Phaser 3635
Phaser 3635MFP & WorkCentre 3550
Now here are a pair of monochrome multifunction printer / copiers which have been extremely good sellers for Xerox®. Each sold for around $1700 new with a one year warranty. There are tons of them to be found out in the market and coming off of leases. We took a look at the fusers in an ENX article back in March of 2013. This month, let’s check out the supply items, dive into the fault code meanings and touch on the basics of how to get into the Admin Tools and then the Diagnostic Mode.
These machines use an all-in-one type of print cartridge (the toner, development, drum, and waste are all handled in one cartridge). Below is a table showing the U.S. market region cartridges.
Print Cartridges:
| Model | Part # in U.S. | Stated Yield | Retail $ |
| Phaser 3635 | 108R00793 | 5 K pages | $129.99 |
| Phaser 3635 | 108R00795 | 10 K pages | $189.99 |
| WC-3550 | 106R01528 | 5 K pages | $134.99 |
| WC-3550 | 106R01530 | 11 K pages | $199.99 |
The two models share the same fuser modules with a few valid part numbers for the 110 volt fusers: 126N326, 126N291, or 126N342. An online search for these turns up prices ranging from $175 to $250. In the March 2013 issue of ENX, we took one of these fusers apart to see how to rebuild them. We’ll re-visit how to reset the fuser count later in this article, just after the list of fault codes.
The fault codes are consistent when you compare the Phaser 3635 to the WC-3550. Here is a list of the codes with some info about each:
| Fault Code | Meaning of Code: | Notes: |
| 01-100 | Front Door Open | Check the actuator on the front door. The Interlock Switch is mounted on the HVPS. |
| 01-110 | Fuser Door Open | Open the rear door and then the fuser door, which is part of the fuser. See that door opens and closes ok and that the actuator flag on that door is ok. The switch itself is mounted on the HVPS. |
| 01-700 | Stapler Door Open | |
| 02-100, 02-200 | USB Faults | |
| 03-200, 03-210, 03-220, 03-230, 03-240, 03-250 | MSOK Faults (Master System Options Key) | The MSOK is a tiny board (less than 1×1 inch), with a connector mounted directly on the Main Board. |
| 03-300, 03-310, 03-320, 03-330, 03-340 | FEK / PEK Faults (Feature / Product Enablement Key) | Each new machine comes with a plastic card-like key that is used to set up any optional features that were purchased with the machine. Usually this key is kept in the cabinet of the machine or in the paper tray someplace. |
| 03-410, 03-411, 03-412 | Tray 1 Paper Info Mismatch | |
| 03-420, 03-421, 03-422 | Tray 2 Paper Info Mismatch | |
| 03-450 | Bypass Tray Paper Info Mismatch | |
| 03-510, 03-520, 03-558, 03-559 | Foreign Device Interface Fault | |
| 03-600 | Memory Failure | Check the memory DIMM on the main board. |
| 03-800 | Check Hard Disk Drive (HDD) | |
| 03-900 | Main Board to Control Panel (GUI) Communications Fault | |
| 03-940 | Main Board to Tray 2 Communications Fault | |
| 03-970 | Main Board Detected a Software Lockup | If turning the machine off and back on doesn’t do the trick, reload the firmware. |
| 05-100 | Document Jam 1 | Document jam after registration |
| 05-500 | Document Door Opened during a copy job | |
| 05-600 | Document detected in feeder at power-on | |
| 05-700 | Document too long (oversized original detected) | If the originals are normal size, then most likely the transport rolls or drives are slipping during copying so that the machine thinks the doc feed sensor remained actuated too long. |
| 05-900 | Document Feed Jam | |
| 05-920 | Document Door Open | |
| 06-100, 06-200 | Laser Unit (LSU) Error | Check the Laser Unit Interlock Switch Actuator which is on the print cartridge. |
| 07-110 | Paper Tray 1 Empty | Check the Tray 1 Paper Present Actuator |
| 07-130 | Tray 1 Misfeed | The registration sensor did not see the paper arrive from Tray 1. Note that the sensor is mounted on the HVPS. |
| 07-210 | Paper Tray 2 Empty | Check the Tray 2 Paper Present Actuator. |
| 07-230 | Tray 2 Misfeed | The registration sensor did not see the paper arrive from Tray 2. Note that this sensor is mounted on the HVPS. |
| 07-231 | Paper detected at Tray 2 Feed Area at power on | |
| 07-500 | Bypass Tray Empty | |
| 07-530 | Bypass Tray Misfeed | |
| 08-100 | Paper Jam between Registration and Fuser Exit Sensor | |
| 08-200 | Jam in Tray 2 feed area | Same meaning as 07-230 fault. |
| 08-500 | Exit Jam 2 (Paper not seen leaving the Exit Sensor) | Check the Fuser Exit Actuator for binding. |
| 08-600 | Bottom Duplex Jam 0 | Duplexed paper failed to reach the Duplex Jam Sensor in time. Note that this sensor is mounted on the HVPS. |
| 08-610 | Top Duplex Jam 1 | Duplexed paper failed to reach the Registration Sensor in time. Note that this sensor is mounted on the HVPS. |
| 08-700 | Out Bin Full | Paper exit area is full. |
| 09-100 | Toner Low | Note that this fault is based on a pixel counter and not a sensor, so shaking the cartridge won’t help. Just have a new cartridge ready for when it is needed. |
| 09-350 | Print Cartridge Warning | The print cartridge count is nearly up. |
| 09-450 | Replace Print Cartridge | |
| 09-550 | Print Cartridge not detected | The print cartridge CRUM chip is not detected by the CRUM reader board. Check the contact springs in the machine. |
| 09-820 | Print Cartridge is not OEM | |
| 09-830 | Print Cartridge is the wrong version for your machine’s region or plan | Read above about the various cartridge types. This fault would happen if you tried to install a DMO region cartridge in a U.S. machine or vice versa for example, or if you tried to install a 3550 ctg in a 3635. |
| 10-100, 10-200 | Fuser Low Temperature detected during a copy or print job | |
| 10-200 | Fuser Failed to warm up | |
| 10-300 | Over Heat Error | Check the fuser cooling fan and the fuser’s thermistor. |
| 10-500 * | Fuser Warning | Fuser Counter is nearing end of life. |
| 10-510 * | Replace Fuser | Fuser Counter has reached end of life. *Read below for how to reset the fuser life counter. |
| 14-100 | Scanner CCD Lock | Raise the Doc Feeder and make sure the scan carriage lock is fully disengaged. |
| 15-100 thru 15-830 | Scan to Email Problems | |
| 17-100 thru 17-610 | Network Controller Errors | Note that next to the Ethernet port are two LED’s; the upper one means the Network Board is ready, and the lower one blinking means that the network is ok. |
| 17-700 thru 17-810 | DHCP Server Errors | |
| 17-900 | 802.1X Authentication Error | |
| 20-100 thru 20-900 | Fax Problems |
* Resetting the Fuser Count:
This is only necessary on the Phaser 3635 because the 3550 doesn’t bother keeping count of the number of prints made on the fuser. Once you are in Diagnostics Mode (read below), select ‘Service Info’ and then touch ‘HFSI’ (High Frequency Service Items). A chart with the two HFSI’s which this model tracks will be shown (the fuser and the Document Feed Head are the only two choices). Choose ‘fuser’ and touch ‘Reset’ followed by ‘OK’. You can also change the ‘max value’ if you want to. Setting the max value to ‘0’ will effectively make the HFSI not tracked, meaning the machine will never call for that HFSI again.
System Administration Tools:
The Administrator Tools give you lots of choices and control over the machine’s setup in a relatively easy to follow menu. The two models have different approaches for how to get into this Tools mode. Read below about each.
For Phaser 3635: Press the ‘Log In / Out’ button and enter the administrator password (the default is ‘1111’). Then press the ‘Machine Status’ button and select the ‘Tools’ tab.
For WC-3550: Press the ‘Machine Status’ button, scroll down to ‘System Setup’ and press the ‘OK’ key. Enter the administrator password (the default is ‘1111’) & then press ‘OK’ again.
Entering Diagnostics:
Here again, the two models have different approaches for how to get into Diagnostic Mode.
For Phaser 3635: From the powered-on state, press and hold down the ‘#’ button and while still holding #, press the ‘Log In / Out’ button and a password screen will appear. Enter the password ‘1934’ followed by ‘OK’.
For WC-3550: Press the ‘Menu’ button, and then press the ‘#’ button and a password screen will appear. Enter the password ‘1934’ followed by ‘OK’.
Once you’re in Diagnostics, you can look around through the menus and you’ll find it’s pretty friendly. In a future article, we’ll have to come back to list the important Component Control and NVM (memory) codes.
Well I hope this serves as an icebreaker for any of you who are going to be repairing one of these two models for the first time. Happy repairs folks!
