EPSON Stylus Pro 4400/4450/4800/4880/4880C Revision C
Troubleshooting Troubleshooting Based on Panel Messages 173
NO MAINTENANCE TANK
REAR COVER OPEN
TYPE-B OPTION I/F CARD ERROR
CR LOCK UNLOCKED ERROR
LCD Explanation Recovery
NO MNT TNK The Maintenance Tank is not set during one of the movements. Set the Maintenance Tank.
LCD Explanation Recovery
REAR COVER OPEN Generated when Paper Guide Unit is not installed. Under this error, all
of CR motion and ink sequences are halted. Therefore it may give
damages to printing head if this situation continues very long time.
Properly install Paper Guide Unit.
If generated during paper feed movement by ASF, when ASF is
initialized (including paper eject movement) after installation of the
Paper Guide Unit, "Paper end/roll paper end (p.166)" occurs.
When Paper Guide Unit is removed during paper feeding, "Paper
jam(ASF) (p.172)" occurs.
When Paper Guide Unit is removed during roll paper cutting, "Paper
cut error (p.168)" occurs.
If error is not cleared after installation of the Paper Guide Unit, check
the cover sensor operation p.91 by Self Testing Menu and perform
steps below if not normal.
1. Check removal/installation of Paper Guide Unit.
2. Replace the Rear Cover Sensor. (p.225)
LCD Explanation Recovery
OPTION I/F ERROR A non-supported I/F Card is installed into the printer. Turn off the printer, remove the Type-B I/F Card, and then turn on
again.
LCD Explanation Recovery
UNLOCK PRINT HEAD Print head (Carriage Unit) may be locked. Turn off the printer, release the lock of print head (Carriage Unit), and
turn the printer back on p.207.
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