Call in Walsall: HP 5500 Designjet Replace printhead error code 0021

9th September 2010

1st Call 4 Service called into an HP 5500 42″ Designjet printer with an air leak in the yellow line of the tube system, causing air entering the printhead which is not recoverable.  NB. if you get air in the tube system you can recover, then replace the printhead.

Serviced printer, replaced Line Sensor and Tube System with new parts.

Customer called me to get the printer up and running due to deadline on job and had no yellow printhead, so found a solution by using one of the other printhead colours! I used light magenta in this case which was still in good condition.

The way we used this on the yellow was to take off the tabs which let you insert the light magenta into the yellow channel, took the chip strip information from the yellow printhead which is located at the back of the printhead just above the connector strip, this is stuck on with double sided tape, just please take care to take it off then fit it to the other printhead. When you fit into printer you will find that when printing yellow you will get the wrong colour in this case we got light magenta! printed about 10 meters of yellow and the light magenta changed from that to yellow.  Called customer following day to check if the job got out on time? YES! and was very happy.


Welcome to 1st Call 4 Service HP Designjet Wide Format Digital Blog site. We provid Sales - Maintenance - Servicing and Repair 1st Call 4 Service are based in Birmingham, Midlands providing a UK-wide servicing company specialising in the repair, serviced and maintenance of digital large format printers. We were established in 2003 and have grown to become a brand synonymous with affordability and professional service. As part of our ongoing commitment we have now created a new website to provide our existing customers and new prospects a highly informative website enabling you to get the best possible solution at an affordable price. Sale: Designjet printers - Consumables - inks - Media
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