Canon BJC 50 - Color Inkjet Printer Service Manual page 72

Part 3: Operating Instructions
15) Print position detection error:
Occurs during when the home position cannot be detected during the print position
detection process.
16) Failed recharge circuit error:
Occurs when the printer is turned on and detects the battery's recharging current
higher than set value at the time. A recharging current higher than the set value
means that the electrical circuit for recharging is faulty and hence recharging is
stopped.
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BJC-50