HP 1050c Service Manual - Page 138

Service Calibrations NOTE WARNING 8. Pen Alignment The purpose of this Service Calibration is to correct the alignment between the Printheads. This calibration is necessary in order to prevent color misalignment and print quality defects like banding. Perform the Printhead Alignment Calibration whenever: n Carriage is disassembled or replaced. n Tubes System is disassembled or replaced. n Banding is detected in prints. n Misalignment between colors is detected n Electronics Module is replaced. Perform the Pen Alignment Calibration as follows: Make sure you load media before performing this calibration. Do NOT use Clear Film, Vellum or Natural Tracing Paper. 1 In the Service Calibrations submenu, scroll to "8. Pen Alignment" and press Enter. Service Calibrations 4. Roller mark position... 5. Pen to Paper Spacing... 6. Color to Color cal... 7. Calibrations backup... 8. Pen Alignment... 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 Calibration, or select CANCEL if you want to cancel the it. Press Enter once the selection has been made. 8. Pen Alignment Accept Cancel Top Back ↑ Make Selection ↓ Enter Press Enter 5-22 HP DesignJets 1050C and 1055CM Printers Service Manual