Educate Your Customers
With This Collateral Marketing Piece Prepared by HP. Download
BLI Certified Brands
Boise X-9 Multi-Use Paper
Diverse Earth paper
GP Spectrum Multi-Use Paper
Member's Mark - Sam's Club
Antalis - Europe
WB Mason Blizzard
Copamex - Latin America
Domtar - North America
Georgia Pacific - North America
HP - Worldwide
Inapa - Europe
International Paper - Worldwide
JK - India
Metsa Board - Worldwide
Mondi - Europe
Papyrus - Europe
Staples - Americas
Stora Enso - Europe
Suzano - Latin America
Could Your Paper be Bad for Your
Moisture | Curl | Resistivity | Porosity | Smoothness | Stiffness | Formation |
Caliper | Basis Weight | Coefficient of Friction | Brightness | Opacity |
Metrofuser has repaired over 500,000 parts and printer devices. Metrofuser’s testing department prints over 5 million pages on 2.5 million pages of paper per year. Over the last 11 years the company has seen the effects of both good and bad paper.
Your choice of paper is as important as the toner cartridge. Metrofuser recommends paper that carries a domestic manufacturer’s performance / satisfaction guarantee, backed up with independent 3rd party validation BLI certification (i.e. Buyers Lab) and technical support if needed. Just about all the paper mills have lines of paper that have the BLI Certification including Boise,Georgia Pacific and International Paper. BLI Certified paper can also be found as brands such as, Yes, Future Multitech, Costco, Hammermill and many others.
Another option is ColorLok® paper. It provides outstanding quality and is available world-wide from a growing number of paper manufacturers. ColorLok® papers are sold under various brands through retail, Internet, catalog, and contract stationers. In addition to experiencing significantly fewer paper jams and other faults, ColorLok® copy paper leaves behind less dust and toner contaminants, which contribute to long-term printer reliability and image quality issues. Read More About The Science Behind ColorLok®
An extensive test conducted by Buyers Lab for HP found that certain papers can cause reliability and image quality problems in laser printers. The test encompassed nearly 2.5 million pages on 50 printers with five paper types. All 30 of the printers run with papers carrying the ColorLok® logo, which signifies that they meet a range of quality standards, produced 50,000 pages—a combined total of 1.5 million pages—with no reliability or image quality issues. In fact, they operated for up to nine times longer than printers running the paper types with large-size particle mineral fillers that do not meet the ColorLok® standard. Printers running ColorLok® papers also experienced more than four times fewer paper jams per paper type and maintained good quality output for up to three times longer than the same printers when run with the low-quality paper types. In addition, the ColorLok® papers left printers cleaner on the inside, leaving behind less paper dust and toner contamination that could potentially contribute to reliability issues.
Although today large-size particle papers are manufactured and primarily sold in Asia, where pulp resources are scarce, HP research projects a significant increase in the share of papers produced in Asia in the next decade. HP developed the ColorLok® standard, which a number of major paper manufacturers support, to ensure high customer satisfaction with its laser and inkjet printers. To read the full report
Standards for MPS Providers
Managed print services are an all-in-one solution for large fleets providing maintenance, toner and devices. Typically, however, the acquisition of paper is left to the customer. While MPS providers have the financial liability and performance accountability for uptime, they have little control or knowledge with regard to the quality of the paper. Paper certifications allow MPS providers to update contracts with specifications regarding standards.
Here are just some of the many paper variables that effect your printer's reliability and image quality.
1. Moisture: Amount of water content in sheet.
• Poor toner adhesion
• Blotchy look/print mottle
• Image deletions
• Post-image curl
• Multi-feeds/misfeeds due to static build-up
• Image deletions due to poor toner transfer
• Toner scatter
Digi-know? Papers engineered for offset presses typically contain up to 6% moisture. Reprographic papers are engineered for digital presses and typically contain 4.5% moisture. In general, papers with a high moisture content (over 5%) show a high propensity for curl in digital equipment ‹ so using paper formulated for digital presses means fewer issues.
2. Curl: When a sheet takes on a curved quality, losing its "flatness."
Too Much Manufactured Curl
• Feeding problems
• Transport problems
• Post-image curl
Too Much Post-Image Curl
• Transport problems
• Delivery (roll-over jams) and post-image finishing issues
• Duplex (second side) jamming
Digi-know? Paper tends to curl toward the heat of the fuser. Paper that's manufactured with a slight built-in curl away from the heated side reduces the overall post-image curl.
3. Resistivity: Ability to hold a static charge.
• Image distortion because the charge may pull toner where it does not belong.
• Poor or incomplete toner transfer, because the charge dissipates from the paper too quickly to complete the toner transfer completely
Digi-know? Paper is manufactured to the ideal moisture content, and should be kept in the ream wrap to protect it from humidity. Resistivity is greatly influenced by the sheet moisture.
4. Porosity: Characteristic of paper that allows liquids or vapors to seep through it.
• Misfeeds in vacuum-fed systems
• Less likely to have misfeeds or multi-feeds.
Digi-know? The terms "porosity" and "density" are often used interchangeably, but they're actually opposites. A more porous sheet has low density (open formation); a less porous sheet has high density (tight formation).
5. Smoothness: The evenness of the surface of the paper.
• Feed and transport problems (sheet slipping in paper path)
• Poor toner adhesion; toner incompletely transferring and fusing to sheet
• Toner voids and uneven lay-down (mottle)
Digi-know? High resolution laser technology requires an extra-smooth sheet for even print in large-area screens and solids. This keeps toner from getting lost in "hills and valleys," thereby reducing print and gloss mottle. Smoothness is generally measured on the Sheffield scale, with lower numbers (30 to 125) representing smoother surfaces.
6. Stiffness: Force required to bend paper through a specified angle.
• Limits the sheet's ability to negotiate tight bends in the paper path.
Not Stiff Enough
• Sheet buckling/rolling over in the paper path
• Inability to accommodate finishing
• Limp feel
Digi-know? Stiffness can vary from machine direction (MD) to cross-machine direction (CMD) and is typically stiffer across the grain due to the resistance of the paper fibers to bend across themselves.
7. Formation: Uniformity of the sheet.
• Image deletions due to cockling of the sheet
• Print mottle
• Increased show-through
• Uneven toner transfer
• Limp feel
• Even toner lay-down
• Reduced print mottle
• Visually pleasing
Digi-know? Hold a sheet up to the light and look through it. If you see big fluffy "clouds," chances are solid-coverage areas will not look uniform. This can also contribute to show-through in areas where there is lower or uneven fiber distribution in the sheet.
8. Caliper: Thickness of a sheet.
• Poor toner adhesion
• Transport jams
• Smeared images due to toner disruption before fusing
• Multiple feeds
• Limp feel
Digi-know? Extreme caliper variations in a sheet can cause print quality issues due to varying degrees of toner transfer. Caliper variations within a single sheet can cause image deletions or a mottled appearance.
9. Basis weight: Weight in pounds of 500 sheets cut to a given standard size for the paper type.
Equipment Setting Is Lighter Than Actual Sheet Weight
• Toner ghosting and deposits in unimaged areas, due to toner flaking off sheet during paper transport and contaminating internal press parts
• Solids may look dull and muted, due to incomplete toner melting
• Poor toner adhesion — toner flakes or rubs off the sheet after imaging
Equipment Setting Is Heavier Than Actual Sheet Weight
• Shortened lifespan of some press parts
• Increased toner gloss due to extra heat and/or pressure applied to the sheet during fusing of the toner
Digi-know? Color and solid images look better on heavier basis weights. Normally 24–28 lb bond is recommended to eliminate sheet cockle, because toner shrinks as it cools. (Typically, toner is a polymer made from plastic.)
10. Coefficient of friction (COF): Force needed to start a sheet feeding, as well as drag a sheet across the one underneath it as it continues to feed.
• May cause misfeeds or no feeding
• May cause multi-feeding
Digi-know? COF is made up of two forces: static and kinetic. Static is the force needed to start the first sheet moving. Kinetic is the force needed to keep the sheets moving. Presses can be more tolerant of variations in smoothness as long as the COF is controlled.
11. Brightness: Reflectance or brilliance of paper
• Sharper contrast
• Colors appear more vivid
• Muted look; less "pop"
Digi-know? Brightness may be used to differentiate premium sheets from ordinary grades, to influence price, and to increase sales. Customers tend to prefer brighter, whiter sheets. GE Brightness is the measurement generally used in the U.S.; ISO Brightness is used in Europe.
12. Opacity: A sheet's show-through properties
• Less show-through for duplex printing
• Print mottle/poor formation exaggerated
• Show-through on duplex printing and heavy color usage
Digi-know? Ink hold-out also impacts show-through. The greater the ink hold-out, the less the show-through.
13. Dimensional stability: Change in sheet dimensions due to absorption and evaporation of moisture.
• Cockled and/or wavy sheet, made worseafter imaging due to the uneven drying of the sheet in the fuser
• Image deletions and toner voids — causedby puckers that prevent even contact with photoreceptor, resulting in incomplete toner transfer when duplexing
• Poor sheet register, which can affect color registration on equipment without a transfer belt
• Less reactive to moisture pick-up and loss, therefore less reactive to environmental conditions
Digi-know? Paper fibers/wood fibers (pulp) absorb water easily (that's why they're used in diapers). It's best to keep paper wrapped in its ream packaging to protect it from humidity, which leads to moisture absorption.