| 摘要 |
An image forming apparatus including a first carriage having a print head independently movable in a main scanning direction, a second carriage having a print head movable with the first carriage, an encoder sheet, first and second home position reference units provided to the first and second carriages, a home position detector that detects the first and second home position reference units, and first and second position detectors provided to the first and second carriages, which detect positions of the first and second carriages by reading the encoder sheet. A control unit controls ejection of ink from the print head of the first carriage based on an output from the first position detector, and ejection of ink from the print head of the second carriage based on the output from the second position detector. |
