Citizen PMU-2200II, Service Manual

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PMU2200
Ⅱ
/2300
ⅡSERIES
Service Manual
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20
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3.
TROUBLESHOOTING
3.1
Error Indication
z
Paper end
Paper out is detected in two steps: paper near-end and paper end. ERROR LED will light when the
paper is empty. If paper end is detected, refill the paper. If the printer cover is open, a paper-end is
detected.
z
Printer Platen open
During printing, do not open the
platen
. If you open the printer cover accidentally, the ERROR
LED blinks. Check the paper, pull the paper straightforward several cm (or inches) out of the
printer, and then close the
Platen
. Printing resumes automatically. Sending a command to resume
printing may be required depending on the memory switch setting.
z
Thermal head overheat
When you print dense characters or dark image, the head temperature rises. If the head temperature
exceeds a specified level, the printer stops printing operation and waits till the head temperature is
lowered. During waiting, the ERROR LED blinks. When the head temperature is lowered, printing
resumes automatically.
z
Cutter lock
If the cutter blade stops operating due to paper jam or the like, the ERROR LED blinks. Remove
the cause of the trouble and press the FEED button. If the blade still does not move and the printer
cover cannot be opened.
In this case, do not open the paper cover forcibly. Insert a Phillips
screwdriver (size #1) into the cutter lock releasing feed hole and turn it in the direction of arrow
(clockwise).
When you find that both ends of the blade reached the lowest position, stop turning the screwdriver.
Open the cover and follow the procedure of removing jam or other cause of trouble.