The recording apparatus includes a recording head that performs dot-recording on the recording material through a plurality of recording elements arranged on the recording head; a mechanism to move the recording head in a main scan direction to perform recording; and a transport mechanism to feed the recording material in a sub-scan direction perpendicular to the main scan direction after each main scan operation. The transport mechanism is formed of a combination of driving elements including a driving source. The feeding distance that the recording material is fed in one feeding operation is set synchronized with the driving cycle of the driving elements including the driving source. This arrangement allows the recording head, which has an array of ink ejection nozzles arranged with a conventional density, to produce a dot-recorded image having a resolution two or more times higher than the conventional resolution.
A printhead scans to form marks in a multirow swath on the medium. A mechanism gives relative motion between the head and medium, orthogonal to the scan. Normal advance of the mechanism is at least several rows. There are variants or preferences: in one, the mechanism steps about a row or less to deliberately misalign successive swaths. There is best no associated data shift or normal advance. In another, the step roughly equalizes graininess between image regions with and without normal advance--e.g. between scans near at least one end of a page, to roughly equalize graininess as to swaths near and far from the end. The step best equals different fractions of a row, respectively, between successive swath pairs; these fractions progressively decrease--as e.g. programmed: Preferably Amplitude is 7; Frequency is 0.2244; nPasses are increments from zero through 7; and Phase is zero. Another variant/preference: steps deliberately misalign successive swaths as to scans far from both page ends. Another has small-amplitude reciprocation--as a vibration or successive alternating-direction offsets. An oscillatory signal is injected into the scan or medium-advance drive signals.
Heat dissipating Silicon-on-Insulator (SOI) structures which utilize thermoelectric effects to more effectively dissipate thermal energy from SOI-based electronic circuits.
A multi-functional device having a printer function, facsimile function, scanner function, and copying function houses a recording section for recording images on a recording medium and a reading section for reading images from a document. A shaft is supported between left and right covers of an outer casing. The reading section is disposed above the shaft and rotatable about the shaft to separate from the recording section. Thus, a space is provided above the recording section and the replacement of an ink cartridge in the recording section can be easily performed.
