Oki B6100 User Manual page 105

Printer Operates Erratically
The following characteristics define this type of problem:
The printer does not function correctly.
The printer may go into frequent warm-up.
The control panel may display garbled characters.
The printer may lose power or stop printing for no apparent reason.
The control panel does not display an error code.
The following procedure guides you through multiple actions that may solve this problem. Pro-
ceed one step at a time until the problem is solved. You may not need to complete the entire pro-
cedure. If one of the steps in this procedure corrects the problem but the identical problem
returns in less than 50 prints, call for service.
1. Check to make sure the AC power cord is firmly connected to the AC wall outlet and that
the other end of the AC power cord is firmly connected to the printer.
A loose or partially connected AC power cord may cause erratic operation. If the AC
power cord is repeatedly loose or disconnected, you may consider moving the printer to a
safer location. If the AC wall outlet is broken, allowing the power cord to easily fall out,
replace the outlet.
2. Check to make sure the computer interface cable is firmly connected to the printer and
that the other end of the cable is firmly connected to the computer.
There may be a bad connection between the printer and the computer. Reconnecting both
ends should reestablish a more reliable electrical connection. If you have another interface
cable available, substitute the new cable for the one currently connecting the printer and
computer.
3. Open and then firmly close all printer doors and covers.
Interlock switches monitor the position of printer doors and covers for safety reasons.
When a door is closed, the interlock switch is activated and the printer can operate. When
a door is open, the interlock switch is not activated and the printer cannot operate. If a
door is not firmly closed, the interlock switch can bounce between being activated and
being not activated—confusing the system and causing erratic printer operation.
4. Reinstall the printer driver software.
The printer driver software that is running on the host computer may be damaged. Rein-
stalling the software is an easy and inexpensive way to isolate or eliminate the problem.
Refer to the Installation Guide for instructions on installing the driver.
5. Unplug the AC power cord from the AC wall outlet. Plug a 100 watt lamp into the AC
wall outlet and watch the lamp for 30 minutes. If the lamp flickers noticeably or dims then
brightens, you should replace the outlet or have an electrician check the line.
Voltage surges or drops at the AC wall outlet can cause sensitive printer components to
function erratically. In some instances wide voltage swings can seriously damage the
printer.
6. Call your service technician.
This problem may be caused by a malfunctioning or broken component that requires ser-
vice.
Oct 02
Oki B6100 User Guide
Miscellaneous Problems
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