HP 1050c Service Manual - Page 129

NOTE Service Calibrations 4. Roller Mark Position The purpose of this Service Calibration is to calibrate the Mark Encoder which is located on the Drive Roller. Perform the Roller Mark Position Calibration whenever: n Carriage is disassembled or replaced. Perform the Roller Mark Position Calibration as follows: Make sure that you unload the media from the Printer before performing this calibration. 1 In the Service Calibrations submenu, scroll to "4. Roller mark position" and press Enter. Service Calibrations 1. Accuracy cal... 2. Line sensor cal... 3. Service station... 4. Roller mark position... 5. Pen to Paper Spacing... Top Back ↑ Make Selection ↓ Enter Press Enter 2 The following message will appear asking you to confirm the operation. Select ACCEPT if you want to continue the Roller Mark Position Calibration, or select CANCEL if you want to cancel the it. Press Enter once the selection has been made. 4. Roller Mark Position Accept Cancel Top Back ↑ Make Selection ↓ Enter Press Enter 3 If you selected to continue, the calibration will start and the following message will appear on the front panel: Performing roller mark calibration Please wait HP DesignJets 1050C and 1055CM Printers Service Manual 5-13