HP 4550 Service Manual - Page 232

Table 7-3 Numerical printer error messages (continued) 49 ADAC or AFAC Description: Action: Indicates that the printer is printing a PostScript file No action required. using Windows 3.1 or 9x. 49 FF01 to FF05 Description: An NEC firmware ROM error has occurred. 49 FF02 Action: Replace the firmware. Description: Unsupported EDO memory has been installed. 49 04CC Action: Remove unsupported memory. Description: Indicates a media timing issue. This occurs when printing multiple copies of transparencies or heavy or glossy media with either the PCL or PostScript drivers. Or it could indicate a timing mismatch between the engine and formatter. 49 04E7 Description: Occurs during decompression of the strip buffers when the end of the strip marker is missing. This is triggered by one of the following: 1) Marker is corrupt; 2) Strip buffer size given to HiLite is too small; 3) Strip buffer size given is too large. Note This error is primarily associated with the firmware and should not require a new formatter. 49 04FF Description: A large print job (800 to 1200 pages) or complex graphics can cause the printer to quit printing. Action: Two courses of actions are available:
Determine the page that is causing the failure. If there is an image on the page, try to move the image down on a portrait page or left on a landscape page to move the image out of the strip that is failing. The movements will need to be very small so as not to cause the next strip to fail.
Put the printer in Lossy mode with a sequence of PJL commands. (Lossy compression is the process of compressing a file such that some data is lost after the file is compressed and decompressed.) Use the following series of commands to put the printer into Lossy mode: ESC%-12345X@PJL @PJL Default Service mode=HPBOISEID @PJL Default Diagnostics=ON @PJL Enter Language = PCL ESC%-12345X@PJL Esc*z9999P Esc*z50P Esc*z201X (Continued on next page) 230 Troubleshooting C7085-90921