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❏ Validation sensor:
The validation sensor is located below the validation paper path and detects whether the
paper is inserted correctly or not. The printer does not proceed to the next operation until
the paper has been removed. (The SLIP LED continues flashing.)
❏ Slip/Validation eject sensor:
The slip/validation eject sensor is located in the slip paper exit and detects whether the
paper is removed or not after printing. The printer does not proceed to the next operation
until the paper has been removed.
1.5.2 Printer Cover Sensors
1.5.2.1 Receipt section
❏ Paper roll cover open sensor:
•
When a paper roll is selected as the print sheet, if the sensor detects a cover open during
printing, the printer goes offline, stops printing immediately, and the ERROR LED
blinks. Even if the cover is closed, the ERROR LED still blinks. You need to transmit the
error recovery command to recover.
If the printer continues printing, it starts printing from the beginning of the line where
the error occurred; therefore, double printing or printing position shift may occur. It is
recommended to clear the buffers and resend the print data.
•
When a slip is selected as the print sheet, if the sensor detects a cover open during
printing, the printer finishes printing data for the line when the cover open is detected,
then stops the carriage movement and goes offline. The printer goes online when the
cover is closed and restarts printing.
❏ Unit cover open sensor:
•
When the sensor detects a unit cover open during printing, the printer goes offline
depending on the setting of bit 8 for the memory switch.
The default is that the printer finishes printing data for the line when the cover open is
detected and stops printing. The printer goes online when the cover is closed and
restarts printing.
If a recoverable error is selected by memory switch, the printer goes offline, stops
printing immediately and the ERROR LED blinks. Even if the cover is closed, the
ERROR LED still blinks. You need to transmit the error recovery command to recover. If
the printer continues printing, it starts printing from the beginning of the line where the
error occurred. In this case, double printing or printing position shift may occur. It is
recommended to clear the buffers and resend the print data.
1.5.2.2 Slip section
❏ Front cover open sensor:
When the sensor detects a cover open during printing, the printer finishes printing data for
the line when the cover open is detected, then stops the carriage movement and goes offline.
The printer goes online when the cover is closed and restarts printing.
1-24 General Information
Rev. E
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Table of Contents
Troubleshooting
