Axiohm 7156 Especificações descarregar pdf (Página 22)

14 Chapter 2: Troubleshooting

J17A MICR

Buckhead

J17B MICR

Readhead

• If the test result is not “NO MICR CHARACTERS,” either the

amplifier board or the control board is faulty. In single-board

printers, the board is a combination amplifier/control board. For

dual-board printers the MICR amplifier is a separate board behind

the cantilever. (The problem may be the interconnect harness

between the two boards in the dual-board system; check to confirm

that the harness is properly plugged in.) Replace the board

containing the MICR amplifier. For more information, 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.

Read head Contact and Movement: Mechanical Problems

An unacceptable MICR read rate; failure rate is greater than 1%; or a

catastrophic read problem such as “NO MICR CHARACTERS” or

mostly garbage may indicate faulty read head movement or a lack of

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