148 LCD display Description Recovery method M/B COVER OPEN The maintenance box cover is open. Close the maintenance box cover. NO MAINT BOX The maintenance box is not loaded. Load a maintenance box with sufficient space. See "Replacing Maintenance Box" on page 64. M/B READ ERROR The maintenance box informatio n could not be read. • Remove the maintenance box. Load the mainte- nance box again. • If the error occurs again, replace the maintenance box with a new one. See "Replacing Maintenance Box" on page 64. REPLACE INK It is time to replace the ink cartridge. Load an ink cartridge with sufficient ink. See "Replacing the Ink Cartridge" on page 61.
REPLACE MAINT B It is time to replace the maintenanc e box. Load a maintenance box with sufficient space. See "Replacing Maintenance Box" on page 64. NOZZLE CLOGGED A nozzle clog that cannot be recov- ered. Check the printing result, and if the nozzle clog can- not be permitted, perform repairs. CUT UNAVAILABLE Autocutting is being performed 2 o r more times with the paper in th e same position. To prevent pieces of paper, autocutting cannot be performed twice or more without feeding the paper. Autocutting is unnecessary. SERVICE SOON ## The product is near the end of its ser- vice life.
Because the internal parts of the printer are near the end of their service life, prepare to replace the printer, or prepare a printer for replacement. PRINTER ERROR ## ##: 7B or 7C Environmental temperature is out o f spec. Environmental temperature is too low (7B) or too high (7C). Set operating temperature from 10 to 35°C {50 to 95°C}. Turn on the power again. PRINTER ERROR ## ##: 20 to 54, 64 to 75, A9, B0 to DA Paper jam Poor autocutter operation Irregular ambient temperature Malfunction 1. Turn the printer off. 2. Open the roll paper cover. 3. Check the paper path for a paper jam. If jammed paper is found, remove it completely. 4. Set a paper. 5. Turn the printer on.
If the error occurs again, perform repairs. SERVICE REQD. ## ##: A0 to A3 The product is beyond its service life. Perform repairs. Failure in firmware updating Failed to update the firmware. Turn the power on again, and if the error occurs again, perform repairs.