JP2006231871A5

JP2006231871A5 -

Info

Publication number: JP2006231871A5
Application number: JP2005053571A
Authority: JP
Filing date: 2005-02-28
Publication date: 2008-06-19
Anticipated expiration: 2025-02-28

Claims

A liquid ejecting apparatus that ejects liquid onto a recording material,
A platen for supporting the recording material;
An ejection head that reciprocates on a recording material supported by the platen and ejects liquid onto the recording material;
A light emitting unit that reciprocates with the ejection head and that emits light toward the recording object and the platen; and a light receiving unit that receives light reflected from the recording object, and optically detects the presence or absence of the recording object An optical sensor to detect automatically,
A usage amount measuring unit for measuring the usage amount of the liquid ejecting apparatus;
A liquid ejecting apparatus comprising: a correction unit that corrects a result detected by the optical sensor based on the usage amount measured by the usage amount measurement unit.

2. The liquid ejecting apparatus according to claim 1, wherein the correction unit corrects the recording material as being outside the recording material with respect to a result detected by the optical sensor as the usage amount increases.

The liquid ejecting apparatus according to claim 1, wherein the correction unit corrects a detection result of the presence or absence of the recording material in a direction in which the optical sensor reciprocates.

A transport unit that transports the recording object in a direction perpendicular to a direction in which the optical sensor reciprocates;
The liquid ejecting apparatus according to claim 1, wherein the correction unit corrects a detection result of the presence or absence of the recording material in a direction in which the recording material is conveyed.

The liquid ejecting apparatus according to claim 1, wherein the usage amount measuring unit calculates the usage amount by measuring a light emission time of the light emitting unit.

The liquid ejecting apparatus according to claim 5, wherein the usage amount measurement unit calculates a light emission time by measuring a power-on time.

The liquid ejecting apparatus according to claim 1, wherein the usage amount measurement unit calculates the usage amount by measuring an ejection amount of the liquid ejected from the ejection head.

The liquid ejecting apparatus according to claim 7, wherein the usage amount measuring unit calculates the ejection amount by measuring the number of the recording objects.

The liquid ejecting apparatus according to claim 7, wherein the usage amount measuring unit calculates the ejection amount by measuring an amount of liquid ejected from the ejection head.

The liquid ejecting apparatus according to claim 9, wherein the usage amount measuring unit calculates the amount of the liquid based on an ejection mode.

The liquid ejecting apparatus according to claim 1, wherein the correction unit performs fine correction as the detection resolution of the optical sensor is higher.

The liquid ejecting apparatus according to claim 1, wherein the correction unit determines a range in which the liquid is ejected to the recording material based on the correction.

A control method of a liquid ejecting apparatus that ejects liquid onto a recording material,
By reciprocatingly moving on the recording object supported by a platen, a light emitting part emits light toward the recording object and the platen, and light reflected from the recording object is received by the light receiving part. The optical sensor detects the presence or absence of recorded matter,
Measure the usage amount of the liquid ejecting apparatus,
A control method for correcting a result detected by the optical sensor based on the usage amount.

A computer program for controlling a liquid ejecting apparatus that ejects liquid onto a recording material, the computer comprising:
By reciprocatingly moving on the recording object supported by a platen, a light emitting part emits light toward the recording object and the platen, and light reflected from the recording object is received by the light receiving part. A function to optically detect the presence or absence of recorded matter with an optical sensor,
A function of measuring the usage amount of the liquid ejecting apparatus; and
The program which implement | achieves the function which correct | amends the result which the said optical sensor detected based on the said usage-amount.

  A liquid ejecting apparatus that ejects liquid from an ejection head onto the recording material while supporting the recording material,
  An optical sensor for optically detecting the presence or absence of the supported recording material;
  A usage amount measuring unit for measuring the usage amount of the liquid ejecting apparatus;
  A liquid comprising: a correction unit that corrects the detection of the presence or absence of a recording object as the detection accuracy of the optical sensor deteriorates due to the increase in the usage amount based on the usage amount measured by the usage amount measurement unit. Injection device.