In Japan, even though
typewriters with
Japanese writing system had been used for businesses and governments, they were limited to specialists and required special skills due to the wide variety of symbols, until computer-based devices came onto the market. Japanese typewriters required the operator to search for and retrieve each character individually from a layout of over 1,000 type slugs. The operation was complicated and demanded considerable skill. For this reason,
mimeographing was widely used for small-scale printing instead of typewriters before the invention of word processors. In countries using Latin alphabet, word processors were relatively easy to develop since text processing required only alphanumeric characters and a few symbols. However, because typewriters were already sufficient for practical needs in Latin-alphabet countries, the demand for expensive dedicated word processors was limited. As a result, many users transitioned directly from typewriters to word processing software on personal computers (PCs) within a short span, and dedicated word processors did not achieve widespread adoption. In contrast, Japan faced challenges such as printing more complex characters than the alphabet and devising
methods for
kanji input, which made development difficult. However, once Japanese word processors appeared, they were quickly embraced. As a result, in 20th-century Japan, the transition often proceeded directly from handwriting and mimeographing to dedicated word processors, and then to word processing software on personal computers—without going through the stage of typewriter use.
The birth of dedicated Japanese word processors ) In May 1977,
Sharp showcased a prototype of a computer-based word processing dedicated device with Japanese writing system in Business Show in Tokyo. The later commercial model (WD-3000), however, did not yet include kana-to-kanji conversion.
Toshiba released the first Japanese word processor in February 1979. The price was 6,300,000 JPY, equivalent to US$45,000. This is selected as one of the
milestones of
IEEE. The
Japanese writing system uses a large number of
kanji (logographic Chinese characters) which require 2 bytes to store, so having one key per each symbol is infeasible. Japanese word processing became possible with the development of the
Japanese input method (a sequence of keypresses, with visual feedback, which selects a character)—now widely used in personal computers. In September 1979, Sharp released its first commercial product WD-3000, which used the industry's first
pen tablet system, instead of keyboard input and kana-to-kanji conversion. It was equipped with an
inkjet printer and priced at 2,950,000 JPY. Even after personal computers became widely available, Japanese word processors remained popular as they tended to be more portable (an "office computer" was initially too large to carry around), and become commonplace for business and academics, even for private individuals in the second half of the 1980s. In Japanese, the word , an abbreviation from gained common currency in 1982 with Fujitsu's commercial for its "My OASYS" word processor.
The personal wāpuro boom At a business show in 1985,
Casio caused a sensation by unveiling the Casio Word HW-100 at the price of 59,800 yen. In response,
Canon followed with the PW-10E at 49,800 yen. This rapid price decline drew media comparisons to the earlier "
calculator wars". Companies such as
Sony and
Seiko Epson also entered the market, triggering a personal word processor boom. NEC, which also produced personal computers, added that even if one were to disappear, due to hardware commonalities the situation would merely amount to a change in name.
The end of dedicated word processor production Entering the 1990s, some models advanced from monochrome to color LCDs, but dedicated word processors gradually lost market share due to the declining prices of personal computers and word-processing software, as well as the appearance of inexpensive, high-performance PC printers. Dedicated word processors' poor capability to access the increasingly popular
Internet further weakened demand. Shipments peaked in terms of unit volume in 1989 and in terms of sales value in 1991, then steadily declined. Household penetration of dedicated word processors also peaked in 1998, only to fall sharply thereafter. Finally, in 1999, PC sales surpassed those of dedicated word processors. In February 2000, Sharp announced the series model WD-CP2, which turned out to be the last new release of a dedicated word processor in Japan. In September 2003, production of that model, along with the WD-VP and WD-MF01, was discontinued, marking the end of dedicated word processor manufacturing by all companies. Within businesses as well, document creation came to be replaced by general-purpose business software and commercially available printers, and Japanese dedicated word processor disappeared from the scene.
Issues following discontinuation For many companies, the question of how to transfer the vast archive of documents created on dedicated word processors to personal computers became a major challenge. Dedicated machines had handled elements such as ruled lines and
ruby character (
furigana) using proprietary methods developed by each manufacturer. Although some PC software included conversion features, ruled lines, unique pictograms, and symbols from different brands could not be converted. Even within a single manufacturer, methods of processing had changed as functions diversified, so in most cases the best that could be done was converting the body text itself. As a result, with the demise of word processors, manufacturers were urged to develop software that would improve reproducibility on personal computers and facilitate data migration. While these tools did not guarantee perfect restoration, they were able to reproduce content to a reasonable degree and served their purpose. Dedicated word processors retained a loyal following, and at one point prices in the secondhand market even rose. Well into the 21st century, they continued to be traded daily at
online auctions regardless of condition. Reasons for the continued support of dedicated word processors include: a strong sense of attachment among generations born up through the mid-1960s who had grown accustomed to them; their high stability and comfort as work environments for writers such as novelists and translators, with long continuous operation free from crashes; the high quality of their keyboards; their usefulness in workplaces concerned about information leaks via networks; and their appeal to collectors of
Shōwa era and
Bubble-era consumer electronics. Furthermore, dedicated word processors had all the necessary functions built directly into the hardware, so they could be used immediately simply by turning on the power. Unlike personal computers, there was little need for complex operations or applying patches (fixes). Conversely, this also meant that they generally could not be updated to handle the latest requirements—for example, most models could not be adapted to support the
seven-digit postal code system. In reality, maintaining these machines has become increasingly difficult year by year due to a variety of factors: the discontinuation of
ink ribbon and printing paper production; LCD panel burn-in caused by poor storage environments exposed to high heat and humidity (sometimes called "vinegar syndrome"); damage to or loss of system disks (caused by deterioration, mold, or copyright restrictions that prevented repair); leakage from batteries left inside units leading to corrosion of the main circuit board; the shutdown of some repair shops due to litigation risks from manufacturers; the end of replacement part supplies for belt-driven
floppy disk drives; the declining availability of floppy disk media; damage to paper-feed knobs; deterioration of printer rollers; and rising repair costs. After the end of official manufacturing and repair support, independent specialists continued repairs by salvaging usable components from existing units and replacing defective parts with them—a practice commonly referred to as "two-for-one" repairs.
Later developments Even after the turn of the 21st century, certain aspects of the dedicated word processor concept continued to live on: the ability to instantly print a document on-site with a thermal printer, to hand over or revise text anywhere without depending on location, and to use the machine conveniently as a
label printer. Drawing on smartphone and tablet technologies, products inspired by dedicated word processors began to appear in the late 2000s—such as LCD- and keyboard-equipped photo printers specialized for
New Year's card printing (e.g., Casio Prinsharu and Epson Nengajō Atena Tatsujin), label printing (e.g., ), and devices like the King Jim dedicated to plain text input. == Word processing software ==