What does message ch mean? - Sharp AL 1631 Copier

Usually it is best to perform each step as stated in the pattern. Close the Puff stitch (follow the instructions for closing the Puff stitch), then Chain 1.

Perhaps this will help:

How to Crochet Puff Stitch dummies

Crochet Puff Stitch Slow Motion Crochet

Puff Stitch crochet

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I think you mean a dh error code which is a defrost problem either your sensor or heater is bad

CH stands for close hatch check that the front and side doors are closed. (open both then close again)

Believe it or not.... A "CH" means a door is open some where on the copier. The front door or the right side door or the adf door.... Good Luck

Hi,
In all type of sharp copier there is tow type of ch code , if you have blinking ch that mean you have Check the developer unit re insert it probable i, if you have stead CH that mean you have to check the door properly there is an open door .
than you for using fixya

CH steady means cover is open. Close either front or right cover well.
CH blinking means developer unit or toner cartridge not installed. Remove and return well and firmly.

It is the fuser, but sometimes it is just a false code. to reset enter buttons clr, exposure, clr, exposure, the display will blank, enter 14, press prnt button, then clr several times to get out and thats it. -------- if still the same the fusser needs to be get checked and replaced.

D2 is not a fault what that means is delay and 2 refers to CH which means the boiler has gone into standby mode. you need to check that your CH circut is open, there is a filter on the return valve into boiler make sure this is not blocked. If this is blocked the water is just going though the boiler by-pass so then the boiler thinks its up to temp. hope this helps

Hello sir; CH code means somewhere the door open , it seems like right hand side door did not close right.

Actually that means your out of ink. Odd code, but that is what is means.