Ink-jet having battery capacity detection

A recording apparatus for recording by driving a driving load by supplying a power from battery, comprising:

• detecting means for detecting a capacity of the battery;
• drive control means for driving the driving load for a predetermined period of time just before recording operation;
• and
• detection control means for allowing the detecting means to detect the capacity for said predetermined period of time.

An ink jet recording apparatus which has a recording head for recording by discharging ink from a discharge port to a recording medium and protecting means for capping the discharge port of the recording head and executes an operation by supplying a power source from a battery, comprising:

• detecting means for detecting a capacity of the battery;
• load control means for applying a load to the battery for a predetermined period of time just before the capping of the discharge port of the recording head by the protecting means is released;
• and
• detection control means for allowing the detecting means to detect the capacity for said predetermined period of time.

A recording apparatus to which power is supplied from a battery and which records onto a recording medium by using a recording head, comprising:

• battery detecting means for detecting run-down in battery capacity of the battery on the basis of a voltage of the battery;
• a motor for relatively moving the recording head and the recording medium;
• and
• detection control means for allowing the battery detecting means to execute the voltage detection for an acceleration or deceleration period of time of the motor.

An ink jet recording apparatus to which power is supplied from a battery and which executes recording onto a recording medium by using a recording head for discharging ink from a discharge port, comprising:

• battery detecting means for detecting run-down in battery capacity of the battery on the basis of a voltage of the battery;
• capping means for capping the discharge port of the recording head;
• load control means for applying a load to the battery for a predetermined period of time just before the capping means releases the capping of the discharge port of the recording head;
• first detection control means for allowing the battery detecting means to execute a voltage detection for said predetermined period of time;
• a motor for relatively moving the recording head and the recording medium;
• and
• second detection control means for allowing the battery detecting means to execute the voltage detection for an acceleration or deceleration period of time of the motor.

An ink jet recording method of executing recording while relatively moving a recording head to which power is supplied form a battery and which discharges ink from a discharge port to a recording medium, comprising the steps of:

• detecting run-down in battery capacity of the battery on the basis of a voltage of the battery while applying a load to the battery for a predetermined period of time before the recording is started;
• opening a cap which covers the discharge port of the recording head when the run-down in battery capacity is not detected, thereby executing a recording operation;
• and
• inhibiting the cap which covers the discharge port of the recording head from opening when the run-down in battery capacity has been detected.