Paper Jams

Paper Jams Paper jams probably generate most of my service calls. I have a few suggestions users can try that may help. FIRST: When removing a jam, always pull out the paper very slowly and uniformly. Use both hands to distribute the force. If you tear the paper by...

Half Tests

Half Tests On my first blog, I discussed image defects caused by Imaging Units. If you are sure or at least suspect the IU is not at fault and don’t have another IU to check it.  Performing a half test is the way to find out. When a laser printer creates a print, the...

Image Defects in Black and White Printers and Copiers

Image Defects in Black and White Printers and Copiers I get a lot of calls from customers who have image defects on their laser printers and copiers.  After about 20 years of experience servicing lasers there is one thing true about 95% of the time: It’s the imaging...