Question about Sharp AL 1631 Copier

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Copy Quality Problem

Hi There, I have Sharp AL 1631 and it is almost brand new... I just used up factory supplied Toner and put a new one genuine Sharp. Copies are blur and not "sharp" it almost looks like they are not focused. I also replaced drum cartridge in case it was a problem... did not help. Cleaned also Transfer Charger - no change. Got back to old Toner cartridge but did not make any difference.... Any idea what that may be? Thanks, Greg B.

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Re: Copy Quality Problem - Sharp AL 1631 Copier Printers & Copiers

Limpia el lasser

Posted on May 24, 2007

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1 Answer


Sounds like not coming to ready....Probably fuser issue. Themistor, lamp, thermofuse.

Apr 06, 2010 | Sharp AL 1631 Copier

2 Answers

Sharp al1631 copier, copys are too Dim settings don't help ?

Check the toner supply, it may be running out of toner. Check the bottle or cartridge for correct install. Turn the machine on and let it warm up, Recheck the copy quality. If it is still light run a dozen blank copies, then a test copy if it is improving the toner is depleted and need to catch up, if it isn't there may be a problem with the toner add system.

Hope this is of some help.

Apr 27, 2009 | Sharp AL 1631 Copier

1 Answer

Sharp al-1631 copier wont copy

It probably the toner cartrisge is empty or if there's an error code H4, the heater lamp is spoiled

Apr 02, 2009 | Sharp AL 1631 Copier

1 Answer

Sharp AL 1631 ---- Getting blank copies

Hi, you can stop a copy half way to see if it image is on the on the drum if not check and make sure toner unit is turning. if not main charge. thanks dale.

Jan 22, 2009 | Sharp AL 1631 Copier

1 Answer

Copy quality is poor. Replace toner, drum and transformer?

when you say the quality of the text is poor I am assuming that your are describing the line print


IF FUZZY remove corona wire and clean with q tip diped in alcohol

If IMAGE OFFSET check fuser rollers emove pad and ad fuser oil

IF copies lite remove print cartridge and shake back and forth to get toner distributed
also examine photoreceptor sounds the shutter is not closing and causing image distortment

Jan 05, 2009 | Sharp AL 1631 Copier

1 Answer

Sharp AL-1631 coper - toner problem

the problem in your machine is on the drum unit there is a arching on the mc unit.located in the upper portion of the drum unit.if you have an old drum unit try to install it again just for testing.and check if ther is a dumping toner again.

Nov 05, 2008 | Sharp AL 1631 Copier

2 Answers

Sharp AL-1631 copies very light at top only

Main thing is to absolutely use genuine Sharp toner and drum supplies. After that,probably lamp is not responding are activating quickly enough. Caused by main board or high voltage power supply.

Aug 14, 2007 | Sharp AL 1631 Copier

1 Answer

Copy quality always light

Are you using a genuine OEM Sharp toner and drum? The paper pick-up rollers could use a good cleaning. Try a little WD 40 on a cotton cloth and clean the d shaped rollers. Also the feed clutch could be sticking. You have to take the back covers off to see the clutch. Clean and put some light grease on it. Easy parts to order and not expensive.

Aug 02, 2007 | Sharp AL 1631 Copier

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