1、Designation: F 1225 99 (Reapproved 2003)Standard Test Method forMeasuring the Ribbon Exit Force for Film and FabricCartridges1This standard is issued under the fixed designation F 1225; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revisio
2、n, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method determines the exit force for typewriterand impact printer cartridges using film and
3、fabric inkedribbons.1.2 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 to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to
4、 use.2. Referenced Documents2.1 ASTM Standards:2F 221 Terminology Relating to Carbon Paper and InkedRibbon Products and Images Made Therefrom3. Terminology3.1 Definitions of terms in this standard are in accordancewith Terminology F 221.4. Summary of Test Method4.1 Fully assembled typewriter cartrid
5、ges containing eitherfilm or fabric-inked ribbons are placed on a flat surface. Theappropriate measuring gage is attached to the exit side of thecartridge ribbon and pulled at a constant rate taking 3 to4stomove 1 ft (10 to 13 s to move 1 m) until the gage scale reachesa consistent or repeated maxim
6、um reading.5. Significance and Use5.1 This test method can be used to evaluate the exit forcefor film or fabric typewriter ribbon and impact printer car-tridges from one or more lots produced by one or severalmanufacturers. This test method may be applied to specifica-tion acceptance, manufacturing
7、control, or research.6. Interferences6.1 Before testing, each cartridge should be thoroughlyexamined. A poorly designed or badly fabricated cartridge cancause dragging of the ribbon against it during transport.7. Apparatus7.1 Force GagesAny suitable force gages which arescaled in the ranges from 0.1
8、 to 1 oz (3 to 30 g) and 0.1 to 3oz (3 to 90 g). Gages should be designed to work vertically orhorizontally, depending on the application.8. Fabric Cartridge Procedure8.1 Position the scale on the force gage so as to be readableand on the zero point.8.2 Pull out at least 1 ft (0.30 m) of ribbon from
9、 the exit sideof the cartridge.8.3 Clip the clamp of the force gage to the exit side of thecartridge ribbon.8.4 Place the cartridge on a flat surface in a vertical mannerand hold with one hand. If needed, the cartridge can be held bya vice or other holding device provided it does not compressthe car
10、tridge so as to alter the test result.8.5 Hold the force gage with the other hand, the scaleperpendicular (up and down) with the cartridge directly in lineunder it. See Fig. 1.8.6 Holding the cartridge stationary, pull the force gage upat a rate taking 3 to4stomove 1 ft (10 to 13 s to move 1 m)and o
11、bserve the point on the gage where a consistent orrepeated maximum reading results. Be sure that the ribbongoing into the opposite leg of the cartridge is slack. Refer toNote 1.NOTE 1Exit force measurements may vary widely as ribbon isexhausted or restuffed depending on the type of cartridge. For me
12、aningfulresults, record force measurements according to the described procedureafter advancing the ribbon 25, 50, 75, and 90 % of its total length. (Thiscannot be done for those ribbons in a continuous loop form.) Consistencyof force measurement throughout is indicative of a well functioningmechanis
13、m.8.7 Record the result from the force gage and include allpertinent data regarding the sample tested, that is, source, typeof ribbon, and the like.1This test method is under the jurisdiction of ASTM Committee F05 on BusinessCopy Products and is the direct responsibility of Subcommittee F05.02 on In
14、kedRibbons and Carbon Paper.Current edition approved July 10, 1999. Published September 1999. Originallypublished as F 1225 89. Last previous edition F 1225 94.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of
15、 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 19428-2959, United States.8.8 Disconnect the clip from the ribbon. Apply alcohol to arag and clean all stray mar
16、ks from the gage.9. Film Cartridge Procedure9.1 Follow the same procedure as outlined in 8.1 through8.3.9.2 Place the cartridge on a flat surface (such as a table topedge) in a horizontal manner and hold with one hand.9.2.1 For film type ribbons, it may be necessary to build aspecial fixture which s
17、imulates actual machine conditions inwhich the ribbon is to be used. This is because certain cartridgecomponents may be installed to prevent ribbon unwindingduring transport (shipment) and subsequently may becomedisengaged when installed into a typewriter while other ten-sioning devices are activate
18、d.9.2.2 Because of design characteristics for movement of thefilm ribbon in a cartridge, all tests should be conducted with thecartridge in a flat (horizontal) position.9.3 Hold the horizontal force gage parallel to the table andin line with the cartridge lying flat. If needed, the cartridge canbe h
19、eld by a vice or other holding device provided it does notcompress the cartridge so as to alter the test result. See Fig. 2and Fig. 3.9.4 Holding the cartridge stationary, pull the force gage at arate of 3 to4stomove 1 ft (10 to 13 s to move 1 m) andobserve the point on the gage where a consistent o
20、r repeatedmaximum reading results. Be sure that the ribbon going intothe opposite leg of the cartridge is slack. Refer to Note 1.9.5 Continue as outlined in 8.7 and 8.8 regarding data fromthe force gage and cleaning.10. Precision and Bias10.1 Precision is a function of the sensitivity of the forcega
21、ge and the technique of the operator.10.2 Because the test is a destructive type, repeatability onthe same sample after the sample has been totally exhausted isnot possible. Measurements within or between laboratoriesmay not be reproducible because of differences in lot samples,operators, test equip
22、ment, and winding tension within the samesample.11. Keywords11.1 exit force; inked ribbons; typewriter ribbonsFIG. 1 Force Gage Position, Fabric Cartridge ProcedureFIG. 2 Force Gage Position, Top View, Film Cartridge ProcedureFIG. 3 Force Gage Position, Side View, Film Cartridge ProcedureF 1225 99 (
23、2003)2ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such right
24、s, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional s
25、tandardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM C
26、ommittee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).F 1225 99 (2003)3
