Diagnosing Problems; Bar Code Verification - TallyGenicom LMPPLS Administrator's Manual

To clean the interior of the printer perform the following steps.
1. Power off the printer and unplug the printer power cord.
2. Open the printer cover.
3. Fully raise the platen lever.
4. Unload the paper.
5. Remove the ribbon cartridge.
6. Lift the ribbon out of the ribbon path.
7. Brush the paper dust and ribbon lint off the tractors, shuttle cover assembly, and base casting with a
soft-bristled, non-metallic brush (such as a toothbrush). Vacuum up the residue.
CAUTION Vacuum carefully around the hammer bank and surrounding area to avoid damage.
To avoid corrosion damage, use only alcohol when cleaning the printer mechanical
elements. Solutions used to clean mechanical elements must contain no water.
8. Wipe the splined shaft with a soft cloth.
9. Check the ribbon mask and hammer bank cover for bits of torn paper or ribbon lint.
10. Remove dust and ink from the platen using a soft cloth lightly moistened with anhydrous alcohol. (The
platen is the thick silver bar behind the hammer bank cover that rotates when the platen lever is
rotated.)
CAUTION When cleaning the platen, be very careful not to get any alcohol in the hammer
bank, because alcohol will cause severe damage to the hammer bank. Only a
trained service technician should clean the shuttle assembly.
11. Brush and vacuum the accumulated dust or residue inside the lower cabinet.
12. Wipe the lower cabinet interior with a clean, lint-free cloth dampened (not wet) with water and mild
detergent or window cleaning solution. Dry the lower cabinet interior by wiping it down with a clean,
lint-free cloth.
13. Install the ribbon and load paper.

Diagnosing Problems

This section is designed to help you fix problems which may arise with normal printer operation.

Bar Code Verification

The most important consideration when printing a bar code is to ensure that the bar code will be scanned
properly. Incorporating a bar code quality procedure in the printing process is the best way to ensure that
bar codes are being printed correctly. A properly implemented verification procedure will increase overall
bar code quality, reduce waste from misprinted bar codes, and achieve high first-time read rates. A high
first-time read rate is an increasingly important factor in newer, more efficient systems where manually
entered data is not acceptable as a backup function. Verification also minimizes the costs of returned
products due to poor reading or unaccountable bar codes.
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