing
Always make sure that no adhesive substance is left near the splice on either side of the web.
Apply an additional single-sided tape over the exposed edge if you are making a splice between two
different print media, as shown in the table below. This will minimize jams and broken splices.
Roll inspection
Print medium in paper supplyPrint medium in engine
label stockany medium
filmany medium
any mediumfilm
stiff material (250 g/m
2
paper)any medium
D
C
E
6 in
A
B
15 cm
Core
Wood
screw
Paper
1. Check whether the roll is guaranteed splice free. (A)
a. If there is a factory splice. Stop printing as soon as the splice lies within a few millimeters of the
outer windings.
b. Cut the paper at the splice table and unwind the roll until you can remove the factory splice.
c. Then splice the paper together again using the standard splicing procedure.
2. Check whether the paper is wound around the core tightly to prevent the web from shifting left/
right. (B)
a. If the paper is not tightly wound around the core a wood screw can be used as a “first-aid solu-
tion” to secure the paper to the core. See illustration above.
b. If this situation occurs, contact your paper supplier and report a quality issue.
3. Check for dust on roll sides and surface.
Note: Do Not put the brake onto the roll before you have removed any dust.
a. Remove dust from the sides of the roll using either an adhesive rubber roller or a vacuum clean-
er. (C)
b. Remove dust from the roll surface by removing the first winding of paper. (D)
Guidelines for Print Medium Quality Inspection
17
c. If dust appears on the paper surface of the entire roll, contact your paper supplier.
4. Verify that the paper axle mounting flanges are mounted correctly for the current paper roll inner
core diameter. (E)
Paper Waste During Printing and Waste Reduction (3.02 code or higher)
Paper waste is one of the biggest concerns to the press industry. To reduce the amount of paper
waste to minimum levels, you must first understand the causes of paper waste in the IBM
InfoColor 70. This section explains where paper waste occurs when printing with the IBM
InfoColor 70 and how to minimize it.
Start of a Print Job
Whenever you send a job to print, the printer will always respond by cutting one blank page (size v aries). The printer will then stop and wait for the fuser to reach its set point.
Auto Mode
1. Paper conditioning
Normally, you need to run 18 to 25 blank pages minimum of about A4 size to get the paper conditioning system to reach its required criteria. Some paper types may take a longer time (more paper) depending on the quality of the paper. The Gloss Enhancement Module (GEM) also requires
additional time to warm up. It can take 20 to 25 blank pages minimum of about A4 size (depending
on parameters set) to get the GEM to warm from 30°C to 100°C during a typical first run in the
morning. The GEM starts to warm up at the same time the PRS begins to condition the paper.
Usually it takes a little longer to get paper conditioned when you start the machine and print the
first job of the day. Or right after you have changed to a different paper. This is because the machine has not yet determined the conditioning temperature needed for your specific environment,
specific paper and the initial values to be used.
2. Starting the image
Once the paper has reached the proper condition, and the GEM is at the correct temperature, the
printer will begin imaging. After imaging starts, the machine will cut 18 to 20 pages, of about A4
size, plus two blank pages of the job size before your job will appear at the cutter.
Manual Mode
In Manual print mode the number of blanks pages can be either reduced or increased, depending on
the quality of the material, the experience of the operator, the quality requirements for the print job,
and other factors.
Finishing the Print Job
1. At the end of the last job, the printer will cut 2 blank pages of about A4 size.
2. Between jobs, if the 1st and 2nd jobs are both simplex1 (or both duplex2), the printer will output 2
blank pages the size of the second job. Otherwise, it will output 8 A4 size blank pages plus 2 blank
pages the size of the 2nd job.
3. In the situation that the 2nd job has not been completely downloaded to memory (non-collator
models) before the 1st job is completed, the 1st job ends normally and the printer will output blank
pages until the 2nd job is downloaded and begins imaging. The number of blank pages output depends on the timing of when the second job is ready to begin imaging. The collator model is faster
in this regard when compared to the non-collator model.
1.Must be printing from the same tower (either X or Y).
2.Must have image data on both sides of paper for both jobs. If a duplex job does not have an image on one
side it is treated as a simplex job.
18 IBM InfoColor 70 and 3170 Print Media Guide
Changing the Paper Roll
1. Paper left over from a previous roll also contributes to paper waste. The Operator needs to replace
the paper roll when receiving the "Paper Low" alarm. Close to the end of the paper roll, the paper
tension is not very stable. This condition can cause a print quality problem. The Operator must
avoid running the end of the paper through the printer. Running the end of the paper through the
printer can cause damage to sensitive parts, taking the printer down for several hours while the
damage is repaired.
2. When a new roll is spliced in, the splice must be completely driven through the printer before starting (or resuming) a print job. The engine will stop driving the paper out at about one meter past
the splice. This can be controlled by the operator or by changing the splice_delay value in the
params.set file. If needed, ask your IBM Customer Engineer to change this value.
Operator Skills
Operator inexperience can cause additional unusable prints and/or blank pages due to (but not limited to):
1. Out of specification densities.
2. Out of specification registration.
3. Dirty corona wires causing print defects.
4. Starting to print before the printer is conditioned to the correct temperature and humidity.
5. Reloading the conditioning script when a new roll of the same media is mounted.
6. The GEM is switched On and Off during printing.
7. The job is sent to print before the heating drum reaches its standby temperature.
8. The job is sent to print in the non-GEM mode before the GEM has cooled.
Paper Quality
Environment
Paper Quality can be aff ected b y improper manufacturing, handling, or storage.This can cause unstable conditioning and registration, contributing to the number of unusable prints or blank pages. You
should always protect stored paper in moisture tight packaging. Do not use the paper before it
reaches the same temperature as the print room.
In a humid print room environment, paper can easily become curled, wavy, or even wrinkled depending on its thickness.These conditions can be minimized by reducing the fusing temperature, GEM
temperature, or possibly the U2 value.
Guidelines for Print Medium Quality Inspection 19
20 IBM InfoColor 70 and 3170 Print Media Guide
Artifact Samples
There are a number of common artifacts that can be corrected by optimizing parameters. See the
section “Description of paper-dependent parameters” on page 31 for additional information on
machine/paper parameters.
The following artifact samples (and the suggested actions) should not used until the following items
have been addressed.
1. Has periodic maintenance/cleaning been performed?
2. Has the new medium been acclimated (at least 48 hours)?
3. Is current print quality, on a known paper, good?
If you answered No, to any of the above questions Do Not procede until the machine is clean, functioning properly and the new medium has been acclimated.
ArtifactPage No.
Low-density cloudiness22
High-density cloudiness22
High-frequency cloudiness23
Periodic low-density bands23
Weak cloudiness24
Low-density speckles24
Low-density spots25
Gloss too low25
GEM hot offset26
Worm like streaks26
Wrinkling in the PRS27
Non-uniform transfer quality across the web28
Micro-blistering from the fuser29
Note: This book is being distributed in both hard copy and online versions . If you are using the online
version to print a copy, be aware that your choice of paper and the print quality of the printer
that you use to print it on can affect the appearance of the artifact samples. Use a known
paper, that has excellent print quality characteristics on a printer that does not have any print
quality problems.
Artifact Samples 21
Low-density cloudiness
DescriptionCauseSolution
Light clouds of 0.5 to 1cm in diameter
in a darker surrounding. They have a
reduced density and occur against a
background of normal density. They
are not clearly edged.
High-density cloudiness
low-density clouds
WEB
Transfer currents too low.Increase transfer currents in
steps of 20%.
DescriptionCauseSolution
Dark clouds of 0.1 to 0.5cm in
diameter in a lighter surrounding,
equivalent to the mottle structure of
the paper. They have a normal
density and appear against a
background of reduced density. They
are clearly edged.
22 IBM InfoColor 70 and 3170 Print Media Guide
high-density clouds
WEB
Transfer currents too high.Decrease transfer currents
in steps of 20%.
High-frequency cloudiness
B
DescriptionCauseSolution
Irregular low-density clouds,
especially occurring at the
borders of the web.
Periodic low-density bands
high-frequency clouds
WEB
Duplex currents too high.Decrease positive duplex
currents in steps of 20µA and
negative duplex currents in
steps of 10µA.
low-density band
DescriptionCauseSolution
Low-density bands along the
Duplex currents too low.Increase the positive duplex
web, appearing in duo-color
planes over the whole web
width. They do not occur in
WE
currents in steps of 10µA and
the negative duplex currents in
steps of 5µA.
mono-color planes.
Artifact Samples 23
Weak cloudiness
DescriptionCauseSolution
WEB
Small amount of cloudiness. It
is not easy to determine what
type of cloudiness it is.
Low-density speckles
Transfer current too high or too
low.
Duplex currents too high or too
low.
Decrease or increase the
transfer current in steps of
10µA.
Decrease or increase the
duplex current in steps of 10µA
(positive) and 5µA (negative).
DescriptionCauseSolution
Tiny round speckles ranging
from 1 to 2mm in diameter with
reduced density and sharply
outlined.
24 IBM InfoColor 70 and 3170 Print Media Guide
low-density speckles
WEB
Transfer currents too high.First, reduce IPS/U2.N2 in
steps of 20V.
Decrease transfer currents in
steps of 10µA.
Increasing duplex currents may
also be desirable but not
always necessary.
Low-density spots
DescriptionCauseSolution
WEB
Gloss too low
Spots having an irregular
shape and not sharply
Paper surface too rough.Owing to the cause, this
artifact cannot be eliminated.
outlined.
Artifact cannot be reproduced in this manual.
DescriptionCauseSolution
The gloss is visibly too low.Temperature set points IFX/
T5.N22 and IFX/T6.N22 are
too low.
Increase temperature set
points IFX/T5.N22 and IFX/
T6.N22 of both roll pairs in
steps of 2˚C.
If IFX/T5.N22 and IFX/T6.N22
are too high, GEM hot offset
will appear. Therefore,
decrease temperature set
points IFX/T5.N22 and IFX/
T6.N22 again by 2˚C until the
lines disappear (see "GEM hot
offset" on page 26.
Artifact Samples 25
GEM hot offset
DescriptionCauseSolution
When looking at the gloss of
the image, recurrent very
narrow lines, similar to
scratches or cracks across the
web, are visible.
Worm like streaks
hot offset line
Temperature set points IFX/
T5.N22 and IFX/T6.N22 are
too high.
WEB
Decrease temperature set
points IFX/T5.N22 and IFX/
T6.N22 of both roll pairs in
steps of 2˚C until the offset
lines disappear.
DescriptionCauseSolution
Tiny snakes, especially visible
in duo-colors and on papers
weighing more than 150 g/m2.
26 IBM InfoColor 70 and 3170 Print Media Guide
wormlike streak
WEB
Erase voltage is too high.Consult your service technician
to reduce the erase voltage.
IPS/U2.N2 is too high (if erase
voltage was correct).
To eliminate the worms
completely, reduce IPS/U2.N2
in steps of 20 to 40V
(depending on the quantity and
severity of the worms). Then,
transfer currents must always
be decreased.
Wrinkling in the PRS
DescriptionCauseSolution
WEB
wrinkle
Bent and slanted wrinkles
across the whole web on print
media weighing less than
100 g/m2. Since the wrinkles
occur before the paper is
printed, weak transfer occurs in
and around the wrinkles.
Pre-heating roll temperature is
too high, causing temperature
shock.
Decrease paper conductivity
set point IPS/U2.N2 in steps of
20V, so that the pre-heater’s
temperature decreases.
Transfer currents must also be
decreased.
Artifact Samples 27
Non-uniform transfer quality across the web
paper too dry or transfer current too low
DescriptionCauseSolution
Either transfer quality is good in
the center of the web, and poor
at the border, or vice v ersa. The
image will always be clouded
either in the center (highdensity clouds because of
transfer current too high) or at
the border (low-density clouds
because of transfer current too
low).
28 IBM InfoColor 70 and 3170 Print Media Guide
paper too wet or transfer current too high
Moisture content of the paper
too high.
Inappropriate storage of paper
reels (more moisture towards
the edges).
Due to the limited drying
capacity of the pre-heater, this
artifact cannot be eliminated.
Paper reel cannot be used.
To prevent this problem, wrap
each reel in a moisture-tight
package.
Micro-blistering from the fuser
DescriptionCauseSolution
WEB
Tiny craters are visible (you
can see the underlying toner)
and tangible (the printed
surface is rough and the tops of
the craters can be rubbed
away). Sometimes, only the
underlying toner and small
glossy dots are visible.
Due to the high temperature of
the paper traveling through the
fuser; excess moisture in the
paper erupts like tiny volcanos,
especially in high coverage
areas.
Reduce IFX/T3.N2 in steps of
5˚C until the artifact
disappears.
Artifact Samples 29
30 IBM InfoColor 70 and 3170 Print Media Guide
Description of paper-dependent parameters
The table below briefly describes the paper-dependent parameters that can be found in XPOSE.
ParameterDescription
web
IDR/W2.N2Web tension set point
paper conditioning
IPS/T2.N2Temperature set point of the pre-heating roll before printing.
IPS/T2.N40Temperature set point of the pre-heating roll during standby.
IPS/K2.N2Fixed power applied to the pre-heating roll during start-up of the web (in
% of the nominal power rating of the heating lamp).
IPS/U1.N4Time constant of the SW-integrating controller for U1.
Description of paper-dependent parameters 31
ParameterDescription
IPS/U2.N4Amplification constant of the SW-proportional-integrating controller for
U2.
IPS/U2.N6Time constant of the SW-proportional-integrating controller for U2.
IPS/I1.N2Limitation for the control variable I1 applied during start-up of the U1
controller.
IPS/K3.N6Time that K2.N2 is applied during start-up of the web.
IPS/U1.N2Set point for the initial paper charge for the paper conductivity
measurement.
IPS/U2.N2Set point for the desired conductivity of the paper before printing.
ICN/T9.N8Amount of water flowing through the radiator of the PRS cooling unit.
duplex/transfer
ITR/I4AA.N1Current applied to the back of the paper, exerting an electrostatic force
onto the toner. This force holds the toner against the paper when
loosening the paper from the drum.
ITR/I6AA.N1
ITR/I7AA.N1
The positive and negative current respectively, applied to the pair of
duplex coronas positioned between two successive stations. They
inversely charge the toner transferred to the paper by the lower printing
stations.
fuser
IFX/T3.N2Temperature set point of the web leaving the fuser; when the GEM is
“off”
IFX/T3.N4Temperature set point of the web leaving fuser; when the GEM is “on”
IFX/T3.N10Amplification constant of the SW-proportional-integrating controller for
T3.
IFX/T3.N12Time constant of the SW-proportional-integrating controller for T3.
IFX/T4.N2Constant A of warm-up temperature of fuser elements (= T3 x T4
dependency).
IFX/T4.N4Constant B of warm-up temperature of fuser elements (= T4
dependency).
IFX/T3.N6Constant C of warm-up temperature of fuser elements (= T3
dependency).
IFX/T4.N6Constant D of warm-up temperature of fuser elements (= constant
term).
Factors A to D are the paper-dependent constants in the formula for the
SW calculation of the warm-up temperature of the fuser elements IFX/
T1.
IFX/T3.B4Alarm level that triggers an alarm when the paper temperature IFX/T3
exceeds it.
IFX/T1.N12Temperature set point of the fuser elements during stand-by.
GEM
32 IBM InfoColor 70 and 3170 Print Media Guide
ParameterDescription
IFX/T7.N4GEM on/off
IFX/T5.N22Temperature set point first nip rolls
IFX/T5.N30Pre-set duty cycle first nip rolls -20˚C
IFX/T5.N32Pre-set duty cycle first nip rolls -100˚C
IFX/T6.N22Temperature set point later nip rolls
IFX/T6.N28Pre-set duty cycle latter nip rolls -20˚C
Description of paper-dependent parameters 33
34 IBM InfoColor 70 and 3170 Print Media Guide
List of IBM Recommended Print Media for IBM 3170 and InfoColor 70
Script names match the May 1998 script release for 3.02PES
Please visit http://www.printers.ibm.com/pbin-psc/go?/manuals/ic70m.html for the latest list.
DigiSmooth 6060GSMUncalenderedEnso Group / 201-635-
3530 US
Mitsubishi II60GSMContact IBM Japan for
more information
Nopasat/Nopacolor Digiprint/
Nopacolor Gigi 60
Compat Clearbrite 17#63GSMTranslucent uncalen-
Mitsubishi I64GSMContact IBM Japan for
Digital Publishing Text66GSMCalenderedGeorgia Pacific / 800-
Westminster Trade Book66GSMCalendered with Vellum
Springhill Incentive 100 DP
50#
4CC New 8080GSMSuperCalenderedEnso GroupFACTORY\ UNCOATED\4CCN0801A
Digisuperior 8080GSMCalenderedEnso GroupIBM\ENSO\DISUP080IG
Hokuetsu80GSMContact IBM Japan for
White 180
DCP 190190GSMCalenderedClairefontaineFACTORY\UNCOATED\DCP1901A
4CC New 190190GSMSuperCalenderedEnso GroupFACTORY\UNCOATED\4CCN1901A
Nopasat/Nopacolor Digiprint/
Color Press Smooth Pigmented 200 / Anitec Ausedat
200GSMPigmentedAussedat Rey / Interna-
tional Paper
FACTORY\UNCOATED\CPSP2001B
Rey Zanders Satin 200
Data Copy Digital 200200GSMCalenderedMoDo Paper PSMFACTORY\ UNCOATED\DACOD2001A
Color Copy R 200200GSMCalenderedNeusiedlerFACTORY\UNCOATED\COCOR2001A
Mellotex Smooth Brilliant
Color Press Smooth Pigmented 240 / Anitec Ausedat
240GSMPigmentedAussedat Rey / Interna-
tioanl Paper
FACTORY\UNCOATED\CPSP2402A
Rey Zanders Satin 240
IvoLaser 240240GSMCalenderedSteibach Intermill / Rus-
FACTORY\UNCOATED\IVOL2402A
sell-Field
4CC New 250
250GSMSuperCalenderedEnso GroupFACTORY\UNCOATED\4CCN2502B
* Make sure the Stock is
manufactured after 08/97
Data Copy Digital 250250GSMCalenderedMoDo Paper PSMFACTORY\ UNCOATED\DACOD2502A
Color Copy R 250250GSMCalenderedNeusiedlerFACTORY\UNCOATED\COCOR2502A
Mellotex Smooth Brilliant
250GSMCalenderedTullis RussellFACTORY\UNCOATED\MLSBW2502B
White 250
Text
Galilei Art Silk 130130GSMSatinMetsä-Serla, Kangas Mill
FACTORY\COATED_S\MSGAS1301B
358-1046-45346 Finland
Galilei Art Gloss 130130GSMGlossMetsä-Serla, Kangas Mill FACTORY\COATED_S\MSGAG1301B
MoDo Silverblade Matte 130130GSMMatteMoDo Paper PSMIBM\MODO\MOSIM130IG
Silverblade Gloss 130130GSMGlossMoDo Paper PSMFACTORY\COATED_G\SILGL1301A
Aussedat Rey Zanders Imag-
ing Matte 135
Aussedat Rey Zanders Imag-
ing Gloss 135
Color Press Gloss Coated
135GSMMatteInternational Paper
FACTORY\COATED_M\ARZIM1351A
Zanders
135GSMGlossInternational Paper
FACTORY\COATED_M\ARZIG1351A
Zanders
135GSMGlossAussedat ReyFACTORY\COATED_G\CPGC1351A
135
Royal Digital Gloss 135 (ne w)
* Packed in round box
135GSMGlossKNP Leykam
32-897-19645 Belgium
FACTORY\COATED_G\RDGLS1351A
Royal Digital Silk 135 (new)
135GSMSatinKNP LeykamFACTORY\COATED_S\RDSIL1351A
* Packed in round box
Data Copy Option 135 /
135GSMMatteMoDo Paper PSMFACTORY\COATED_M\DACOP1351A
Imaging Digital Matte 135135GSMMatteZandersFACTORY\COATED_M\DIMAT1351B
Rolltek Gloss Text148GSMGlossRollsourceIBM\ROLLTEK\RT148GLTIG
Lustro Web Dull 100# Text148GSMDullS.D. WarrenIBM\SDWARREN\WA148LWDIG
Aussedat Rey Zanders Imag-
ing Matte 150
Aussedat Rey Zanders Imag-
ing Gloss 150
150GSMMatteInternational Paper
Zanders
150GSMGlossInternational Paper
Zanders
FACTORY\COATED_M\ARZIM1501A
FACTORY\COATED_M\ARZIG1501A
Digimatt/Matte Art150GSMMatteEnso GroupIBM\ENSO\MA150GIG
DigiSilk 150/4CCSilk 150150GSMSatinEnso GroupFACTORY\COATED_S\DIGIS1501B
DigiArt 150/4CCArt 150150GSMGlossEnso GroupFACTORY\COATED_G\DIGIA1501A
Galilei Art Silk 150150GSMSatinMetsä-Serla, Kangas Mill
FACTORY\COATED_S\MSGAS1501B
358-1046-45346 Finland
Royal Digital Gloss 150 (ne w)
150GSMGlossKNP LeykamFACTORY\COATED_G\RDGLS1501A
* Packed in round box
Royal Digital Silk 150 (new)
150GSMSatinKNP LeykamFACTORY\COATED_S\RDSIL1501A
* Packed in round box
Data Copy Option 150 /
150GSMMatteMoDo Paper PSMFACTORY\COATED_M\DACOP1501A
MoDo Dian
Silverblade Gloss 150150GSMGlossMoDo Paper PSMFACTORY\COATED_G\SILGL1501A
Lazulis Brillant 150150GSMGlossSmurfit CondatFACTORY\COATED_G\LAZBR1501A
Imaging Digital Matte 150150GSMMatteZandersFACTORY\COATED_M\DIMAT1501B
Color Press Gloss Coated
155GSMGlossAussedat ReyFACTORY\COATED_G\CPGC1551B
155
Rolltek Gloss Cover162GSMGlossRollsource
IBM\ROLLTEK\RT162GLCIG
612-331-2900 US
Colorprint Castcote 110# Text 163GSMCastcoateNationwide Papers
Amoartes DMMesserliFACTORY\AMOADM1A
Amoartes KMesserliFACTORY\AMOAK1A
ODP Imaging Digital Opaque 100
micron
Teslin SP1000 Digital
* Use with understanding,
254
micron
Contact IBM Service
White PET filmAnitec / International
Paper
White, PorousPPG Industries
412-257-4680 US
FACTORY\ANOPD1001A
FACTORY\TESL1000May experi-
ence print
quality and
finishing
problems
IBM InfoColor 70 and 3170 Print Media Guide54
Readers‘ Comments – We‘d Like to Hear from You
IBM InfoColor 70 and 3170
Print Media Guide
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