EP0867298A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Printing apparatus and check pattern printing method
Assignee: Canon Inc
•
Filing: 1998-03-24
•
Granted: —
•
Expires: 2018-03-24
Abstract
Abstract A check pattern for a registration adjustment under low resolution condition of 600 dpi × 600 dpi at substantially central portion of a printing medium is printed. After performing the registration adjustment based on the printed pattern, the check pattern is printed under high resolution condition of 1200 dpi × 600 dpi at a position not causing interference with the former check pattern. On a basis of this, the registration adjustment is again performed. By this, the registration adjustment in high precision printing can be performed easily. Also, necessary two check patterns can be printed on a single printing medium to permit lowering of cost concerning printing medium to be used in check pattern printing.
Inventors
- 👤 Jiro Moriyama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 18:15
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/21; B41J2/2132; B41J2/2135; B41J29/00; B41J29/38; B41J29/393; B41J19/00; B41J19/14; B41J19/142
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
126 words
A printing apparatus performing printing on a
printing medium by using a printing head, characterized by comprising: pattern printing means for printing a check
pattern used for inspecting a mutual positional
relationship between images to be printed at
different timing; setting means for setting printing timing of
the printing head based on inputting of set
information concerning the mutual positional
relationship between the images; and control means for making said pattern printing
means print a first check pattern, making said
setting means set printing timing of the printing
head based on set information input on a basis of
the first check pattern, and making said pattern
printing means print a second check pattern under a
condition that said printing timing is set by said
setting means.
Claim 2
Dependent Claim
35 words
A printing apparatus as claimed in claim 1,
which comprises a plurality of printing heads and
wherein a printing image is formed by images printed
by said plurality of printing heads at respectively
different timing.
Claim 3
Dependent Claim
38 words
A printing apparatus as claimed in claim 2,
characterized in that said pattern printing means
prints the first check pattern in a predetermined
resolution and prints the second check pattern in a
resolution higher than said predetermined
resolution.
Claim 4
Dependent Claim
72 words
A printing apparatus as claimed in claim 3,
which further comprises transporting means for
relatively transporting the printing medium with
respect to the printing head, and wherein said
control means controls said transporting means so
that when said pattern printing means prints the
second check pattern on the printing medium on which
the first check pattern has been already printed,
said second check pattern does not interfere with
said first check pattern.
Claim 5
Dependent Claim
44 words
A printing apparatus as claimed in claim 4,
characterized in that said control means controls
said transporting means so that when said pattern
printing means prints the first check pattern, said
first check pattern is printed at a central portion
of the printing medium.
Claim 6
Dependent Claim
26 words
A printing apparatus as claimed in claim 1,
characterized in that the printing head ejects an
ink toward the printing medium in order to perform
printing.
Claim 7
Dependent Claim
27 words
A printing apparatus as claimed in claim 6,
further characterized by comprising means for
supplying a processing liquid making the ink ejected
by the printing head insoluble.
Claim 8
Dependent Claim
29 words
A printing apparatus as claimed in claim 6,
characterized in that the printing head includes a
thermal energy generating element for generating
thermal energy used for ejecting the ink.
Claim 9
Dependent Claim
166 words
A printing apparatus performing printing on a
printing medium by using a printing head,
characterized by comprising: executing means for executing a plurality of
printing modes which differ from each other in a
resolution of printing, and control means for, for each of the plurality of
printing modes, executing pattern printing for
printing a check pattern for inspecting mutual
positional relationship of images to be printed at
different timing and executing timing setting for
setting printing timing of the printing head in the
printing mode based on an input of set information
concerning the mutual positional relationship
between the images said execution of the pattern
printing and the timing setting for each of the
plurality of printing modes being performed
sequentially from the printing mode of the lower
resolution to the printing mode of the higher
resolution, wherein the pattern printing of the check
pattern in each printing mode is performed at the
printing timing set based on the check pattern
printed in preceding printing mode.
Claim 10
Dependent Claim
35 words
A printing apparatus as claimed in claim 9,
which comprises a plurality of printing head, and
wherein a printing image is formed by images printed
by said plurality of printing head at respectively
different timings.
Claim 11
Dependent Claim
60 words
A printing apparatus as claimed in claim 10,
which further comprises transporting means for
relatively transporting the printing medium with
respect to the printing head, and wherein said
control means controls said transporting means so
that when the plurality of check patterns are
sequentially printed on the printing medium, said
plurality of check patterns do not interfere with
each other.
Claim 12
Dependent Claim
39 words
A printing apparatus as claimed in claim 11,
characterized in that said control means prints the
check pattern on a central portion of the printing
medium when a first check pattern among a plurality
of check patterns is printed.
Claim 13
Dependent Claim
26 words
A printing apparatus as claimed in claim 9,
characterized in that the printing head ejects an
ink toward the printing medium in order to perform
printing.
Claim 14
Dependent Claim
27 words
A printing apparatus as claimed in claim 13,
further characterized by comprising means for
supplying a processing liquid making the ink ejected
by the printing head insoluble.
Claim 15
Dependent Claim
29 words
A printing apparatus as claimed in claim 13,
characterized in that the printing head includes a
thermal energy generating element for generating
thermal energy used for ejecting the ink.
Claim 16
Dependent Claim
93 words
A printing apparatus performing printing on a
printing medium by using a printing head,
characterized by comprising: transporting means for relatively transporting
the printing medium with respect to the printing
head; and pattern printing means for printing a check
pattern which is printed first among a plurality of
check patterns on a central portion of the printing
medium when the plurality of check patterns are
printed in sequential order on the same printing
medium by controlling said transporting means, and
for printing the plurality of check patterns without
causing interference with each other.
Claim 17
Dependent Claim
80 words
A check pattern printing method of a printing
apparatus performing printing on a printing medium
by using a printing head, characterized by
comprising the steps of: printing a first check pattern for inspecting a
mutual positional relationship between images
printed at different timing; setting printing timing of the printing head
based on the first check pattern; and printing a second check pattern for inspecting
the mutual positional relationship between the
images under a condition that said printing timing
is set.
Claim 18
Dependent Claim
77 words
A check pattern printing method of a printing
apparatus performing printing on a printing medium
by using a printing head, characterized by
comprising the steps of: printing a check pattern which is printed first
among a plurality of check patterns on a central
portion of the printing medium when the plurality of
check patterns are printed in sequential order on
the same printing medium, and printing the plurality of check patterns
without causing interference with each other.
Claim 19
Dependent Claim
93 words
A registration adjusting method of a printing
apparatus performing printing on a printing medium
by using a printing head, characterized by
comprising the steps of: printing a first check pattern for inspecting a
mutual positional relationship between images
printed at different timing; setting printing timing of the printing head
based on the first check pattern; printing a second check pattern for inspecting
the mutual positional relationship between the
images under a condition that said printing timing
is set; and setting the printing timing of the printing
head based on the second check pattern.
Claim 20
Dependent Claim
36 words
A printing apparatus or method wherein at least one
test print pattern is used to control and/or adjust print
timing, for example successive test pattern patterns may
be used to adjust and then check print timing.
Claim 21
Dependent Claim
19 words
A printing apparatus or method having the features
recited in any one or any combination of the preceding
claims.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.