Patent ID: 9565329
Date: 2017-02-07
CPC Classifications: H04N

Claim:
1. An image reader comprising: a document table configured to support a document placed thereon, the document table having: a document cover movable between an open state and a closed state, the document cover being configured to cover an upper surface of the document table when the document cover is in the closed state; a reading unit comprising a light source configured to emit light toward the document placed on the document table, the reading unit being configured to perform image reading on a line-by-line basis along a main scanning direction, and output analog data as read data; a converter configured to convert the analog data output from the reading unit into digital data; a changing mechanism configured to change a reading position where image reading is performed, in a sub scanning direction perpendicular to the main scanning direction; a reference member attached to the document table; and a controller configured to: