HP 4550 Service Manual - Page 291

Note Row 1: Paper size Note For rows one to three, the page count is incremented after every ten pages. Row four is incremented after every end of page. Rows one to four are counted through the engine. Rows five and six are driver requests. The tray count is incremented based on the tray that is selected by the firmware, not the tray that is selected by the user. Media size count is incremented based on the media size that is selected by the user. Media type count is incremented based on 1) the media type that is selected by the user when the media is pulled from tray 1; and 2) the media type configured on the tray when media is pulled from tray 2 or tray 3. Fuse mode count is incremented twice for duplexed sheets, once when the front side is fused and once when the back side is fused. 14 Calibration density settings-On the bottom row of text, there are four separate blocks of numbers. The first block is for cyan, second for magenta, third for yellow, and the last is for black. Make sure the numbers are not near zero (if so, no calibration was done). Do not print the configuration page until the printer is ready or calibration will not occur. C7085-90921 Chapter 7 Troubleshooting 289