Cleaning Scanner Glass (Inside) hp3970

That has nothing to do with it, idiot. His stupidity lies in the duct tape suggestion.

Glass might look green on edge, but a piece that thin is NOT going to alter the color of a capture, so standard double strength glass would surely work just fine, idiot.

Wow, you don't care how many people see how truely stupid you are. I know a guy that tried 'standard double strength glass' instead of the optical grade glass. It caused so much distortion in the scanned images that it was useless, just like you.

The duct tape helps but is not 100%. That's why I suggested also turning the scanner upside down and then cracking the glass enough such that it can be pulled away.

I did a very brief search for replacement glass.

If you don't like the duct tape idea then how about this EVEN crazier idea!! :)

Take a circular saw and cut off the entire top of the scanner. Clean the glass and then glue the top back on..... :)

D from BC

Great prices. I was impressed, and thought the numbers would be much higher.

You're nuts. You should have, at the very least, said "dremel tool".

Oh! oh! ..I gotta add an improvement.. A table saw!!! Yeah... The blade can be adjusted just enough to through the plastic.. The fence will make nice parallel cuts. Just treat the whole scanner like a log at the saw mill.. :P Keep rotating the scanner until all sides are cut. Clean the glass.. Then find a rubber molding to join the top back on.

A dremel will wander all over and make crooked/melted cuts.. D from BC

Not if you use the sawtooth bit, and a guide jig.

Never worked on HP scanners, but I've fixed Canons & various other brands plenty of times, & the usual steps to dissasemble go something like this:

• Hold lid by sides & lift until the supports pop out of the slots.
• Look for a retaining strip in the area that was covered by the hinge of the lid.
• If present, unscrew / unclip to reveal one end of the glass lid. CAREFULLY lift open end above case & slide out. * Goto: CLEANING.
• Otherwise, place scanner upside down on SOFT SURFACE, grab a torch, & look under unit for round screw slots or square/rectangular retaining-clip slots. Remove screws or 'pop' clips with long, flatblade screwdriver.
• If it uses clips, it's usually neccessary to apply a little tension between the halves of the shell while 'popping' the clips/hooks to keep them released. I use tongue-depressers or similar to keep the halves from 'clicking' back together while I'm doing the other clips.

When the case is split, it should be easy to figure out how the cover glass is being retained. Wearing clean gloves, remove glass

CLEANING:

• Put on a pair of lint-free white cotton gloves, or a pair of clean rubber gloves.
• Place glass on clean towel, folded several times.
• Spray Windex or similar ammonia-based glass cleaner on a clean lens cloth or similar soft, *lint-free* cloth.
• Clean top side with damp cloth, dry with a *different* cloth.
• Flip glass, touching only the sides.
• Clean this side, as above.

• Slide glass slowly & carefully back into the case, in exactly the reverse of the way you removed it. With some cases, it can be useful to tie a ribbon or similar around the glass first, so you can support it with your other hand, so it can't fall inside the case if you slip, etc. Using your gloved finger, make sure the glass is seated solidly, & flat, as it's not always obvious, & a bad fit will give you poorly focussed/blurred scans.

• Without removing your gloves, reassemble the unit.

• Test. (Duh.)

Replacement glass for scanners, copiers, etc must be:

And yes, Prongy / JackShephard is a useless idiot, but of course you already knew that. ;^)

Flashlight. A propane torch is too extreme.

You'll need to clean FOUR surfaces; the glass (platen), the calibration strip, the lamp, and the optics.

The glass and the lamp will be OK with windex. The calibration strip is a black or black/white region that is used to calibrate at power-on (maybe a Q-tip with isoporopanol). And the optics (usually a visible mirror) can be tricky; either spray/drip dry or use a low-residue cleaner (Freon TF). It's possible to gently use a Kimwipe (lint-free wiper) without damaging the front-surface mirror, but try to avoid touching.

If there really is smoke residue, the whole plastic case might benefit from a wipedown; I've found a pinch of lye in a cup of distilled water cuts through smokestains. Don't try this on anything but glass and plastic, and DO rinse.

Can't be, I haven't smoked since 1993, and NEVER in this house ;-)

...Jim Thompson

-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | |

I have one more razz idea for fixing that foggy on the inside scanner problem... Ghee :)

Put the whole thing in a bath of alcohol (or some electronics safe solvent). Let it fill up with fluid but not all the way..some air inside the scanner will be needed for the next step.. Step 2: Shake the scanner like a making a Martini. Hopefully the solvent will remove the stuff from inside the glass.

Spoiler: This will most likely degrease all the mechanics and spread lubricants everywhere..making the glass more icky..

However...here's a spin off idea :P Step 1: Drill a hole into the side of the scanner near the glass Step 2: Turn the scanner upside down Step 3: Inject cleaning solvent so it only makes contact with the glass Step 4: Swish the solvent around. Do not let the solvent make contact with anything else. Step 5: On the final swish...Have all the fluid run to one end and then prop the scanner so the fluid can evaporate..

Spin Off Idea 2 Drill a hole big enough to insert a magnet with a cleaning pad on it.. Use another padded magnet to drag it around. I think a similar method is used to clean aquariums.

D from BC

You're still a "Not ready for prime time player". :(

You're *still* a retard.

He is no such thing and is worth a thousand times more than an potty mouthed mentally diseased psycho such as yourself.

IME some scanners outgas internally for whatever reason.

That was what first came to my mind as well. I thought he was going to melt the clips apart.