Microsoft KB Archive/64481

OS/2 LAN Manager: HP LaserJet “02 WARMING UP” State Problem ID Number: Q64481

1.01 2.00 OS/2

Summary:

Microsoft has confirmed that the following problem occurs in OS/2 LAN Manager versions 1.01 and 2.00. We are researching this problem and will post new information here as it becomes available.

Power cycling an HP LaserJet printer while jobs are in the print queue may result in the printer staying in the “02 Warming Up” state and not printing anything out. The printer will remain in this state until one of the following is done to the computer attached to the HP LaserJet printer (print server):


 * 1) Unplug the printer cable. The printer will go to the “Ready” state, at which point the cable can be plugged back in. All “offline” jobs will have to be restarted on the print server.
 * 2) Delete all the jobs in the print queue, and reboot the print server.

More Information:

When starting up the print server, its printer driver will bring pin #1 (STROBE signal, straight through connection on the printer cable) on the parallel port from a low voltage level to a high voltage level. In order to properly finish its initialization routines, the HP LaserJet needs to have a low voltage level on pin #1. If a stable high voltage level is present on that pin, the message “02 Warming Up” is displayed. This message will continue to be displayed until a low level voltage on pin #1 is present. Therefore, if an HP LaserJet is turned off and on while attached to a print server already running, the HP LaserJet will stay in the “02 Warming Up” state, and will not print anything out.