Machine will not scan, blue light only blinks.

https://www.aquasana.com/info/education/time-for-a-filter-change

How do you reset a Brita filter indicator?

1. Press the Reset button firmly for 5 seconds. If needed, use a capped ballpoint pen.
2. The green, yellow and red lights will simultaneously blink.
3. Release the RESET button when only the green light blinks.

Did the light start blinking? Unplug the USB cable from the scanner, and replug.

• Pressing and holding LOAD/EJECT and CLEANING buttons,
• press POWER button and hold it until You will see blinking INK OUT and PAPER OUT leds.
• Release all buttons.
• In 2-3 seconds time press and hold LOAD/EJECT button, until all leds will blink.

canon printer. remove all traces of paper in the paper path. remove the power plug and replace after about 30 seconds. restart the machine and clear the orange button.

Blinking Attention Light HP LaserJet 1320 Series Printer - The printer displays an orange blinking attention light which will not clear. This usually indicates one of the following issues have occurred. Perform the following in the order provided to troubleshoot and resolve the issue.
1. Insufficient power. Disconnect the power cord from any surge protectors or power strips and plug the unit directly into an electrical wall outlet.
2. There is a paper jam in the printer.
3. The top cover is open. Open the top cover, reseat the print cartridge, and close the top cover, making certain it is shut properly.
4. No paper was loaded in tray 2 or the tray was not loaded properly causing a mispick. Perform the following steps to load tray 2.
A. Pull the tray out of the printer and remove any paper.
B. Move the blue side width guide outward to match the paper size that is being loaded. Locate the blue guide pointer on the left side of the tray. If using a letter-size (8.5 by 11 inch) paper, match the guide point with the LTR/LGL engraving located on the bottom, left-side of the lift plate.
C. Locate the blue tab on the rear paper-length guide. Locate the triangle-shaped pointer in the middle-right on the bottom of the tray. Press on the blue tab and adjust it so that the triangle-shaped pointer matches the paper size that is being loaded. If using letter-size (8.5 by 11 inch) paper, match the triangle-shaped pointer with the LTR engraving on the bottom of the tray.
D. Place the paper in the tray and make sure that it is flat at all four corners. Keep the paper below the height down arrows on the paper-length guide in the rear of the tray.
E. Slide the tray back in the printer.
5. The tray 2 paper level indicator is stuck.
6. If the printer comes back to a Ready state, print a Self-Test/Configuration page. If the printer is not in a Ready state, proceed to step 7.
A. Verify the printer is in a Ready state. (The green LED next to the U-shaped icon is on steady and no other lights are on.)
B. Press down on the green GO button until the orange Attention light comes on (approximately 5 seconds), and then immediately release the GO button. The green GO button will begin to blink and a Self-Test/Configuration page will print.
7. If the attention light is still on, perform a cold reset. A cold reset, sets most, but not all, default variables stored in NVRAM back to the factory default values. It typically does not reset the page count, paper tray sizes, localization language, or formatter number. Complete the following to perform a cold reset.
A. Turn the printer off.
B. Press and hold down the green GO button.
C. Turn the printer on and continue to hold the green GO button for at least 5 seconds, but not longer than 15 seconds. During the process, the Attention LED will turn on.
D. Release the GO button.
NOTE: If both the Attention light and the Ready LEDs turn on before the GO button is released, the cold reset procedure must be started over at step 1.
E. The printer LEDs begin cycling. The cold reset process runs until completion and the printer returns to the Ready state.

Hi ...

Most of the time this problem comes when the paper is not loaded correctly. Follow the below instructions to load papers to the cassette and I am sure this will resolve your problem. I will keep monitoring your responce and if required, i'll look for a work arround.

Follow this procedure to load paper / envelope in the cassette:

1. Pull out the cassette from the machine.
   
   
   
   
2. Remove the cover from the cassette.
   
   
3. Fan out the sheets of paper so that they do not stick together.
   
   
4. Align the edges of the paper.
   
   
   
   
5. If the cassette is not yet extended, use your thumb to press the tab (indicated by the pink circular outline) and release the latch.
   
   
6. After the latch is released, remove your thumb from the tab. Then extend the cassette until a click is heard.
   
   
   
   
7. Load paper on the upper-right corner of the cassette with the print side facing down.
   
   Note:
   * Since the Credit Card sized paper, Canon Photo Stickers, and Legal sized paper cannot be fed from the cassette, load them in the auto sheet feeder (ASF).
   * When loading A5 or larger sized paper (nonstandard-size paper: 203mm / 8inches or more in length), extend the cassette by pinching the tab.
   
   
   
8. Grasp the paper guide (A) and align it to the long edge of the envelope stack (2). Align the front edge of the paper stack in the same way (3).
   
   
   
   
9. Close the lid and push the cassette all the way into the printer.
   
   
10. Press the <Open> button and pull out the extension completely.
    
    
11. Press the <Feed Switch> button to turn on the Cassette light.
    
    
    
    *MP500 shown.
    
    Note:
    If the Auto Sheet Feeder lamp lights, press the Feed Switch button to light the Cassette lamp.
    If the Cassette lamp does not light even after pressing the Feed Switch button, Paper Source in the printer driver may be set to the setting other than the Feed Switch button.
    

Loading on envelopes
Paper Type
Precaution
Envelope (DL / #10 )
Set paper with the flap closed.

1. Press down firmly on the edges of the envelopes to make the folds crisp. Also, press firmly on the area that corresponds to the edges of the back flap.
   
   
2. Remove any curling by holding the edges diagonally and bending them gently.
   
   
   
   
3. If the edges of the envelope are inflated or are curling, place the envelope on a flat surface. With a pen, press down while moving it from the center toward the edges of the envelope.
   
   
4. Ensure that no curl or puff exceeds 1/8 in. (3 mm).
   
   
5. Load envelopes in the cassette with the print side facing down and the flap towards the left.
   
   
   
   
6. Close the lid and push the cassette all the way into the printer.
   
   
7. Press the <Open> button and pull out the extension completely.
   
   
8. Press the <Feed Switch> button to turn on the Cassette light.
   
   
   
   Note:
   If the Auto Sheet Feeder lamp lights, press the Feed Switch button to light the Cassette lamp.
   If the Cassette lamp does not light even after pressing the Feed Switch button, Paper Source in the printer driver may be set to the setting other than the Feed Switch button.
   

Don't forget to vote if this helps ... Cheers :)

Possible Solution to your issue!

Blinking Attention Light HP LaserJet 1320 Series Printer - The printer displays an orange blinking attention light which will not clear. This usually indicates one of the following issues have occurred. Perform the following in the order provided to troubleshoot and resolve the issue.
1. Insufficient power. Disconnect the power cord from any surge protectors or power strips and plug the unit directly into an electrical wall outlet.
2. There is a paper jam in the printer.
3. The top cover is open. Open the top cover, reseat the print cartridge, and close the top cover, making certain it is shut properly.
4. No paper was loaded in tray 2 or the tray was not loaded properly causing a mispick. Perform the following steps to load tray 2.
A. Pull the tray out of the printer and remove any paper.
B. Move the blue side width guide outward to match the paper size that is being loaded. Locate the blue guide pointer on the left side of the tray. If using a letter-size (8.5 by 11 inch) paper, match the guide point with the LTR/LGL engraving located on the bottom, left-side of the lift plate.
C. Locate the blue tab on the rear paper-length guide. Locate the triangle-shaped pointer in the middle-right on the bottom of the tray. Press on the blue tab and adjust it so that the triangle-shaped pointer matches the paper size that is being loaded. If using letter-size (8.5 by 11 inch) paper, match the triangle-shaped pointer with the LTR engraving on the bottom of the tray.
D. Place the paper in the tray and make sure that it is flat at all four corners. Keep the paper below the height down arrows on the paper-length guide in the rear of the tray.
E. Slide the tray back in the printer.
5. The tray 2 paper level indicator is stuck.
6. If the printer comes back to a Ready state, print a Self-Test/Configuration page. If the printer is not in a Ready state, proceed to step 7.
A. Verify the printer is in a Ready state. (The green LED next to the U-shaped icon is on steady and no other lights are on.)
B. Press down on the green GO button until the orange Attention light comes on (approximately 5 seconds), and then immediately release the GO button. The green GO button will begin to blink and a Self-Test/Configuration page will print.
7. If the attention light is still on, perform a cold reset. A cold reset, sets most, but not all, default variables stored in NVRAM back to the factory default values. It typically does not reset the page count, paper tray sizes, localization language, or formatter number. Complete the following to perform a cold reset.
A. Turn the printer off.
B. Press and hold down the green GO button.
C. Turn the printer on and continue to hold the green GO button for at least 5 seconds, but not longer than 15 seconds. During the process, the Attention LED will turn on.
D. Release the GO button.
NOTE: If both the Attention light and the Ready LEDs turn on before the GO button is released, the cold reset procedure must be started over at step 1.
E. The printer LEDs begin cycling. The cold reset process runs until completion and the printer returns to the Ready state

1. Turn off printer
2. Hold down Resume button and press Power button.
3. Keep holding down Power button and let Resume button go.
4. Press Resume button 2 times then let BOTH buttons go.
5. Green lights will flash and then stop blinking.
6. When green lights are solid, press the Resume button 4 times.
7. Press the Power button and the printer should turn off, if not,
press the Power button once more.
8. Your printer should respond as normal..

A couple suggestions. Unplug the usb cable from the pc to the printer, make sure there is no paper jammed in the machine, unplug the machine from the wall and see if you can move the print head left to right freely. If nothing is obstructing it plig the power cord in with out the usb cord plugged in. See if the machine goes to ready. If all of these fail, that means the main board has been damaged by a power surge, and it would be cheaper to replace the machine than repair it. Good luck!

To fix the NON EXISTANT paper jam:

Status light is on, paper light is on - you can hear the paper feed trying to "grab" the paper, but it can't,  and status light goes Red.

Take out paper tray

Reset the blue paper holders, move them tight against the paper so the paper is snug against all blue barriers. Cause: Somehow the blue paper holders got dislodged and the paper is not snug so the feeder is trying to grab paper that  is slightly out of reach.