Using the control panel Control panel The printer control panel has only two buttons: J OB C ANCEL and G O . See figure 16. Pressing one of these buttons or a combination of the two does the following: cancels print jobs resumes printing when the printer is paused prints a demo page or a self test/configuration page initiates a continuous self test performs a cold reset or a nonvolatile random access memory (NVRAM) initialization reveals secondary information (for example, light messages) Other printer configurations must be performed using printer job language (PJL) commands or the LaserJet configuration utility. See “Service mode” on page 52.
J OB C ANCEL button Attention light Ready light Go light G O button Figure 16. Control panel layout Control panel lights The control panel lights provide both status and error messages by using distinct light patterns. See "Troubleshooting with control-panel messages" in chapter 7. Job Cancel Press J OB C ANCEL to cancel a job the printer is currently printing. The control panel lights will cycle while the print job is cleared from both the printer and the computer, and then return to the ready state (Ready light on). This can take some time, depending on the size of the print job. If J OB C ANCEL is accidentally pushed, the job must be reprinted. There is no undo function.
If J OB C ANCEL is pushed when the printer is idle nothing happens. Go Press G O to resume printing when the printer is paused or when unprinted data is still in the printer. Press G O to clear particular printer errors. Press G O to print a demo page. The printer must be in the ready state (Ready light on). To identify and troubleshoot control panel light messages, see "Troubleshooting with control-panel messages" in chapter 7. 44 Chapter 3 Printer configuration C7058-90936