Appendix A.   Troubleshooting This section provides simple methods for detecting and solving some of the problems
that most frequently occur in printing environments.   If your printer does not print your
job, follow these steps: 1.   Turn the printer off and leave it off for approximately ten seconds.   Turn it back on. This action resets the printer to its programmed configuration and may clear the
error. 2.   Print a sample page to determine whether the problem is with the printer or with the network or cabling leading to the printer.   The printer configuration page can be
used as a sample page; see “Printing the Printer Configuration Page” on page  13
for instructions.   If the problem is with the printer, it is likely that the printer will not
print the configuration page.   If the problem is in the network or cabling leading to
the printer, the configuration page will still print. 3.   Use the service checklist provided in this section to identify and detect problems. 4.   Call your service representative.   If you cannot solve a problem, call your point of purchase or IBM customer technical support (1-800-358-6661 in the U.S.A. and
Canada). Notes: a.   Have your printer serial number ready (it is located on the back of the printer). Also, if you are asked for a machine type, specify 4312. b.   If you need IBM operating system support (for example, AIX, OS/2, OS/400, and MVS), contact IBM software support (1-800-237-5511 in the U.S.A.,
1-800-465-2222 in Canada). Symptom Action A message appears in the
message display area See Appendix  B, “Printer Messages” on page  161. Solid rectangles in the message
display area This usually indicates a problem with the controller card or one of its
options (SIMM or hard drive). Response:   Make sure the SIMMs are in the correct group of sockets and
are installed correctly.   See Chapter  7, “Installing Printer Options” on
page  97 for instructions on installing the optional SIMMs and hard drive. No display messages No message is in the message display area. Response:   The printer may not be turned on or the power cord has
become unplugged.   Press the I on the power switch to power on the
printer.   Make sure the power cord is plugged in. Changed toner cartridge and the
printer does not work You have installed a new toner cartridge and now want to resume printing,
but the printer will not resume printing. Response:   Turn off the printer.   Open the printer and reseat the toner
cartridge.   The printer will not print when the toner cartridge is not seated
correctly. Copyright IBM Corp. 1996, 1997 153