push/pull tractor

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push/pull tractor

A printer tractor that can be switched from pushing paper onto the platen to pulling it from the platen. Single-sheet continuous forms can be pushed, but most multipart forms and labels must be pulled to prevent jamming.
References in periodicals archive ?
The transistors are internally input-matched, can be used single-ended or in a push-pull configuration, and are characterized for 30 V to 50 V.
So even a push-pull configuration would only be implemented if it was really warranted, i.
Two 120 mm fans provide excellent airflow thanks to its push-pull configuration.
There is no doubt in my mind that the push-pull configuration is a killer and one that needs to be outlawed in California,'' he said.
It is also available as an auger scraper arrangement, which gives the machine self-loading capability, or in a push-pull configuration designed for two 637s to assist each other when loading.
Another push-pull configuration is shown in Figure 9, where a balun is used.
Molex Incorporated introduced its Quick Mate Duplex (QMD) LC Optical Connector, which includes a one-step, push-pull configuration that can be mated directly to small form-factor pluggable (SFP) transceivers.
These large tables are used primarily for testing satellites and increasingly with multiple shakers possibly in a push-pull configuration.
The train was in a push-pull configuration, with the passenger car in the front; it felt the brunt of the crash but did not derail.
A twin-transistor device, the NES1720P-140 is partially matched and its two sides can be combined externally in either a balanced or push-pull configuration.