1、Designation: F 1856 04e1Standard Practice forDetermining Toner Usage for Printer Cartridges1This standard is issued under the fixed designation F 1856; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A nu
2、mber in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.e1NOTESubsection 8.3 was editorially corrected in January 2007.1. Scope1.1 This practice covers a procedure to determine the weightof toner used for
3、 printing a single page derived from anelectrophotographic process. The practice uses a printer texttarget specifically developed for each printer for a pagecoverage of 5 6 0.5 % of the printable area. This practicerequires specific tools and skills for disassembling and reas-sembling printer cartri
4、dges.1.2 The values stated in inch-pound units are to be regardedas the standards. The SI units given in parentheses are forinformation only.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard
5、to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2F 335 Terminology Relating to Electrostatic Imaging3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 toner usa
6、geamount of toner (milligrams per print)removed from the toner hopper during the printing of one page.4. Summary of Practice4.1 An electrophotographic printer utilizing an all-in-onesupply cartridge is set up to determine the toner used for asingle page of print. A test page with 5 6 0.5 % text prin
7、toutput for the control cartridge is used. 5 % text coverage ofthe printable area is the industry accepted average pagecoverage for office printers. The all-in-one cartridge is disas-sembled to separate the toner hopper from the waste tonercollection bin. The weight of the full toner hopper is measu
8、red.A specified number of prints are created on the printer usingthis cartridge and the weight of the used toner hopper ismeasured. The toner used for one print is calculated. Inaddition, the results can be used to estimate the total page yieldof the toner cartridge. A comparison can be made between
9、 thetoner used for the control cartridge and any other cartridgetested using this practice.5. Significance and Use5.1 This practice can be used for the evaluation of new andremanufactured toner cartridges and their respective compo-nents used in an electrophotographic process.5.2 This test is suitab
10、le for research and development, andquality acceptance evaluations.6. Interferences6.1 Relative humidity can impact test results. The testshould be performed at a controlled temperature and humiditywithin the operating humidity range of the printer. This isusually between 20 and 80 % RH.All equipmen
11、t, and materialsshould be conditioned in the same temperature and relativehumidity for at least 24 h prior to testing.6.2 In comparative cartridge test the same test target (data)and printer must be used. The number of characters and thetype of characters, font and font size have a direct affect ont
12、oner consumption.6.3 The test pattern should not produce uneven wear on thecartridge components as this will affect the test results.6.4 Printer related items such as the power supply, densitycontrol settings, resolution enhancements, toner saver settings,economy mode settings, and laser optics may
13、impact imagequality and toner consumption.6.5 Test printers should be in good mechanical and electri-cal condition. Preferably, printers with a continuous history ofpreventative maintenance should be used. Any printer failurescan invalidate the test.1This practice is under the jurisdiction of ASTM C
14、ommittee F05 on BusinessImaging Products and is the direct responsibility of Subcommittee F05.04 onElectrostatic Imaging Products.Current edition approved May 1, 2004. Published June 2004. Originallyapproved in 1998. Last previous edition approved in 1998 as F 1856 98.2For referenced ASTM standards,
15、 visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 194
16、28-2959, United States.6.6 A calibrated balance must be used to obtain weights.6.7 The techniques used for cartridge disassembly shouldavoid toner spillage and ensure accurate toner weight measure-ments.7. Equipment and Materials7.1 Electrophotographic Test Printer, suitable for testingpurposes.7.2
17、Printer Data System, capable of supplying a 5 6 0.5 %text page for the specific test printer based on the controlcartridge (average original printer manufacturers cartridge).This 5 6 0.5 % test target data can be created by printing textand determining the page coverage with a calibrated scanningor
18、digital display device. Software and a computer program tocalculate the coverage will be required. The amount of text ischanged and the process repeated until a 5 6 0.5 % coverageof the printable area is obtained. The printable area is 8 by 10in. (0.203 by 0.254 m) making is usable for standard lett
19、er andA4 paper sizes. The specific test data must be created for eachprinter model and manufacturer. Test input devices and 5 60.5 % text test target data3for specific printers are available.7.3 Reference Cartridge, that produces a 5 6 0.5 % cover-age text page on the specific test printer.7.4 Test
20、Cartridge, designed for use in the test printer.7.5 Balance, capable of measuring the cartridge toner hop-per with a precision of 60.1 g and readability of 0.1 g.7.6 Conditioned Paper, that meets the requirements of theprinter. This same paper type and manufacturer should be usedfor all comparative
21、tests.7.7 Special tools and instructions for disassembling andreassembling the printer cartridge.8. Procedure8.1 Select the cartridge to be tested. Remove the seal, if any.Separate the hopper from the waste bin and measure the fullhopper weight, Wfhin grams.8.2 Measure and record the temperature and
22、 humidity in thetest area.8.3 Set up the test printer. Set the printer for the “factorydefault” print mode. Do not use the “toner saver mode.” Setand record the printer attributes that can affect the print quality.The attributes may include: density, resolution, resolutionenhancement, etc. Use a sep
23、arate, known good cartridge toverify that the printer is working properly. Check that the 5 60.5 % test target source is operating.8.4 Run 1000 sheets of the conditioned paper using the testtarget data specific to the test printer.8.5 Remove the cartridge from the printer, separate thehopper from th
24、e waste bin and measure in grams the usedhopper weight, Wuf.9. Calculation9.1 Calculate the toner used and the toner usage per page:toner used (g) = (WfhWuf)toner used per page (g) = (WfhWuf)/1000and:toner usage (mg/page) = (WfhWuf)10. Report10.1 Report test conditions (temperature and humidity),mea
25、sured weights, cartridge identification, printer setup con-ditions, printer identification, test target data identification andthe toner usage.11. Interpretation of Results11.1 The toner usage determined by this test method relatesonly to the conditions used. It is useful in making comparisonsbetwee
26、n cartridges. Variations can be expected according to theinterferences described in Section 6.11.2 For longer life cartridges with expected print count inexcess of 2000 prints some variation in the toner usage may beexpected. To report an estimate of the number prints for theavailable toner, an aver
27、age of several tests is required. Forexpected usage less than 8000 prints, run the test (Sections 8,9 and 10)at13 and again at23 of the total expected prints. Forexpected usage greater than 8000 prints, run the test (Sections8, 9 and 10)at14 ,12 , and again at34 of the total expectedprints. Use the
28、average of the test results for calculating theestimate.11.3 The average page yield for the cartridge can beestimated by dividing the total weight of the available toner bythe average toner usage per print. The available toner isdetermined by calculating the difference between the initialtoner weigh
29、t and the remaining toner weight at end of usableprinting.12. Keywords12.1 cartridge; electrophotographic; laser printer; non-impact printer; toner; toner usage3The sole source of supply of the apparatus known to the committee at this timeis Static Control Components, Inc. 3010 LeeAvenue, Sanford, N
30、C 27330. If you areaware of alternative suppliers, please provide this information to ASTM Interna-tional Headquarters. Your comments will receive careful consideration at a meetingof the responsible technical committee,1which you may attend.F185604e12ASTM International takes no position respecting
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