| ReturnTo Theme-Group-Choice | Onelevelup |
| 2C062 | Dot-matrix printers and others | |
| B41J2/00 -2/005;2/22-2/23,101@Z;2/255-2/255@Z;2/30-2/30@Z;2/31;2/485-2/495@Z;2/505-2/515;3/00;3/60 | ||
| B41J2/505,101@A-2/505,101@Z | AA | AA00 PRINTING DATA PROCESSING |
AA01 | AA02 | AA04 | AA06 | AA08 | AA10 | ||||
| . Transfer or storage of printing data | . . Transfer or storage of coded data | . . . Data consisting of codes and printing modification information | . . . relating to control of margin | . . Transfer or storage of bit data | . . . relating to data compression | |||||||
| AA11 | AA12 | AA14 | AA15 | |||||||||
| . Output control of printing data | . . Output buffer storing character codes | . . Output buffer constituted of bit map | . . . Patterns striding over scanning lines | |||||||||
| AA21 | AA22 | AA24 | AA25 | AA27 | AA29 | AA30 | ||||||
| . Control of printing form | . . Character positions in the line | . . Process for character modification or character pattern | . . . Change of printing cycles | . . . from M x N to m x n or bit composition conversion | . . . . Simple proportional enlargement (see Image 18) | . . . . . Correction of step part | ||||||
| AA32 | AA34 | AA35 | AA37 | |||||||||
| . . . . Division of dot patterns to printing elements (see Image 19) | . . . . segmenting patterns under consideration | . . . . . Majority decision processing of segmented patterns | . . . . . Pattern for correction accessed by specified pattern or access of pattern for correction | |||||||||
| AA45 | AA47 | AA49 | ||||||||||
| . . . Pattern rearrangement | . . . . Access change of pattern generator e.g. between line and column | . . . . Use of shift registers | ||||||||||
| AA52 | AA54 | AA56 | AA57 | AA58 | AA59 | AA60 | ||||||
| . . editing output format (free word) | . . . Longitudinal or lateral printing per page or line | . . . Printing of ruled lines or underlines | . . . . having exclusive font patterns | . . . . . supplementing patterns between lines or characters | . . . . by specifying start point or end point or start point or the length | . . . . changing the paper feed amount | ||||||
| AA63 | AA64 | AA66 | AA67 | AA69 | ||||||||
| . . . Pattern composition | . . . . Composite characters | . . . . Composition of variable data and format data | . . . . . Mutual interference prevention e.g. specially adapted for background | . . . . Composition of character patterns and optical images | ||||||||
| AB | AB00 GENERATION OF CHARACTER OR SYMBOL PATTERNS |
AB01 | AB02 | AB03 | AB04 | AB06 | AB08 | AB10 | ||||
| . Non-vector type | . . Matrix type | . . . Patterns without margin bits | . . . driving M where M>m elements by m bits | . . . characterised by dot arrangement of character matrix | . . . having control information other than character bits | . . . Generation of element pattern for enlarged printing | ||||||
| AB11 | AB13 | AB15 | AB17 | AB19 | AB20 | |||||||
| . Vector data type | . Selective use or specification of pattern generators | . Use of random access memory (RAM) | . Pattern generation corresponding to output device e.g. scanning direction: resolution | . characterised by access | . . having attribute information of characters in character specifying codes | |||||||
| B41J2/23,101@E;2/23,101@Z | KA | KA00 SERIAL DOT PRINTER CONTROL IN GENERAL |
KA01 | KA03 | KA05 | KA07 | ||||||
| . printing multiple character lines by single scanning | . printing one character line by multiple scanning | . Processing relating to line spaces | . Handling of printing data | |||||||||
| B41J2/23,101@G | LA | LA00 RECIPROCAL PRINTING OF SERIAL DOT PRINTERS |
LA01 | LA03 | LA05 | LA07 | LA09 | |||||
| . Forward and return paths being same scanning line | . Forward and return paths being different scanning lines | . . Divided printing of capital letters | . . Minimisation of head movement or return frequency | . . Matching of print positions on forward and return paths | ||||||||
| B41J2/23,101@H | MA | MA00 PRINTING SPEED CHANGE OR CONTROL IN SERIAL PRINTERS |
MA01 | MA03 | MA05 | MA07 | MA09 | |||||
| . in response to dot density e.g. ANK and Chinese characters | . Space fast-forward | . corresponding to copying or paper thickness | . corresponding to input rate of data | . Constant speed control of carriage feed | ||||||||
| B41J2/23,101@T | NA | NA00 CHARACTER PITCH CHANGE CONTROL IN SERIAL PRINTERS |
NA01 | NA02 | NA04 | NA06 | ||||||
| . corresponding to characters e.g. W and I | . . having attribute information for each character | . Specification of character space/dot pitch independent of characters e.g. capital letter/lower case letter mode: pica and elite | . by computing the number of digits and the number of characters in one line | |||||||||
| B41J2/30@E;2/30@Z | PA | PA00 CONTROL OF WIRE IMPRESSION FORCE |
PA01 | PA02 | PA04 | PA05 | PA07 | PA09 | PA10 | |||
| . corresponding to paper thickness or copying | . Change of pixel diameter or gradation | . Uniformisation of printing density | . . Dispersion correction for each printing element including the one for coping with curved surface of platen | . . Impression force control by history e.g. single and repeating | . . Response to voltage fluctuation | . . . Constant voltage circuits | ||||||
| PA12 | PA14 | PA16 | PA18 | |||||||||
| . . . Circuits for detecting voltage fluctuation | . . . Load prediction by counting the number of simultaneous driving elements | . . . interrupting impression pulses | . . . changing impression time | |||||||||
| B41J2/30@A;2/30@C;2/30@D | QA | QA00 CHECK OR DETECTION ITEMS OF WIRE DRIVE CIRCUITS |
QA01 | QA02 | QA03 | QA04 | QA05 | QA06 | QA07 | QA09 | ||
| . Detection of wire flight state | . Comparison of printing information and drive output printed results | . Printing of pattern for checking | . Detection of temperature | . Detection of solenoid energising state | . Detection of power supply voltage fluctuation or load state | . Detection of switching element state | . Counting of the number of printing scheduled dots or characters see Image 49) | |||||
| QB | QB00 PROTECTION OR MEASURES AGAINST ABNORMALITIES OF WIRE DRIVE CIRCUITS |
QB01 | QB03 | QB04 | QB06 | QB08 | ||||||
| . shifting printing timing of each element | . prolonging print cycle e.g. lowering printing speed | . . Printing by dividing one line | . . . Printing by reciprocation | . . . setting the way of division or reciprocation | ||||||||
| QB11 | QB12 | QB14 | QB17 | QB19 | ||||||||
| . suspending printing | . . suspending printing at the end of one line | . . setting suspension period length | . Printing suspension visible display or alarm | . by thinning or special pattern printing | ||||||||
| B41J3/60 | RA | RA00 PRINTINGS CHARACTERISED BY PURPOSE |
RA01 | RA03 | RA04 | RA06 | ||||||
| . Printing on special print media (free words) | . Printers for special uses (free words) | . . Label or price tag printers | . Printers with special printing forms (free words for printing forms) | |||||||||
| B41J2/00@Z | SA | SA00 RECORDING BY PLOTTING |
SA01 | SA02 | SA03 | SA04 | SA05 | SA07 | SA08 | SA09 | SA10 | |
| . Scanning mechanisms of recording pens | . . Xx carriage movement Yy paper | . . X carriage Y paper xy recording pen | . . Xx carriage Y paper y recording pen | . . XY carriage | . Control | . . Vector form character pattern recording control | . . . Conversion from matrix pattern | . . Minimisation of distance between plotting end point or the start point | ||||
| SA11 | SA14 | SA15 | SA16 | SA18 | ||||||||
| . . Enlarged or reduced plotting | . Plotting heads | . . Heads rotated for selection of recording pen | . . Mechanisms for pressurising recording pen onto paper | . having recording head other than plotting head |