Canon's support code 1430 article for the TS3720 and TS3722 is the model: an ink cartridge in the printer cannot be recognized. Remove the ink cartridge and reinstall it. If the error is not resolved, the cartridge may be damaged, so replace it with a new one. If those steps do not solve it, the printer requires servicing, and you can cancel printing with the Stop button. Canon community guidance adds a routine for stubborn cases: with the printer on, remove the cartridge, press the Reset or Stop button, turn the printer off, unplug it for a minute, plug it in and turn it on, then replace the cartridge; inspect the cartridge contacts and the contacts in the slot, make sure any tape has been completely removed and the slots are free of debris, and reinstall and test.
The checks in more detail
Make sure the cartridge is the right model for your printer. On imageCLASS laser models Canon genuine toner cartridges carry chips that let the printer detect the correct type and perform maintenance and image correction, and community reports describe non-Canon cartridge errors; some third-party cartridges are detected but cause quality issues or block maintenance options. Ink tank models such as the MegaTank series use bottles, not cartridges, so the equivalent error is a tank or head issue.
Do not touch the electrical contacts, and keep spares sealed. Keep new cartridges sealed until needed, note the fitting date and model number, and keep the receipt, since proof of purchase helps if a cartridge is faulty. Lay the cartridge on a clean sheet of paper while you inspect it so any ink does not mark surfaces, and photograph the contacts before and after cleaning.
Differential
Likely causes of “Canon printers does not recognize ink or toner”, and how to tell them apart
- 1
A cartridge not seated
What separates it The printer shows support code 1430 because a cartridge is not seated
How to confirm Remove the cartridge and install it again, until it clicks in
- 2
Tape left on
What separates it The cartridge is not recognized because tape is still on it
How to confirm Remove all of the tape from the cartridge, and fit it again
- 3
Dirty contacts
What separates it The recognition is intermittent because the contacts are dirty
How to confirm Inspect the contacts gently, and wipe them with a dry cloth
- 4
A damaged cartridge
What separates it The error persists because the cartridge itself is damaged or faulty
How to confirm Replace the damaged cartridge with a new one
- 5
A non-Canon toner chip
What separates it A non Canon cartridge error shows because the toner chip is not genuine
How to confirm Use a genuine Canon cartridge, and check whether the error clears
Before you touch a setting
Record this first — changing settings destroys the evidence
- The support code that the printer shows
- The model numbers of the cartridges that you fitted
- Whether the cartridges are Canon ones or another make
- What you have already tried to fix the error
Try in this order
0 of 7 completedRead the code
ReversibleRead the code, which is 1430 or another number, and look it up in Canon's list.
Remove and reinstall
ReversibleRemove and reinstall the cartridge, and push it in until it clicks into place, and then test again to see whether it helped.
Check tape and contacts
ReversibleCheck for tape and dirty contacts, and clean them gently with a dry cloth, and then test again to see whether it helped.
Reset and power cycle
ReversibleReset and power cycle the printer, by unplugging it for a minute, and then test again to see whether it helped.
Try a new cartridge
ReversibleTry a new cartridge, if the first one is damaged, to isolate the fault, and then test again to see whether it helped.
Check the model
ReversibleCheck the model number, and make sure that it is the right cartridge, and then test again to see whether it helped.
Contact Canon
ReversibleContact Canon if the error persists, and give them the code and the model, and then test again to see whether it helped.
Model-specific
What is true of this model and not of its siblings
- Tank models
- The MegaTank G6020 and G7020 use bottled ink; the GX models add a maintenance cartridge.
- Laser
- imageCLASS models use toner cartridges with chips.
- Other models this page answers
- These steps also fit models TS9521C, PIXMA TS6420a, G7020, G6020, GX7021, GX4020, Color imageCLASS LBP632Cdw, imageCLASS MF455dw, Color imageCLASS MF656Cdw.
Stop boundary
When this stops being a self-service repair
- !If the error remains after a new cartridge, the printer requires servicing
- !If a laser rejects a third-party toner, use a genuine cartridge
- !If only one slot fails, the slot contacts may be dirty
Evidence ledger
Sources behind this answer
Remove, reinstall or replace.
Reading support codes.
Toner cartridge replacement.
Maintenance cartridge.
The company and its products.
Exact questions
Common questions
What is support code 1430?+
An ink cartridge cannot be recognized.
What is the first fix?+
The first fix is to remove and reinstall the cartridge.
What if it stays?+
If it stays, replace the cartridge, since it may be damaged.
What if that fails?+
If that fails, the printer requires servicing, so contact Canon.
How do I cancel printing?+
Press the Stop button, to cancel a print job on the printer.
Can tape cause it?+
Yes, tape can cause it, so check that you removed all of it.
Do lasers use chips?+
Yes, genuine laser cartridges have chips, which the printer reads.
Can third-party toner cause errors?+
Yes, third party toner can cause errors, on some models.
Do tank models have cartridges?+
No, tank models do not have cartridges, and use ink bottles instead.