Printing apparatus

摘要

A printing apparatus conducts inspection associated with printing by changing a relative positional relationship between a line print head and a sheet feeding position for a sheet in a direction perpendicular to a direction in which the sheet is fed, forming an image on the sheet using the line print head a plurality of times, and reading the formed images using a reading unit.

主权项

1. A method comprising:
providing a print head of a line-type having an array of recording elements arranged in a direction including a vector of a second direction perpendicular to a first direction in which sheets are conveyed; providing a sensor having an array of photodetectors arranged along a sensor length including a vector of the second direction; and performing a print mode in which actual images are formed with the print head using a first sheet to receive the actual images, and reading is not performed with the sensor; and performing an inspection mode in which inspection patterns are formed with the print head using a second sheet having a size in the second direction larger than both that of the first sheet and the sensor length to receive the inspection patterns, and the formed inspection patterns are read with the sensor.