Question 1

the power light on my pixma mg3620 just blinks and it won't respond to any buttons.

Accepted Answer

DIAGNOSIS The blinking power light on the Canon PIXMA MG3620 indicates that the printer is trapped in a "Fatal Error" state or is failing its internal POST (Power-On Self-Test) sequence. When the light flashes continuously without an accompanying alphanumeric error code on the small LCD screen (like E05 or P104), it typically signifies a hardware initialization failure. This happens when the printer's logic board cannot communicate with the print head or the carriage assembly, or when there is a power surge that has tripped the internal protection circuit. In many cases, this is caused by a "stuck" carriage. If the print head cannot move freely to the home position during startup, the printer will enter this loop to prevent the motor from burning out. You can confirm this by listening closely during the blink sequence; if you hear a rhythmic clicking or a grinding sound followed by the blinking light, the issue is mechanical. If the printer is completely silent and the light just pulses, it is more likely a voltage issue or a corrupted firmware state. FIX To resolve a logic lock or power surge error, you must perform a complete cold reset of the internal capacitors. Follow these exact steps: While the printer is still blinking, press the Power button once to turn it off. Disconnect the AC power cord from the rear of the printer. Unplug the power cord from the wall outlet. If you are using a surge protector or power strip, remove it entirely and prepare to plug directly into a wall socket. Open the front cover (the access door for the ink cartridges). Manually check if the carriage can slide from left to right. If it is stuck, gently nudge it toward the center. Ensure there are no torn pieces of paper or jammed labels in the tracks. Close the cover securely. Wait exactly 120 seconds. This allows the volatile memory (RAM) on the mainboard to clear. Plug the power cord directly into a known-working wall outlet. Avoid using extension cords, as the MG3620 is sensitive to voltage drops. Press the Power button once. Do not hold it down; a single firm press is required. IF THAT DIDN'T WORK Reseat the Ink Cartridges: Open the cover and remove both the PG-245 and CL-246 cartridges. Inspect the gold contact points on the back of the cartridges for ink smears or debris. Clean them with a lint-free cloth and a drop of isopropyl alcohol. Reinsert them firmly until they click into place. A poorly seated cartridge can trigger a fatal boot error. Perform a Hard Reset via the Buttons: With the printer off, hold the Stop/Reset button (the red circle triangle) for 5 seconds, then release it and immediately press the Power button. This can sometimes force the printer to bypass a non-critical initialization error. Check for Paper Jam Sensor Trigger: Use a flashlight to look at the far right side of the printer where the carriage parks. If a tiny scrap of paper is blocking the optical sensor, the printer will blink and refuse to respond to buttons. Use a pair of tweezers to remove any debris from the encoder strip (the clear plastic strip running across the width of the printer). Test with a Different Power Cable: If you have another Canon printer with the same 2-prong power lead, swap them. A partial break in the internal wiring of the power cord can provide enough voltage to light the LED, but not enough to initialize the carriage motors. HEADS UP Avoid using "Generic" or "Compatible" ink cartridges that have modified chips, as these can occasionally cause communication errors that lock the printer's firmware. Never use a can of compressed air directly into the carriage tracks; this can push dust into the optical encoder strip, causing the carriage to slam into the side and trigger a fatal error. Always turn the printer off using the Power button before unplugging it from the wall to prevent corruption of the internal NVRAM. If the blinking persists after all these steps, the internal logic board has likely suffered a capacitor failure and the unit will need to be replaced, as the MG3620 mainboards are not modularly repairable.

Question 2

my computer and phone can't find the canon printer on the network anymore. it was working yesterday.

Accepted Answer

DIAGNOSIS The Canon PIXMA MG3620 has likely experienced a "DHCP Lease Expiry" or an IP address conflict. Because this model lacks a built-in LCD screen for network configuration, it relies on a handshake with your router. If your router rebooted or assigned the printer's previous IP address to another device (like a new tablet or smart bulb), the printer becomes "invisible" to your computer and phone despite appearing to be powered on. This often happens because the MG3620 is typically configured with a Dynamic IP. When the lease expires, the router may assign a new address that the Canon drivers on your PC cannot track. You can confirm this by looking at the Wi-Fi lamp on the printer panel; if it is flashing or completely off, the printer has lost its handshake with the wireless access point. If the light is solid but devices can't find it, the printer is on the network, but the communication port (UDP/TCP) is blocked or the IP has shifted. FIX To restore the connection, you must force the printer to request a new handshake and then refresh the driver's target address. Power cycle the hardware: Turn off the printer, unplug the power cable from the wall, and restart your wireless router. Wait 60 seconds before plugging the printer back in. Initiate Wireless Setup: Press and hold the Wi-Fi button on the printer panel until the Power lamp flashes. Release the button. The Wi-Fi lamp should now be flashing quickly, indicating it is in "Cableless Setup" mode. On your Windows PC or Mac, open the Canon IJ Network Device Setup Utility (this is installed alongside the MG3620 driver package). If you don't see it, search for "Canon" in your Start menu. Select "Search for Printers" and choose the MG3600 series from the list. The utility will push the current SSID and WPA2 password from your computer to the printer. Once the Wi-Fi lamp on the printer stops flashing and remains solid green, the connection is restored. On your mobile device (iOS or Android), open the Canon PRINT Inkjet/SELPHY app. Tap the "Add Printer" icon and allow the app to scan the local network to re-link the device. IF THAT DIDN'T WORK Perform a Network Reset: If the printer is stuck in a loop, press and hold the Stop/Reset button until the Power lamp flashes 21 times. This clears the internal network cache and removes any "ghost" IP assignments that might be blocking a new connection. Check Frequency Band: The MG3620 only supports 2.4GHz Wi-Fi. If you recently upgraded to a Dual-Band router (5GHz/2.4GHz), ensure "Smart Connect" or "Band Steering" is disabled in your router settings, or create a separate 2.4GHz SSID. The printer cannot "see" 5GHz networks. Disable Firewall Blocking: On Windows, go to Control Panel > System and Security > Windows Defender Firewall. Select "Allow an app or feature through Windows Defender Firewall" and ensure that "Canon IJ Network Tool" and "Canon Printer" have both Private and Public checkboxes checked. Assign a Static IP: Access your router's admin page (usually 192.168.1.1 or 192.168.0.1). Find the printer in the "Connected Devices" list and select "Reserve IP" or "Static IP." This prevents the printer from changing addresses in the future. HEADS UP Avoid placing the printer directly next to the router; keeping a distance of 3-5 feet prevents signal saturation (interference) that can cause the connection to drop. If you change your Wi-Fi password, you must repeat the "Cableless Setup" process entirely, as the MG3620 cannot update passwords automatically. Keep the printer's firmware updated via the Canon IJ Network Tool to resolve known bugs regarding sleep-mode disconnection. If the Wi-Fi lamp flashes orange, it indicates a "Communication Error"—this usually means the password entered during setup was incorrect.

Question 3

the scanner part of my all-in-one won't work. it makes a noise but doesn't move or scan.

Accepted Answer

DIAGNOSIS The "humming" or grinding noise you hear is the scanner motor attempting to engage the carriage, but the carriage is physically unable to slide across the scan bed. In the Canon PIXMA MG3620, this is typically caused by a "carriage jam" where the scan head has slipped off its rail or a piece of debris (like a staple or a fragment of plastic) has lodged in the drive mechanism. Because the motor continues to push against a locked carriage, you hear a repetitive mechanical buzzing sound. Alternatively, this can be caused by a failure in the white plastic drive gear or a perished rubber drive belt. If the gear has stripped or the belt has snapped, the motor will spin freely or struggle to grip, resulting in a noise without any corresponding movement of the scan head. You can confirm this by attempting to initiate a scan; if the light bar doesn't illuminate or move even a millimeter, the issue is purely mechanical rather than a software driver failure. FIX To resolve a mechanical jam in the MG3620 scanner unit, follow these precise steps: Power down the printer completely and unplug the AC power cord from the wall outlet to prevent electrical shock or accidental motor engagement. Lift the scanner lid. Carefully inspect the glass surface for any cracks or protrusions that might be hindering the carriage. Using a flashlight, look at the right-hand side of the scanner assembly. You will see the scan head (the bar with the light) and a white plastic guide rail. Gently place your finger on the scan head and apply a very slight amount of pressure to push it toward the center of the glass. If it is jammed, you may feel a "click" as it pops back onto the rail. Check the drive gear on the far right. If you see a small piece of plastic or a foreign object wedged in the gear teeth, use a pair of fine-tipped tweezers to remove it. Slowly slide the carriage manually from the far right to the far left. It should glide smoothly without any resistance. If it catches in one specific spot, inspect the rail for bends or debris. Plug the printer back in and perform a "Power Cycle" by holding the power button for 5 seconds, then restarting. Attempt a test scan to see if the carriage now homes correctly. IF THAT DIDN'T WORK Reset the Scanner Hardware: Perform a hard reset by unplugging the power cord and the USB cable. Hold the power button down for 30 seconds to drain the internal capacitors. Plug only the power back in and attempt to scan. This can sometimes clear a "stuck" logic state in the scanner's home position sensor. Check the Ribbon Cable: If the carriage moves but the computer says "Scanner not found," the flatbed ribbon cable (the wide, white flexible strip) may have a hairline tear. Open the outer casing and inspect the cable for creases or pinches. If the cable is frayed, the unit requires a replacement ribbon cable part, as these cannot be soldered. Update the Scan Driver: In some cases, a corrupted MP Drivers package can send conflicting signals to the motor. Uninstall the current Canon MG3600 series driver from your Control Panel, restart your PC, and install the latest "MP Drivers" package specifically for the MG3620. Check for "Lock" Switches: While rare on this specific model, ensure no shipping tape or plastic orange spacers were left inside the scanner bed from the original packaging, as these can block the carriage path. HEADS UP Never force the scan carriage with excessive pressure; the plastic rails are fragile and can snap, which renders the entire scanner assembly unrepairable. Avoid using canned air directly into the gear mechanism, as this can push dust and debris deeper into the motor housing. Keep the scanner glass clean using a microfiber cloth and a small amount of isopropyl alcohol; fingerprints or grime on the glass can occasionally cause the auto-calibration sensor to fail, triggering a stop in movement. Always unplug the unit before touching the internal components to avoid shorting the logic board.

Question 4

all my prints from the canon mg3620 have streaks or missing lines of color.

Accepted Answer

DIAGNOSIS The streaks, horizontal bands, or missing lines of color on your Canon PIXMA MG3620 are caused by partial or complete blockages in the microscopic nozzles of the printhead. This occurs when ink dries and hardens within the nozzles, creating a physical barrier that prevents ink from flowing evenly onto the paper. This is particularly common in the MG3620 because it uses integrated cartridges (PG-240 and CL-241/246), where the printhead is built directly into the bottom of the ink tank. You can confirm this by printing a "Nozzle Check" pattern. If the grid lines are broken or certain colors (like Cyan or Magenta) are entirely absent, the issue is definitely a clog. If the streaks appear as vertical lines across the entire page regardless of the image, it may be a misalignment or a dirty encoder strip, but horizontal gaps almost always point to dried ink in the nozzles. FIX To resolve this, you must force the printer to purge the dried ink using the internal maintenance software. Follow these exact steps: Load a stack of plain A4 or Letter-sized paper into the rear tray. On your Windows PC, open the Control Panel, go to Devices and Printers, right-click the Canon MG3600 series icon, and select Printing Preferences. Navigate to the Maintenance tab. Click on Cleaning. Run this cycle first. Once complete, print a Nozzle Check pattern to see if the lines are solid. If streaks remain, return to the Maintenance tab and select Deep Cleaning. This uses a higher-pressure burst of ink to clear stubborn clogs. Note that this consumes a significant amount of ink from the PG-240 and CL-241 cartridges. After the Deep Cleaning cycle finishes, wait 10 minutes to allow any loosened ink to settle before printing another Nozzle Check pattern. If the colors are still missing, repeat the Deep Cleaning process one more time. If there is no improvement after two Deep Cleanings, the ink has likely solidified too much for the software to fix. IF THAT DIDN'T WORK Manual Printhead Soak: Remove the ink cartridges from the printer. Fold a paper towel and dampen it with warm, distilled water or a 50/50 mix of isopropyl alcohol and water. Press the bottom nozzle plate of the cartridge firmly onto the damp towel and hold it for 30 seconds. You should see a clear "stamp" of ink appearing on the towel. This manually dissolves the dried ink crust. Cartridge Replacement: Because the printhead is built into the cartridge on the MG3620, a failed printhead means the cartridge itself is defective. Replace the CL-241 (Color) or PG-240 (Black) cartridge with a fresh, genuine Canon OEM cartridge. This is the fastest way to resolve the issue if the soak method fails. Encoder Strip Cleaning: If the streaks are vertical or the printer is "stuttering" as it prints, the clear plastic strip (encoder strip) running across the width of the printer may have a smudge of grease or ink. Gently wipe this strip with a dry, lint-free microfiber cloth. Do not use alcohol on this strip as it can erase the timing marks. Print Head Alignment: Go back to the Maintenance tab in the printer preferences and select Print Head Alignment. This ensures the nozzles are firing at the correct angle, which can sometimes look like "streaking" if the alignment is off by even a fraction of a millimeter. HEADS UP Avoid Long Idle Periods: To prevent future clogs, print at least one color page per week. This keeps the ink from drying in the nozzles. Use Genuine Ink: Third-party "compatible" inks often have different viscosities and are more prone to clogging the MG3620's fine nozzles. Power Down Correctly: Always use the power button on the machine rather than a power strip. This allows the printer to "park" the cartridges, sealing the nozzles to prevent air from drying out the ink. Avoid Over-Cleaning: Do not run more than three Deep Cleaning cycles in a 24-hour period. Doing so can overheat the printhead and waste an entire cartridge of ink without further improving the result.

Question 5

i replaced the ink cartridges but my mg3620 still says it's out of ink and won't print.

Accepted Answer

DIAGNOSIS The Canon PIXMA MG3620 utilizes a "chip-based" ink monitoring system. When you install new PG-245 (Black) or CL-246 (Color) cartridges, the printer reads a small electronic chip on the cartridge to determine the ink level. If the printer continues to report that ink is empty, it is usually because the printer is still referencing the "memory" of the previous depleted cartridge, or there is a physical communication failure between the gold contact pads on the cartridge and the spring-loaded pins inside the print head carriage. This issue is common when using "XL" high-capacity cartridges or third-party remanufactured tanks, as the printer's firmware may not automatically trigger the reset sequence. You can confirm this is a recognition error if the "Alarm" lamp (orange triangle) is flashing on the printer panel, specifically indicating Error Code 1688 (Ink cannot be recognized) or 1401 (Ink has run out), preventing any print jobs from initiating despite the physical presence of full ink tanks. FIX To force the MG3620 to override the ink level monitor and recognize the new hardware, follow this precise sequence: Power on the printer and ensure the power light is solid green. Open the front cover to allow the cartridge holder to slide into the replacement position. Locate the Stop/Reset button (the red circle with a triangle inside). Press and hold this button down for exactly 5 to 10 seconds. You will notice the printer making mechanical noises as it re-initializes the carriage. While the printer is still powered on, remove the PG-245 and CL-246 cartridges. Inspect the gold contact chips on the back of the cartridges. Use a lint-free cloth dampened with a tiny amount of isopropyl alcohol to gently wipe the gold pads to remove oils or ink residue. Re-insert the cartridges. Push them upward and inward firmly until you hear a distinct "click" and the cartridge locks into place. If they are not seated fully, the pins will not touch the chip. Close the front cover and wait for the printer to perform its initialization cycle. The "Ink Low" warning should now disappear, or the printer will allow you to bypass the warning and proceed to print. IF THAT DIDN'T WORK Hard Power Cycle: Turn the printer off and unplug the power cord from the wall outlet. Hold the power button down for 30 seconds to discharge any remaining electricity from the capacitors. Leave the printer unplugged for at least 10 minutes before plugging it back in and restarting. This clears the volatile memory cache that may be clinging to the "Empty" status. Cartridge Swap Test: If you have another set of cartridges, swap them in. If the printer recognizes the second set but not the first, the chip on the new cartridge is defective (a "dead chip"), and you must request a replacement from the vendor. Clean the Carriage Pins: Use a flashlight to look inside the print head carriage where the cartridges sit. Check for bent or recessed gold pins. If a pin is bent, use a thin needle to very gently nudge it back into alignment so it can make a flush connection with the cartridge chip. Driver Reset: On your computer, go to the printer properties and remove the MG3620 from your device list. Restart the computer and re-add the printer. Occasionally, the "Ink Low" flag is cached in the Windows or macOS print spooler and needs a fresh handshake with the hardware. HEADS UP Avoid Generic Refills: Using non-Canon chips often triggers the "Ink cannot be recognized" error. If using third-party ink, you must hold the Stop/Reset button for 10 seconds every time you replace a tank to bypass the ink level monitor. Prevent Clogging: The MG3620 print heads are integrated into the cartridges. If you leave the printer unused for more than two weeks, the ink in the nozzles will dry, causing streaks even if the printer says the ink is full. Print one test page weekly. Avoid Over-Cleaning: Do not run the "Deep Cleaning" cycle more than twice in a row. This process consumes a massive amount of ink and can actually cause air bubbles to form in the print head, worsening the print quality.

Question 6

my printer is making a loud grinding or crunching noise when it tries to print.

Accepted Answer

DIAGNOSIS The loud grinding or crunching noise in a Canon PIXMA MG3620 is almost always caused by a mechanical obstruction in the carriage path or a failure in the timing belt system. When the carriage motor attempts to move the printhead assembly across the platen, it encounters resistance. Because the motor is geared to move at a specific speed, it continues to spin against the obstruction, causing the plastic gears to slip or the rubber belt to skip teeth, which creates that characteristic "crunching" sound. This typically happens due to a "micro-jam"—a small piece of torn A4 or letter paper that has ripped off during a previous jam and is now lodged in the far right "parking" station or the far left limit switch. Alternatively, foreign objects like paper clips, staples, or accumulated dust clumps can fall into the track. You can confirm this by attempting to move the carriage manually while the power is off; if you feel a hard stop or a "catch" before the carriage reaches the end of the rail, there is a physical blockage. FIX Follow these precise steps to clear the obstruction and reset the carriage mechanism: Power down the printer immediately and unplug the power cord from the wall outlet to prevent the motor from engaging while your fingers are inside. Lift the scanner unit (the top lid) and open the risk-access cover to expose the printhead carriage. Check the far right side of the printer (the home/parking position). Use a flashlight to look for small scraps of paper or debris lodged in the cleaning station wipers. Gently grasp the printhead carriage. If it is locked in the home position, apply light pressure to move it toward the center. If it resists, do not force it; use a pair of tweezers to remove any visible debris from the track first. Once the carriage is centered, slide it slowly to the far left and then back to the far right. It should glide smoothly without any clicking or jumping. Inspect the clear plastic encoder strip—the thin, translucent ribbon that runs horizontally across the width of the printer behind the carriage. If there is a smudge of ink or grease on this strip, the printer may "hunt" for its position and crash into the side, causing the grinding noise. Gently wipe it with a dry, lint-free microfiber cloth. Close all covers and plug the unit back in. Perform a power cycle by holding the power button for 5 seconds. IF THAT DIDN'T WORK Check the Paper Feed Tray: Sometimes the grinding isn't the carriage, but the paper pick-up rollers struggling with a jammed sheet. Open the rear tray and use a can of compressed air to blow out any debris from the feed mechanism. Ensure the paper guides are snug but not overly tight against the stack. Inspect the Carriage Belt: Look at the black rubber timing belt connecting the motor to the carriage. If you see frayed edges or a gap where the belt has slipped off the pulley, the motor will spin uselessly and grind. If the belt is snapped, the carriage assembly must be replaced. Clear the Rear Access Door: Open the back of the printer to ensure no paper is jammed in the output rollers. A piece of paper stuck in the rear duplexing area can put tension on the entire chassis, preventing the carriage from moving freely. Reset the Encoder Strip: If the noise persists, the encoder strip may be displaced. Ensure the strip is tensioned correctly and not sagging. If it is loose, the carriage will move erratically and hit the side walls. HEADS UP Never use oil or WD-40 on the carriage rails; the MG3620 uses a dry-glide system, and lubricants will attract dust, creating a sludge that will eventually seize the motor. Always turn the printer off before manually moving the carriage to avoid damaging the stepper motor or triggering a "Carriage Error" code. Avoid using overly thick cardstock (above 200g) in the rear tray, as this often leads to the "micro-jams" that cause these grinding issues. If you see a "5100" error code on the screen, this is the specific system code for the carriage being unable to move; it confirms a mechanical blockage.

Question 7

the wireless setup on my pixma mg3620 keeps failing. it won't connect to my wifi no matter what i try.

Accepted Answer

DIAGNOSIS The Canon PIXMA MG3620 often suffers from "handshake" failures during wireless setup, where the printer and router fail to exchange security credentials within the allotted timeout window. This is frequently caused by the printer's inability to communicate with 5GHz bands; the MG3620 is a legacy 2.4GHz-only device. If your router uses a "Smart Connect" feature that merges 2.4GHz and 5GHz into one SSID, the printer will often fail to authenticate because it cannot process the dual-band signal. Furthermore, this model is prone to "stale" network profiles. If the printer was previously connected to a different router or if the network password was changed, the internal wireless chip may hold onto the old configuration, preventing a new connection from establishing. You can confirm a failure if the Wi-Fi lamp flashes rapidly and then turns off, or if the printer prints a Network Configuration page showing "Disconnected" or "Invalid IP Address" under the IPv4 section. FIX To resolve this, you must perform a hard reset of the network settings and use the manual WPS (Wi-Fi Protected Setup) method to force a clean handshake. Clear the printer's network memory. Press and hold the Stop/Reset button until the Alarm lamp flashes 15 times, then release it immediately. This clears any old SSID profiles. Ensure your router's WPS feature is enabled in the admin panel. If your router is a combined gateway (modem/router), locate the physical WPS button (sometimes labeled as "Connect" or "Wi-Fi"). On the MG3620, press and hold the Wi-Fi button for approximately 5 seconds until the Wi-Fi lamp begins to flash quickly. Within 120 seconds, press and hold the WPS button on your router for 3 to 5 seconds. Wait for the Wi-Fi lamp on the printer to stop flashing. Once it remains solid blue/green, the connection is established. On your computer, go to Control Panel > Devices and Printers. If the printer is listed as "Offline," right-click it, select Remove Device, and then click Add a Printer to refresh the IP address assignment. IF THAT DIDN'T WORK Split your Router Bands: Log into your router settings (usually 192.168.1.1 or 192.168.0.1) and disable "Smart Connect." Create two separate SSIDs: one for 2.4GHz (e.g., "HomeNet_2.4") and one for 5GHz. Connect the MG3620 specifically to the 2.4GHz band. USB-to-Wireless Bridge: Connect the printer to your PC via a standard USB-A to USB-B printer cable. Run the Canon setup utility and select "Wireless LAN Connection." The software will push the Wi-Fi password directly from the PC to the printer's hardware, bypassing the WPS handshake entirely. Once the Wi-Fi light stays solid, unplug the USB cable. Assign a Static IP: If the printer connects but drops frequently, access the printer's web interface by typing its IP address into a browser. Navigate to Network Settings > TCP/IP and change "DHCP" to "Manual." Assign an IP address outside your router's common DHCP range (e.g., 192.168.1.200) to prevent IP conflicts. Check Security Protocols: Ensure your router is using WPA2-PSK (AES) security. The MG3620 may struggle with the newer WPA3 standard. If your router is set to "WPA3 Only," change it to "WPA2/WPA3 Mixed Mode." HEADS UP Avoid placing the printer more than 10 feet away from the router during the initial setup process to prevent signal interference. Disable any active VPNs on your computer during the setup phase, as VPNs mask the local network and prevent the PC from "seeing" the printer on the subnet. If you change your router or ISP, you must repeat the "Stop/Reset" 15-flash sequence to wipe the old credentials before attempting a new connection. Keep the printer firmware updated via the Canon utility to ensure compatibility with newer router security patches.

Question 8

my canon mg3620 just shows a solid orange light and won't print or copy anything, what's wrong?

Accepted Answer

DIAGNOSIS The solid orange Alarm light on the Canon PIXMA MG3620 indicates a general hardware error state that has halted all print and copy operations. Unlike a flashing light, which usually signifies a simple "out of paper" or "ink low" warning, a solid light typically means the printer's internal logic has detected a critical failure that prevents the carriage from moving or the sensors from verifying a "ready" state. This is most commonly caused by a physical obstruction in the paper path, a misaligned ink cartridge preventing the carriage from locking into place, or a failure in the encoder strip (the clear plastic ribbon that tells the printer where the printhead is located). To confirm the exact cause, look at the computer screen connected to the printer. The Canon Status Monitor will typically display a specific error code, such as "Error 1300" (Paper Jam) or "Error 1688" (Ink Cartridge cannot be recognized). If the printer is standalone, a solid orange light without a flashing pattern often points to a "carriage jam," where the printhead is physically blocked from returning to its home position on the far right side of the chassis. FIX Follow these precise steps to clear the hardware lock and reset the printer's internal sensors: Power down the printer using the Power button and physically unplug the AC power cord from the wall outlet. This clears the volatile memory and resets the carriage motor. Open the scanning unit (the top lid) and the paper output tray. Gently pull all paper out of the rear input tray. Inspect the interior for any small scraps of paper, staples, or debris. Use a flashlight to look specifically at the far right and left ends of the carriage rail. If you find a scrap, use tweezers to remove it; do not use your fingers if the paper is wedged deep in the rollers. Check the ink cartridges (PG-245 and CL-246). Gently press down on the top of each cartridge to ensure they "click" firmly into place. If a cartridge is slightly protruding, the carriage sensor will trigger a solid orange alarm. Locate the encoder strip—the thin, transparent plastic strip running horizontally across the width of the printer. If there is a smudge of ink or grease on this strip, the printer cannot track the printhead position. Carefully wipe it with a dry, lint-free cloth or a cotton swab dampened with a tiny amount of isopropyl alcohol. Do not apply pressure, as displacing the strip will cause a permanent alignment error. Close all covers and plug the power cord back in. Turn the printer on and wait 30 seconds for the initialization cycle to complete. IF THAT DIDN'T WORK Perform a Hard Reset: With the printer on, unplug the power cord from the back of the machine. Hold the Power button down for 15 seconds to drain any remaining electricity from the capacitors. Plug the power back in and restart. This often clears "phantom" paper jam errors. Check for "Ink Absorber Full" Error: If the orange light is accompanied by a specific sequence of flashes (usually 7 flashes), the waste ink pads are saturated. While this usually requires a service tool, you can temporarily bypass it by holding the Stop/Reset button for 5 seconds, then 5 more seconds, then 5 more seconds to enter the service mode and reset the counter. Inspect the Rear Feed Slot: Check for a foreign object (like a coin or a paperclip) that may have fallen into the rear tray. Even a tiny object can trigger the paper sensor, causing a solid alarm light even when no paper is present. Update the Firmware: Connect the printer via USB to a PC. Run the Canon MG3600 series driver update. Sometimes a firmware glitch causes the printer to misread sensor data, leading to a false error state. HEADS UP Never use canned air (compressed air) inside the printer; it can push debris further into the gears or blow ink droplets onto the encoder strip, causing the orange light to return. Avoid using "non-genuine" third-party cartridges that do not have the correct chip height, as these often fail to seat properly in the MG3620 carriage, triggering a hardware alarm. If you are cleaning the encoder strip, avoid using soap or window cleaner, as the chemicals can strip the timing marks off the plastic, rendering the printer unusable. Always turn the printer off via the power button before unplugging it to prevent corruption of the internal flash memory.

Canon PIXMA MG3620 Wireless All-in-One Printer

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