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Element System Font “RT Font”

Element System Font “RT Font”

RICOH's Own Scalable Font with Low Data Volume and Multi-Language support

  • Minimum Memory
  • Multi-languages
  • Scalable
  • Adjustable Weight

RT Font with Much Lower Data Volume Release in January, 2014. (Click here for details.)

Element System Font “RT Font”

RT Font

Featuring minimum memory usage, this scalable font is ideal in terms of smooth contour and layout flexibility.
RT Font is available for various languages including simplified Chinese characters and is independent of OSs.
Please contact for additional data regarding display speed and work memory requirements.

Characters Structured by a Combination of Common Elements

As represented by MS Mincho/MS Gothic, the structure of each letter or character in standard TrueType font is completely outlined, tending towards larger data volume requirements.
Element System Font structures every character by combining elements which include vertical and horizontal lines as well as a “right stroke”.
Since every element is used in common with every character, data volume requirements are significantly reduced.


RICOH’s Element System Font is consisted:

  • font data
  • rasterizer (software).

The software rasterizes the bitmap data at the required size and format, extracting the requested character data from the font data. This software is installed in the firmware of the customer's product.

Rasterizer Outline

The requested character is rasterized to bitmap data in the following order:

(1) Refers to the unit structure list for the specified character.
(2) Refers to the unit data used.
(3) Refers to the element data used in the units.
(4) Arranges the units and elements in accordance with the unit structure list.
(5) Outputs the bitmap data after filling the elements.

RT Font Data File
RT Font Data File


Minimum Memory Requirements for Installation

Major reduction in data volume made possible by means of a font definition method that combines a number of elements.
For example, Japanese font (CP932/7990 characters) only requires a minimum of 360KB for installation.
NOTE: Data volume will vary in accordance with typeface.

Multi-languages Compatibility

RT Font is compatible with European languages including English and French as well as simplified and traditional Chinese Korean, Thai, Arabic, Hebrew and Vietnamese.

Style Function Support

RT Font supports a variety of style functions including grayscaling, bordering, rotation, italicization and font-weight adjustment.

Selectable Rendering

For straight lines, you can select “Sharp Mode” for non-grayscale rendering and “Smooth Mode” for grayscale rendering. Being able to switch rendering modes expands the scope of character expression and provides you with an option to consider a single implementation for application to various products.
NOTE: Mode selection is available for New Gothic typeface including Japanese and European languages. Only smooth mode is available for the other typefaces.

image:sharp mode
Sharp Mode

image:smooth mode
Smooth Mode

image:The above diagram illustrates how RT Font is capable of meeting various needs for application across a wide range of devices.

Vertical/Horizontal Arbitrary Multiplication (Sharp Mode only)

Ensures the design consistency of characters by maintaining the width balance of horizontal and vertical lines whether a character is displayed wide or narrow mode.

image:Vertical/Horizontal Arbitrary Multiplication (Sharp Mode only)

Bitmap Replacement for Ultra-Small Size Display

Very small characters, such as those of 10 or 12 dots, suffer from reduced clarity.
Having a bitmap for smaller sizes makes extremely small characters appear much clearer.

NOTE: Use of the bitmap replacement function requires adequate data volume for loading bitmap.

Example of bitmap replacement (12*12 dots)

image: Bitmap Replacement for Ultra-Small Size Display


A border may be added to the rasterized image of a character to enhance its affinity with the background color or image.
Border widths can also be adjusted. The size of each sample characters shown below is 32 x 32 dots.

Border width 1dot

image: Border width 1dot

Border width 2dot

image: Border width 2dot

Border width 3dot

image: Border width 3dot


The rasterized image of a character can be rotated in increments of one degree.
The size of each sample characters shown below is 32 x 32 dots.

image: Rotation


The upper part of the rasterized image of a character may be slanted on a dot basis.
The size of each sample characters shown below is 32 x 32 dots.

image: Oblique

Weight Adjustment

Using just the data for a single font, the thickness of the line (weight value) can be adjusted.

image: Weight adjustment

Appraisal Agreement

At RICOH, we offer an opportunity to evaluate our RT Font on an actual device prior to entering into a purchase agreement. For details, please contact us.