Liquid cartridge having pivotable lever provided with light-blocking portion

A liquid cartridge configured to be inserted into a cartridge-attachment section in an insertion direction crossing a gravitational direction and accommodated in the cartridge-attachment section in an upright posture, the liquid cartridge in the upright posture comprising:

• a casing comprising:
• a liquid chamber storing liquid therein;
• and
• a liquid passage extending from the liquid chamber in the insertion direction;
• a front wall provided with the liquid passage;
• a rear wall positioned away from the front wall in the insertion direction, the liquid chamber being positioned between the front wall and the rear wall in the insertion direction;
• a top wall positioned between the front wall and the rear wall in the insertion direction;
• and
• a bottom wall positioned between the front wall and the rear wall in the insertion direction and away from the top wall in the gravitational direction, the liquid chamber being positioned between the top wall and the bottom wall in the gravitational direction;
• and
• a lever supported by the casing and pivotable about a pivot axis between a first position and a second position, the lever comprising:
• a light-blocking portion configured to block or attenuate light traveling in a widthwise direction crossing the insertion direction and the gravitational direction, the light-blocking portion being positioned lower at the second position than at the first position;
• and
• a force-receiving portion positioned closer to the front wall than the light-blocking portion is to the front wall in the insertion direction, the pivot axis being positioned frontward of the light-blocking portion and rearward of the force-receiving portion in the insertion direction, the lever pivoting from the second position to the first position upon application of an external force to the force-receiving portion,
• wherein an upper end of the light-blocking portion is separated upward away from to the top wall by a first distance at the first position in the upright posture, the upper end of the light-blocking portion being separated upward away from the top wall by a second distance smaller than the first distance at the second position in the upright posture.