Canon PIXMA TR7120 Wireless Multi-Function Home Printer vs Canon Color imageCLASS LBP646Cdw Color Laser Printer
Do you need copy/scan and ADF document intake, or is a color print-only laser setup enough—and which paper-loading layout fits your routine?
Products compared

ASIN B0FMB4JBJ8
Canon PIXMA TR7120 Wireless Multi-Function Home Printer
You need to copy or scan originals on the printer, including multi-page sets loaded into an ADF.
Last observed offer
$172.00
- Confirm offer eligibility on Amazon
Size: Medium
Price checked
Observed condition: new. Coupon and subscription requirements unverified.

ASIN B0FMBVCX6S
Canon Color imageCLASS LBP646Cdw Color Laser Printer
You only need printing and prefer the documented 250-sheet cassette plus one-sheet manual-feed slot.
Last observed offer
$249.00
List Price: $378.99
- Confirm offer eligibility on Amazon
Size: Medium
Price checked
Observed condition: new. Coupon and subscription requirements unverified.
Prices are per listed package. Pickoryx may earn a commission from qualifying purchases through the paid Amazon links on this page, at no added cost to you.
Published by Pickoryx · Published 2026-10-17 · Source checked 2026-10-16 23:59 UTC
The main trade-off
The TR7120 combines printing with copying, scanning and a 35-sheet ADF; the LBP646Cdw is a color laser printer listed for printing only, with a larger stated cassette and a one-sheet manual-feed slot.
Quick verdict
Choose the PIXMA TR7120 if you need built-in copy/scan and a 35-sheet ADF. Choose the color imageCLASS LBP646Cdw if print-only is enough and its 250-sheet cassette plus one-sheet manual feed fits your paper routine. These are feature-fit differences, not measured performance results.
Choose Canon PIXMA TR7120 Wireless Multi-Function Home Printer if
- You need to copy or scan originals on the printer, including multi-page sets loaded into an ADF.
Choose Canon Color imageCLASS LBP646Cdw Color Laser Printer if
- You only need printing and prefer the documented 250-sheet cassette plus one-sheet manual-feed slot.
When the recommendation changes
- If copy/scan becomes a requirement, the LBP646Cdw's print-only function is a mismatch; if those functions are unnecessary, the TR7120's multifunction feature may not affect the decision.
The differences that matter
| Decision point | Canon PIXMA TR7120 Wireless Multi-Function Home Printer | Canon Color imageCLASS LBP646Cdw Color Laser Printer |
|---|---|---|
| Copy Scan And 35 Sheet Adf Vs Print Only | The PIXMA TR7120 is a print/copy/scan multifunction model with a flatbed and 35-sheet ADF.[1, 2] | Canon lists the color imageCLASS LBP646Cdw as a print-only color laser printer.[3] |
What this changes: Choose around the functions you actually need: the TR7120 includes copy/scan and multi-page ADF intake; Canon lists the LBP646Cdw for printing only.[1, 2, 3] Best fit: Canon PIXMA TR7120 Wireless Multi-Function Home Printer | ||
| Paper Input Capacity And Manual Feed Workflow | Canon lists a 100-sheet plain-paper cassette for the PIXMA TR7120.[2] | Canon lists a 250-sheet standard cassette and one-sheet manual-feed slot for the LBP646Cdw.[3] |
What this changes: The listed capacities and feed slot give buyers a concrete paper-loading difference to check against their routine; this does not establish measured throughput or print quality.[2, 3] Best fit: Canon Color imageCLASS LBP646Cdw Color Laser Printer | ||
Best for your routine
Copying or scanning multi-page originals at the printer
Best fit: Canon PIXMA TR7120 Wireless Multi-Function Home Printer
Based on listed features, not comparative testing.
Canon lists copy and scan functions plus a 35-sheet ADF for the TR7120; it lists the LBP646Cdw for printing only.
Color printing when copy and scan are not needed and the documented paper feed fits
Best fit: Canon Color imageCLASS LBP646Cdw Color Laser Printer
Based on listed features, not comparative testing.
Canon lists the LBP646Cdw with a 250-sheet standard cassette and a one-sheet manual-feed slot; this is a documented paper setup, not a measured speed or throughput advantage.
Value and trade-offs
One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.
Current prices were not assessed. Compare a verified current offer only after deciding whether copy/scan, ADF intake and the paper-feed layout matter to your use.
Current offers and price history were not assessed; no purchase-timing guidance is provided.
Limitations
- Canon's published specifications support feature-fit guidance only; no hands-on comparison was performed.
- No comparative print-quality, speed, cost-per-page, reliability or long-term maintenance evidence was established.
- Current offers and price history were not assessed.
Questions shoppers ask
Can the imageCLASS LBP646Cdw copy or scan?
Canon lists the LBP646Cdw's function as Print. If you need built-in copy or scan functions, the TR7120 is the model in this comparison that Canon lists with those functions.
How do the listed paper feeds differ?
Canon lists a 100-sheet plain-paper cassette for the TR7120. For the LBP646Cdw it lists a 250-sheet standard cassette and a one-sheet manual-feed slot.
Methodology and sources
Compared Canon's published functions and stated paper-input configurations for the exact models; recommendations are conditional feature fit only.
AI assisted source organization and drafting; no physical products were tested.
View 3 sources
- 1.PIXMA TR7120 Wireless Multi-Function Home PrinterCanon U.S.A., Inc. · Official specifications · Source checked 2026-10-16 23:59 UTC
Evidence used on this page
- Product SKU and model; features section; technical specifications: print, copy, scan, paper capacity: Identifies PIXMA TR7120 SKU 7178C002 and lists multi-function printing, copying and scanning; the product page also describes the 35-sheet ADF and 100-sheet cassette.
- 2.Canon Support for PIXMA TR7120Canon U.S.A., Inc. · Official support · Source checked 2026-10-16 23:59 UTC
Evidence used on this page
- Technical Specifications: Media Handling, Paper Capacity, Copy, Scan, Scanner Type and ADF Capacity: Lists cassette media handling with 100 sheets of plain paper; copy and scan features; flatbed and ADF scanner; ADF capacity 35 sheets of plain paper or 5 sheets legal size.
- 3.Color imageCLASS LBP646Cdw - Wireless, Duplex Laser PrinterCanon U.S.A., Inc. · Official specifications · Source checked 2026-10-16 23:59 UTC
Evidence used on this page
- Product SKU and model; product feature summary; technical specifications: Functions and Paper Capacity: Identifies Color imageCLASS LBP646Cdw SKU 6929C008 as a color laser model with Print as its listed function; lists a 250-sheet standard cassette and one-sheet manual-feed slot.