Patent US5526735A successfully refreshed from Google Patents.
EP0535686A2
Expired / Lapsed
EP
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Ink jet apparatus capable of practicing an improved recovery operation
Assignee: Canon Inc
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Filing: 1992-10-01
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Granted: —
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Expires: 2012-10-01
Abstract
Abstract An ink jet apparatus performs recording by ejecting from the head (1) portion the ink which is contained in an exchangeable ink jet cartridge (2) for the apparatus to form desired images on a recording medium. The apparatus performs suction recovery operation for the head portion (1) in the non-installation state where the ink jet cartridge (2) is removed from the apparatus. With this suction recovery, all the ink in the ink passage (116) from the installation portion for the ink jet cartridge (2) to the recording head (1) is exhausted from the head portion; hence making it possible to remove bubbles remaining in ink totally and easily without any additional components and any resultant contamination in the nozzles provided for the recording head (1).
Inventors
- 👤 Mineo C/O Canon Kabushiki Kaisha Kaneko
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 14:46
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/165; B41J2/16517; B41J2/1652; B41J2/16523; B41J2/16505; B41J2/16508; B41J2/17; B41J2/175; B41J2/17566; B41J2/19
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
58 words
An ink jet apparatus for performing recording by ejecting from the head portion ink contained in an exchangeable ink jet cartridge for the apparatus to form desired images on a recording medium, wherein said apparatus performs a suction recovery operation for said head portion in the non-installation state where said ink jet cartridge is removed from said apparatus.
Claim 2
Dependent Claim
42 words
An ink jet apparatus according to Claim 1, wherein said suction recovery operation is to cause all the ink in the ink passage from said installation portion for the ink jet cartridge to said head to be exhausted from said head portion.
Claim 3
Dependent Claim
26 words
An ink jet apparatus according to Claim 1, wherein said suction recovery operation is performed only when said ink jet cartridge is removed from the apparatus.
Claim 4
Dependent Claim
30 words
An ink jet apparatus according to Claim 1, wherein said suction recovery operation is at least to cause the total quantity of ink in said recording head to be exhausted.
Claim 5
Dependent Claim
111 words
An ink jet apparatus comprising the following: an ink jet cartridge reservoiring ink to be supplied to the head portion for ejecting said ink to form desired images and exchangeable for the apparatus; ink supply passage for supplying ink between said ink jet cartridge and said head portion; suction recovery means covering the discharging surface of said head portion to perform the suction of ink; means for detecting the removal of said ink jet cartridge from the apparatus; and means for performing the suction operation of ink from said head portion by operating said suction recovery means when the removal of said ink jet cartridge is detected by said detecting means.
Claim 6
Dependent Claim
38 words
An ink jet apparatus according to Claim 5, wherein said suction recovery operation performs suction to cause the total quantity of ink in said ink supply passage to the head portion to be exhausted from the ink portion.
Claim 7
Dependent Claim
30 words
An ink jet apparatus according to Claim 5, wherein said suction recovery operation is at least to cause the total quantity of ink in said recording head to be exhausted.
Claim 8
Dependent Claim
68 words
An ink suction recovery operation executable in the following steps of: removing an ink cartridge reservoiring ink to be supplied to the recording head for ejecting ink through the ink supply passage; and performing the suction operation for exhausting from the discharging ports of the recording head the total quantity of ink in said ink supply passage and recording head subsequent to the removal of said ink cartridge.
Claim 9
Dependent Claim
47 words
An ink jet apparatus according to Claim 8, wherein the suction operation is performed to refill ink in said ink supply passage and recording head by installing an ink cartridge anew after the total quantity of ink in said ink supply passage and recording head is exhausted.
Claim 10
Dependent Claim
114 words
An ink jet recording apparatus for forming images on a recording medium by ejecting from the head ink contained in an exchangeable ink cartridge for the apparatus, comprising the following: installation detecting means for detecting whether said ink cartridge is installed or not; suction means being in contact with the recording head airtightly to suck ink from the recording head by suction; installation detecting means for detecting the removal of said ink cartridge and the installation of a new ink cartridge; and control means for performing the recovery of ejecting function of said recording head by executing suction by suction means by driving the suction means each time the removal and installation are detected.
Claim 11
Dependent Claim
43 words
An ink jet apparatus according to Claim 10, wherein ink in the installation portion for said ink cartridge and ink supply passage to the recording head is totally moved by suction means to be driven at the time of said removal and installation.
Claim 12
Dependent Claim
51 words
An ink jet apparatus according to Claim 10, wherein by driving said suction means, ink is removed from the ink supply passage to make it empty when the said ink cartridge is removed and then the ink supply passage is entirely refilled with ink when an ink cartridge is again installed.
References Cited (Backward Citations)
No citation records indexed.
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