Wednesday, October 8, 2008

FInal Assesment:Canon Pixma MP160

MAIN PART #2 and ITS MINOR PARTS
Copy settings are standard on the Pixma MP160. You can scale between 25 percent and 400 percent using preset values (scale to fit) or custom values.The copier prints the same speed for black and color print as listed above. A color document takes about 53 seconds, and a 4" x 6" borderless photo about 1 minute 46 seconds. It will make borderless copies and multiple copies. .
Scan options include Save to PC, Save as PDF, Attach to e-mail, and Open with application. This is a CIS scanner. A CIS scanner is more compact than a CCD scanner and needs less power. However, a CCD scanner provides a higher resolution scan. This scanner produces 600 x 1200 dpi (optical), 19,200 x 19,200 (interpolated), 48-bit internal. It will accept a maximum document size of 8.5" x 11.7.Even though the scanner isn't used as frequently as the printing feature, it does come in handy. The top of this printer lifts to reveal the glass plate of the scanner. The lid allows scanning of thicker objects such as notebooks or slim books measuring no more than 3/4" thick, but the object can't weight more than 4.4 pounds.

Monday, October 6, 2008

Summarizing how the gadget functions

The dimensions of this little tool are 3.5” long by 2.5” wide by 1” in thickness. This black box gadget puts out a WHOPPING 975,000 volts. That is nearly 1 million volts! This is clearly a high output stun gun. It puts out more voltage than the police issue M-18 Taser used by law enforcement professionals.This product’s dimensions are about as small as a 10-pack of cigarettes and can fit easily in one’s shirt pocket. The Hot Shot runs on three CR123A (size) lithium 3 V batteries which are included in this set.The unit comes equipped with a safety switch on the lateral aspect of the box and an illuminated red light that notifies you that the weapon is ready to do some damage to the unsuspecting perpetrator.A stainless steel belt clip is found on the back of the unit so that you can mount it on your belt.This machine can provide the perfect element of surprise to your attacker who thinks about messing with you. Just a brief push of the trigger button can fire up a loud warning shock to tell your attacker to back off.The physiological effects of this product include:

1.some pain, muscular contraction, and shock when applied for ½ second,
2.more muscular constractions and a dazed mental state when applied for 1-2 seconds,
3.and finally, loss of balance and muscle control, and absolute mental disorientation and confusion.

Sunday, October 5, 2008

Describing main/ major and minor parts or components

These days, most stun-gun models have two pairs of electrodes: an inner pair and an outer pair. The outer pair, the charge electrodes, are spaced a good distance apart, so current will only flow if you insert an outside conductor. If the current can't flow across these electrodes, it flows to the inner pair, the test electrodes. These electrodes are close enough that the electric current can leap between them. The moving current ionizes the air particles in the gap, producing a visible spark and crackling noise. The circuit basically consists of a fairly standard single transistor transformer oscillator that steps the voltage up to a respectably high level. It's rectified by four diodes in series and used to charge a capacitor via a heavy winding on a pulse transformer. When the voltage is high enough to strike over the cross shaped spark gap, it dumps the capacitor through the pulse transformer generating a sharp pulse of high voltage on the secondary winding.
I always wondered how they managed to generate such a high voltage output from such a low voltage input. If you consider that the output of these things can be in the region of 100,000v (apparently) derived from a small 9v battery, then that makes for a voltage multiplication factor of over eleven thousand times. In reality it's even higher because the voltage across the battery gets dragged down by the high current demand. I brought the circuit board back as a technical novelty and have decided to post it here to satisfy the technical cravings of fellow techno dudes.