NCR 7156, Operating And Troubleshooting Manual

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Chapter 2: Troubleshooting 17
Printhead
Carriage
Foam
Pad
Insert Foam Pad Here
Bottom View of
Carriage Assembly
To confirm the condition of the foam pad, open the front cover and
slide the print head carriage to the left. Press down on the paper feed
roll until it clicks and remains open. Remove the slip table and use a
flash light if necessary to examine the black foam pad on the bottom,
right rear of the print head carriage.
If the pad is missing, damaged, or partially dislodged; remove the
carriage and repair the pad or replace the print head carriage. For more
information on replacing the print head, see the 7156 Service Guide.
Reassemble the printer and perform the MICR adjustment. Then repeat
the MICR read test. For more information on adjusting the MICR, see
“In-Place MICR Adjustment” on page 20.
If the pad is in good condition, continue checking the following.
Read head Tilt
Foam
Pad
Good
Bad
Read
Head Read
Head
Foam
Pad