NCR 7156, Owner'S Manual, Page: 36 / 138

Chapter 3: Solving Problems 7156 Owner’s Guide
September 1997 30
LED (Slip Table) Does Not Come On
Problem What to Do Where to Go
Form or check not inserted
properly Line up the form or check against the guide
(wall) and slide it toward the back of the
printer until it contacts the form stop and can’t
go any further. Extra long forms may need to
be inserted from the side to disengage the
form stop.
Contact a service representative if this does
not resolve the problem.
See “Printing on Forms or
Checks” or “Validating
and Verifying Checks” in
chapter 2
See “Contacting a Service
Representative” later in
this chapter.
Forms Skew or Catch
Problem What to Do Where to Go
Form or check skewing or
catching in slip station due to an
obstruction or paper jam Open the front cover and check for any paper
jams or obvious obstruction in the slip station.
Clear the obstruction or jammed paper.
Contact a service representative if this does
not resolve the problem. See “Contacting a Service
Representative” later in
this chapter.
MICR Check Reader Not Reading Properly
Problem What to Do Where to Go
MICR (Magnetic Ink Character
Recognition) check reader does
not read or misreads checks Readjust the MICR check reader. See “Adjusting the MICR
Check Reader” in
chapter 4.
The optional Magnetic Ink Character Recognition (MICR) check reader feature has been factory adjusted for a
normal operating environment. However, additional devices, such as CRT monitors, or large metal surfaces
that are near the printer can affect the printer's magnetic field, causing intermittent reading errors when the
MICR check reader is in operation.
This condition can be easily diagnosed by checking the MICR check reader adjustment which allows you to
reset the MICR check reader if the factory setting has been altered by your operating environment. If you have
to adjust the MICR check reader frequently, you may want to move the printer away from metal surfaces or
CRT monitors.