IBM 6400-I15 Operation Guide - Page 93

Solving Printer Problems

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Solving Printer Problems If you are having print quality or other problems, locate your printer problem in the table below and do the Corrective Action. If more than one corrective action task is listed, test the printer after each task. If the problem persists, contact an IBM service representative. Problem Poor print quality: dark print light print light print on half the page missing dots or characters smeared print wavy vertical lines Torn or damaged forms Loss of forms position Corrective Action 1 Adjust the forms thickness lever setting. Print quality can be affected if it is too loose or too tight. 2 Adjust the paper tension horizontally by moving the right tractor. Print quality can be affected if it is too loose or too tight. 3 Make sure the ribbon threads around the ribbon guides and between the hammer bank cover and ribbon mask, as shown on the ribbon path diagram. Turn the ribbon spools to ensure that the ribbon tracks correctly in the ribbon path. 4 Clean the printer (page 75). 5 Replace the ribbon (page 48) with an approved ribbon. 1 Reset the forms thickness lever for thicker paper. 2 Adjust the paper tension horizontally by moving the right tractor. Too high a paper tension can cause tearing of the tractor feed holes. 3 Check the paper slot for foreign material. 4 For thick, multipart forms, set the SET PLATEN AT BOTTOM OF FORM parameter to OPEN. (See Chapter 4, "Configuration Menus," in the Setup Guide.) 1 Set the forms thickness lever for thicker paper. continued next page Operator's Guide 79

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Solving Printer Problems
79
Operator’
s Guide
If you are having print quality or other problems,
locate your printer problem in the table below
and do the Corrective Action. If more than one
corrective action task is listed, test the printer
after each task. If the problem persists, contact
an IBM service representative.
Problem
Corrective Action
Poor print quality:
dark print
light print
light print on half the page
missing dots or characters
smeared print
wavy vertical lines
1
Adjust the forms thickness lever setting.
Print quality can be affected if it is too
loose or too tight.
2
Adjust the paper tension horizontally by
moving the right tractor. Print quality can
be af
fected if it is too loose or too tight.
3
Make sure the ribbon threads around the
ribbon guides and between the hammer
bank cover and ribbon mask, as shown
on the ribbon path diagram. T
urn the
ribbon spools to ensure that the ribbon
tracks correctly in the ribbon path.
4
Clean the printer (page 75).
5
Replace the ribbon (page 48) with an
approved ribbon.
Torn or damaged forms
1
Reset the forms thickness lever for
thicker paper.
2
Adjust the paper tension horizontally by
moving the right tractor. T
oo high a paper
tension can cause tearing of the tractor
feed holes.
3
Check the paper slot for foreign material.
4
For thick, multipart forms, set the SET
PLATEN AT BOTTOM OF FORM
parameter to OPEN. (See Chapter 4,
“Configuration Menus,” in the
Setup
Guide
.)
Loss of forms position
1
Set the forms thickness lever for thicker
paper.
continued next page