Any scanner experts? I picked up a Ricoh IS420 (similar to IS430, manual is available online) for cheap, (yeah right), so it does all its initializing things then gives the 2 flashing lights on the front which indicates a bad lamp. This is a big large format scanner so worth fixing in my opinion as parts are available. So, the lamp is green (?), and is bright enough to hurt my eyes so I guess its ok? When the scanner initializes it moves the lamp assy an inch or so back and forth then raises the paper feeder and beeps and fails. Now I got it cheap enough to buy a new lamp, BUT is there some other stuff I should check? The mirrors are very clean and I guess installed correctly, this printer is very user friendly from a lamp/mirror replacement point. Any ideas? Do the ccd's fail? TIA
Are you saying the SCANNER lamp is green, not the LEDs that are supposed to indicate something ?
I assume that's a color scanner. At Ricoh's website it looks like the drivers are available but I couldn't get the manual. Maybe it is somewhere else but, it seems to me tht a color scanner should have a white light. Every one I've ever seen did.
However I think it would be one hell of a strange failure mode for the lamp to turn green.
Maybe it uses three lamps ? That doesn't sound too likely but I guess anything is possible.
I think I found the IS420 manual, but it's 1) in German and 2) on a site that does a drive-by download of a suspicious EXE along with the PDF. It also doesn't ever say "I am the IS420 manual" in it. But anyway: the two LEDs on the front of the scanner and the two LEDs on the ADF have to be read together; the combinations that involve the two on the front both blinking are:
Scanner ADF green amber green amber Meaning blink blink off on Lamp protection cap open blink blink on on Lamp error blink blink blink blink System error
If you have the first one, apparently the plate that covers the lamp, at the back edge of the scanner glass, is removable. The fix is to remove it and reseat it. You might also look around for how it knows that the plate is loose, like a microswitch or photo interrupter, and see if that looks beat up.
If you have the second one, it says the CCD is not detecting any light from the lamp. It says to 1) reinstall the lamp you have and then 2) try a new lamp. To do 1), you remove the lamp plate, remove the cap over the lamp connector, unplug the lamp connector, hold the green part at the right end of the lamp, shove the lamp to the left, and lift up the right end.
You might look to see if the CCD is dirty, or maybe has a sticker or something over the "lens". Check the optical path in general for reflectors/mirrors that are loose, out of place, etc.
If you know what the lamp voltage is supposed to be, you might measure the voltage as close to the lamp as you can, and compare it to specs. This lamp will draw relatively a lot of juice, so if any of the contacts, wiring, connectors, etc have higher than normal resistance, the voltage to the lamp will drop by a lot.
Maybe lay a mirror on the scanner glass when it starts up? If the lamp or CCD is just barely out of spec, perhaps the extra light from the mirror (vs the presumably white plastic underside of the lid) will make it happy.
There is a "reset" button (needs a pencil) to the left of the DIP switch block. You have to reset it to get it to take a new SCSI ID.
The factory setting of the DIP switches is apparently #1 on (down) and all the rest, #2 through #8, off (up).
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