Question about Sharp AL-1642CS Copier

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Error Code H4 for Sharp AL-1642CS

I have used this unit only as a copier. It was never connected to a computer in its entire life (bought brand new from Staples less than a year and a half ago). Where are the buttons you mentioned in your solution? "P, interupt, clear, interupt". Are they on the unit or are you talking about buttons on the compter keyboard or something on the monitor screen that you can click on IF the unit is connected to a computer?
Finally, how do you change the "fuser unit"? What is it? Is it same as the drum? If not, can it be done by the owner (me) or does it require a service person? Where can you buy a new fuser unit (if it's not the drum)?

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Ola galera tenho uma maquina de xerox sharp al1642cs ela esta dando um erro h4 e eu não sei oque causou isso se alguem tiver uma solução e pode me ajuda agradesso po me manda um emeil

Posted on Sep 10, 2009

  • adriano_fura Sep 10, 2009

    ola galera tenho uma maquina de xerox sharp al1642cs ela esta dando um
    erro h4 e eu não sei oque causou isso se alguem tiver uma solução e
    pode me ajuda agradesso po me manda um emeil


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`the fuser is not the drum it the heating assembly from where the copy finally comes out of the machine . the buttons you must press in sequence are these: # , interrupt, C, interrupt then enter the no. 14 , then presss the green start button.

all these buttons are on the machine keyboard nothing to do with the computer.

Posted on May 08, 2008


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Related Questions:

1 Answer

How ot fix H4 error on a sharp AL-1642CS

c-photo-c-photo press 14 press print key

Jul 11, 2014 | Sharp AL-1642CS Copier

1 Answer

How can you fix a flashing light H4?

Hi, this applies to fuser unit heating problem. Please check this unit for the following then cancel the error code in the sequence to be given after.
  • Open this unit and check for continuity of the thermostat. This is a small two connector round component with a protrusion at the center. Press that inside and check for its continuity.
  • Measure the continuity of heater lamp by removing its the big connector with two terminals on the main board.
  • If the above is okay, then press keys in this sequence, C- Auto- C- Auto and enter 14 and press copy key.
Happy new year.

Jan 04, 2011 | Sharp AL-1642CS Copier

3 Answers

H 4 code flashing

The H4 code indicates the fuser may have blown the thermistor. It also could be a false error code. Try this series to clear the error and if it returns, then you'll know for sure the fuser is the culprit. To reset press the following buttons:
  1. Press this sequence: CLR-Exposure-CLR-Exposure
  2. The display will go blank
  3. enter "14", press "PRNT"
  4. Press "CLR" several times to exit.
Give that a try and good luck.

Feb 18, 2010 | Sharp AL 1631 Copier

1 Answer

Error code h4 on sharp al-1642cs

I have a solution for this posted in the tips section. Just search for Sharp AL H4

Jan 16, 2010 | Sharp AL-1642CS Copier

2 Answers

Error code H4 on Sharp AL-1641CS?

Usually a flase code on these models. Try clearing by pressing "C" then far left key (Exposure Mode) then "C" then far left again. Must be pressed quickly and if done correctly display will go blank. Then key in 14 as if making 14 copies. Then press Print.
Short Version: C, far left, C, far left, 14, print
If code returns then you have a fusing unit problem but 9 times out of 10 this is just a false code.
Good Luck

Dec 23, 2009 | Sharp AL-1642CS Copier

3 Answers

Error code L 1

probally little switch on "ceiling of where paper exits has been bumped locking lens, please rate as fixya or reply

Dec 27, 2007 | Sharp AL-1642CS Copier

4 Answers

Sharp copier AL-1642CS

Here is what worked for me.
You need to alternate pressing the clear button then one of the auto buttons until the display lights turn off.

First press the clear button (red letter “C” on the unit) then the auto button. (below the word auto there are 3 buttons. Press the one on the far left that has no other markings on it. This will only take 2 or 3 times back and forth.

When the display is blank enter the number 14 (like you were making 14 copies of something) then press the Green (start?) button. Let the copier warm up about 30 seconds and try making a copy.

It worked for me. Still having trouble call Sharp USA 630-378-3590 or Canada 905-568-7140. They were quick and helpful

Nov 07, 2007 | Sharp AL-1642CS Copier

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