B
SECTION B — PERFORMING OPERATIONS; TRANSPORTING
  
PRINTING
 B41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS (reproduction or duplication of pictures or patterns by scanning and converting into electrical signals H04N)  [4]
 B41J
TYPEWRITERS; 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)
 B41J

Note(s)

  1. This subclass covers:
    • manually controlled power-operated apparatus or apparatus of this type with additional control by input of recorded information, e.g. on punched cards or tapes;
    • the "print-out" features of apparatus controlled by record carriers or electric signals in so far as these are of general interest, e.g. impression, inking, line-spacing mechanisms, printing heads.  [5]
  2. This subclass does not cover:
    • electrical features of apparatus controlled by record carriers or electric signals and of interest apart from the "print-out" features of said apparatus;
    • apparatus controlled by record carriers or electric signals, as a whole.  [5]
  3. In this subclass, the following term is used with the meaning indicated:
    • "paper" covers also similar flexible copy material;  [3]
    • "printing material" covers both paper and temporary record carriers from which records are transferred to a paper, but does not cover printing masters, e.g. formes.  [5]
 B41J
Subclass index
KINDS OF APPARATUS
characterised by the mounting, arrangement, or disposition of the types or dies 1/00
characterised by the printing or marking process for which they are designed 2/00
characterised by the purpose 3/00
COMMON DETAILS OR ACCESSORIES
Character selection 5/00, 7/00
Hammer impression 9/00
Supporting or handling copy or duplicating material 11/00 - 15/00
Transfer material
of page-width 17/00
in ribbon form; ink ribbon cartridges 31/00, 33/00, 35/00; 32/00
Inking 27/00
Spacing 19/00
Drives 23/00
Particular operations 21/00
Others 25/00, 29/00, 35/00
 B41J 1/00 - 
B41J 3/00
Kinds of typewriters or of selective printing mechanisms
 B41J 1/00
Typewriters or selective printing mechanisms characterised by the mounting, arrangement, or disposition of the types or dies (non-selective embossing B44B 5/00)
 B41J 1/02
·  with separate or detached types or dies
 B41J 1/04
·  with types or dies carried upon levers or radial arms, e.g. manually operated (B41J 1/16 takes precedence)
 B41J 1/06
·  ·  on power-operated levers or arms
 B41J 1/08
·  with types or dies carried on sliding bars or rods
 B41J 1/10
·  ·  on end surfaces thereof
 B41J 1/12
·  ·  on side surfaces thereof, e.g. fixed thereto
 B41J 1/14
·  ·  ·  the types or dies being movable relative to the bars or rods (mounted on flexible bars or rods B41J 1/16)
 B41J 1/16
·  with types or dies arranged in stationary or sliding cases or frames or upon flexible strips, plates, bars, or rods
 B41J 1/18
·  with types or dies strung on wires or rods
 B41J 1/20
·  with types or dies mounted on endless bands or the like
 B41J 1/22
·  with types or dies mounted on carriers rotatable for selection
 B41J 1/24
·  ·  the plane of the type or die face being perpendicular to the axis of rotation (B41J 1/60 takes precedence)
 B41J 1/26
·  ·  ·  Carriers moving for impression (B41J 1/27 takes precedence)  [3]
 B41J 1/27
·  ·  ·  Carriers moving during impression  [3]
 B41J 1/28
·  ·  ·  Carriers stationary for impression, e.g. with the types or dies not moving relative to the carriers
 B41J 1/30
·  ·  ·  ·  with the types or dies moving relative to the carriers or mounted on flexible carriers
 B41J 1/32
·  ·  the plane of the type or die face being parallel to the axis of rotation, e.g. with type on the periphery of cylindrical carriers (B41J 1/60 takes precedence)
 B41J 1/34
·  ·  ·  Carriers rotating during impression
 B41J 1/36
·  ·  ·  Carriers sliding for impression, e.g. manually operated
 B41J 1/38
·  ·  ·  ·  power operated
 B41J 1/40
·  ·  ·  Carriers swinging for impression
 B41J 1/42
·  ·  ·  ·  about an axis parallel to the axis of rotation of the carrier
 B41J 1/44
·  ·  ·  Carriers stationary for impression
 B41J 1/46
·  ·  ·  ·  Types or dies fixed on wheel, drum, cylinder, or like carriers
 B41J 1/48
·  ·  ·  ·  ·  with a plurality of carriers, one for each character space
 B41J 1/50
·  ·  ·  ·  ·  with one or more carriers travelling across copy material in letter-space direction
 B41J 1/52
·  ·  ·  ·  ·  with copy material moving in the letter-space direction, and carrier mounting being fixed relative to the machine
 B41J 1/54
·  ·  ·  ·  Types or dies movable on wheel, drum, cylinder, or like carriers
 B41J 1/56
·  ·  ·  ·  Types or dies on shuttles or like loose carriers
 B41J 1/58
·  ·  ·  ·  Types or dies upon arcuate bars
 B41J 1/60
·  with types or dies on spherical, truncated-spherical, or like surfaces
 B41J 2/00
Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed (mounting, arrangement, or disposition of types or dies B41J 1/00; marking methods B41M 5/00; structure or manufacture of heads, e.g. inductive, for recording by magnetisation or demagnetisation of a record carrier G11B 5/127; heads for reproducing capacitive information G11B 9/07)  [5]
 B41J 2/00

Note(s)

  1. This group covers devices reproducing only a discrete number of tones, whereas group H04N 1/00 covers devices used for the reproduction of documents or the like, which devices are capable of reproducing continuous tone value scales.  [5]
  2. In this group, the following expressions are used with the meanings indicated:
    • "ink jet" involves the projection of ink on to the printing material, e.g. paper, through a nozzle as a stream of droplets or particles of colouring matter;
    • "continuous ink jet" means a jet of ink transformed into a continuous stream of droplets or particles of colouring matter after having left the nozzle;
    • "ink spray" means a spray of ink transported by a stream of charged particles or air on to the printing material.  [5]
 B41J 2/005
·  characterised by bringing liquid or particles selectively into contact with a printing material (printing by selective application of impact or pressure on a printing or impression-transfer material B41J 2/22)  [5]
 B41J 2/01
·  ·  Ink jet  [5]
 B41J 2/015
·  ·  ·  characterised by the jet generation process (B41J 2/215 takes precedence)  [5]
 B41J 2/02
·  ·  ·  ·  generating a continuous ink jet  [5]
 B41J 2/025
·  ·  ·  ·  ·  by vibration  [5]
 B41J 2/03
·  ·  ·  ·  ·  by pressure  [5]
 B41J 2/035
·  ·  ·  ·  ·  by electric or magnetic field  [5]
 B41J 2/04
·  ·  ·  ·  generating single droplets or particles on demand  [5]
 B41J 2/045
·  ·  ·  ·  ·  by pressure, e.g. electromechanical transducers  [5]
 B41J 2/05
·  ·  ·  ·  ·  ·  produced by the application of heat  [5]
 B41J 2/055
·  ·  ·  ·  ·  ·  Devices for absorbing or preventing back-pressure  [5]
 B41J 2/06
·  ·  ·  ·  ·  by electric or magnetic field  [5]
 B41J 2/065
·  ·  ·  ·  ·  ·  involving the preliminary making of ink protuberances  [5]
 B41J 2/07
·  ·  ·  characterised by jet control (B41J 2/205 takes precedence)  [5]
 B41J 2/075
·  ·  ·  ·  for many-valued deflection  [5]
 B41J 2/08
·  ·  ·  ·  ·  charge-control type  [5]
 B41J 2/085
·  ·  ·  ·  ·  ·  Charge means, e.g. electrodes  [5]
 B41J 2/09
·  ·  ·  ·  ·  ·  Deflection means  [5]
 B41J 2/095
·  ·  ·  ·  ·  electric field-control type  [5]
 B41J 2/10
·  ·  ·  ·  ·  magnetic field-control type  [5]
 B41J 2/105
·  ·  ·  ·  for binary-valued deflection  [5]
 B41J 2/11
·  ·  ·  ·  for ink spray  [5]
 B41J 2/115
·  ·  ·  ·  synchronising the droplet separation and charging time  [5]
 B41J 2/12
·  ·  ·  ·  testing or correcting charge or deflection  [5]
 B41J 2/125
·  ·  ·  ·  Sensors, e.g. deflection sensors  [5]
 B41J 2/13
·  ·  ·  ·  for inclination of printed pattern  [5]
 B41J 2/135
·  ·  ·  Nozzles  [5]
 B41J 2/14
·  ·  ·  ·  Structure thereof  [5]
 B41J 2/145
·  ·  ·  ·  Arrangement thereof  [5]
 B41J 2/15
·  ·  ·  ·  ·  for serial printing  [5]
 B41J 2/155
·  ·  ·  ·  ·  for line printing  [5]
 B41J 2/16
·  ·  ·  ·  Production of nozzles  [5]
 B41J 2/165
·  ·  ·  ·  Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles  [5]
 B41J 2/17
·  ·  ·  characterised by ink handling  [5]
 B41J 2/175
·  ·  ·  ·  Ink supply systems  [5]
 B41J 2/18
·  ·  ·  ·  Ink recirculation systems  [5]
 B41J 2/185
·  ·  ·  ·  ·  Ink-collectors; Ink-catchers  [5]
 B41J 2/19
·  ·  ·  ·  for removing air bubbles  [5]
 B41J 2/195
·  ·  ·  ·  for monitoring ink quality  [5]
 B41J 2/20
·  ·  ·  ·  for preventing or detecting contamination of compounds  [5]
 B41J 2/205
·  ·  ·  for printing a discrete number of tones (B41J 2/21 takes precedence)  [5]
 B41J 2/21
·  ·  ·  for multi-colour printing  [5]
 B41J 2/215
·  ·  by passing a medium, e.g. consisting of an air or particle stream, through an ink mist  [5]
 B41J 2/22
·  characterised by selective application of impact or pressure on a printing material or impression- transfer material  [5]
 B41J 2/225
·  ·  ballistic, e.g. using solid balls or pellets  [5]
 B41J 2/23
·  ·  using print wires  [5]
 B41J 2/235
·  ·  ·  Print head assemblies  [5]
 B41J 2/24
·  ·  ·  ·  serial printer type (B41J 2/25, B41J 2/265 take precedence)  [5]
 B41J 2/245
·  ·  ·  ·  line printer type (B41J 2/25, B41J 2/265 take precedence)  [5]
 B41J 2/25
·  ·  ·  ·  Print wires  [5]
 B41J 2/255
·  ·  ·  ·  ·  Arrangement of the print ends of the wires  [5]
 B41J 2/26
·  ·  ·  ·  ·  Connection of print wire and actuator  [5]
 B41J 2/265
·  ·  ·  ·  Guides for print wires  [5]
 B41J 2/27
·  ·  ·  Actuators for print wires  [5]
 B41J 2/275
·  ·  ·  ·  of clapper type (B41J 2/28 takes precedence)  [5]
 B41J 2/28
·  ·  ·  ·  of spring charge type, i.e. with mechanical power under electro-magnetic control  [5]
 B41J 2/285
·  ·  ·  ·  of plunger type  [5]
 B41J 2/29
·  ·  ·  ·  of moving-coil type  [5]
 B41J 2/295
·  ·  ·  ·  using piezo-electric elements  [5]
 B41J 2/30
·  ·  ·  Control circuits for actuators  [5]
 B41J 2/305
·  ·  ·  Ink supply apparatus (ink ribbons, ink-ribbon mechanisms B41J 31/00-B41J 35/00)  [5]
 B41J 2/31
·  ·  using a print element with projections on its surface impacted or impressed by hammers  [5]
 B41J 2/315
·  characterised by selective application of heat to a heat sensitive printing or impression-transfer material (B41J 2/385, B41J 2/435 take precedence)  [5]
 B41J 2/32
·  ·  using thermal heads  [5]
 B41J 2/325
·  ·  ·  by selective transfer of ink from ink carrier, e.g. from ink ribbon or sheet  [5]
 B41J 2/33
·  ·  ·  ·  from ink roller  [5]
 B41J 2/335
·  ·  ·  Structure of thermal heads  [5]
 B41J 2/34
·  ·  ·  ·  comprising semiconductors  [5]
 B41J 2/345
·  ·  ·  characterised by the arrangement of resistors or conductors  [5]
 B41J 2/35
·  ·  ·  providing current or voltage to the thermal head  [5]
 B41J 2/355
·  ·  ·  ·  Control circuits for heating-element selection  [5]
 B41J 2/36
·  ·  ·  ·  ·  Print density control  [5]
 B41J 2/365
·  ·  ·  ·  ·  ·  by compensation for variation in temperature  [5]
 B41J 2/37
·  ·  ·  ·  ·  ·  by compensation for variation in current  [5]
 B41J 2/375
·  ·  ·  Protection arrangements against overheating  [5]
 B41J 2/38
·  ·  Preheating, i.e. heating to a temperature insufficient to cause printing  [5]
 B41J 2/385
·  characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material (B41J 2/005 takes precedence; electrography, magnetography G03G)  [5]
 B41J 2/39
·  ·  using multi-stylus heads  [5]
 B41J 2/395
·  ·  ·  Structure of multi-stylus heads  [5]
 B41J 2/40
·  ·  ·  providing current or voltage to the multi-stylus head  [5]
 B41J 2/405
·  ·  ·  ·  Selection of the stylus or auxiliary electrode to be supplied (electronic switching circuits in general H03K 17/00)  [5]
 B41J 2/41
·  ·  for electrostatic printing (B41J 2/39 takes precedence)  [5]
 B41J 2/415
·  ·  ·  by passing charged particles through a hole or a slit  [5]
 B41J 2/42
·  ·  for heating selectively  [5]
 B41J 2/425
·  ·  for removing surface layer selectively from electro-sensitive material, e.g. matel coated paper  [5]
 B41J 2/43
·  ·  for magnetic printing  [5]
 B41J 2/435
·  characterised by selective application of radiation to a printing material or impression-transfer material (optical elements, systems, or apparatus G02B; modulation or deflection of light G02F; electrophotography G03G)  [5]
 B41J 2/44
·  ·  using single radiation source, e.g. lighting beams or shutter arrangements (B41J 2/475 takes precedence)  [5]
 B41J 2/445
·  ·  ·  using liquid crystals  [5]
 B41J 2/447
·  ·  using arrays of radiation sources (B41J 2/475 takes precedence)  [6]
 B41J 2/45
·  ·  ·  using light-emitting diode arrays  [5]
 B41J 2/455
·  ·  ·  using laser arrays  [5]
 B41J 2/46
·  ·  ·  characterised by using glass fibres  [5]
 B41J 2/465
·  ·  using masks, e.g. light-switching masks (photographic composing B41B)  [5]
 B41J 2/47
·  ·  using the combination of scanning and modulation of light  [5]
 B41J 2/475
·  ·  for heating selectively  [5]
 B41J 2/48
·  ·  ·  melting ink on a film or melting ink granules  [5]
 B41J 2/485
·  characterised by the process of building-up characters applicable to two or more kinds of printing or marking processes  [5]
 B41J 2/49
·  ·  by writing  [5]
 B41J 2/495
·  ·  by selective printing from a rotating helical member  [5]
 B41J 2/50
·  ·  by the selective combination of two or more non-identical printing elements  [5]
 B41J 2/505
·  ·  from an assembly of identical printing elements  [5]
 B41J 2/51
·  ·  ·  serial printer type  [5]
 B41J 2/515
·  ·  ·  line printer type  [5]
 B41J 2/52
·  Arrangement for printing a discrete number of tones, not covered by group B41J 2/205, e.g. applicable to two or more kinds of printing or marking process (B41J 2/525 takes precedence; for photomechanical production G03F 5/00)  [5]
 B41J 2/525
·  Arrangement for multi-colour printing, not covered by group B41J 2/21, e.g. applicable to two or more kinds of printing or marking process (for photomechanical production G03F 3/00)  [5]
 B41J 3/00
Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed (cryptographic typewriters G09C 3/00)  [5]
 B41J 3/01
·  for special character, e.g. for Chinese characters or bar codes  [5]
 B41J 3/24
·  for perforating or stencil cutting using special types or dies
 B41J 3/26
·  for stenographic writing
 B41J 3/28
·  for printing downwardly on flat surfaces, e.g. of books, drawings, boxes
 B41J 3/30
·  for printing with large type, e.g. on bulletins, tickets
 B41J 3/32
·  for printing in Braille or with keyboards specially adapted for use by blind or disabled persons
 B41J 3/34
·  for printing musical scores
 B41J 3/36
·  for portability
 B41J 3/37
·  ·  Foldable typewriters  [5]
 B41J 3/38
·  for embossing, e.g. for making matrices for stereotypes
 B41J 3/39
·  ·  hand-held (manually-controlled or manually-operable label dispensers having printing equipment B65C 11/02)  [5]
 B41J 3/407
·  for marking on special material (printing on special surfaces B41F 17/00)  [5]
 B41J 3/413
·  ·  for metal  [5]
 B41J 3/42
·  Two or more complete typewriters coupled for simultaneous operation
 B41J 3/44
·  Typewriters or selective printing mechanisms having dual functions or combined with, or coupled to, apparatus performing other functions (printing mechanisms coupled to typographical composing machines B41B 27/41)
 B41J 3/46
·  ·  Printing mechanisms combined with apparatus providing a visual indication
 B41J 3/50
·  ·  Mechanisms producing characters by printing and also producing a record by other means (punching mechanisms G06K)  [5]
 B41J 3/51
·  ·  ·  the printed and recorded information being identical; using type elements with code-generating means (G06K 1/12 takes precedence)  [5]
 B41J 3/54
·  with two or more sets of type or printing elements (B41J 3/60 takes precedence)  [5]
 B41J 3/60
·  for printing on both faces of the printing material  [5]
 B41J 3/62
·  for printing on two or more separate sheets or strips of printing material (B41J 3/54 takes precedence)  [5]
 B41J 5/00 - 
B41J 29/00
Common details or accessories
 B41J 5/00
Devices or arrangements for controlling character selection (methods or arrangements for sensing record carriers G06K 7/00)
 B41J 5/02
·  Character or syllable selected by setting an index
 B41J 5/04
·  ·  Single-character selection
 B41J 5/06
·  ·  Multiple-character selection
 B41J 5/08
·  Character or syllable selected by means of keys or keyboards of the typewriter type
 B41J 5/10
·  ·  Arrangements of keyboards
 B41J 5/12
·  ·  Construction of key buttons
 B41J 5/14
·  ·  Construction of key levers
 B41J 5/16
·  ·  Mounting or connecting key buttons on or to key levers
 B41J 5/18
·  ·  Locks
 B41J 5/20
·  ·  ·  for subsidiary keys, e.g. for shift keys
 B41J 5/22
·  ·  ·  Interlocks between keys, e.g. without detent arrangements
 B41J 5/24
·  ·  ·  ·  with detent arrangements
 B41J 5/26
·  ·  Regulating touch, key dip or stroke, or the like
 B41J 5/28
·  ·  Multiple-action keys, e.g. keys depressed by two or more amounts or movable in two or more directions to effect different functions or selections
 B41J 5/30
·  Character or syllable selection controlled by recorded information
 B41J 5/31
·  ·  characterised by form of recorded information
 B41J 5/32
·  ·  ·  by printed, embossed, or photographic records, e.g. cards, sheets
 B41J 5/34
·  ·  ·  ·  by strips or tapes
 B41J 5/36
·  ·  ·  by punched records, e.g. cards, sheets
 B41J 5/38
·  ·  ·  ·  by strips or tapes
 B41J 5/40
·  ·  ·  by magnetic or electrostatic records, e.g. cards, sheets
 B41J 5/42
·  ·  ·  ·  by strips or tapes
 B41J 5/44
·  ·  characterised by the kind of storage of recorded information
 B41J 5/46
·  ·  ·  the storage being on internal storages
 B41J 5/48
·  ·  ·  the storage being on external storages
 B41J 5/50
·  ·  ·  ·  on a single storage
 B41J 5/51
·  ·  ·  ·  on more than one separate storage, e.g. on additional correction strips or tapes  [3]
 B41J 5/52
·  ·  characterised by the provision of additional devices for producing a punched or like record, e.g. simultaneously
 B41J 7/00
Type-selecting or type-actuating mechanisms (index setting B41J 5/02)
 B41J 7/02
·  Type-lever actuating mechanisms
 B41J 7/04
·  ·  Levers mounted on fixed pivots
 B41J 7/06
·  ·  ·  and connected to transmission members, e.g. toothed gearing
 B41J 7/08
·  ·  ·  ·  with pin-and-slot or like loose connections; Cam-slot members
 B41J 7/10
·  ·  ·  ·  Chain, belt, flexible-cable, or like members
 B41J 7/12
·  ·  ·  U-shaped type-lever on two pivots
 B41J 7/14
·  ·  ·  Single key-and-type lever
 B41J 7/16
·  ·  ·  Type-head pivoted to, or rotating on, lever
 B41J 7/18
·  ·  Levers having moving or variable fulcra to alter the mechanical advantage during the stroke
 B41J 7/20
·  ·  Levers having moving pivots fixed relative to the lever; Type-bars each pivoted on two links
 B41J 7/22
·  ·  Type-baskets; Bearings or hangers for type-levers
 B41J 7/24
·  ·  Construction of type-levers (U-shaped levers B41J 7/12)
 B41J 7/26
·  ·  Special means, e.g. repulsers, for ensuring return of type-levers
 B41J 7/28
·  ·  Key-lever and type-member returned independently to rest position
 B41J 7/30
·  ·  Preventing rebound or clash of levers or type-members
 B41J 7/32
·  Type-face selected by operation of sliding members
 B41J 7/34
·  Type-face selected by operation of rotary members
 B41J 7/36
·  Selecting arrangements applied to type-carriers rotating during impression
 B41J 7/38
·  ·  Type movable on carrier for selection
 B41J 7/40
·  ·  Type movable on carrier for impression
 B41J 7/42
·  ·  Timed impression, e.g. without impact
 B41J 7/44
·  ·  ·  with impact
 B41J 7/46
·  ·  Rolling contact during impression
 B41J 7/48
·  Type-carrier arrested in selected position by electromagnetic means
 B41J 7/50
·  Type-face selected by combinations of two movements of type-carrier
 B41J 7/52
·  ·  by combined rotary and sliding movement
 B41J 7/54
·  Selecting arrangements including combination, permutation, summation, or aggregation means
 B41J 7/56
·  ·  Summation devices for mechanical movements
 B41J 7/58
·  ·  ·  Wedges
 B41J 7/60
·  ·  ·  Levers
 B41J 7/62
·  ·  ·  Gearing
 B41J 7/64
·  ·  ·  Pulley-and-strand mechanism
 B41J 7/66
·  ·  Movable members, e.g. pins, displaceable according to a code
 B41J 7/68
·  ·  with means for selectively closing an electric circuit for type presentation
 B41J 7/90
·  Syllable, line, or like type selection
 B41J 7/92
·  Impact adjustment; Means to give uniformity of impression (B41J 9/46, B41J 9/48 take precedence)  [5]
 B41J 7/94
·  ·  Character-by-character adjustment
 B41J 7/96
·  Means for checking correctness of setting
 B41J 9/00
Hammer-impression mechanisms
 B41J 9/02
·  Hammers; Arrangements thereof
 B41J 9/04
·  ·  of single hammers, e.g. travelling along printing line
 B41J 9/06
·  ·  ·  of stationary hammers, e.g. engaging a single type-carrier
 B41J 9/08
·  ·  ·  ·  engaging more than one type-carrier
 B41J 9/10
·  ·  of more than one hammer, e.g. one for each character position
 B41J 9/12
·  ·  ·  each operating in more than one character position
 B41J 9/127
·  ·  Mounting of hammers  [3]
 B41J 9/133
·  ·  Construction of hammer body or tip  [3]
 B41J 9/14
·  Means for selecting or suppressing individual hammers
 B41J 9/16
·  Means for cocking or resetting hammers
 B41J 9/18
·  ·  Cams
 B41J 9/20
·  ·  Springs
 B41J 9/22
·  ·  Fluid-pressure means
 B41J 9/24
·  ·  Electromagnetic means
 B41J 9/26
·  Means for operating hammers to effect impression
 B41J 9/28
·  ·  Cams
 B41J 9/30
·  ·  Springs
 B41J 9/32
·  ·  arranged to be clutched to snatch roll
 B41J 9/34
·  ·  Fluid-pressure means
 B41J 9/36
·  ·  in which mechanical power is applied under electromagnetic control
 B41J 9/38
·  ·  Electromagnetic means
 B41J 9/40
·  ·  including an electro-adhesive clutch
 B41J 9/42
·  with anti-rebound arrangements
 B41J 9/44
·  Control for hammer-impression mechanisms  [5]
 B41J 9/46
·  ·  for deciding or adjusting hammer-firing time  [5]
 B41J 9/48
·  ·  for deciding or adjusting hammer-drive energy  [5]
 B41J 9/50
·  ·  for compensating for the variations of printer drive conditions, e.g. for compensating for the variation of temperature or current supply  [5]
 B41J 9/52
·  ·  for checking the operation of print hammers  [5]
 B41J 9/54
·  ·  ·  for checking the breakage of print hammers  [5]
 B41J 11/00
Devices or arrangements for supporting or handling copy material in sheet or web form (specially adapted for supporting or handling copy material in short lengths B41J 13/00, in continuous form B41J 15/00; holders for text to be copied B41J 29/00)
 B41J 11/02
·  Platens
 B41J 11/04
·  ·  Roller platens
 B41J 11/053
·  ·  ·  with sound-deadening devices (structure of surface B41J 11/057)  [3]
 B41J 11/057
·  ·  ·  Structure of the surface  [3]
 B41J 11/06
·  ·  Flat page-size platens
 B41J 11/08
·  ·  Bar or like line-size platens
 B41J 11/10
·  ·  Anvil or like character-size platens
 B41J 11/13
·  ·  Backings or blankets (for roller platens B41J 11/057)  [3]
 B41J 11/14
·  ·  Platen-shift mechanisms; Driving gear therefor
 B41J 11/16
·  ·  with balancing means
 B41J 11/18
·  Platen-impression arrangements
 B41J 11/20
·  Platen adjustments for varying the strength of impression, for a varying number of papers, for wear or for alignment
 B41J 11/22
·  Paper-carriage guides or races
 B41J 11/24
·  Detents, brakes, or couplings for feed rollers or platens
 B41J 11/26
·  Pin feeds
 B41J 11/27
·  ·  on or within the platen-rollers
 B41J 11/28
·  ·  Pin wheels
 B41J 11/30
·  ·  Pin traction elements other than wheels, e.g. pins on endless bands
 B41J 11/32
·  ·  Adjustment of pin wheels or traction elements, e.g. laterally
 B41J 11/34
·  ·  Guides coacting with pin feeds
 B41J 11/36
·  Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
 B41J 11/38
·  ·  Manually-operated feeding devices
 B41J 11/40
·  ·  specially adapted for printing musical scores
 B41J 11/42
·  ·  Controlling
 B41J 11/44
·  ·  ·  by devices, e.g. programme tape or contact wheel, moved in correspondence with movement of paper-feeding devices, e.g. platen rotation
 B41J 11/46
·  ·  ·  by marks or formations on the paper being fed
 B41J 11/48
·  Apparatus for condensed record, tally strip, or like work using two or more papers, or sets of papers
 B41J 11/50
·  ·  in which two or more papers or sets are separately fed in the same direction towards the printing position
 B41J 11/51
·  ·  ·  with different feed rates  [3]
 B41J 11/52
·  ·  in which one paper or set is moved transversely relative to another
 B41J 11/53
·  ·  ·  Devices for holding in place one paper or set during replacement of one or more of the auxiliary papers or sets
 B41J 11/54
·  ·  in which one paper or set is fed towards printing position from the front of the apparatus
 B41J 11/55
·  ·  ·  with means for adjusting a paper or set  [3]
 B41J 11/56
·  specially constructed to facilitate storage or transport of typewriter
 B41J 11/58
·  Supply holders for sheets or fan-folded webs, e.g. shelves, tables, scrolls, pile holders
 B41J 11/60
·  Erasing or correcting tables
 B41J 11/62
·  Shields or masks
 B41J 11/64
·  Applications of scales or indicators
 B41J 11/66
·  Applications of cutting devices
 B41J 11/68
·  ·  cutting parallel to the direction of paper feed
 B41J 11/70
·  ·  cutting perpendicular to the direction of paper feed
 B41J 13/00
Devices or arrangements specially adapted for supporting or handling copy material in short lengths, e.g. sheets
 B41J 13/02
·  Rollers (roller platens B41J 11/04)
 B41J 13/03
·  ·  driven, e.g. feed rollers separate from platen
 B41J 13/036
·  ·  co-operating with a roller platen  [3]
 B41J 13/042
·  ·  ·  Front and rear rollers or sets of front or rear rollers each mounted on a separate carrier  [3]
 B41J 13/048
·  ·  ·  Front and rear rollers both mounted on a common carrier  [3]
 B41J 13/054
·  ·  ·  ·  on the paper apron concentric with the roller platen  [3]
 B41J 13/076
·  ·  Construction of rollers; Bearings therefor
 B41J 13/08
·  Bands or like feeding devices
 B41J 13/10
·  Sheet holders, retainers, or stationary guides
 B41J 13/12
·  ·  specially adapted for cards, envelopes, or the like
 B41J 13/14
·  ·  Aprons or guides
 B41J 13/16
·  ·  ·  movable for insertion or release of sheets
 B41J 13/18
·  ·  ·  concentric with roller platen
 B41J 13/20
·  ·  Bails
 B41J 13/22
·  ·  Clamps or grippers
 B41J 13/24
·  ·  Strips for supporting or holding papers
 B41J 13/26
·  Registering devices
 B41J 13/28
·  ·  Front lays, stops, or gauges
 B41J 13/30
·  ·  Side lays or gauges
 B41J 13/32
·  ·  Means for positioning sheets in two directions under one control, e.g. for format control or orthogonal sheet positioning
 B41J 15/00
Devices or arrangements specially adapted for supporting or handling copy material in continuous form, e.g. webs
 B41J 15/02
·  Web rolls or spindles; Attaching webs to cores or spindles
 B41J 15/04
·  Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
 B41J 15/06
·  ·  characterised by being applied to printers having stationary carriages
 B41J 15/08
·  ·  characterised by being applied to printers having transversely-moving carriages
 B41J 15/10
·  ·  ·  and mounted on the carriage
 B41J 15/12
·  ·  ·  and coupled to the carriage
 B41J 15/14
·  ·  ·  and detached from the carriage
 B41J 15/16
·  Means for tensioning or winding the web
 B41J 15/18
·  Multiple-web feeding apparatus
 B41J 15/20
·  ·  for webs superimposed during printing (machines for separating superposed webs B65H 41/00)
 B41J 15/22
·  ·  for feeding webs in separate paths during printing
 B41J 15/24
·  ·  with means for registering the webs with each other
 B41J 17/00
Mechanisms for manipulating page-width impression-transfer material, e.g. carbon paper (in manifolding devices B41L; sheet material for duplicating or marking B41M 5/00)
 B41J 17/02
·  Feeding mechanisms
 B41J 17/04
·  ·  Feed dependent on the record-paper feed, e.g. both moved at the same time
 B41J 17/06
·  ·  ·  "Creep" feed, i.e. impression-transfer material fed slower than the record paper
 B41J 17/07
·  ·  ·  electromagnetically controlled
 B41J 17/08
·  ·  Feed independent of the record-paper feed
 B41J 17/10
·  ·  ·  electromagnetically controlled
 B41J 17/12
·  ·  Special adaptations for ensuring maximum life
 B41J 17/14
·  ·  Automatic arrangements for reversing the feed direction
 B41J 17/16
·  Holders in the machine for sheets of impression-transfer material
 B41J 17/18
·  ·  pivotable to and from the platen
 B41J 17/20
·  ·  slidable to and from the platen
 B41J 17/22
·  Supply arrangements for webs or impression-transfer material
 B41J 17/24
·  ·  Webs supplied from reels or spools attached to the machine (reels per se B65H 75/02)
 B41J 17/26
·  ·  Webs supplied from trays or like supports attached to the machines
 B41J 17/28
·  Arrangements of guides for the impression-transfer material
 B41J 17/30
·  Constructions of guides for the impression-transfer material
 B41J 17/32
·  Detachable carriers or holders for impression-transfer material mechanism
 B41J 17/34
·  Backings for impression-transfer material, e.g. sheets for reducing friction, shields for preventing imprint
 B41J 17/36
·  Alarms, indicators, or feed-disabling devices responsive to material breakage or exhaustion
 B41J 17/38
·  for dealing with the impression-transfer material after use
 B41J 17/40
·  ·  for retracting sheets for re-use
 B41J 17/42
·  ·  for webs
 B41J 19/00
Character- or line-spacing mechanisms (key actions B41J 25/02)
 B41J 19/02
·  with retarding devices, e.g. brakes
 B41J 19/04
·  Sound-deadening or shock-absorbing devices or measures therein (B41J 19/38 takes precedence)
 B41J 19/06
·  ·  Resilient mounting of mechanism
 B41J 19/08
·  ·  Buffers, springs, or like carriage stops
 B41J 19/10
·  ·  Dash-pots
 B41J 19/12
·  ·  Gearing made of special material or specially constructed to reduce sound or shock
 B41J 19/14
·  with means for effecting line or character spacing in either direction
 B41J 19/16
·  Special spacing mechanisms for circular, spiral, or diagonal-printing apparatus
 B41J 19/18
·  Character-spacing or back-spacing mechanisms; Carriage-return or release devices therefor
 B41J 19/20
·  ·  Positive-feed character-spacing mechanisms (controlled by escapements B41J 19/52)
 B41J 19/22
·  ·  ·  acting by friction or gripping effect
 B41J 19/24
·  ·  ·  Pawl and ratchet
 B41J 19/26
·  ·  ·  ·  moving a paper or like carriage
 B41J 19/28
·  ·  ·  ·  moving a paper or like web or strip, e.g. over a stationary support
 B41J 19/30
·  ·  ·  Electromagnetically-operated mechanisms
 B41J 19/32
·  ·  ·  Differential or variable-spacing arrangements
 B41J 19/34
·  ·  Escapement-feed character-spacing mechanisms
 B41J 19/36
·  ·  ·  Driving mechanisms, e.g. springs stressed during carriage return
 B41J 19/38
·  ·  ·  ·  adapted for silent return
 B41J 19/40
·  ·  ·  Escapements having a single pawl or like detent
 B41J 19/42
·  ·  ·  Escapements having two pawls or like detents
 B41J 19/44
·  ·  ·  ·  coacting with two toothed members, e.g. racks or wheels
 B41J 19/46
·  ·  ·  ·  and mounted on a single rocker
 B41J 19/48
·  ·  ·  ·  and mounted on a single slider
 B41J 19/50
·  ·  ·  Electromagnetically-controlled escapements
 B41J 19/52
·  ·  ·  Escapements controlling positive-feed mechanism
 B41J 19/54
·  ·  ·  Construction of universal bars
 B41J 19/56
·  ·  ·  Escapements controlling web or strip feed
 B41J 19/58
·  ·  ·  Differential or variable-spacing arrangements
 B41J 19/60
·  ·  Auxiliary feed or adjustment devices
 B41J 19/62
·  ·  ·  for back-spacing
 B41J 19/64
·  ·  ·  for justifying
 B41J 19/66
·  ·  Carriage-release mechanisms
 B41J 19/68
·  ·  Carriage-return mechanisms, e.g. manually actuated
 B41J 19/70
·  ·  ·  power driven
 B41J 19/72
·  ·  ·  ·  with power stored during character spacing
 B41J 19/74
·  ·  with special means to maintain character-spacing or back-spacing elements in engagement during case-shift or like movement
 B41J 19/76
·  Line-spacing mechanisms (special line-feeds, e.g. long feeds, B41J 11/36)
 B41J 19/78
·  ·  Positive-feed mechanisms
 B41J 19/80
·  ·  ·  Pawl-and-ratchet mechanisms
 B41J 19/82
·  ·  ·  ·  moving a paper or like carriage
 B41J 19/84
·  ·  ·  ·  ·  in the form of a roller rotated for line spacing
 B41J 19/86
·  ·  ·  ·  ·  ·  the pawl being normally in engagement with the ratchet
 B41J 19/88
·  ·  ·  ·  moving a type carriage
 B41J 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
 B41J 19/92
·  ·  ·  Electromagnetically-operated mechanisms
 B41J 19/94
·  ·  ·  automatically operated in response to carriage return
 B41J 19/96
·  ·  ·  Variable-spacing arrangements
 B41J 19/98
·  ·  Escapement-feed mechanisms
 B41J 21/00
Column, tabular, or like printing arrangements; Means for centralising short lines (carriage-release mechanisms B41J 19/66; key actions B41J 25/18)
 B41J 21/02
·  Stops or stop-racks
 B41J 21/04
·  Mechanisms for setting or restoring tabulation stops
 B41J 21/06
·  with means for preventing rebound from stops
 B41J 21/08
·  Mechanisms for initiating, effecting, skipping, or stopping tabulation movement; Means for centralising short lines
 B41J 21/10
·  with central, counter, or equivalent stop projected into path of tabulation stops
 B41J 21/12
·  characterised by arrangements of electrical contacts
 B41J 21/14
·  characterised by denominational arrangements
 B41J 21/16
·  controlled by the sensing of marks or formations on the paper being typed, an undersheet, or the platen
 B41J 21/17
·  controlled by stored information  [5]
 B41J 21/18
·  characterised by applications of scales or indicators
 B41J 23/00
Power drives for actions or mechanisms (B41J 9/00 take precedence)
 B41J 23/02
·  Mechanical power drives
 B41J 23/04
·  ·  with driven mechanism arranged to be clutched to continuously-operating power source
 B41J 23/06
·  ·  ·  by snatch rolls
 B41J 23/08
·  ·  ·  by one-revolution or part-revolution clutches
 B41J 23/10
·  ·  ·  and arrested in selected position
 B41J 23/12
·  ·  Mechanism driven by cams engaging rotating roller
 B41J 23/14
·  ·  Mechanism driven through an oscillating or reciprocating member
 B41J 23/16
·  ·  Mechanism driven by a spring tensioned by power means
 B41J 23/18
·  ·  Continuously-cycling drives
 B41J 23/20
·  Fluid-pressure power drives
 B41J 23/22
·  ·  for key or like type selection
 B41J 23/24
·  ·  for impression mechanisms
 B41J 23/26
·  ·  for platen or carriage movements, e.g. for line spacing, letter spacing, or carriage return
 B41J 23/28
·  ·  for type-carriage movements
 B41J 23/30
·  ·  for case shift
 B41J 23/32
·  Electromagnetic power drives, e.g. applied to key levers
 B41J 23/34
·  ·  applied to elements other than key levers
 B41J 23/36
·  ·  ·  and acting on type members
 B41J 23/38
·  ·  ·  and acting on aligning or case-shift mechanisms
 B41J 25/00
Actions or mechanisms not otherwise provided for
 B41J 25/02
·  Key actions for specified purposes
 B41J 25/04
·  ·  Back-spacing
 B41J 25/06
·  ·  Carriage return
 B41J 25/08
·  ·  Case shift
 B41J 25/10
·  ·  Ink-ribbon adjustment
 B41J 25/12
·  ·  Character spacing
 B41J 25/14
·  ·  Line spacing
 B41J 25/16
·  ·  Line spacing and carriage return by a single key
 B41J 25/18
·  ·  Tabulating
 B41J 25/20
·  Auxiliary type mechanisms for printing distinguishing marks, e.g. for accenting, using dead or half-dead key arrangements, for printing marks in telegraph printers to indicate that machine is receiving
 B41J 25/22
·  for aligning characters for impression (in machines using index setting B41J 5/02)
 B41J 25/24
·  Case-shift mechanisms (B41J 11/14 takes precedence; key actions B41J 25/08); Fount-change arrangements
 B41J 25/304
·  Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface (type carriers sliding for impression B41J 1/36; type carriers swinging for impression B41J 1/40)  [5]
 B41J 25/308
·  ·  with print gap adjustment mechanisms  [5]
 B41J 25/312
·  ·  with print pressure adjustment mechanisms, e.g. pressure-on-the-paper mechanisms  [5]
 B41J 25/316
·  ·  with tilting motion mechanisms relative to paper surface  [5]
 B41J 25/32
·  Impression mechanisms in which a roller co-operates with stationary type-faces
 B41J 25/34
·  Bodily-changeable print heads or carriages (B41J 1/20, B41J 1/22, B41J 1/60 take precedence)  [5]
 B41J 27/00
Inking apparatus
 B41J 27/02
·  with ink applied by pads or rotary discs
 B41J 27/04
·  ·  Pads or discs; Ink-supply arrangements therefor
 B41J 27/06
·  ·  Arrangements to ensure maximum life of pads or discs
 B41J 27/08
·  ·  Arrangements for multicolour work
 B41J 27/10
·  with ink applied by rollers; Ink-supply arrangements therefor
 B41J 27/12
·  ·  Rollers
 B41J 27/14
·  ·  Arrangements for multicolour work
 B41J 27/16
·  with ink deposited electrostatically or electromagnetically, e.g. powdered ink
 B41J 27/18
·  ·  with liquid ink deposited
 B41J 27/20
·  with ink supplied by capillary action, e.g. through porous type-members, through porous platens
 B41J 27/22
·  with inking discs or sectors
 B41J 29/00
Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
 B41J 29/02
·  Framework
 B41J 29/04
·  Means for attaching machines to baseboards
 B41J 29/06
·  Special supports, platforms, or trolleys for supporting machines on tables
 B41J 29/08
·  Sound-deadening or shock-absorbing stands, supports, cases, or pads separate from machines
 B41J 29/10
·  Sound-deadening devices embodied in machines (B41J 19/04 takes precedence)
 B41J 29/12
·  Guards, shields or dust excluders  [5]
 B41J 29/13
·  ·  Cases or covers  [5]
 B41J 29/14
·  Attachments operated by the leg, e.g. the foot or knee
 B41J 29/15
·  Script supports connected to the typewriter or printer (tables, desks, office furniture, in general A47B)  [5]
 B41J 29/16
·  Auxiliary receptacles for articles, e.g. erasers, pencils
 B41J 29/17
·  Cleaning arrangements  [5]
 B41J 29/18
·  Mechanisms for rendering the print visible to the operator (ink-ribbon shifts B41J 35/20)  [5]
 B41J 29/19
·  ·  with reflectors or illuminating devices  [5]
 B41J 29/20
·  Arrangements of counting devices
 B41J 29/22
·  ·  Line counters
 B41J 29/24
·  ·  Word counters
 B41J 29/26
·  Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling  [4]
 B41J 29/28
·  ·  Writing or like instruments in holders or guides
 B41J 29/30
·  ·  Wheels
 B41J 29/32
·  ·  Type-members
 B41J 29/34
·  ·  ·  repeatedly actuated
 B41J 29/36
·  ·  for cancelling or correcting errors by overprinting (B41J 31/00 takes precedence)  [4]
 B41J 29/367
·  ·  ·  sheet media carrying a pigmented transferable correction layer  [4]
 B41J 29/373
·  ·  ·  sheet media bearing an adhesive layer effective to lift off wrongly typed characters  [4]
 B41J 29/377
·  Cooling or ventilating arrangements  [5]
 B41J 29/38
·  Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
 B41J 29/387
·  ·  Automatic cut-off devices  [5]
 B41J 29/393
·  ·  Devices for controlling or analysing the entire machine  [5]
 B41J 29/40
·  Means for printing fixed, i.e. unchanging, matter in addition to selectable matter
 B41J 29/42
·  Scales and indicators, e.g. for determining side margins
 B41J 29/44
·  ·  for determining top and bottom margins or indicating exhaust of paper
 B41J 29/46
·  Applications of alarms, e.g. responsive to approach of end of line (responsive to transfer-material breakage or exhaustion B41J 17/36, B41J 35/36)
 B41J 29/48
·  ·  responsive to breakage or exhaustion of paper or approach of bottom of paper
 B41J 29/50
·  Side-stop mechanisms
 B41J 29/52
·  Top-and-bottom stop mechanisms
 B41J 29/54
·  Locking devices applied to printing mechanisms
 B41J 29/56
·  ·  and manually actuated
 B41J 29/58
·  ·  and automatically actuated
 B41J 29/60
·  ·  ·  in response to failure of power supply
 B41J 29/62
·  ·  ·  by the absence of paper to lock hammer mechanism
 B41J 29/64
·  ·  ·  by a function of the printer to lock the keyboard
 B41J 29/66
·  ·  ·  ·  Locking devices actuated when platen reaches the end of a line
 B41J 29/68
·  ·  ·  by completion of a page or predetermined number of lines or exhaustion of paper to lock the keyboard
 B41J 29/70
·  ·  ·  Interlocks between any two carriage-moving mechanisms, e.g. character-space, back-space, tabulation, carriage-return, or carriage-release mechanisms
 B41J 31/00 - 
B41J 35/00
Ink ribbons; Ink-ribbon mechanisms
 B41J 31/00
Ink ribbons (sheet material for duplicating or marking B41M 5/00; storing webs or tapes, e.g. on reels, B65H 75/00); Renovating or testing ink ribbons
 B41J 31/02
·  Ink ribbons characterised by the material from which they are woven
 B41J 31/04
·  ·  woven from synthetic material
 B41J 31/05
·  Ink ribbons having coatings other than impression-material coatings
 B41J 31/06
·  ·  the coatings being directly on the base material, i.e. below impression-transfer material; Ink ribbons having base material impregnated with material other than impression material
 B41J 31/08
·  ·  the coatings being superimposed on impression-transfer material
 B41J 31/09
·  Ink ribbons characterised by areas carrying media for obliteration or removal of typing errors  [4]
 B41J 31/10
·  Ink ribbons having arrangements to facilitate threading through a machine
 B41J 31/12
·  Ink ribbons having arrangements to prevent undesired contact between the impression-transfer material and machine parts or other articles
 B41J 31/14
·  Renovating or testing ink ribbons
 B41J 31/16
·  ·  while fitted in the machine using the ink ribbons
 B41J 32/00
Ink-ribbon cartridges  [3]
 B41J 32/02
·  for endless ribbons  [3]
 B41J 33/00
Apparatus or arrangements for feeding ink ribbons or like character-size impression-transfer material (ink-ribbon cartridges B41J 32/00)
 B41J 33/02
·  Ribbon arrangements
 B41J 33/04
·  ·  mounted on moving carriages
 B41J 33/06
·  ·  Ribbons associated, but not moving, with typewriter platens, e.g. extending transversely to the length of the platen
 B41J 33/08
·  ·  ·  and extending parallel to the length of the platen
 B41J 33/10
·  ·  Arrangements of endless ribbons
 B41J 33/12
·  ·  Ribbons carried by coaxially-mounted spools
 B41J 33/14
·  Ribbon-feed devices or mechanisms
 B41J 33/16
·  ·  with drive applied to spool or spool spindle
 B41J 33/18
·  ·  ·  by ratchet mechanism (B41J 33/30 takes precedence)
 B41J 33/20
·  ·  ·  by friction
 B41J 33/22
·  ·  ·  by gears or pulleys
 B41J 33/24
·  ·  with drive applied directly to ribbon
 B41J 33/26
·  ·  ·  by rollers engaging the ribbon
 B41J 33/28
·  ·  ·  by mechanism pulling or gripping the ribbon
 B41J 33/30
·  ·  Escapement mechanisms
 B41J 33/32
·  ·  Electromagnetic devices
 B41J 33/34
·  ·  driven by motors independently of the machine as a whole
 B41J 33/36
·  ·  with means for adjusting feeding rate
 B41J 33/38
·  ·  Slow, e.g. "creep", feed mechanisms
 B41J 33/382
·  ·  ·  the ribbon being fed only during carriage return
 B41J 33/384
·  ·  ·  ·  and attached to the carriage during writing
 B41J 33/386
·  ·  ·  the ribbon being fed only by operation of the line-spacing mechanism
 B41J 33/388
·  ·  ·  the ribbon being fed only when type impression takes place
 B41J 33/40
·  ·  with arrangements for reversing the feed direction
 B41J 33/42
·  ·  ·  manually
 B41J 33/44
·  ·  ·  automatically
 B41J 33/46
·  ·  ·  ·  and characterised by its application to mechanism in which two spools are driven by pawl-and-rachet mechanism
 B41J 33/48
·  ·  ·  ·  ·  comprising two pawls and ratchets, one for each spool
 B41J 33/50
·  ·  ·  ·  ·  comprising a single pawl or integral double-tooth pawl selectively engageable with two ratchets, one for each spool
 B41J 33/51
·  ·  ·  ·  and characterised by the use of particular reversing control means
 B41J 33/512
·  ·  ·  ·  ·  using a pivoted reversing-feeler engaging the external periphery of the wound ribbon
 B41J 33/514
·  ·  ·  ·  ·  using a pivoted reversing-feeler engaging the interior of the wound ribbon
 B41J 33/516
·  ·  ·  ·  ·  using a reversing-feeler responsive to the tension of the ribbon
 B41J 33/518
·  ·  ·  ·  ·  the reversing-feeler engaging buttons or the like secured to the ribbon near its ends
 B41J 33/52
·  ·  Braking devices therefor
 B41J 33/54
·  ·  for ensuring maximum life of the ribbon (B41J 33/38 takes precedence; by adjustment of vibrator mechanisms B41J 35/14)
 B41J 33/56
·  ·  ·  Ribbon adjusted transversely
 B41J 33/58
·  ·  ·  Ribbon fed angularly
 B41J 33/60
·  ·  responsive to telegraph code or other extraneous signals
 B41J 35/00
Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms
 B41J 35/02
·  Frames or holders for unwound short lengths of ink ribbons
 B41J 35/03
·  ·  the holder being movable to inoperative position, e.g. by swinging upwardly
 B41J 35/04
·  Ink-ribbon guides
 B41J 35/06
·  ·  stationary
 B41J 35/08
·  ·  with tensioning arrangements
 B41J 35/10
·  ·  Vibrator mechanisms; Driving gear therefor
 B41J 35/12
·  ·  ·  adjustable, e.g. for case shift (key actions B41J 25/02)
 B41J 35/14
·  ·  ·  ·  for multicolour work; for ensuring maximum life of ink ribbon; for rendering ink ribbon inoperative
 B41J 35/16
·  Multicolour arrangements (B41J 35/10 takes precedence)
 B41J 35/18
·  ·  Colour change effected automatically
 B41J 35/20
·  Ink-ribbon shifts, e.g. for exposing print, for case-shift adjustment, for rendering ink ribbon inoperative
 B41J 35/22
·  Mechanisms permitting the selective use of a plurality of ink ribbons
 B41J 35/23
·  ·  with two or more ribbon guides
 B41J 35/24
·  Mechanisms specially adapted for feeding impression-transfer materials of foil form
 B41J 35/26
·  Ink-ribbon shields or backings
 B41J 35/28
·  Detachable carriers or holders for ink-ribbon mechanisms
 B41J 35/30
·  Manifolding or like arrangements
 B41J 35/32
·  ·  for producing a plurality of copies along the printing line by a single ink ribbon
 B41J 35/34
·  ·  using a plurality of separate ink ribbons, e.g. including one hectographic ink ribbon
 B41J 35/35
·  ·  using unwound short lengths of ink ribbons
 B41J 35/36
·  Alarms, indicators, or feed-disabling devices responsive to ink-ribbon breakage or exhaustion
 B41J 35/38
·  Feeding the ink ribbon to waste after use