HP 3500cp Service Manual - Page 316
Elevator Assembly, XĆAxis Assembly, Electronics Module, Power Supply Unit PSU
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Elevator Assembly The Elevator Assembly is located under the Refill Assembly. Its function is to raise and lower the four ink cartridges. The Elevator Assembly is raised and lowered by three cams and a stepper motor. D When the Elevator is in the up position it causes negative air pressure in the Refill Assembly. This has the effect of drawing ink from the ink cartridges into the printheads. D When the Elevator is in the down position the air pressure is stabilized. D The middle position enables the removal and installation of the four ink cartridges. XĆAxis Assembly The XĆaxis assembly is located on the right hand side of the printer and contains a dc motor. This turns the drive roller via a worm drive and a helical gear. Electronics Module Most of the electronics used by the printer are located in the electronics module. This enables the electronics to be repaired by simple removing the whole module, and replacing it with a new one. A new electronics module consists of the following: D Main PCA D Power Supply Unit (PSU) D Cooling Fan Components which are not supplied with a new electronics module but are located inside the module are: D Hard Disk Drive (Only for HP DesignJet 2500CP/3500CP printer) D MIO Ć Supports LAN connectivity D Flash SIMMs (firmware) D RAM SIMMs (memory modules) 10-6 HP DesignJet CP Series printers Functional Overview