Electrostatic discharge (ESD)
Intermittent problems can also be caused by build up of electrostatic charge on the forms or bad electrostatic
ground (ESD) connections. If you suspect the forms, contact level 2 support for guidance. If you suspect the
problem is caused by a bad ground, perform the following check, perform Ground connectors check.
Set the meter to the lowest resistance scale and measure for 0.1 ohms or less between the ground pin of the
power cord and the following parts:
Attachment
Ensure that the printer is not operated with loop-back connectors installed.
Refer to the signal cable ordering information in the
IBM 4247 Model V03: User’s Guide, for attachment cable
configurations.
Environmental requirements
See Environmental requirements.
Miscellaneous
Check for lost screws under the power supply or under the logic board.
Chapter 1. Diagnosing problems
76
Содержание 4247-V03
Страница 24: ...Reference table 8 ribbon lift and 26 pin cable connectors 93 Chapter 1 Diagnosing problems 24 ...
Страница 138: ...Operator panel cable wiring Chapter 3 Wiring diagrams 138 ...
Страница 144: ...Tractor assembly cable wiring Chapter 3 Wiring diagrams 144 ...
Страница 164: ...Chapter 5 Removals service checks and adjustments 164 ...
Страница 173: ...Table 24 Print quality sample 1 2 3 Chapter 5 Removals service checks and adjustments 173 ...
Страница 246: ...Assemblies Chapter 6 Parts catalog 246 ...
Страница 307: ...Taiwanese EMC Notices 307 ...
Страница 310: ...Index Copyright IBM Corp 2002 310 ...
Страница 311: ...IBMR Part Number 75P1301 Printed in U S A G544 5873 00 1P P N 75P1301 ...