NEC P420x Projector User Manual

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 Projecting an Image from an Angle (Geometric Correction Tool 
in Image Express Utility Lite)
 
The	 Geometric	 Correction	Tool	(GCT)	 function	 allows	you	to	correct	 distortion	 of	images	 projected	 even	from	an	
angle. 	
What you can do with GCT
•	 The	GCT	feature	includes	the	following	three	functions
•	4-point Correction:	You 	can 	fit 	a 	projected 	image 	within 	the 	border 	of 	the 	screen 	easily 	by 	align 	the 	four 	corners	
of	an	image	to	the	ones	of	the	screen.
•	 Multi-point Correction:	You	 can	correct	 a	distorted	 image	on	the	 corner	 of	a	wall	 or	irregular	 shaped	screen	
by	using	many	separated	screens	to	correct	the	image	as	well	as	4-point	Correction.
•	Parameters Correction:	You	 can	correct	 a	distorted	 image	by	using	 a	combination	 of	transformational	 rules	
prepared	in	advance.
This	section	will	show	an	example	for	use	with	4-point	Correction.
For	information	 about	“Multi-point	 Correction”	and	 “Parameters	 Correction”,	see	the	help	 file	of	Image	 Express	
Utility	Lite. 	(→	page	162)	
•	 Your	correction	data	can	be	stored	in	the	projector	or	your	computer	which	can	be	restored	when	necessary.
•	 The	GCT	function	is	available	with	a	USB	cable,	wired	or	wireless	LAN	connection,	and	video	cable. 	
Projecting an Image from an Angle (GCT)
This	section	 will	show	 an	example	 for	use	 with	 USB	 Display	 (using	a	USB	 cable	 to	connect	 a	computer	 and	the	pro-
jector).
•
	 The	USB	Display	function	will	automatically	display	the	control	window	
•	 For	 a	video	 cable	or	LAN	 connection,	 install	and	start	 Image	 Express	 Utility	Lite	in	your	 computer	 beforehand. 	(→ 
page	34)
Preparation: 	Adjust	the	projector	position	or	the	zoom	so	that	the	projected	image	can	cover	the	whole	screen	area.
1.	 Click	the	 “		”	(Picture)	icon	and	then	the	 “		”	button.
  The “4-point Correction” window will be displayed.
2.	 Click	the	 “Start	Correction” 	button	and	then	“Start	4-point	Correction” 	button.
 A green frame and a mouse pointer (  ) will be displayed.
•	 Four	[	•	]	marks	will	be	appeared	at	four	corners	of	the	green	frame 
						

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3.	 Use	the	mouse	to	click	the	[ • ]	mark	of	which	corner	you	wish	to	move.
 The currently selected [ •	]	mark	will	turn	red.
(In the above example, Windows screens are omitted for clarification.)
4.	 Drag	the	selected	[ • ]	mark	to	the	point	you	wish	to	correct	and	drop	it.
•	 When	 you	click	 somewhere	 within	the	project	 image	area,	the	nearest	 [	•	]	 mark	 will	go	to	the	 position	 where	
the mouse cursor is.
5.	 Repeat	Step	3	and	4	to	correct	the	distortion	of	the	projected	image.
6.	 After	completing, 	right-click	the	mouse.
 The green frame and the mouse pointer will disappear from the projected image area. This will complete the cor-
rection.
7.	 Click	the	 “X”	(close)	button	on	the	 “4-point	Correction”	window.
	 The	“4-point	Correction” 	window	will	disappear	and	the	4-point	correction	will	take	effect.
8.	 Click	the	“		”	button	on	the	control	window	to	exit	the	GCT.
TIP:
•	 After	 performing	 the	4-point	 correction,	 you	can	save	 the	4-point	 correction	 data	to	the	 projector	 by	clicking	 “File”	→	“Writing	 to	
the	projector…”	on	the	“4-point	Correction”	window.
•	 See	the	Help	 of	Image	 Express	 Utility	Lite	for	operating	 “4-point	Correction”	 window	and	other	 functions	 than	GCT.	 (→	page	
162) 
						

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  Projecting  Images  or  Videos  from  the  Projector  over  a  LAN 
(Image Express Utility 2.0)
What you can do with Image Express Utility 2.0
•	 Using	Image	Express	 Utility	2.0	allows	 you	to	send	 the	screens	 of	your	 computers	 to	the	 projector	 via	wired/wire-
less	LAN.
	 The	 difference	 from	Image	 Express	 Utility	Lite	is	that	 projected	 images	can	be	sent	 from	 a	computer	 to	not	 only	
one	projector	but	also	to	two	or	more	projectors	at	the	same	time.
	 When	 “Meeting	Mode” 	is	used,	projected	images	can	be	sent	and	received	between	two	or	more	computers.
• High-speed, high-quality image transmissions based on NEC’s original compression algorithm
	 NEC’s	 original	compression	 algorithm	allows	high-quality	 images	to	be	 sent	 over	 the	network	 at	high	 speed,	 from	
your	computer	to	the	projector.
• Simultaneous projection by multiple projectors
	 Images	 can	be	sent	 from	 a	computer	 to	not	 only	 one	projector	 but	also	 to	two	 or	more	 projectors	 at	the	 same	
time.
• “Easy Connection” function for connecting wireless LAN
	 By	using	 “Easy	Connection” 	function*1,	the	complicated	setting	of	wireless	LAN	can	be	simplified.
*1	 This	function	 can	be	used	 when	 Windows	 XP	is	used	 as	the	 OS	 and	 when	 you	have	 a	“Computer	 Adminis-
trator”	privilege. 	If	 the	 OS	 is	Windows	 7/Windows	 Vista,	input	of	logon	 password	 as	“Administrator” 	may	 be	
prompted. 	 
						

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• Projected images can be transferred and saved to computers.
	 When	 “Meeting	Mode”	is	 used,	 projected	 images	can	be	sent	 to	the	 computers	 of	all	 the	 participants	 (attendants)	
of	a	“Meeting”. 	The	received	images	can	be	saved	to	your	computer	with	a	memo	(text	data)	attached.
Attendant
Attendant Presenter
Attendant
• 
1-click switching of presenter
	 When	 switching	to	another	 presenter	 during	the	conference,	 the	participants	 (attendants)	 can	simply	 click	a	button	
to	switch	over	to	the	new	presenter.
•  Central management of the projecting computer
	 Using	 the	Training	 Mode	allows	 you	to	use	 a	single	 computer	 (Manager)	 to	manage	 which	computer	 (Attendant)	
projects.	Possible	 operation	 includes	switching	 projecting	 computers	 to	project	 from,	as	well	 as	temporarily	 termi-
nating	communication	with	the	projector.
Attendant	A
Attendant	D
(presenter)
Attendant	B Attendant	C
Manager
Mr . D, 	please	star t
y our	presentation.
NOTE::
The	Training	Mode	is	not	installed	via	the	“Typical”	installation	option	when	Image	Express	Utility	2.0	is	installed.
To	 use	 Training	 Mode,	select	“Extension”	 installation	option	on	the	 install	 selection	 screen	that	is	displayed	 while	Image	 Express	
Utility	2.0	installation	is	in	progress,	and	select	“Training	Mode	(Attendant)”	or	“Training	Mode	(Manager)”.
Connecting the projector to a LAN
Connect	 the	projector	 to	the	 LAN	 by	following	 the	instructions	 in	“Connecting	 to	a	Wired	 LAN”	(→	page	138),	 “Con-
necting	to	a	 Wireless	LAN” 	(→	page	139)	and	“9	Application	Menus” 	(→	page	105) 
						

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Basic Operation of Image Express Utility 2.0
This	section	explains	the	following	three	cases	as	examples	of	operating	Image	Express	Utility	2.0.
(1)	 Transferring	images	to	the	projector
(2)	 Holding	a	conference
(3)	 Participating	in	a	conference
Sending Images to Projector
• Connecting projector
1	 Turn	on	the	power	to	the	projector	for	which	LAN	has	been	set.
2	 Click	Windows	 [Start]	→	[All	 Programs]	→	[NEC	 Projector	 User	Supportware]	→	[Image	 Express	 Utility	2.0]	
→	[Image	Express	Utility	2.0	], 	in	that	order.
	 The	“Selection	Of	Network	Connections” 	window	will	be	displayed.
	 A	list	of	the	network	equipment	connected	to	your	computer	will	be	displayed.
IMPORTANT:
A	screen	 like	the	one	 below	 is	displayed	 when	the	software	 is	started	 on	a	PC	 installed	 with	Windows	 XP	Service	 Pack	2	(SP2)	 (or	
later).
Click	“Unblock”	if	this	is	displayed.	
3	 Select	the	network	equipment	that	is	to	be	used	and	click	[OK].
	 Select	 the	network	 device	displaying	 “Easy	Connection” 	if	 the	 product	 LAN	setting	 is	for	 “Easy	 Connection.” 	This	
will call up the “Projector List” window. 
						

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4	 Check()	the	projector	to	connect	and	click	[Connect].
	 If	the	name	of	the	projector	to	connect	is	not	on	the	list	or	if	it	is	hidden,	click	[Update].
Click4-1
Click4-2
 The screen of your computer will be projected from the projector.
 At this time, the input signal of the projector will automatically change to “NETWORK”.
• Transferring images
When	 your	computer	 is	connected	 to	the	 projector,	 the	screen	 of	the	 computer	 is	projected	 from	the	projector	 as	is.	To	
make	your	presentation	by	using	a	PowerPoint	file,	open	the	PowerPoint	file	and	start	your	presentation. 
						

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• Stopping or resuming the transmission of images
The	transmission	of	the	screen	of	the	computer	to	the	projector	can	be	temporarily	stopped	and	then	resumed.
1	 Click	the	projector	icon	()	on	the	Windows	taskbar.
 A pop-up menu will be displayed.
2	 Click	[Stop	Sending].
	 The	projector	icon	on	the	taskbar	will	change	( → ).
NOTE:
Even	if	the	screen	of	the	computer	is	changed	in	this	status,	the	image	projected	from	the	projector	does	not	change.
To	manipulate	the	screen	that	should	not	be	disclosed	(projected	from	the	projector),	stop	transmission.
3	 Click	the	projector	icon	()	on	the	 Windows	taskbar.
 A pop-up menu will be displayed.
4	 Click	[Start	Sending].
	 The	projector	icon	on	the	taskbar	will	change	( → ).
 The transmission of the screen for the computer will be resumed, and the current screen of the computer will be 
projected from the projector.
• End the transmission of images
Exit	Image	Express	Utility	2.0.
1	 Click	the	projector	icon	()	on	the	 Windows	taskbar.
 A pop-up menu will be displayed.
2	 Click	[Exit]. 
						

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Holding Conferences
• Holding conferences
1	 Follow	steps	1	through	4	in	“Connecting	projector”	of	“Sending	Images	to	Projector” 	(→	page	167).
 The screen of your computer will be projected from the projector.
• Disclose a file to the participants of the conference.
NOTE:
To	disclose	a	file	to	the	participants,	selection	can	be	made	only	in	folder	units.
Therefore,	a	folder	only	having	files	that	can	be	disclosed	to	the	participants	must	be	created	in	advance.
1	 Click	the	projector	icon	()	on	the	 Windows	taskbar.
 A pop-up menu will be displayed.
2	 Before	clicking	[Send	to	PC	and	Projector], 	check	that	there	is	a	“	•	”	mark	applied.
3	 Click	the	[Image	Express	Utility	2.0]	button	on	the	taskbar.
 The presenter window will be opened.
4	 Click	[Select	Folder].
Click4 
						

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5	 Select	a	folder	saving	the	file	to	be	disclosed	to	the	participants,	and	click	[OK].
 The file in the selected folder will be displayed in the list of files to transfer.
6	 Click	[Download].
 The file will be shown to the participants.
NOTE:
When	 the	computer	 is	connected	 to	the	 projector,	 the	computer	 screen	that	is	in	 of	 being	 progress	 is	also	 projected	 from	the	projec-
tor.	To	manipulate	a	screen	that	should	not	be	shown	(not	projected),	temporarily	stop	the	transmission	(→	page	169).
• Ending conference
1	 Click	[File]	in	the	presenter	window, 	and	click	[Exit].
	 You	can	also	end	the	conference	by	clicking	[×]	at	the	upper	right	of	the	presenter	window.
Participating in Conference
• Participating in conferences
1	 Click	Windows	 [Start]	→	[All	 Programs]	→	[NEC	 Projector	 User	Supportware]	→	[Image	 Express	 Utility	2.0]	
→	[Image	Express	Utility	2.0	], 	in	that	order.
	 The	“Selection	Of	Network	Connections” 	window	will	be	displayed.
	 A	list	of	the	network	equipment	connected	to	your	computer	will	be	displayed.
IMPORTANT:
A	screen	 like	the	one	 below	 is	displayed	 when	the	software	 is	started	 on	a	PC	 installed	 with	Windows	 XP	Service	 Pack	2	(SP2)	 (or	
later).
Click	“Unblock”	if	this	is	displayed.	
2	 Select	the	network	equipment	that	is	to	be	used	and	click	[OK].
	 Select	 the	network	 device	displaying	 “Easy	Connection” 	if	 the	 product	 LAN	setting	 is	for	 “Easy	 Connection.” 	This	
will call up the “ Meeting List” window. 
						

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3	 Click	the	Meeting	Name	to	participate,	and	click	[Connect].
Click3
 The computer will be connected to the selected conference and the attendant window will be displayed.
 If the presenter selects “Send to PC And Projector”, the image projected from the projector is displayed in the at-
tendant window.