HP Designjet 250c Service Manual - Page 138

Otherwise, if the plotter is using firmware from the inbuilt ROM the following will occur: 230 250C The LEDs light up one by one as follows, until eight LEDs are on. This happens three times. 330 350C The LEDs light up one by one as follows, until all nine LEDs are on. This happens several times throughout the initialization procedure. 230 250C 3 The frontĆpanel LEDs indicate the current selections for Media Type and Print Quality. 4 The cartridge carriage moves across the plotter and knocks three times against the rightĆhand side. 5 The carriage returns to the leftĆhand side and enters the service station. The bail jerks slightly as the carriage parks in the service station. 6 The top of the drive roller rotates slightly forward and then slightly backward. 7 The carriage moves out of, and back into, the service station. Again, the bail jerks slightly as the carriage parks in the service station. 8 The plotter ejects any sheet that is already loaded. 330 350C Does not eject roll media if loaded. 8Ć4 Troubleshooting C4699Ć90000