2120
Preparations

Projection Distance and Size

Use the figures, tables, and formulas below to determine the projection size and projection distance.
(Projection sizes are approximate values for full-size picture with no keystone adjustment.)

Placement Styles

As shown in the figures below, this device can be placed in 4 different styles.
The factory setting is “floor-mounted front projection.” Set the Projection mode in the
default setting menu
p.33
, in accordance with your needs.
Placement
Floor-mounted front projection

WARNING

•Always obey the instructions listed in IMPORTANT SAFETY INSTRUCTIONS when placing the unit.
Attempting to clean/replace the lamp at a high site by yourself may cause you to drop down, thus
resulting in injury.
• If you wish to mount the projector on the ceiling, be sure to ask your dealer to do so. Mounting the
projector on a ceiling requires special ceiling brackets (sold separately) and specialized knowledge.
Improper mounting could cause the projector to fall, resulting in an accident.
•If the projector is ceiling-mounted, install the breaker for turning off the power in case of anomaly. Let
everyone involved with the use of the projector know that fact.
Floor-mounted rear projection
Ceiling-mounted front projection Ceiling-mounted rear projection
a
H
90°
a is the distance (m) between the lens and the
screen, and corresponds to a range of 1.20 m to
11.00 m. H is the height from the image bottom to the
center of the lens.
Screen As seen from above
Lens center
As seen from the side
a (min length) = projection size (inches) – 1.1975
28.263
a (max length) = projection size (inches) – 1.0446
23.486
90°
A computer can be operated using the projector’s remote control. This function is available
on any computer with the Windows 98/98SE, Windows Me, Windows 2000, or Windows XP
OS, that is equipped with a USB port supporting the USB 1.1 (The mouse remote control is
supported on OS 9 or OS X for the Macintosh).
The operation cannot be guaranteed for all the environments of computers.
1

Connecting a computer

Connect the supplied Mouse remote control receiver to the computer.
Mouse remote control receiver
To USB port
2

Operating a computer

The mouse remote control function is available when the remote control is set to [PC
Mode]. (See “Switching operation modes” .)
Point the Mouse remote control at the mouse remote control receiver, and
operate the remote control’s buttons.
●Moving the mouse pointer
Move the pointer control button in the direction that you wish the mouse pointer to
move, then press.
●To left click
Press the L-CLICK button.
●To right click
Press the R-CLICK button.
●To drag and drop
Move the pointer control button in a (L-)clicked state, then when the pointer is over
the desired location, release the button.
●Using the computer’s up and down arrow key functions
Press the and buttons to switch PowerPoint® slides.
Remote Control Front Remote Control Rear
Operating a computer using the remote control

The remote control may fail to operate

if the mouse remote control receiver is

exposed to bright sunlight or

fluorescent lighting.

In such a case, change position or

direction of the mouse remote control

receiver and retry.

ENTER
R-CLICK
RETURN
ESC
Pointer control
R-CLICK
L-CLICK
projection projection distance a (m) height (H)
min length max length
size (inches) (zooming max) (zooming min) (cm)
29.2 — 1.20 5.5
35.1 1.20 1.45 6.6
40 1.37 1.66 7.3
60 2.08 2.51 11.0
80 2.79 3.36 14.6
100 3.50 4.21 18.3
150 5.26 6.34 27.4
200 7.03 8.47 36.6
250 8.80 10.60 45.7
300 10.57 — 54.9