Inkjet recording apparatus and recording method using the same
AssigneeMiyakoshi Printing Machinery Co., Ltd.
InventorsHideo Izawa, Takehiro Fujiwara
Life of this patent
Estimating the term…
Abstract
An inkjet recording apparatus 100 which records on a transferred recording medium X by an inkjet scheme, wherein the inkjet recording apparatus 100 includes guide rolls R for guiding the recording medium X, the recording medium X being negatively charged, recording units 1, 2, 3, and 4 formed of a plurality of recording heads 1a, 2a, 3a, and 4a for spraying ink onto the recording medium X, and a conductive frame unit 11 for supporting the recording heads 1a, 2a, 3a, and 4a, the recording heads 1a, 2a, 3a, and 4a and the conductive frame unit 11 having a continuity relation and the recording heads 1a, 2a, 3a, and 4a being grounded via the conductive frame unit 11.
Claims15
An inkjet recording apparatus which records on a transferred recording medium by an inkjet scheme, the apparatus comprising:
- a guide roll for guiding a recording medium;
- a negatively charged recording medium;
- a recording unit formed of a plurality of recording heads for spraying ink onto the recording medium;
- a conductive frame unit for supporting the recording heads;
- and
- an upstream-side ion generator for providing the recording medium with a charge, wherein
- the recording heads and the conductive frame unit have a continuity relation,
- the recording heads are grounded via the conductive frame unit,
- a plurality of the recording units are provided along the transfer route of the recording medium,
- the upstream-side ion generator is positioned on an upstream side of the recording unit on a transfer route of the recording medium, and
- the apparatus further comprises, on a back surface side of the recording medium between the recording units, an intermediate ion generator for providing the recording medium with a negative charge.
A recording method using an inkjet recording apparatus which records on a transferred recording medium by an inkjet scheme, the apparatus including a guide roll for guiding a recording medium, a negatively charged recording medium, a recording unit formed of a plurality of recording heads for spraying ink onto the recording medium, a conductive frame unit for supporting the recording heads, and an upstream-side ion generator for providing the recording medium with a charge,
- the recording heads and the conductive frame unit having a continuity relation, the recording heads being grounded via the conductive frame unit, the upstream-side ion generator being positioned on an upstream side of the recording unit on a transfer route of the recording medium, and the apparatus further comprising, on a back surface side of the recording medium, an electrostatic sensor for measuring a charge voltage of the recording medium, the method comprising:
- a charging step of providing, by the upstream-side ion generator, the recording medium with a negative charge;
- a recording step of spraying, by the recording unit, ink onto the recording medium provided with the negative charge;
- a measuring step of measuring, by the electrostatic sensor, a charge voltage of the recording medium;
- and
- an adjusting step of adjusting a charge amount to be provided by the upstream-side ion generator based on the charge voltage, wherein
- the charging step, the recording step, the measuring step, and the adjusting step are repeatedly performed.
An inkjet recording apparatus which records on a transferred recording medium by an inkjet scheme, the apparatus comprising:
- a guide roll for guiding the recording medium;
- a negatively charged recording medium;
- a recording unit formed of a plurality of recording heads for spraying ink onto the recording medium;
- a conductive frame unit for supporting the recording heads;
- and
- an upstream-side ion generator for providing the recording medium with a charge, wherein
- the recording heads and the conductive frame unit have a continuity relation,
- the recording heads are grounded via the conductive frame unit,
- the upstream-side ion generator is positioned on an upstream side of the recording unit on a transfer route of the recording medium,
- the apparatus further comprises, on a back surface side of the recording medium, an electrostatic sensor for measuring a charge voltage of the recording medium,
- the guide roll is arranged between the upstream-side ion generator and the recording unit in the transfer route of the recording medium, and
- the electrostatic sensor is arranged on a downstream side of the guide roll.
Dependencies are inferred from the claim text.