Toshiba B-EV4 manual Print Quality, Ribbon run out Loading the ribbon

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4. TROUBLESHOOTING

EO18-33025

4.2 Print Quality

4.2 Print Quality

Problem

Possible Cause

Recovery Procedure

 

Check if interface cable is well

Re-connect cable to interface.

 

connected to the interface connector.

 

 

The serial port cable pin configuration

Please replace the cable with pin to pin

 

is not pin to pin connected.

connected.

Not Printing

The serial port setting is not consistent

Please reset the serial port setting.

between host and printer.

 

 

 

 

The port specified in the Windows

Select the correct printer port in the

 

driver is not correct.

driver.

 

The Ethernet IP, subnet mask,

Configure the IP, subnet mask and

 

gateway is not configured properly.

gateway.

 

Label or ribbon loaded not correctly.

Follow the instructions in loading the

No print on the label

media or loading the ribbon.

 

 

Ribbon run out.

Loading the ribbon.

Continuous feeding labels

The printer setting may go wrong.

Please do the initialization and gap/black

mark calibration.

 

 

 

Gap/black mark sensor sensitivity is

Calibrate the gap/black mark sensor.

 

not set properly (sensor sensitivity is

 

 

not enough)

 

Paper Jam

Make sure label size is set properly.

Set label size exactly as installed paper

 

 

in the labeling software or program.

 

Labels may be stuck inside the printer

Remove the stuck label.

 

mechanism near the sensor area.

 

 

 

 

Poor Print Quality

Top cover is not closed properly.

Close the top cover completely and make

 

 

sure the right side and left side levers are

 

 

latched properly

 

Check if supply is loaded correctly.

Reload the supply.

 

Ribbon and media are incompatible.

Change the ribbon or label combination.

 

Check if dust or adhesives are

Clean the print head.

 

accumulated on the print head.

 

 

Check if print density is set properly.

Adjust the print density and print speed.

 

Check print head test pattern if head

Run printer self-test and check the print

 

element is damaged.

head test pattern if there is dot missing in

 

 

the pattern.

4-2

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Contents EV4 Series Table of Contents Front View Feature of the B-EV4D/EV4TInterior Rear ViewEV4T V 4 D G S 14 QM R Indication of the Model NameEV4D EV4T Basic SpecificationsTUV External Media Holder B-EV904-PH-QM-R Color Status Key and LEDMedia Type Supply SpecificationsDetection Area of the Reflective Sensor Detection Area of the Transmissive SensorFigure below shows the effective print area on the media RibbonBlock Diagram Electronic SpecificationsU6 Sdram Main PC Board LayoutSdram Description of the Main PC BoardDC/DC Converter U22 Type TS34063 JP2 SD Card Slot JP7 Serial Interface JP9 USB Type Type B Connector JP20 Ribbon End Sensor Print Head JP30 Lubrication Replacing the Important PartsEV4T model Replacing the Top CoverEV4D model Hook Media View Window Disconnect the connector from the feed button PC board Replacing the Lower Cover Replacing the Main PC Board Replacing the Important Parts Replacing the Platen Ass’y Remove the two screws which secure the print head ass’y Replacing the Print Head Ass’yConnector Print Head Ass’y Bracket Print Head Block Latch Top Inner Cover Remove the two pins which secure the print head ass’y Plate Replacing the Stepping Motor Lubrication Replacing the Gear Cover Replacing the Important Parts Replacing the Feed Button PC Board Replacing the Cover Open Sensor Replacing the Ribbon Sensor B-SV4T model only Remove the black mark sensor Replacing the Black Mark SensorReplacing the Important Parts Replacing the Feed Gap Sensor Lower Replacing the Important Parts Remove the feed gap sensor upper Replacing the Feed Gap Sensor UpperReplacing the Important Parts LED Status TroubleshootingRibbon run out Loading the ribbon Print QualityMaintenance Maintenance System Mode Abort of Label Format Auto Call Sensor Adjustment