How to Reset Catridge HP 27,28,21 and 22

For 21 and 22 Catridge
Step for both catridge is same

1.Open printer cover,unplug the catridge which want to be resetted

2.Using tape, cover the top pin, at the second rows from the left (No1)

3.Plug in catridge to the printer,close the printer cover . Ignore if there are “Catridge(s) incorrectly installed”
Wait until printer movement stop!!

4.Unplug recenly catridge again, now cover using tape the top second rows pin from the right (no2)

Keep the first pin covered!!!

5.Plug catridge. Wait until stop moving

6.Unplug recent catridge , clean the tape from both pins

7.Plug catridge, its already resetted

For 27 and 28 Catridge
For 27 catridge , the steps is same with above

for 28 catridge At 4th step, pin which covered is diferrent, top pin, first from right .

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HP 4240/4250/4350/4500/4550

HP 4240/4250/4350 Printers:

1. Turn the printer power off and then on
2. When 000MB (beginning of the memory count) appears on the control panel display, press and hold down SELECT (checkmark button). Continue holding down SELECT until all 3 printer control panel lights flash once and then stay on (This may take up to 10 seconds)
3. Release SELECT and press the UP arrow to scroll to NEW MAINTENANCE KIT
4. Press SELECT to reset the maintenance kit counter

HP 4500/4550 Printers:

1. Turn the printer off
2. Hold down the CANCEL JOB and SELECT keys and turn the printer on, then wait until the display goes blank and the three LED's come on
3. Press the right side of the MENU key, then press the SELECT key
4. You will enter SERVICE MODE after the normal test completes
5. Press the ITEM key until the FUSER MAINTENANCE COUNT appears
6. Press VALUE +/- to change to zero
7. Press SELECT to save
8. Press GO; the printer should return to READY

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Resetter for HP 4100MPF/4101MPF/4200/4300

HP 4100MPF/4101MPF Printers:

1. While holding down the START button, turn the printer on
2. The 3 LEDs will blink, and then stay lit (Release START button at this time)
3. Press the UP arrow key. Display will read MAINT COMPLETE
4. Press the CHECK button once, and the maintenance counter is reset
5. Return to ONLINE

HP 4200/4300 Printers:

1. Turn the printer power off
2. Hold down SELECT and turn the printer power on. Continue holding down SELECT for several seconds, until all 3 printer control panel lights flash once, and then remain on (This may take up to 10 seconds)
3. Use the UP arrow key to scroll to NEW MAINTENANCE KIT
4. Press SELECT to reset the maintenance kit counter

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HP 5Si/4000/4050/4100/5000

HP 5Si:

1. Press MENU key 4 times for CONFIG MENU
2. Press ITEM to display SERVICE MESSAGE=OFF
3. Press ENTER
4. Press ONLINE

HP 4000/4050/4100/5000 Printers:

1. Turn the printer off
2. Hold down the left side of the ITEM and VALUE +/- keys, turn the printer on and wait until RESET MAINTENANCE COUNT is displayed and then release the keys

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HP IIISi/4Si Printers

To clear the Maintenance Service Message from the LCD display:

HP IIISi Printers:

1. Press ONLINE until the light goes off
2. Hold down MENU until PCL CONFIG MENU appears
3. Press the MENU key until SERVICE MSG=ON* appears
4. Press the + or - key to change display to SERVICE MSG=OFF
5. Press ENTER/RESET MENU key to turn message off, the * should appear, then press ONLINE

HP 4Si Printers:

1. Press ONLINE until the light goes off
2. Press MENU until CONFIG MENU appears
3. Press the ITEM key until SERVICE MSG=ON* appears
4. Press the + or - key to change display to SERVICE MSG=OFF
5. Press the ENTER key to turn message off, the * should appear, then press ONLINE

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