Printing apparatus, control method for printing apparatus, and storage medium

• US 10,306,103 B2
• Filed: 12/28/2016
• Issued: 05/28/2019
• Est. Priority Date: 12/09/2014
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Maeda, Yuuki
• Primary Examiner(s): Cruz, Iriana
• Application Number:
  US15/392,182
• Publication Number:
  US 20170111544A1
• Time in Patent Office: 881 Days
• CPC Class Codes: B41J 29/393 Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
• CPC Class Codes: G06K 15/027 Test patterns and calibration arrangements for controlling or analysing printing mechanisms of typewriters or selective printing units B41J29/393 takes precedence; colour correction using test pattern analysis in general H04N1/6033
• CPC Class Codes: H04N 1/0032 with a medium handling apparatus, e.g. a sheet sorter handling thin or filamentary material, e.g. sheets B65H
• CPC Class Codes: H04N 1/0057 Conveying sheets before or after scanning arrangements for conveying sheets as part of the scanning operation H04N1/04 and subgroups
• CPC Class Codes: H04N 1/00694 in an input tray
• CPC Class Codes: H04N 1/00708 Size or dimensions
• CPC Class Codes: H04N 1/00724 Type of sheet, e.g. colour of paper or transparency
• CPC Class Codes: H04N 1/00734 Optical detectors
• CPC Class Codes: H04N 1/00745 Detecting the leading or trailing ends of a moving sheet
• CPC Class Codes: H04N 1/00779 Adjusting settings, e.g. mode, feeding rate or type of paper
• CPC Class Codes: H04N 1/00795 Reading arrangements details of scanning heads H04N1/024; scanning arrangements therefor H04N1/04
• CPC Class Codes: H04N 1/00806 According to type of the original, e.g. colour paper or transparency, or reading a plurality of different types of original
• CPC Class Codes: H04N 1/3873 defined only by a limited number of coordinate points or parameters, e.g. corners, centre; for trimming
• CPC Class Codes: H04N 1/3878 Skew detection or correction
• CPC Class Codes: H04N 2201/0081 Image reader H04N2201/0091 - H04N2201/0094 take precedence
• CPC Class Codes: H04N 2201/0082 Image hardcopy reproducer H04N2201/0091 - H04N2201/0094 take precedence
• CPC Class Codes: H04N 2201/3269 of machine readable codes or marks, e.g. bar codes or glyphs

Abstract

A control method in a printing apparatus includes printing, by a printing unit, an adjustment image for adjusting a printing position on a sheet, conveying, by a conveying unit, the sheet on which the adjustment image is printed, reading, by a reading unit, an image to generate image data, the reading unit being executable to perform reading by a first reading method for reading an image of a sheet without conveying the sheet or a second reading method for reading the image of the sheet while conveying the sheet, and determining, based on that a type of the sheet on which the adjustment image is to be printed is a specific type, to read the adjustment image by the first reading method.

Claims

1. A printing apparatus comprising:

a platen glass on which a document is to be placed;

a reader configured to read the document;

a document feeder configured to convey the document on a tray;

a printer configured to print an image based on an image forming condition; and

a controller configured to;

cause the printer to form a test image on a sheet;

cause the reader to read the test image; and

generate the image forming condition based on a result of the reader reading the test image formed on the sheet,

wherein the reader has a first reading mode for reading the document placed on the platen glass and a second reading mode for reading the document being conveyed by the document feeder,

wherein in a case where the test image is formed on a sheet of a first type, the test image on the sheet of the first type is readable in the second mode,

wherein in a case where the test image is formed on a sheet of a second type, the test image on the sheet of the second type is not readable in the second mode, and

wherein grammage of the sheet of the second type is higher than grammage of the sheet of the first type.

2. The printing apparatus according to claim 1, wherein

the image forming condition is used for adjusting a printing position at which an image is to be printed on the sheet,

the controller obtains, in a case where the reader reads the test image using the first reading mode, an amount of shift in the printing position based on the reading result of the reader, and obtains, in a case where the reader reads the test image using the second reading mode, the amount of shift in the printing position based on the reading result of the reader;

and

the controller generates the image forming condition based on the amount of shift in the printing position.

3. The printing apparatus according to claim 1, further comprising a displaying unit configured to display a first button for selecting the first reading mode and a second button for selecting the second reading mode on a screen,

wherein in a case where the test image is formed on the sheet of the second type, the second reading mode is not executed even if the second button is pressed.

4. The printing apparatus according to claim 1, further comprising a displaying unit configured to display a first button for selecting the first reading mode and a second button for selecting the second reading mode on a screen,

wherein the displaying unit displays, in a case where the test image is formed on the sheet of the second type, the first button without displaying the second button on the screen.

5. The printing apparatus according to claim 1, further comprising a display unit configured to display a screen for making a notification that the test image is not readable in the second reading mode in a case where the test image is formed on the sheet of the second type.

6. The printing apparatus according to claim 1, wherein the controller selects, based on a user instruction, the sheet, and

wherein the controller controls the printer to print the test image on the selected sheet.

7. The printing apparatus according to claim 1,

wherein in a case where the test image is formed on the sheet of the first type, the test image on the sheet of the first type is readable in the first mode, and

wherein in a case where the test image is formed on the sheet of the second type, the test image on the sheet of the second type is readable in the first mode.