Scanner Focus Adjustment

Heli · 08-16-2005, 04:08 AM

My Scanner "ACER 620S" is several years old and works all right.

However lately the scanning results are slightly out of focus, blurred at the edges as compared to the original.

Since it is an optical process, is there a method to adjust the focus?

The handbook does not give a clue.

Any information on this is highly appreciated.

Thanks
Heli

ebackhus · 08-16-2005, 02:52 PM

Almost every projector I've used has a manual focus that consists of a wheel or dial. Sometimes it's the ring around the front lens.

InspectorGadget · 08-16-2005, 10:03 PM

It's a scanner, my friend, not a projector.

Most scanner optics I've seen are glued in with optical cement, but I haven't seen a whole lot of these, especially lately. It's probably more an issue of alignment than focus. If it's out of alignment, you can pretty much forget it, unless you found a loose screw and knew exactly how to position the articulating parts to screw it back down.

Scanners are pretty cheap and plentiful these days; it might be time to retire it. They're not really made to be serviced, AFAIK.

- The Inspector

Heli · 08-17-2005, 01:29 PM

Thanks Inspector!
You're probabely right, I should get a new scanner.
All the best
Heli

**MD_Willington** · 08-17-2005, 02:01 PM

I agree, they are throw away components, no adjustments other than set at factory, once it stops focussing, time to throw it away...

ebackhus · 08-17-2005, 02:25 PM

Heh, got my threads crossed I suppose.

If the scanner is going on the blink and is old then it's best to just replace it.

08-16-2005, 04:08 AM	#1 (permalink)
Heli Registered User Join Date: Dec 2004 Posts: 23 OS: WinXP, Win98	Scanner Focus Adjustment My Scanner "ACER 620S" is several years old and works all right. However lately the scanning results are slightly out of focus, blurred at the edges as compared to the original. Since it is an optical process, is there a method to adjust the focus? The handbook does not give a clue. Any information on this is highly appreciated. Thanks Heli

08-16-2005, 02:52 PM	#2 (permalink)
ebackhus Manager, Design Join Date: Apr 2005 Location: SATX Posts: 14,286 OS: WinXP Pro SP3/Windows 7 RTM My System Blog Entries: 28	Almost every projector I've used has a manual focus that consists of a wheel or dial. Sometimes it's the ring around the front lens. __________________ ----------------------------- There are no dumb questions, unless a customer is asking them. Help in the fight against cancer and other serious illnesses.

08-17-2005, 02:01 PM	#5 (permalink)
MD_Willington Join Date: Jan 2005 Location: WA State & BC Posts: 587 OS: XP	I agree, they are throw away components, no adjustments other than set at factory, once it stops focussing, time to throw it away... __________________ Mainboard: PCC M848ALU / ECS L7S7A2 / ECS 748-A, HDD: Western Digital 40Gb, RAM: 2-256Mb DDR266 by Micron 4x AGP Card: 3DForce4-MX440, CDRW: Liteon 52x32x52, PSU: Antec True430, CPU: XP2200+ (AXDA2200DUV3C) *It's OK to be ignorant; it's not OK to play stupid.* *Never assume you are entitled to an answer. You are not.*

08-17-2005, 02:25 PM	#6 (permalink)
ebackhus Manager, Design Join Date: Apr 2005 Location: SATX Posts: 14,286 OS: WinXP Pro SP3/Windows 7 RTM My System Blog Entries: 28	Heh, got my threads crossed I suppose. If the scanner is going on the blink and is old then it's best to just replace it. __________________ ----------------------------- There are no dumb questions, unless a customer is asking them. Help in the fight against cancer and other serious illnesses.

08-16-2005, 10:03 PM	#3 (permalink)
InspectorGadget Registered User Join Date: May 2005 Location: San Jose, CA Posts: 80 OS: FreeBSD x 2, XP Pro	It's a scanner, my friend, not a projector. Most scanner optics I've seen are glued in with optical cement, but I haven't seen a whole lot of these, especially lately. It's probably more an issue of alignment than focus. If it's out of alignment, you can pretty much forget it, unless you found a loose screw and knew exactly how to position the articulating parts to screw it back down. Scanners are pretty cheap and plentiful these days; it might be time to retire it. They're not really made to be serviced, AFAIK. - The Inspector

08-17-2005, 01:29 PM	#4 (permalink)
Heli Registered User Join Date: Dec 2004 Posts: 23 OS: WinXP, Win98	Thanks Inspector! You're probabely right, I should get a new scanner. All the best Heli