Where is DC controller of HP 2820 located? - HP Office Equipment & Supplies

Refix connector J127 on dc, clean the supply memory contact,switch on the machine remove all supplies, install one by one, check the recognition of supply status, missing all? replace DC controller, only black missing?Replace with another one,check, remain same, observe cartridge seated properly? compare with another cartridge feels difference? check the supply memory properly connecting to the contacts?..any breakage in corosol unit?..replace the corosol..

59.99-T2 Clutch error:
Check the cable connections to the DC controller. If the error persists, remove the imaging drum and
check the clutch. If the error persists, replace the T2 clutch. If the error still persists, replace the DC controller.

57 (or 57.1) SERVICE Message (Main Motor Failure)
The 57 SERVICE indicates that the DC Controller PCA detected a
general motor failure. The Main Motor drives all moving
components in the printing process. The Main Motor is a 4-phase,
DC servo motor controlled by the DC Controller PCA.
The formatter detects a Main Motor failure when:
• The Main Motor does not come up to speed within one second
of receiving drive voltage.
• The Main Motor deviates from the correct speed for one second
after reaching the correct speed.
Main Motor Functional Checks
• Inspect the gear train for debris that would block the free
operation of the gears.
• Check the gears in the Toner Cartridge for wear and binding.
• Reseat J211 (or J214 on the HP LaserJet 4 Plus/4M Plus) on
the DC Controller PCA, and the main connector on the Main
Motor Assembly. Refer to Figures 7-16 and 7-17 for the DC
Controller PCA connector locations.
• If the problem persists, check that the +24B Voltage is present
on the DC Controller. If the voltage is not present, replace the
DC Controller. If the voltage is present, and the motor does
not rotate, replace the Main Motor Assembly (see Figure 7-11
for location).

59.4-Fuser motor error: Verify that thefuser is seated completely.
If the error persists, replace the fuser motor.
If the error still persists, replace the DC controller

this error comes when the printer not reco the cairtages & drum if u replaced the print cairtages then replace the drum & calibrate the printer & restore the factory default.

Hi Tom,

If your fridge quit working altogether, check your DC fuses in the fuse box, as well as the back of the fridge under the black plastic cover (3 amp). Though the fridge uses LP and 120vac to cool, it is controlled by 12 volts.

Hp says you have a bad scanner unit(laser unit) or DC controller, but first reseat all your connectors on your scanner unit(laser) and DC controller. Your scanner is located under the top cover and the DC controller is located behind the right cover. If the problem still persist replace the scanner first.

Remove the left cover.
2 Disconnect all cable connections (19 connectors for the HP Color LaserJet 3500 series printer and 20 connectors for the HP Color LaserJet 3700 series printer).
3 Remove four screws (1) and remove the PCB (2).

Need to order a replacement FUSER it's located in the rear of the printer. If you live in the USA you need 110V if you're in Euro 220V see below for the part number you need to order.

RG5-7602-000
RG5-7603-000
Fuser ***'y, 110V, CLJ 2820/2840
Fuser ***'y, 220V, CLJ 2820/2840
CLJ 2820/2840

Does it work with this error....if so you wanna
make sure that you have a HP cartridge, sometime the chipset is not recongnize....and you have some function that doesn't work. If you try all this, call HP.