Professional service Canon

Canon Error 7700

What the code means · Diagnosis at a glance

Canon support code 7700 is a repair error. The Canon online manuals for the TR160, TR4600 and G2020 series all give the same cause, "An error requiring a repair has occurred", and the same action: turn off the printer, unplug it and contact your nearest Canon service center to request a repair. Each manual adds one model-specific warning. On the TR4600 series, unplugging the power cord deletes all faxes stored in the printer's memory. On the TR160 series, if you are using a battery, turn the printer off and detach the battery. On the G2020 series, do not tilt the printer when moving it, because ink may leak out.

Disconnect power firstCanon's action for 7700 starts with turning the printer off and unplugging it.
May need a technician7700 is an error requiring a repair. Canon directs you to its service center, not to a home fix.
Ink can stainG2020 series: do not tilt the printer when moving it, because ink may leak out.
Model-specificTR4600 series: unplugging deletes all faxes stored in memory. TR160 series: detach the battery after turning the printer off.

Affected brands & models

Canon TR4600 series (fax-capable)Canon TR160 series (battery use)Canon G2020 series

Diagnosis at a glance

Likely causes ranked, with severity and the recommended action.

An error requiring a repair has occurred (Canon's stated cause) Service Likelihood: The only cause Canon listsAction: Turn off, unplug and contact a Canon service center

What the code means

Support code 7700 is the number Canon's online manuals use for "An error requiring a repair has occurred." It appears in the List of Support Codes for Printer Errors for the TR160, TR4600 and G2020 series, and the wording of the cause is identical on all three pages.

Canon does not give the owner anything to try at home for this code. The "What to Do" section has two actions: turn off the printer and unplug it, then contact your nearest Canon service center to request a repair. The manual pages do not name a specific part or explain what triggered the error, so any guess about the failed component would not come from Canon.

The extra notes differ by series, and they matter before you unplug or move the printer. TR4600 series: unplugging the power cord deletes all faxes stored in the printer's memory. TR160 series: if the printer runs on a battery, turn it off and detach the battery. G2020 series: do not tilt the printer when moving it, because ink may leak out, and read the Repairing Your Printer section before transporting it for repair.

Most frequent causes

  • Canon's manuals state one cause for support code 7700: an error requiring a repair has occurred.
  • The manual pages for the TR160, TR4600 and G2020 series do not identify which part or condition triggered it.

Quick fix: try this first

  1. Turn the printer off.
  2. Unplug the power cord. On a TR4600 series printer this deletes all faxes stored in memory.
  3. On a TR160 series printer running on a battery, detach the battery after turning it off.
  4. Contact your nearest Canon service center and request a repair.

Step-by-step solution

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Before you start

  • TR4600 series: unplugging the power cord deletes all faxes stored in the printer's memory.
  • Look up support code 7700 in the online manual for your exact series, because each series page carries its own notes.

What not to do

  • ×Do not tilt a G2020 series printer when moving it; Canon warns that ink may leak out.
  • ×Do not leave the battery attached on a TR160 series printer showing 7700; Canon says to turn it off and detach the battery.

When to stop & call support

Stop once the printer is off and unplugged (and, on the TR160 series, the battery is detached). Canon classes 7700 as an error requiring a repair, and its manual pages give no further user step: the next move is a repair request to your nearest Canon service center.

If the error comes back

Canon's manual pages for 7700 do not describe a reset or any user procedure that clears the code. If 7700 shows again, the instruction stays the same: turn the printer off, unplug it and contact a Canon service center to request a repair.

Questions about Canon 7700

What does Canon support code 7700 mean?

Canon's online manuals describe support code 7700 as "An error requiring a repair has occurred." The TR160, TR4600 and G2020 series pages all use the same wording.

Is there a fix for Canon support code 7700?

Canon does not publish a user fix for this code. Its instruction is to turn off the printer, unplug it and contact your nearest Canon service center to request a repair.

Is support code 7700 the same on a Canon TS6420a or TR4720?

The Canon manual pages cited here cover the TR160, TR4600 and G2020 series. Canon publishes a List of Support Codes for Printer Errors for each series in its online manual, so check the 7700 entry for your own model there before assuming the same notes apply.

Will unplugging my Canon printer for error 7700 delete my faxes?

On the TR4600 series, yes. Canon warns that unplugging the power cord deletes all faxes stored in the printer's memory.

How should I move a Canon G2020 with support code 7700 for repair?

Keep it level. Canon says not to tilt the printer when moving it, because ink may leak out, and points you to the Repairing Your Printer section of the manual before transporting it.

What is a Canon PIXMA support code?

It is the number Canon's online manuals use to identify a printer error. Each series has a List of Support Codes for Printer Errors, and each code page gives a Cause and a What to Do section, as the 7700 pages do.

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