San Francisco Computer
Corporate Laser Printer Maintenance Agreements
Preventative Maintenance Program
is What We do During a Preventative Maintenance Visit:
– We check fans and ambient noise levels. We choose to replace noisy fans
instead of lubricating them. This is done because heat may have also damaged the
integrity of the windings within the fan motor. A bad fan can cause excessive
heat, damaging sensitive electronic circuitry. Loose screws can cause
noise, dropping into the mechanism as they completely free themselves,
so we make sure that screws are always tightened after parts are replaced. In
addition, we will advise you of potential damage due to location of printers and
over-all room temperature.
– We check the fuser / fixing assembly. Fusers melt the toner to the paper,
thus ‘fixing’ it. We check the fuser and fuser wand to excessive toner
build-up. Changing the wand whenever you replace the toner cartridge will
greatly extend the life of the fuser. If the fuser is bad, or excessive wear is
noted, we choose to replace the fuser entirely and not just replace parts. This
greatly reduces down time and a factory replacement contains all new parts, not
just a replacement of the defective ones.
- Print quality is what every user expects to be perfect. If imperfections are
noticed, we will identify the problem and correct it by replacing necessary
parts. If a defective cartridge is to blame, we will notify your staff as to the
nature of the cartridge defect.
– We check input and output trays for excessive wear. Input and output trays
are often neglected when servicing laser printers. Simple cleaning goes a long
way in preventing a tray failure.
– We clean and refurbish pickup and transfer rollers. Using patented
chemicals, we often extend the life of the rollers in your printers. This reduces
down time as well by contributing to overall lower maintenance costs overall. If
excessive wear or hardness is noted, we always replace pickup rollers or exit
rollers with factory new assemblies. Separation pads are always examined and
usually replaced. These are often made of cork and help insure that just one
piece of paper is picked up at a time.
– We keep corona wires clean. Dirty corona wires often cause imperfections in
print quality. Cleaning the corona wires takes very little time, but can
improve print quality dramatically. Corona wires are often contained within the
toner cartridge and are extremely delicate. Please be careful if you choose to
do this yourself!
Optical Assemblies – We help keep lenses clean. Depending on the laser printer, lenses
can be exposed to environmental pollutants and can create print quality
problems. When practical, we clean these lenses to insure the best print quality
with EPA approved compressed gases. If serious print quality is caused due to
contaminants in a sealed laser scanner assembly, the assembly is replaced with
one that is either factory cleaned, refurbished, or a completely new one. Internal mirrors
contained in these scanners takes some time to get to, so it is almost always
faster to replace the assembly than to clean the mirrors in the field.
– We will lubricate necessary gears and mechanisms. Noise during printing can
be reduced by lubricating critical parts. In addition, some manufacturers
recommend lubricating drive gear clusters. We use factory recommended lubricants
whenever possible. When lubrication is recommended and no particular lubricant
is specified, we use patented lubricants of a viscosity we familiar with to have the most
positive effect on the gear mechanisms.
Air Filters – We will replace badly clogged ozone filters. Ozone filters collect a lot of dust and excessive heat can develop within the printer. Our technicians will replace and show your staff where these filters are and how easily they are to replace.
Toner Spills – We check toner cartridges when we see toner spills. Toner spills can cause poor print quality and electrical shorts. Our technicians use 3M brand vacuum cleaners that contain toner quality micro filters to insure OSHA standards are maintained within your facilities. Although sensors are normally cleaned during standard preventative maintenance, special attention is placed on cleaning sensors and optics with EPA approved compressed gas whenever toner spills are cleaned up.
About our Technicians - Our technicians are factory authorized and carry a minimum of 2 years
experience. In addition, they are required to have both an extensive electronics
background and computers and networking experience.
San Francisco Computer Repair is proud to be an Elite Service Center for Brother, Canon, Hewlett Packard, Okidata, QMS-Minolta, IBM, Printronix, Panasonic, and many others. We carry a complete stock of parts for these printers and our 95% customer satisfaction rating with Canon is one of the highest in the country. Canon based engines are in 90% of the laser printers sold by Hewlett Packard and other manufacturers and, out of 10,279 complaints of poor service reported to the Bay Area Better Business Bureau in the last year, our company received none! It is no wonder that many companies call us the best-kept secret among the San Francisco area repair businesses. So when it comes to repairing or buying a printer, rest assured we do it right the first time.