Removing the Case from HP LaserJet M1130 and M1210 series Multifunction printers.
Removing the case covers is necessary to get at the fuser and electronics. Its a fairly major exercise on these small printers.
Note that the case may be / should be marked "No user serviceable parts inside. Authorised service personnel only". Fatal voltages and a laser scanner that could damage human sight are exposed.
This page is intended to help service technicians and end-of-life disposal. A much fuller treatment can be found in HP's M1130/M1210 Service Manual Part Number: CE841-90985
Edition 1, 4/2010. Illustrations here are derived from that document - we think that is a fair use because it helps sell HP Parts and meet their environment policy.
Dissasembly is in the order:input tray, output tray, left side, right side, front-cover, scanner, cartridge door, top cover, rear cover.
Removing the Trays
Remove the input tray by flexing it up at the edges so that the bosses (plastic nubs, tags or axles) pull out of the printer body.
Likewise remove the little flap that serves as a delivery tray.
Modern IT equipment is largely made of plastics partly because the material is relatively cheap but also because its elasticity allows the case to be assembled rapidly in a factory by getting things at the correct angle and pushing them quickly home. The material distorts slightly, then the tab engages.
Disassembly is not so simple; it can be very difficult to guess where the little plastic tabs and hooks are and they are not meant for frequent use. If a printer is dismantled and reasembled several times the tabs wear and break off.
Removing the Left Side
Take the screw out of the left cover at the rear. If the printer is an M1210 any stoppers in the phone- sockets need to be removed as well. Using a flat blade screwdriver displace the plastic tab from its locating hole.
Move the control panel so that it is positioned away from the left side of the printer.
Lift the scanner out of the way as well.
And release the tab on the underside.
(The pictures here show the input tray / door still in place. Its probably less likely to flap around and get damaged if it is removed as shown above. )
Keep the Control Panel towards the left and up, so that it doesn't get in the way.
Likewise with the scanner - avoid it slamming shut and don't get fingers trapped - the scanner on the M1210 series is quite heavy.
Pull the rear of the left panel away from the frame and rotate it down and outwards. There are tabs at the front that release as the cover rotates.
As already suggested some firmness and flexing of the plastic is needed to remove plastic panels.
Removing the Right Side
Take the screw out and release the tab.
Release the tab on the underside.
Rotate the right side away from the rear and upwards a bit. The scanner needs to be lifted out of the way.
Removing the Front Cover
The front cover is held by two big plastic tabs doubling as feet at either side on the front. Push them down and a bit forward to release the cover.
Push the tab /foot down and a bit forward to release the cover. On the left side its under the electronics.
With the bottom tabs released the cover is held by hooks along its top edge so it rotates out and a bit upwards. The Canon LBP6000 manual suggests there are two other tabs about halfway up and HP's pictures seem to show them as well.
Removing The Scanner
Removing the Scanner from an M1130. There is one flat cable rising from the electronics through the case to the scanner. Unplug it.
Removing the scanner from an M1212 (M1210 series). The formatter board here is a bit more complex with a battery backed memory. The scanner cable is accompanied by a thinner cable that carries the ADF signals.
Release the scanner support hinge by pushing the tab. Note that the scanner is not firmly secured when this is done so it needs support to prevent it falling of the rear hinges.
Tilt the scanner all the way back and lift it free from the printer body. At the same time guide the flat cable through the hole.
The LaserJet Professional M1212 (1210 series) has an additional screw near the cable exit holding a ground wire in place. It needs to be released.
Printer Cartridge Door Removal
Removing the cartridge door must be done after removing the scanner - which in turn can be done after removing the sides of the printer. To remove the door push up on the right and left corners to release the retainers. The retainer remains attached to the door at this stage.
The cartridge door is held by a hinge at either side and it is also attached to a "release arm" or "disengement arm". This plastic arm runs down into the cog-chain; when the lid is down it pushes the cartridge drive hub inwards so that the gears, drum and developer in the cartridge turn. When the lid is lifted the hub withdraws so that the cartridge can easily be removed.
The detail of the retainer is shown. The same procedure is used on the left side of the door. When the door is replaced the retainers must be pushed back down so that the cartridge door can close.
Ensure the cartridge release arm is removed.
Disengage both retainers from the door. It then lifts away.
Top Cover Removal
To get at the fuser we still need the top and rear metalwork removing from the printer. The top cover is held by six screws. When they are removed the cover will lift away. The control panel may need unplugging and removing.
Rear Cover Removal
The rear cover is held by four screws.
Note that one of the screws has a star washer which is used to improve grounding, it must go back in the same position. The cover then lifts out from the tab positions.
Also note the position of the plastic brackets which need to be correct when the machine is reassembled.
With all the covers removed parts like the fuser are accessible.
Reassembly involves resersing all the actions here.
Copyright G & J Huskinson & MindMachine Associates Ltd 2013, 2015, 2016. Some pictures derived from HP User and Service guides. These technical pages do not constitute an offer for sale; just our knowledge at the time of writing. See the catalog. Sales pages on this Web site use cookies to store user information. We also use Google Analytics to track site usage patterns.