Canon iR2425
Our office has been using this machine for three years. IT department picked it out initially, nobody paid much attention. Later the colleague who handled the printer left, and the machine became my responsibility.
After three years, I've figured out its quirks.
Basic Information
The iR2425 is Canon's A3 black-and-white multifunction device, 25 pages per minute. Ours is configured with a duplex document feeder and two paper cassettes. The machine itself weighs about 70-80 kilograms—four people carried it upstairs back then.
Daily use is contract printing, document copying, occasional scanning for archiving. Monthly print volume is around three to four thousand pages.
Paper Cassette Setup
Two paper cassettes at the bottom of the machine—we put A4 in the top one, A3 in the bottom. A3 gets used less, maybe two to three hundred sheets a month.
Key Detail: After loading A4 paper, the green clip at the back of the cassette needs to be pushed all the way in. If it's not pushed in completely, the paper goes crooked halfway through and jams. I had countless paper jams in the first year before I discovered this was the problem.
There's a small slider next to the cassette for adjusting paper size—A4, B5, A3, several positions. Remember to move it to the corresponding position when changing paper, otherwise the machine won't recognize it and the screen will show an error.
Toner Replacement
The original toner model is C-EXV 59. We use domestic compatible toner, more than half the price, print quality looks the same to the naked eye.
Steps for changing toner:
Open the cover panel on the right side of the machine, flip it up.
The toner cartridge is inside toward the bottom, with an orange handle.
Pull the handle up, and the entire toner cartridge can be pulled out.
Before installing the new toner cartridge, shake it left and right five or six times to loosen the powder inside.
Align with the track and push it in all the way, flip the handle back to its original position.
Close the cover panel.
The toner level display on screen isn't very accurate—often shows 10% remaining when it's actually already unable to print. My habit now is to replace it when it shows below 20%, to avoid getting stuck during meetings.
Paper Jam Handling
Paper jams usually happen in just a few spots: paper feed, fuser unit, paper exit.
Open the cassette, pull out the crumpled paper. Be careful to pull in the direction of the paper, don't yank it.
This one's more troublesome. Open the large cover panel at the front of the machine, there's a green handle inside, press it down, and the fuser unit will release. Paper is usually stuck between two rollers, pull it out slowly. The paper at this location is very hot—don't reach in immediately when it's just jammed.
Simplest one, paper is sticking out, just take it off.
The machine screen will show a diagram indicating the jam location, just follow the diagram to find it.
Scan Settings
Scanning to USB drive is the function we use most.
The USB drive plugs into the right side of the machine below the control panel, there's a USB port. After plugging it in, a prompt will pop up on screen.
Resolution
Scan resolution defaults to 200dpi, enough for contracts. For documents with images I'll adjust to 300dpi. Higher than that is unnecessary, files get too large.
File Naming
Scanned PDF file names are date plus sequence number, format like 20231115_001. Files are saved in a folder called CANON in the USB drive root directory.
Once I scanned over twenty pages, pulled out the USB drive and found the file was corrupted and wouldn't open. Later discovered I'd pulled the USB drive before scanning was finished. When there's a small icon spinning in the upper right corner of the screen, it means it's still writing—wait until it stops before pulling out.
Duplex Printing
Driver defaults to single-sided. Duplex printing needs to be manually selected in print settings.
I changed the default to duplex on all the office computers, saves paper. The method is to find "Printing Preferences" in printer properties, change the single/double-sided option to duplex, click apply.
Duplex printing is slower, the machine has to flip the paper and run it through again. For urgent documents I still choose single-sided.
Error Codes
After three years of use, error codes I've seen:
| Code | Meaning | Solution |
|---|---|---|
| E000 | Fuser unit temperature abnormal | Turn off and wait ten minutes before turning on again, usually fixes it. If it keeps appearing, call for repair. |
| E007 | Laser unit problem | I can't fix this one, called after-sales service. |
| E025 | Toner cartridge not installed properly | Pull it out and reinstall. |
The screen also shows some notification codes, the kind without E—generally reminders that consumables need replacing, doesn't affect use.
Daily Maintenance
Every week I wipe the platen glass with a dry cloth. If there's dust on the glass, copies will have black lines.
The paper exit tray area accumulates dust easily, paper scraps fall in there too. I keep a small brush next to the machine, sweep it when I notice.
There are several ventilation openings on the side of the machine, don't pile things blocking them. In summer when air conditioning isn't good, the machine gets hot after continuously printing one to two hundred pages, and the printed paper comes out hot too. I usually stop around a hundred pages, let it rest for five minutes.
About This Machine
The iR2425 isn't any high-end machine—it's considered entry-level multifunction device in Canon's product line. For an office of thirty to forty people like ours, it's sufficient.
Print quality is average, hasn't had any major problems. Occasional paper jams, occasional errors, restart usually solves it.
Canon after-sales response is okay, there's a service center in our city, someone can come the next day after reporting an issue. I haven't specifically asked about out-of-warranty repair costs, still under warranty for now.
If I had to name a drawback, startup is slow—takes over two minutes from pressing power to being able to print. In the morning I usually turn it on early, so colleagues don't have to wait anxiously.
Used until now, haven't needed to replace any parts yet. Gone through a dozen or so toner cartridges, the drum supposedly can print tens of thousands of pages, we haven't reached that volume yet. Will deal with it when it needs replacing.