TSC MB340T Series Service Manual

44
Problem
Possible Cause
Recovery Procedure
Poor Print Quality
◼ Ribbon and media is loaded incorrectly.
◼ Dust or adhesive accumulation on the print
head.
◼ Print density is not set properly.
◼ Printhead element is damaged.
◼ Ribbon and media are incompatible.
◼ The printhead pressure is not set properly.
◼ Reload the supply.
◼ Clean the print head.
◼ Clean the platen roller.
◼ Adjust the print density and print speed.
◼ Run printer self-test and check the print head test
pattern if there is dot missing in the pattern.
◼ Change proper ribbon or proper label media.
◼ Adjust the printhead pressure adjustment knob.
◼ The release lever does not latch the printhead properly.
Missing printing on the left or right
side of label
◼ Wrong label size setup.
◼ Set the correct label size.
Gray line on the blank label
◼ The print head is dirty.
◼ The platen roller is dirty.
◼ Clean the print head.
◼ Clean the platen roller.
Irregular printing
◼ The printer is in Hex Dump mode.
◼ The RS-232 setting is incorrect.
◼ Turn off and on the printer to skip the dump mode.
◼ Re-set the RS-232 setting.
Label feeding is not stable (skew)
when printing
◼ The media guide does not touch the edge of
the media.
◼ If the label is moving to the right side, please move the
label guide to left.
◼ If the label is moving to the left side, please move the
label guide to right.
Skip labels when printing
◼ Label size is not specified properly.
◼ Sensor sensitivity is not set properly.
◼ The media sensor is covered with dust.
◼ Check if label size is setup correctly.
◼ Calibrate the sensor by Auto Gap or Manual Gap
options.
◼ Clear the GAP/Black mark sensor by blower.
Wrinkle Problem
◼ Printhead pressure is incorrect.
◼ Ribbon installation is incorrect.
◼ Media installation is incorrect.
◼ Print density is incorrect.
◼ Media feeding is incorrect.
◼ Please refer to the chapter 4.
◼ Please set the suitable density to have good print
quality.
◼ Make sure the label guide touch the edge of the media
guide.
RTC time is incorrect when reboot
the printer
◼ The battery has run down.
◼ Check if there is a battery on the main board.
The left side printout position is
incorrect
◼ Wrong label size setup.
◼ The parameter Shift X in LCD menu is
incorrect.
◼ Set the correct label size.
◼ Press [Menu] →[Setting] → [Shift X] to fine tune the
parameter of Shift X.
The printing position of small label
is incorrect
◼ Media sensor sensitivity is not set properly.
◼ Label size is incorrect.
◼ The parameter Shift Y in the LCD menu is
incorrect.
◼ The vertical offset setting in the driver is
incorrect.
◼ Calibrate the sensor sensitivity again.
◼ Set the correct label size and gap size.
◼ Press [Menu] →[Setting] → [Shift Y] → to fine tune
the parameter of Shift Y.
◼ Set the vertical offset in the driver if you’re using
BarTender.

TSC MB340T Series Specifications

General

Brand	TSC
Model	MB340T Series
Category	Printer
Language	English