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IPC 7
  B41J 9/00 - B41J 13/32  
B41J01500-B41J01998
  B41J 21/00 - B41J 31/16  

SECTION B – PERFORMING OPERATIONS; TRANSPORTING


B 41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS (reproduction or duplication of pictures or patterns by scanning and converting into electrical signals H04N) [4]


B 41 JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS (composing B41B; printing on special surfaces B41F; laundry marking B41K; erasers, rubbers or erasing devices B43L 19/00; fluid media for correction of typographical errors by coating C09D 10/00; recording the results of measuring G01; recognition or presentation of data, marking record carriers in digital fashion, e.g. by punching, G06K; franking or ticket-printing and issuing apparatus G07B; electric keyboard switches, in general H01H 13/70, H03K 17/94; coding in connection with keyboards or like devices, in general H03M 11/00; receivers or transmitters for transmission of digital information H04L; transmission or reproduction of documents, or the like, e.g. facsimile transmission, H04N 1/00; printing mechanisms specially adapted for apparatus, e.g. cash registers, weighing machines, producing records of their own performance, see the relevant subclasses)


15/

00Devices or arrangements specially adapted for supporting or handling copy material in continuous form, e.g. webs

15/

02.Web rolls or spindles; Attaching webs to cores or spindles

15/

04.Supporting, feeding, or guiding devices; Mountings for web rolls or spindles

15/

06..characterised by being applied to printers having stationary carriages

15/

08..characterised by being applied to printers having transversely-moving carriages

15/

10...and mounted on the carriage

15/

12...and coupled to the carriage

15/

14...and detached from the carriage

15/

16.Means for tensioning or winding the web

15/

18.Multiple-web feeding apparatus

15/

20..for webs superimposed during printing (machines for separating superposed webs B65H 41/00)

15/

22..for feeding webs in separate paths during printing

15/

24..with means for registering the webs with each other


17/

00Mechanisms for manipulating page-width impression-transfer material, e.g. carbon paper (in manifolding devices B41L; sheet material for duplicating or marking B41M 5/00)

17/

02.Feeding mechanisms

17/

04..Feed dependent on the record-paper feed, e.g. both moved at the same time

17/

06..."Creep" feed, i.e. impression-transfer material fed slower than the record paper

17/

07...electromagnetically controlled

17/

08..Feed independent of the record-paper feed

17/

10...electromagnetically controlled

17/

12..Special adaptations for ensuring maximum life

17/

14..Automatic arrangements for reversing the feed direction

17/

16.Holders in the machine for sheets of impression-transfer material

17/

18..pivotable to and from the platen

17/

20..slidable to and from the platen

17/

22.Supply arrangements for webs or impression-transfer material

17/

24..Webs supplied from reels or spools attached to the machine (reels per se B65H 75/02)

17/

26..Webs supplied from trays or like supports attached to the machines

17/

28.Arrangements of guides for the impression-transfer material

17/

30.Constructions of guides for the impression-transfer material

17/

32.Detachable carriers or holders for impression-transfer material mechanism

17/

34.Backings for impression-transfer material, e.g. sheets for reducing friction, shields for preventing imprint

17/

36.Alarms, indicators, or feed-disabling devices responsive to material breakage or exhaustion

17/

38.for dealing with the impression-transfer material after use

17/

40..for retracting sheets for re-use

17/

42..for webs


19/

00Character- or line-spacing mechanisms (key actions B41J 25/02)

19/

02.with retarding devices, e.g. brakes

19/

04.Sound-deadening or shock-absorbing devices or measures therein (B41J 19/38 takes precedence)

19/

06..Resilient mounting of mechanism

19/

08..Buffers, springs, or like carriage stops

19/

10..Dash-pots

19/

12..Gearing made of special material or specially constructed to reduce sound or shock

19/

14.with means for effecting line or character spacing in either direction

19/

16.Special spacing mechanisms for circular, spiral, or diagonal-printing apparatus

19/

18.Character-spacing or back-spacing mechanisms; Carriage-return or release devices therefor

19/

20..Positive-feed character-spacing mechanisms (controlled by escapements B41J 19/52)

19/

22...acting by friction or gripping effect

19/

24...Pawl and ratchet

19/

26....moving a paper or like carriage

19/

28....moving a paper or like web or strip, e.g. over a stationary support

19/

30...Electromagnetically-operated mechanisms

19/

32...Differential or variable-spacing arrangements

19/

34..Escapement-feed character-spacing mechanisms

19/

36...Driving mechanisms, e.g. springs stressed during carriage return

19/

38....adapted for silent return

19/

40...Escapements having a single pawl or like detent

19/

42...Escapements having two pawls or like detents

19/

44....coacting with two toothed members, e.g. racks or wheels

19/

46....and mounted on a single rocker

19/

48....and mounted on a single slider

19/

50...Electromagnetically-controlled escapements

19/

52...Escapements controlling positive-feed mechanism

19/

54...Construction of universal bars

19/

56...Escapements controlling web or strip feed

19/

58...Differential or variable-spacing arrangements

19/

60..Auxiliary feed or adjustment devices

19/

62...for back-spacing

19/

64...for justifying

19/

66..Carriage-release mechanisms

19/

68..Carriage-return mechanisms, e.g. manually actuated

19/

70...power driven

19/

72....with power stored during character spacing

19/

74..with special means to maintain character-spacing or back-spacing elements in engagement during case-shift or like movement

19/

76.Line-spacing mechanisms (special line-feeds, e.g. long feeds, B41J 11/36)

19/

78..Positive-feed mechanisms

19/

80...Pawl-and-ratchet mechanisms

19/

82....moving a paper or like carriage

19/

84.....in the form of a roller rotated for line spacing

19/

86......the pawl being normally in engagement with the ratchet

19/

88....moving a type carriage

19/

90....moving a paper or like web or strip, e.g. over a stationary support, automatically in response to movements other than carriage return

19/

92...Electromagnetically-operated mechanisms

19/

94...automatically operated in response to carriage return

19/

96...Variable-spacing arrangements

19/

98..Escapement-feed mechanisms

  B41J 9/00 - B41J 13/32    B41J 21/00 - B41J 31/16  
 

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