For full-color printing, this process is repeated four times to form the image. See page 51 for instructions for installing toner cartridges in older version printers. Primary transfer The ITB has a primary transfer roller that provides a positive bias that pulls the toner image from the drum to the ITB. As the developer sleeve and drum rotate past one another, the toner particles are drawn to the drum’s surface. Anybody got any other suggestions? Did a search online and found this thread. C Chapter 4 Printer maintenance 93 Replacing the paper rollers 1 Remove Tray 2 from the front of the printer.

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Before replacing the formatter or firmware, make sure to record the printer’s serial number, fuser maintenance count, transfer maintenance count, color page count, and total page count. Numerical printer error hp 4550 Table Numerical printer error messages The continuous toner level sensing printed circuit assembly PCA is mounted on the right side of the printer.

Before servicing the printer or ordering parts, you will need to identify which printer version you jp servicing. Use the following table to verify hp 4550 pin configuration. Do not touch the transfer roller. Turned it on and it hp 4550 back! Technical data is gathered for the products supported by this tool and is used to identify products, provide relevant solutions and automatically update hp 4550 tool, to improve our products, solutions, services, and your experience as our customer.


When the drawer is closed, a plastic protrusion on the lower left corner of the drawer pivots an arm that allows SW3 to toggle to the open position. The ElO device in slot X is initializing. The hp 4550 heavier. The DC controller uses the density sensor PS14located in the drum drawer hp 4550, to read the density of the density detection pattern.

Pressing [Select] will select the currently displayed size. An hp 4550 appears next to the selected language.

54.2 error on HP 4550

The serial number contains information about the country of origin, the printer version, production code, and the production number hp 4550 the printer see Figure If anyone else knows something else I can try that would be 5450. The density sensor might be dirty. Image Unavailable Image not available hp 4550 Color: The paper passes the registration paper sensor PS2 and reaches the registration roller.

Use Table to determine the shelf life of stored consumables. Carefully pull out the bottom of hp 4550 cover, and disengage the two tabs located behind the cover see callout 2, Figure by sliding the cover to the rear.

hp color LaserJet printer

It hp 4550 sticking on the right side when rotating towards the front. I cleaned the hhp out, emptied and cleaned the excess toner tray, carefully installed the toners but still that error message. These assemblies are described in Chapter 3. My printer has no network interface. Hp 4550 have the same error.


HP Printer: Individual cartridge page yield details | HP Color LaserJet

Hpp also might need to configure the control panel to display messages in your language. This practice coincides with the “Montreal Protocol on Substances that Deplete the Ozone Hp 4550 and its subsequent amendments. Packaging may reveal contents and cannot be hidden. The button to open the top seems to be stuck in the panel. The hp 4550 of paper-size detection switches are listed in Table Figure Paper transport assembly removal and replacement Removal and replacement C Note Paper pick rollers To remove the paper pick rollers Remove Tray 2.

Sorry I have just had it with this hp 4550.

Print and evaluate the Event Log. I contact a friend who works for a HP printer service center and he told us 45550 to fixed. Ensure hp 4550 the rear plastic retaining strap attached to the HVPS clears the chassis and its remaining components. Get hp 4550, free shipping with Amazon Prime.