HP DesignJet T2600 User Guide - Page 233
Clean the printhead, Printheads, Clean all, Clean MK-Y, Clean C-M-PK-G
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2. Clean the electrical connections on the backside of the printhead with a lint-free cloth. If moisture is needed to remove residue, do not use water-based cleaners in the electrical contacts: such cleaners may damage electrical circuits. In some locations the use of cleaner products is regulated. Ensure that your cleaner follows federal, state, and local regulations. CAUTION: This is a delicate process and may damage the printhead. Do not touch the nozzles on the bottom side of the printhead, especially not with any alcohol. 3. Reinsert the printhead, see Insert the printhead on page 173. 4. Check the front-panel display message. If the problem remains, try a new printhead. Clean the printhead As long as the printer is kept turned on, automatic cleaning is performed periodically. This ensures there is fresh ink in the nozzles and prevents nozzle clogs, thus preserving print quality. If you have print quality problems, please see Image Diagnostics Print on page 219 before proceeding. To clean the printhead, go to the front panel and tap , then Printheads, and select the color group including the color that needs cleaning (Clean all, Clean MK-Y, Clean C-M-PK-G). Align the printhead Precise printhead alignment is essential for accurate colors, smooth color transitions, and sharp edges in graphical elements. Your printer has an automatic printhead alignment process which runs whenever the printhead has been accessed or replaced. You may need to align the printhead after a paper jam or if you are experiencing print-quality problems. 1. Load the paper you wish to use, see Paper handling on page 40. You can use a roll or a cut sheet; plain white paper is recommended. CAUTION: Do not use transparent or semi-transparent paper to align the printhead. HP recommends plain or bond paper. 2. Ensure that the scanner is lowered, as a strong light source near the printer during printhead realignment can affect alignment. 3. From the front panel, tap , then Align printheads. ENWW Clean the printhead 225