Our take
Canon's U.S. support page identifies the imageCLASS MF4690 as a monochrome laser multifunction device rated up to 21 pages per minute on Letter paper. It supports print, copy, scan, and fax, with a 35-sheet automatic document feeder and USB 2.0 Hi-Speed connection. Canon's page mentions two-sided fax output, which is not proof of automatic duplex printing. The reviewed source does not establish an Ethernet port, built-in wireless, or a recommended monthly volume. Canon lists a 7,500-page maximum duty cycle; keep that separate from ordinary workload guidance.
A direct-attached monochrome fax station where multifunction features matter and network printing or automatic duplex is not assumed..
Avoid it if built-in network access, confirmed automatic duplex printing, color output, or a numeric recommended monthly range is necessary.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The exact MF4690 source documents four core functions including fax.
- A 35-sheet ADF supports feeding multipage originals for scan, copy, and fax tasks.
- Canon rates monochrome Letter output at up to 21 pages per minute.
What to weigh up
- Canon documents USB 2.0 but the reviewed page does not establish Ethernet or Wi-Fi.
- Automatic duplex printing is not confirmed; duplex fax output is a separate function.
- The maximum duty cycle is not a recommended monthly target.
The key details
| Model covered | MF4690 (1827B001) |
|---|---|
| Main functions | Print, copy, scan, and fax |
| Print output | Monochrome laser; up to 21 ppm Letter |
| Two-sided printing | 35-sheet ADF; automatic print duplex not confirmed |
Performance figures are manufacturer claims. Source checked October 11, 2026. Regional models and included accessories can differ.
What the features mean for you
A multifunction station, not a print-only model
Canon documents the MF4690 for printing, copying, scanning, and fax. That combination can consolidate basic paper workflows at a desk or small office where separate devices would be inconvenient. The 35-sheet ADF is useful for feeding multiple originals without placing each page on the glass. This review does not infer speed or image quality for scanning from the print rating. Confirm that the office still has a compatible connection and software path for this legacy model before assigning it to a shared workflow.
Use the Letter speed as a rated reference
Canon lists up to 21 pages per minute for monochrome Letter printing. It is a manufacturer rating rather than a result measured on a current unit; page coverage, warm-up, and condition can change output. That pace can help compare the MF4690 with other documented models, but it does not establish a recommended monthly volume. If the device will handle a larger routine, seek additional Canon workload guidance rather than substituting the maximum duty-cycle figure. A current print sample is the practical unit-level check.
Do not confuse fax output with print duplex
Canon's specification refers to two-sided fax output, but the reviewed page does not confirm automatic two-sided printing. Those are different workflows: duplex fax output says nothing by itself about whether the print engine turns a sheet during ordinary print jobs. Keep the print-duplex attribute unknown. If automatic duplex is essential, verify it against a complete model-specific Canon manual or choose an exact model with that feature clearly stated. A used unit's capabilities should be demonstrated rather than inferred from an ambiguous two-sided description.
Plan for USB rather than assumed network sharing
Canon documents a USB 2.0 Hi-Speed interface for the MF4690. The reviewed exact-model page does not establish built-in Ethernet or Wi-Fi, so do not treat a title calling it network-ready as proof of either interface. Direct USB can work for one nearby computer. A shared office may need a host-based print-sharing arrangement, and current operating systems or drivers must be checked in advance. Ask for the back-panel ports and a connection demonstration if a listing is being considered.
Separate duty cycle from recommended use
Canon publishes a maximum monthly duty cycle of 7,500 pages, but the reviewed support page does not provide a recommended monthly range. The maximum should not be used as a normal target or converted into an estimated minimum. Preserve both recommended endpoints as unknown. The 21 ppm rating and ADF capacity describe different parts of the device and cannot replace that guidance. Estimate the office's typical output, then seek model-specific service information if workload is a deciding factor. This distinction prevents a ceiling from being mistaken for advice.
Check the individual device and legacy support
Canon's support page records the model's original configuration, not the state of a current marketplace unit. Ask about page count, toner, maintenance history, feeder operation, and return terms. A short test can check printing, scanning, copying, fax dialing, and USB recognition, but this review makes no claim to have performed those tests. Verify that current computers support the necessary driver and that fax service is still available in the office. Older multifunction devices can be useful when the workflow fits, but their condition and software path deserve separate confirmation.
What else to compare
The Canon LBP253dw offers confirmed automatic duplex and Wi-Fi for print-only use; the MF4690 adds copy, scan, and fax but has an uncertain print-duplex profile.
Before you buy
Can the MF4690 send and receive faxes?
Yes. Canon's MF4690 product page lists fax along with print, copy, and scan functions.
Does it automatically print on both sides?
The reviewed Canon page does not establish automatic print duplex; two-sided fax output is not the same feature.
Which computer connection is documented?
Canon lists USB 2.0 Hi-Speed; built-in Ethernet or wireless networking is not established by the reviewed source.
What is its recommended monthly volume?
Canon gives a 7,500-page maximum duty cycle, but the reviewed page does not state a recommended range.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Canon U.S. imageCLASS MF4690 support and specifications ↗ — checked October 11, 2026.
- Canon U.S. MF4690 functions, Letter speed, ADF, interface, and duty cycle ↗ — checked October 11, 2026.
The decision
Choose the MF4690 for its documented mono fax and ADF workflow when USB attachment is acceptable; leave duplex and monthly recommendation unassumed.
Is it the right fit?
Check the exact model and today’s offers on Amazon.