Ricoh FT5233-S EDITOR

EDITOR

(Machine Code: A916)

12 February 1992 SPECIFICATIONS

1. SPECIFICATIONS

Maximum Original Size: A3/LDG
Error Tolerance:
Functions: Delete Area Mode

Dimensions:
(W x D x H)

Weight: Approximately 2.6 kg (5.8 lb)

Power Source: 5 V 0.25 A (from copier)
Host Copier: A074

±2.5 mm

Save Area Mode
Erase Center Mode
Erase Edge Mode
Black in Area Mode
Color in Area Mode
Highlight Color Mode
Centering Mode Size
Size Magnification Mode
Overlay Mode.

528 mm x 468 mm x 54 mm
(20.8" x 18.5" x 2.2")

(including stylus and cable)

Editor

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ELECTRICAL COMPONENT LAYOUT 12 February 1992

2. ELECTRICAL COMPONENT LAYOUT

1. Main PCB

2. Stylus

3. Positioning Sheet

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12 February 1992 ELECTRICAL COMPONENT DESCRIPTION

3. ELECTRICAL COMPONENT DESCRIPTION

PCBs

Main Controls the Editor and drives the positioning sheet

OTHERS

Positioning Sheet Detects the stylus position
Stylus Initializes detection of the posit ion

Editor

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BASIC OPERATION 12 February 1992

4. BASIC OPERATION

[B]

[A]

Y

X

There are resistors [A] (carbon sheets) in the positioning sheet aligned in the
X and Y directions. When part of the positioning sheet is pressed with the
stylus pen, voltage corresponding to the combination of the resistors is
detected.

The detected data is transmitted to the copier as the coordinate position. This
detection method also applie s t o the m od e sele ctio n pa ds [B ].

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12 February 1992 DETECTING METHOD

5. DETECTING METHOD

Carbon Sheet

Insulator Dot

T1

Example:

Switch

T2

Coodinate Point

XH

YLYH

XL

A/D 8 bit

The positioning sheets consists of two carbo n she et s for X an d Y dir e ctio n,
and insulator dots located in-between the two carbo n sheets.

When the positoning sheet is pressed with the stylus pen, the switch in the
stylus pen turns on and starts the detection of the coordinate point. Also, the
upper carbon sheet contacts the lower carbon sheet at the coordinate point.
Therefore, the voltage correspondi ng to the coordinate point is sent to the
A/D converter.

Coordinate Point in X Direction:

The voltage of the coordinate point in the X direction is sent to the A/D
converter through the Y line as the switching transistor T1 is turned ON and
the voltage is applied to the X line. At this time, the switching transistor T2
should be OFF.

Coordinate Point in Y Direction:

By changing the ON/OFF position of the switching transistors T1 and T2, the
voltage of the coordinate point in the Y direction is sent to the A/D converter
through the X line.

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Editor