Cardstock compatibility depends on the exact printer, stock and feed mode. A published plain-paper weight range does not automatically approve cardstock at the same weight. Check media type, thickness where specified, coating, size, feed path and simplex or duplex restrictions together.
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Weight does not describe the whole sheet
GSM is mass per square meter. Thickness is a separate measurement. Two 200 gsm stocks can bend and feed differently because of fiber, surface treatment and construction. US “lb” numbers also depend on the paper category’s basis size: 80 lb text and 80 lb cover are not interchangeable weights. Never convert an unspecified lb value into GSM as if there were one universal multiplier.
Build a compatibility record
| Required fact | Where to look |
|---|---|
| Exact stock type and product | Paper maker’s packaging or technical sheet |
| Permitted weight or thickness | Printer manual, separated by tray and media type |
| Sheet dimensions | Feed-size table and any custom-size limits |
| Loading route and sheet count | Manual feed or rear tray instructions |
| Coating and heat suitability | Paper manufacturer’s inkjet or laser designation |
| Duplex permission | Two-sided media table, not the general duplex feature |
Why the feed path matters
A supported stock might be permitted only through a particular input path or one sheet at a time. A cassette rating can differ from a manual-feed rating. Do not infer a “straight-through path” from a rear tray photograph: the internal route must be documented. Guides should contact the sheet as instructed without bowing it.
The media setting can change the documented printing behavior. Select the setting recommended for the stock instead of leaving “plain paper” because the dimensions match. Laser heat compatibility and inkjet surface absorption are separate requirements. Avery’s material guidance illustrates why printer-technology labels matter; it does not certify every card product on every printer.
Before committing to a batch
- Locate explicit support for your media class and input path.
- Confirm that the stock maker approves the printing technology.
- Load only the permitted quantity and use the documented orientation.
- Print a low-value sample without forcing the feed.
- Inspect skew, marks, adhesion or drying and unwanted curl.
- Stop if the printer resists the media or develops a repeatable fault.
When the manual is silent
Treat the combination as unverified. Ask the manufacturer with the stock’s product number, size, weight, thickness and coating. Do not quietly turn “not listed” into “compatible” or “incompatible”: those are different findings. A successful owner sample is useful evidence about that sample and workflow, not a warranty for a whole stock category.
Never force thick sheets, defeat interlocks or modify rollers. If the job needs undocumented heavy stock, a print shop may be the appropriate workflow.
Sources and scope
Official references checked October 6, 2026. Model manuals apply to their named US edition; they do not establish support on another printer. The decision examples and workflow checklists are our editorial analysis. No physical printer test was performed for this guide.