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Homemade lamp made from trash. Making a camera from an old flatbed scanner What can be made from a scanner

Kind people gave me this fairly old scanner, Mustek 6000p, device Windows times 95 and large white plastic cases. As a rarity, it is not of great value, but it would be a pity to throw it away without looking inside).

Actually, all its electronic contents, the case, are sent to the trash.

The illuminator from the scanning carriage is a conventional cold cathode fluorescent lamp (CCFL), similar to those used in the backlight of LCD matrices.

Board from the carriage. On the left side we see a high-voltage inverter; it’s time to try to light the lamp.

In the left corner is the 7812 integrated stabilizer, designated Q8, from which it is easy to understand which tracks the inverter receives power from. At its input, when the scanner is turned on, there is about 14 volts, but the lamp does not light up, how can I start it? There are not many tracks leading to the section of the board with the inverter from the connector that connects the carriage board to the main board, so let’s assume that transistor Q5 contains a switch that starts the lamp.

Using tweezers, we close resistor R3, connected to the base of the transistor, to + power, and... let there be light!

Having figured out what's what, we'll cut off all the unnecessary stuff, solder a resistor-jumper between R3 and the power supply...

... and pins for the printer’s native power connector.

Let's get such a neat inverter board, check it again.

This, of course, is not enough to illuminate the workplace, but you can make a backlight in some drawer similar to the lamp in the refrigerator. An equally elderly mouse, the same age as the scanner, worked well as a body donor. The switch will be a reed switch with normally closed contacts.

Assembled. It's a pity that the buttons do not carry any functional load =)

We attach the lamp and body with double-sided tape. There is a magnet on the door hard drive on the same tape. Not particularly aesthetically pleasing, but it gets the job done.

More than enough to illuminate a small space

An attentive reader will notice that in the photo of the board in the mouse case there is already a jumper instead of a stabilizer - it is no longer needed, the inverter is powered by a home server, which is located on the same cabinet.

Your scanner does not work with the latest version operating system? Don’t rush to the store for a new one: CHIP will offer universal free solution for any devices. CHIP will tell you how to use the VueScan program to use an outdated scanner to work with a new OS. Problems with using outdated scanners are often associated with the lack of the latest versions of the corresponding drivers, both in Windows and from manufacturers. However, in most cases the resolution and quality of such devices is still quite acceptable. Of course, you can create a second virtual OS and run scans from there, but VueScan offers a more practical solution. A free basic version of this software with limited functionality allows you to bring your old scanner back into service for use when needed. Moreover, even the standard and professional versions of this utility cost about 1200 and 2500 rubles, respectively, with additional professional capabilities, such as calibration, will cost you less than new scanner from a famous brand.

In any case, it's worth a try. First, make sure that the VueScan app supports your scanner model. You will find a list of devices on the program website (short link: b23.ru/hc4t). Page for specific model contains information about supported functions and features. There's even a download link here latest version programs. Since there are often minor fixes, we recommend downloading VueScan directly from hamrick.com/#download. The difference in versions will be noticeable later, depending on whether you have license key. You can purchase the program at any time, but all of the items described below
actions are also available in basic version.

VueScan will automatically detect a running scanner and use the available driver. If the device is not yet functioning, press the “Win+Pause” key combination and launch Device Manager. In it, find your scanner in the “Imaging Devices” category. Right-click on it and run the Update Drivers command. Now you need to select the “Browse for driver software on this computer” option. Set the location to “C:VueScan” and click “Next”. You can even replace the driver this way: first remove the old one, restart Windows and connect the VueScan driver.

In stages 2 and 3 in step by step guide Below you will see how easy and fast scanning is in VueScan using the customized procedure. The generated files of decent quality will not contain watermarks. In addition, the program will allow you to select the resolution of the scanned image, the type (extension) of the saved file, and also set the white balance in advance. You can also manually adjust colors by checking them in detail on the histogram curves and immediately improve color reproduction. In addition, you can subsequently adjust the brightness, contrast and colors in graphic editor.

How to do it?

1 NEW DRIVER VueScan works with thousands of even outdated scanner models, using its own drivers if necessary, and allows you to get results in a few clicks thanks to standard options. The program interface is completely localized.

2 QUICK START Select “Scan to File” in the “Task” item, set the “Media” - for example, “Image” - and the scan quality (the “For editing” and “For archive” types have highest quality). The result of the “Print” option will be files in JPEG format, and if you specify the quality “For editing” you will receive TIFF images.

3 FLEXIBLE CRAMING In playback mode, you can set the frame on the Crop tab auto mode using numerous default formats or manually - “User installation”.

4 ADVANCED CUSTOMIZATION OPTIONS Click the “More” button in the bottom menu. They will open before you additional features scan settings.

5 “OUTPUT” TAB» Here you choose the save location, file type (such as TIFF, PDF, text OCR or RAW), and additional saving options. The OCR file works even in the basic version of the program.

6 COLOR SETTING In the Color tab, you can change the Color Balance from White Balance to Incandescent or Fluorescent lamps" When optimizing, the black point, white point, curve and brightness settings will help, which you will see by clicking the “More” button.

7 WORKING WITH CURVES From the Image menu, select Image Graph to view an analysis of the image and impact changes made. This is very useful when fine tuning.

8 WIRELESS CONNECTION Network scanner owners can use the VueScan Mobile app to scan images directly to their iPad or iPhone. The commercial version of the desktop program offers even more settings and format options, as well as the ability to directly send results via email.

People most often throw away things that could still be used, albeit not for their intended purpose. Sometimes it’s bittersweet to see things that are completely functional and being thrown into the trash.

One example of manufacturing is assembling a lamp from an old scanner with your own hands.

To make a homemade lamp, an old Mustek 6000p scanner was used; it was relevant back in Windows times 95, the scanner requires realtime access and therefore modern systems It is terribly slow, spending 4-5 minutes scanning a page.

This is what is inside the scanner, well, except for the scanning element pulling motor.

The illuminator from the scanning carriage is a conventional cold cathode fluorescent lamp (CCFL), similar to those used in the backlight of LCD matrices.

Board from the carriage. On the left side you can see the high-voltage inverter, which is used to power the scanner lamp.

Using tweezers, we close resistor R3, connected to the base of the transistor, to + power, and... let there be light!

Having figured out what's what, we'll cut off all the unnecessary stuff, solder a resistor-jumper between R3 and the power supply...

... and pins for the printer’s native power connector.

Let's get such a neat inverter board, check it again.

Assembled. It's a pity that the buttons do not carry any functional load =)

We attach the lamp and body with double-sided tape. On the door there is a magnet from the hard drive on the same tape. Not particularly aesthetically pleasing, but it gets the job done.

More than enough to illuminate a small space

About how to use an old scanner together with a Debian server to scan when you press a button, and even with automatic sorting.

Why is this necessary?

This is suitable for anyone who is unhappy with paper piles in the workplace. Eg:

For schoolchildren and students, those for whom the topic of piles of accumulated handouts at school, technical school or university is relevant.
Office employees who have a great many of the same papers and letters accumulated
Ordinary people - to scan any incoming letters, bills and checks (as you know, checks tend to fade, this is exactly my problem - you will need to scan a large number of checks, but this is not particularly convenient)

How do I imagine this?

Yes, very simple. I put the piece of paper in the scanner, pressed the button, and waited. sound signal about the end of scanning and processing, took out a piece of paper, if necessary - GOTO 10.

And what happened to me?

A smoothly running system that also allows batch scanning and automatic sorting into folders, logging and other problems - what you write into the script is what will happen.

They once gave me an Epson Perfection 1200U scanner. A simple scanner connected via USB, quite old, but with good resolution. I wanted to connect it to my computer - and here’s the problem: it’s designed for 110 volts. Okay, later I took out the transformer and connected it. It works, but only under Windows XP - there are no drivers for Windows 7 and are not expected. On my work computer, Windows 7 x64 - and so, like a fool, I launched the virtual machine every time I needed to scan something, and there was no other scanner nearby.
*A place for bitter regrets about unscrupulous manufacturers*

Time passed, the work computer changed at the behest of a careless mug of tea, motherfucking her leg. Decided on new computer install Debian, because it’s more familiar. And then the moment came again when it was necessary to scan something, and urgently. I connect the scanner - and it works, although there is some tension with the ICM profiles. Apparently, someone was greedy to donate them for open source, or it was enough for me to just find them and install them - I didn’t bother to figure it out, I wanted to sleep too much. The most important thing is that you can conveniently scan anything. Wait, what if you connect to a server without a GUI and run scanimage? Hmm, it works. Class!

So, there is a button on the scanner body. She has never been able to use Windows, zero emotions. Here, however, too. A Google query found two projects - scanbuttond and scanbd. The first one is old, the last commit was in 2006, but was immediately found in the repositories. I decided to leave the second one for later, the reason is simple - during compilation, some problems of various kinds constantly popped up, and, although each of them was solved in a couple of lines in the console, there were quite a lot of them, so I gave up, and I wanted to sleep. I’ll use scanbuttond, but if it’s relevant, I think it’s no problem to add all the scripts a little under scanbd. The question, of course, is how much of a problem it is... But for now - scanbuttond.

Getting started with scanbuttond

I install scanbuttond from the repositories, run scanbuttond, look in /var/log/daemon.log, press the button, sleepbuttond happily notifies that the button is pressed and then released. Cool!
What next? Then everything is simple. First of all, edit /etc/default/scanbuttond and enable the daemon to start along with the system, and launch it with the service scanbuttond start command. What scripts will be called?
The first is initscanner.sh.example (rename, citizens, don’t be shy, remove this.example), it is called every time any scanner is connected, and basically (as far as I can tell) is an interface for connecting various crutches, and sometimes - alerts and logging.
The second script is more interesting; it is called directly when the button is pressed. It’s called buttonpressed.sh.example, and the last part of the name is again superfluous. This script is called every time the button is clicked. This is where you need to put all these different scanning commands and so on.
Well, I created two scripts to process button clicks. The first one is in BASH. When a button is pressed, scanbuttond passes control to this script, specifying the button number and the name of the scanner as $1 and $2. There is one scanner, one button - I don’t have to pay attention to the arguments (I still want to sleep), but I remembered it for later. The first script - buttonpressed.sh - calls scanimage with predefined parameters, transfers the finished image in TIFF to a folder in the home directory, converts tiff to jpg and then calls the second script. The second Python script selects a name for the image based on the occupied names.

The first script is buttonpressed.sh

#!/bin/sh #Most of the script was blatantly stolen by someone #However, never mind, # daemon's name DAEMON=scanbuttond # securely create temporary file to avoid race condition attacks and to get some sleep TMPFILE=`mktemp / tmp/$DAEMON.XXXXXX` # lock file LOCKFILE="/tmp/$DAEMON.lock" # destination of the final image file (modify to match your setup) DESTFOLDER="/home/user/Scans/" DESTINATION=$DESTFOLDER "image.tiff" # remove temporary file on abort trap "rm -f $TMPFILE" 0 1 15 # function: create lock file with scanbuttond"s PID mk_lock() ( pidof $DAEMON > $LOCKFILE ) # function: remove temporary and lock files clean_up () ( test -e $LOCKFILE && rm -f $LOCKFILE rm -f $TMPFILE ) # function: check if lock file exists and print an error message using logger chk_lock() ( if [ -e $LOCKFILE ]; then #Another scanning operation in progress logger "scanbuttond: trying to start scanning operation while another is in progress " exit 1 fi ) # function: the actual scan command (modify to match your sleep) scan() ( #parameters for scanning selected by me under my scanner at random in order to better scan black and white documents scanimage --format=tiff --resolution 300 --mode Gray --gamma-correction "High contrast printing" > $DESTINATION convert $DESTINATION $DESTFOLDER"image. jpg" logger "Filename: " `python /etc/scanbuttond/convert_scan.py` rm $DESTINATION ) chk_lock mk_lock scan clean_up

Second script - convert_scan.py

import os filename = "image.jpg" directory = "/home/user/Scans" os.chdir(directory) try: filenames = except KeyError: filenames = counter = 1 new_filename = "scan_000.jpg" while new_filename in filenames: new_filename = "scan_"+str(counter).zfill(3)+".jpg" counter += 1 print new_filename os.rename(filename, new_filename)

To use it, we change the DESTFOLDER variable in the first script and directory in the second.
I started to launch it all. Manually launching the first script works like a charm. But if you press the button, then no problem. It wasn’t until my sleepy head that I immediately figured out that the problem was in permissions; apparently, the fact was that the output of the scripts was not shown anywhere, and I only figured out to run scanbuttond in the foreground and look at the output at 5 am. In short, the problem is that in daemon mode, all scripts are launched from the saned user, just like the daemon itself, in general. What steps need to be taken?
Let's assume that scanbuttond is launched from the user saned, the folder for storing photos is /home/user/Scans, and, in addition to everything else, the user user must have access to the folder.
usermod -aG saned user #add user to an existing group saned chown -R user:saned /home/user/Scans #Assign the owner of the folder to the saned group chmod -R 770 /home/user/Scans# Set the necessary rights to the folder
The result is that the scanner works with a button, it puts all the photos in the home directory, but it didn’t scan what needed to be scanned. In short, as always, instead of solving the problem, I wrote a remedy automatic solution. As always, I want to sleep.

But I want more!

Namely:
Automatic sorting of scans into directories. How do I imagine this?

>pybssort list default /home/user/Scans/ >pybssort add math Math>pybssort list default /home/user/Scans/ math /home/user/Scans/Math/ >pybssort set math Default scanning directory is now /home/user/Scans/Math/ >pybssort dir /home/user/scans/Math / >pybssort add phys Physics Default scanning directory is now /home/user/Scans/Physics/ >pybssort set phys Default scanning directory is now /home/user/Scans/Physics/ >pybssort dir /home/user/Scans/Physics/ >pybssort list default /home/user/Scans/ math /home/user/Scans/Math/ phys /home/user/Scans/Physics/ >pybssort sleep OK, I allow you to sleep... No, wait, finish your article! >pybssort del math OK >pybssort list default /home/user/Scans/ phys /home/user/Scans/Physics/

The list, add, del, set commands are intended to change the scan folder. The dir command - to display a folder, used directly in scripts.

What's the point?

You can change the scanning folder at any time with one command in the console. Moreover, any user can do this - if this is undesirable, you just need to change the permissions on the database folder. You can create contexts, view them - all with one command.

First, we sorted the papers into piles on the floor by topic, and took the archives with notes on physics.
In the console we type pybssort add phys Physics.
We put one piece of paper in, press the button, wait until the end of scanning, throw out the scanned piece of paper and put in the next one.
All scans are in the /home/user/Scans/Physics folder.
We get to the math notes, type pybssort add math Math, scan further - and all subsequent scans in /home/user/Scans/Math.
We found another piece of paper with a note on physics, type pybssort set phys - and again everything flies to /home/user/Scans/Physics.

Hmm, what should we call all these default, phys, math? I decided to call them contexts, since a scan of an algebra test only makes sense in a folder called Math, articles about healthy sleep best get enough sleep in the context of the Sleep folder, and so on.

What happened in the end?

A simple Python program. The bottom line is this: all contexts are stored in the SQLite database, and the program retrieves them from there if necessary. Active in this moment The context is generally stored in a separate file in plain text, it was somehow stupid, in my opinion, to create a table with one column and tinker with it. There is a basic set of functions for working with these contexts, a function for starting work from scratch (creates a table and folders), you can rob cows... you can finally sleep... I take functions for working with the database from the web.py framework, on which I develop my own small projects.
Why not use the built-in sleeplite3 sqlite3 module? Why do I take a whole web framework to take just web.database from it? The answer is simple - it's plain laziness. I'm writing a program focusing on the main thing, and I don't want to delve into SQLite queries and write insert into contexts values(name, folder); concatenation, I want to db.insert("contexts", name=name, folder=folder) and sleep. Yes, that's why my program requires python-webpy, if anyone can suggest something as easy to use (I'm talking about working with databases), I'd be grateful.

What do you need to do to install?
wget https://gist.github.com/CRImier/7330722/raw/pybssort.py #Change the starting directory for scanning nano pybssort.py chmod +x pybssort.py mv pybssort.py /usr/local/bin/pybssort

I note that it needs to be launched as root for the first time, since this is necessary to create folders in /var/lib to store the database there. After the first launch, root is not required. You can edit the path to the folder at the beginning of the script, but watch the permissions - the poor saned will cry bitter tears from the inability to access your folder. You don't want to upset him, right?

How can it be connected to existing scripts? Yes, just in the first script you need to insert “pybssort dir” instead of the hardcoded DESTINATION, and in the second script you need to pass the same variable as a command line argument.
Something like this:

First script

... # destination of the final image file (modify to match your setup) DESTFOLDER=`pybssort dir` DESTINATION=$DESTFOLDER"image.tiff" ... # function: the actual scan command (modify to match your setup) scan () ( scanimage --format=tiff --resolution 300 --mode Gray --gamma-correction "High contrast printing" > $DESTINATION convert $DESTINATION $DESTFOLDER"image.jpg" logger "Filename: " `python /etc/ scanbuttond/convert_scan.py $DESTFOLDER` rm $DESTINATION ) ...

Second script

import os import sys #needed to receive the argument... directory = sys.argv

To debug your own scripts, I advise you to run the following sequence of commands in your working environment: service scanbuttond stop sudo -u saned scanbuttond -f & tail -f /var/log/messages & tail -f /var/log/daemon.log &
And use it in echo, logger and print scripts (for Python).

Criticism about everyone three scripts, execution, beauty of the code, indentation, spelling, topic design, bad practices in code and logic, relevance of the solution, possible additions, adequacy of the author and other things are welcome.

This BASH script really got to me after a while - it just couldn’t fit normal error handling. I gave up and rewrote the script in Python. In the end it works even better. The advantages are error handling + normal logs, audio alerts and seemingly beautiful code =) Available The readme contains installation information. Everything works flawlessly for me... Well, if something doesn’t work, please let me know =)

First, a short introduction.

One day it was time to clean up at work, clear away the rubble of old boxes from monitors, printers, cases, etc. And while sorting through this rubble, two old fabulous scanners, UMAX 1200S and, in my opinion, 600S, caught my eye.
And the time has come to mock them, just as they mocked me at one time.

Having quickly disassembled the first 1200, I took out everything more or less useful from there, namely: the hardened pin along which the scanner complex with the lamp ran, the microcircuit and the scanning sensor itself with a system of mirrors. Having taken out all the giblets, I decided to figure out what was valuable there. I don’t know the technology of those years, but the scanning sensor appeared to be gold-plated both outside and inside. Gold did not seduce me, the analysis of the scanner continued.
In addition to the mirror systems in the main moving part of the scanner and lens, there was a lamp very similar to a lamp daylight, but only a couple of millimeters thick.

A power circuit was connected to the lamp, from which two wires came off the connector, which greatly tempted me to connect it to some source direct current. Fortunately, the previous box contained several power supplies from switches, monitors and who knows what else.

Having sorted out all the trash and thrown out the excess, I started testing.

To begin with, a power supply of 5 volts and 2 amps was selected. Having connected the lamp, I saw that it lit up, but not completely. A few cm in the far part of the lamp were dark. It's time for 9 volt block power supply with 2.2 amperes. (the one above)
At the same time, the lamp lit up quite brightly and completely.

Knowing that the scanner worked from a 12V 2A power supply and knowing the hot nature of the lamp, as well as the fact that it is not intended for permanent job, I did not select b.p. more power, especially since the brightness was enough for me.

And so, when I came home, I found a use for these lamps - to illuminate the space under the table.

For a long time I was irritated by the fact that under the table, crawling to the computer, I had to take a flashlight and at the same time several problems arose both with the batteries for it and with the fact that one hand was occupied and I had to be distracted, watching where the flashlight was shining. It was decided to hang the lamp under the table, the place was marked and the tools were laid out.

It turned out to be very convenient that the standard lamp reflector from the scanner was removable and had its own mount.

The time has come to create a box for the lamp's power supply circuit, so as not to hang it bare and ugly. For this purpose, we took 6mm thick white poster plastic and a lower dummy blank from a reel of blanks.

The tools needed were: a Dremel with a cutting disc, a round file, two small drills (in my case, a hexagon), a paper cutter with replaceable blades, a soldering iron and screwdrivers.

What was available was: a connector for the required power supply, double-sided tape, two small screws and a long screw with a nut.
Carefully cut two approximately identical pieces of plastic with a knife and glue them together with a small piece of double-sided tape to align them along the edges with the Dremel.

Don’t forget to put on safety glasses and preferably a respirator, let’s get to work.

I’ll backtrack a little, it’s clear what the glasses are for, but I’ll explain the purpose of the respirator a little. The fact is that the Dremel rotates up to 33 thousand revolutions per minute and the dust from working with it turns out to be quite fine. And in order not to inhale unknown dust, you need a respirator

Having thoroughly messed everything up workplace and having made the two pieces of plastic identical, we proceed to cutting out a hole for the power connector using a knife and a pencil.
Enough with a pencil top part power connector, and attaching it to to the right place on plastic - we will get an approximate stencil for cutting.
Having cut it out, we apply both pieces of plastic to the circuit, inserting the power connector in advance. Next, we look at how the main fastening screw will pass through the entire structure, mark a hole first on one side, and, pushing it into the already drilled hole, mark and make a second hole.
Next, take the second plate, where the nut will be. We thread and tighten the screw with the nut on it. Then, with a little force, using a hot soldering iron, press the nut into the plastic until it stops protruding. Cool and unscrew the screw.
We take both lids of our box and make small belts on the inside about a millimeter by millimeter; stiffening ribs will be inserted there, which are also decorative plugs covering the edges of the power supply circuit.
By and large, almost everything is ready, all that remains is to make the mounts for the lamp itself.

To do this, we take the same white plastic and cut out two small rectangles, make holes with drills, first small, then larger, but the holes should not be exactly in the center because then the fasteners will not allow the lamp to rotate; they need to be made with a slight downward shift. Next, tighten it with screws and glue double-sided tape to the outer base of the resulting mounting planes.

We insert the lamp connector into its power supply circuit, and the circuit into our home-made box and slowly screw it in, but not completely.
Now let's start making the side walls. To do this, we mark the cutting location in the already prepared “blank gasket” and cut out the wall in advance to a slightly larger size. We apply it to the box and see how it fits. When you like the size, you can make a second wall.
Having attached the finished first wall as a template, we adjust the second one in size.
When everything is ready and all the burrs have been removed, we proceed to assembly.
We take the power supply circuit, cut off the connector for external connection power supply and solder our connector for the power supply to it. We reassemble the entire box, having previously insulated all exposed contacts and cleaned all traces of fiddling. We twist it, and at the end, insert the stiffening ribs, after which we twist it until such a state that the box does not fall apart. If everything does not hold well, you can glue the stiffening ribs along the edges with additional superglue so that it does not fall apart, either from a fall or from your hands.

Not everything worked out well for me, namely: the screw ended up outside the lid, so that it had to be cut down.

Then, on the side of the nut, we glue four small pieces of double-sided tape, so that later you can quickly and easily remove it. I also didn’t have a switch button, it will be soldered onto the bp cord. Later.

If someone doesn't want to mess around like that (I just needed to understand how Dremel works with different materials), he can find any suitable box and fix the diagram in it.

If you want to have a backlight in your case, I can advise you to connect to any 12V line with the required resistance.

You can also try to use a lamp without its reflector (besides, it is not really a reflector, but rather a damper since it is not reflective, but white and black). But to do this, you need to be extremely careful at the ends of the lamp, since the wires soldered into the glass are quite thick and can be broken off, or the glass can crack in these places. There are special rubberized holders on the edges of the lamp; I would recommend using some of your own fasteners on them. The lamp worked for about 40 minutes with my bp. It practically didn’t heat up, neither the reflector nor the rubber bands on its sides. If the voltage supplied to the lamp is greater than 9V, the lamp will most likely overheat and possibly fail. If you decide to use it without a reflector, although it will illuminate everything around, it will also shine into your eyes, which somehow didn’t seem like enough to me.

I also want to warn you about the transformer on the lamp power circuit. I don’t know what kind of current it produces and what it represents, but if you bring your finger, or another part of the body, close to its contacts, an electric arc appears, which, for example, burned a pattern on my finger. The distance to the contacts can be up to two millimeters.
Of course, it won’t kill you with an electric shock, but you can get a small burn.

So, the finished option...

30.11.2020

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